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Добірка наукової літератури з теми "Process flowsheet"

Автор: Grafiati

Опубліковано: 30 травня 2022

Оновлено: 31 травня 2022

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Статті в журналах з теми "Process flowsheet"

Ali, Syed Sadiq, Mohammad Asif, and Avijit Basu. "Design and simulation of high purity biodiesel reactive distillation process." Polish Journal of Chemical Technology 21, no. 3 (September 1, 2019): 1–7. http://dx.doi.org/10.2478/pjct-2019-0022.

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Abstract Biodiesel is a promising energy substitute of fossil fuels since it is produced from renewable and biodegradable sources. In the present work, reactive distillation (RD) process is designed and simulated using Aspen Plus process simulator to produce biodiesel of high purity through esterification reaction. The simultaneous reaction and separation in same unit enhances the biodiesel yield and composition in RD process. Two flowsheets are proposed in present work. In the first flowsheet, the unreacted methanol is recycled back to reactive distillation column. Biodiesel with 99.5 mol% purity is obtained in product stream while the byproduct stream comprises 95.2 mol% water, which has to be treated further. In the second flowsheet, a part of methanol recycle is split and purged. In this case, the biodiesel composition in product stream is 99.7 mol% whereas water composition is 99.9 mol% in byproduct stream, which can be reused for other process without treatment.

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Zhang, Tie Min, Jian Jun Fang, Tai Guo Jiang, Shan Wang, and Ying Bo Mao. "Impact of Closed Flowsheet Structure on Oxidised Copper Ores in Huidong." Advanced Materials Research 926-930 (May 2014): 337–40. http://dx.doi.org/10.4028/www.scientific.net/amr.926-930.337.

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Flotation experimental research is carried out on a certain oxidised copper ores in Huidong, Sichuan province. The ores belongs to the typical oxidised ores. For the characteristics of the mine and the scene of the test requirements, five different flowsheets were test. Under the proper process conditions, the good technical indexes were obtained in all flowsheets. But the the fourth flotation flowsheet was choosed. The principle process of two roughing, one scavenging and two cleaning were used in flotation process. Both the scavenging foam and tailing of first cleaning are returned to the first roughing work and tailing of second cleaning is returned to first cleaning work in closed circuit.

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Kos, Peter. "Short SRT (solids retention time) nitrification process/flowsheet." Water Science and Technology 38, no. 1 (July 1, 1998): 23–29. http://dx.doi.org/10.2166/wst.1998.0007.

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The short SRT nitrification process/flowsheet was developed to provide an inexpensive alternative for plants in the northern climates which need to upgrade their activated sludge process for year-round nitrification or nitrogen removal. In this process/flowsheet supplemental nitrifiers are added daily to the activated sludge process to replenish nitrifiers removed with the wasted activated sludge. The supplemental nitrifiers are grown in a separate small side-stream aeration tank using ammonia available in the digested sludge dewatering liquid or in the digester supernatant. Paper presents description of this flowsheet, the theoretical background and results of modeling. Modeling of this process/flowsheet showed that the addition of the supplemental nitrifiers allows the main stream activated sludge process to nitrify during low winter temperatures at very low SRT values. For example an SRT of 7 to 10 days at 10°C is required, instead of 13 to 18 days for conventional nitrification. Thus this process/flowsheet can provide nitrification in a substantially smaller aeration tank than required for the conventional nitrification.

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Barrett Jr, W. M., and J. van Baten. "Evaluating Process Sustainability Using Flowsheet Monitoring." Chemical Engineering & Technology 35, no. 8 (July 3, 2012): 1405–11. http://dx.doi.org/10.1002/ceat.201100603.

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Garner, K. C., N. J. Peberdy, and C. N. Moreton. "Process and process control design using dynamic flowsheet simulation." Mining, Metallurgy & Exploration 3, no. 1 (February 1986): 41–45. http://dx.doi.org/10.1007/bf03402634.

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Stephenson, Tom. "A process engineering approach to water and wastewater treatment education." Water Science and Technology 34, no. 12 (December 1, 1996): 191–95. http://dx.doi.org/10.2166/wst.1996.0334.

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Development of more stringent water quality standards has been met with development of more sophisticated processing. It is argued that the skills and knowledge of the process engineer are now required to design, operate and manage treatment plants of today. The postgraduate degree courses run by the School of Water Sciences adopt a process engineering approach, giving students a fundamental understanding of unit operations before applying them in the context of the flowsheet. This is achieved by having three parts to a course: a taught element for fundamental skills and knowledge; group design projects for applications of unit operations in flowsheets; and a practical thesis project for application of novel unit operations. Industrial lecturers, groupwork and oral presentation of work helps develop skills relevant to future careers in water and wastewater treatment.

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Farkas, Tivadar, Endre Rev, and Zoltan Lelkes. "Process flowsheet superstructures: Structural multiplicity and redundancy." Computers & Chemical Engineering 29, no. 10 (September 2005): 2180–97. http://dx.doi.org/10.1016/j.compchemeng.2005.07.007.

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Farkas, Tivadar, Endre Rev, and Zoltan Lelkes. "Process flowsheet superstructures: Structural multiplicity and redundancy." Computers & Chemical Engineering 29, no. 10 (September 2005): 2198–214. http://dx.doi.org/10.1016/j.compchemeng.2005.07.008.

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Marquardt, W., P. Holl, and E. D. Gilles. "Dynamic Process Flowsheet Simulation - An Important Tool in Process Control." IFAC Proceedings Volumes 20, no. 5 (July 1987): 369–74. http://dx.doi.org/10.1016/s1474-6670(17)55465-8.

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Buchholz, Moritz, Johannes Haus, Lukas Blesinger, Christian Riemann, Swantje Pietsch, Frank Kleine Jäger, and Stefan Heinrich. "Process Design of a Multistage Drying Process via Flowsheet Simulation." Chemie Ingenieur Technik 93, no. 8 (March 2021): 1287–94. http://dx.doi.org/10.1002/cite.202000207.

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Більше джерел

Дисертації з теми "Process flowsheet"

Alqahtani, Abdullah. "Integrated approach to chemical process flowsheet synthesis." Thesis, Loughborough University, 2008. https://dspace.lboro.ac.uk/2134/4034.

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Chemical process synthesis is an open ended step of process design as it deals with the problem of how to develop and integrate the chemical process flowsheet. Over the past four decades, very few systematic procedures have been proposed for the rigorous synthesis of complete chemical process flowsheets. Mathematical design and heuristics from experience of past processes are the two main methods usually employed in process synthesis. Most approaches for new designs use heuristics based on studying reaction and separation systems in isolation. This thesis discusses the development of a new process synthesis systematic procedure and software that integrates a knowledge based system with Aspen HYSYS process simulator, HYSYS optimizer, Aspen Icarus economic evaluator, and databases, utilising knowledge from existing industrial processes to obtain design rules. The proposed generic superstructure for the synthesis and optimization of reaction-separation-recycle systems has been validated. To account for the non-ideal behaviour of reactors, modular simulation is used and an example of the approach is illustrated for a fluidized bed reactor. Preliminary work in customizing Aspen HYSYS to simulate new unit operation has been illustrated. A Visual Basic for Application (VBA) programming code has been developed to link the integrated knowledge based system (IKBS) to Aspen HYSYS. The prototype IKBS has been applied for the selection of reactor-separator-recycle systems for ethylene oxide, ethylene glycol, acetic acid and cumene manufacturing processes as case studies. A wide range of chemical reactors and separators were considered during the selection process and then elimination occurs at different levels leading to the best alternatives being selected for simulation, optimization and economic evaluation in the second phase of the IKBS for future development. The suggested alternative reactor-separator-recycle systems by the IKBS include currently used processes in addition to novel and recommended reactors/separators in industrial research. The proposed integrated knowledge based approach to chemical process flowsheet synthesis is expected to yield a cost effective design methodology for the petrochemical industry.

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Hutton, Douglas. "Knowledge based flowsheet modelling for chemical process design." Thesis, University of Edinburgh, 1990. http://hdl.handle.net/1842/15084.

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The aim of this work was to develop an experimental tool to perform flow-sheeting tasks throughout the course of chemical process design. Such design proceeds in a hierarchical manner increasing the amount of detail in the description of the plant, and, correspondingly, in the mathematical models used to describe the plant. The models range from the simplest overall mass balance to rigorous unit models, and the calculations required in the course of a design may include the modelling of the complete plant or any of its constituent parts at any level of detail between these two extremes. Object oriented programming has been used to represent the hierarchy of units required throughout a hierarchical design. A flexible modelling tool requires that models compatible with both the designer's intention and the context of the design are created. Sets of equations are defined in a generic form independent of process units with their selection as part of a model being dependent on the function and context of the unit being modelled. The expansion of the generic equation descriptions is achieved with reference to the structure of the unit, e.g. number of inlets and outlets, while the context of an equation determines the form of the equation to be applied, e.g. ideal or non-ideal behaviour. Equations are, therefore, represented as relations between a process item and its structural and contextual properties. An increase in modelling flexibility is obtained by allowing the designer to interact with generated models. Different sets of equations can be selected within constraints imposed by the system. At a lower level, terms in individual equations can be modified for particular applications. In chemical process design, many different analyses are performed. To demonstrate the application of different tools to a central model, the modelling system has been incorporated within a process synthesis framework. The application of the system to simple design case studies is described.

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Palmer, Kurt D. "Data collection plans and meta models for chemical process flowsheet simulators." Diss., Georgia Institute of Technology, 1998. http://hdl.handle.net/1853/24511.

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Kisala, Thomas P. "Successive Quadratic Programming in sequential modular process flowsheet simulation and optimization." Thesis, Massachusetts Institute of Technology, 1985. http://hdl.handle.net/1721.1/99554.

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Thesis (Sc. D.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 1985.
MICROFICHE COPY AVAILABLE IN ARCHIVES AND SCIENCE.
Bibliography: leaves 244-248.
by Thomas Patrick Kisala.
Sc.D.

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Van, Wyk Andries Pieter. "Flowsheet development and comparison for the recovery of precious metals from cyanide leach solutions." Thesis, Stellenbosch : Stellenbosch University, 2014. http://hdl.handle.net/10019.1/86302.

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Thesis (MEng)--Stellenbosch University, 2014.
ENGLISH ABSTRACT: The Platreef ore deposit, situated in the Bushveld Igneous Complex, is one of the world’s largest platinum group metal (PGM) resources. The mineralogy of this resource is, however, unique as it consists of complex PGM mineralization with mainly copper and nickel, at very low PGM grades. The PGMs are mainly present in the ore as slow floating refractory minerals resulting in marginal process economics when processing via traditional mill-float-smelt processes. A new process is currently being investigated to extract PGMs from low grade Platreef ore and concentrate using a sequential heap leach process entailing heap bioleaching and high temperature cyanide leaching. The heap bioleach extracts the base metals in an acidic sulphate medium using a mixed culture of mesophiles and thermophiles. After heap bioleaching, the heap will be reclaimed, rinsed and restacked for high temperature cyanide leaching where the cyanide liquor is directly heated via solar energy in panels. Platinum, palladium and gold are extracted during the cyanide leaching stage and then recovered from the pregnant liquor either by adsorption onto activated carbon or ion exchange resins. Final metal recovery will proceed by techniques such as electrowinning and precipitation. In this thesis, process options for the recovery of platinum group metals from cyanide solutions were identified with different flowsheet alternatives developed utilizing these options. Simulations were made for the different processing alternatives with the objective of finding the alternative flowsheet to maximise net present value. The various processing options were simulated, combining data from concurrent experimental studies and data reported in literature with kinetic adsorption models. This was combined with economic models to arrive at an optimum design for each flowsheet alternative. Seven different processing alternatives for the recovery of platinum group metals from cyanide solutions were developed and investigated. These included two different activated carbon flowsheets as well as five different ion exchange resin flowsheets. The flowsheets differ in the elution procedures as well as the use of single or multiple resins. The well-known Merrill Crowe precipitation process was investigated but was found to yield unsatisfactory results. In each alternative, the cyanide solution is sent to a SART (sulphidization, acidification, recycling and thickening) plant to remove copper, nickel and zinc from solution prior to upgrading by means of adsorption onto activated carbon or ion exchange resins and subsequent elution. The platinum group metals are recovered from the eluate by precipitation using an autoclave, producing a solid product consisting of base and precious metals, while gold is recovered by electrowinning. It was found that the overall performance of the resin-in-solution (RIS) flowsheets were superior to that of the carbon-in-solution (CIS) flowsheets, from an overall PGM recovery perspective and product grades. The superior adsorption kinetics and high selectivity of the resins for the PGMs resulted in excellent overall plant performances, with PGM extractions in excess of 97%. Gold extraction efficiencies with resins were found to be lower than those achieved in the CIS flowsheets, mainly due to the higher selectivity of the resins for the divalent platinum and palladium cyanide complexes and poor gold elution efficiencies. The gold concentrations in the feed streams to these processes were, however, very low, at only 8.5% of the total precious metal content. The overall precious metal recoveries of the RIS flowsheets were thus higher than the CIS flowsheets due to the superior PGM extractions. From the cost analyses performed it was found that the RIS flowsheets requires lower initial capital costs, almost 28% lower than that require for the CIS flowsheets, while the operating cost requirements were found to be ±10% lower. This, combined with the high overall precious metal extractions, resulted in the RIS flowsheets to achieve higher net present values than those of the CIS flowsheets over an assumed project life of 15 years. The optimum flowsheet proposed for the recovery of precious metals from cyanide leach solutions was a RIS flowsheet option that employed the Amberlite PWA 5 resin, capable of extracting platinum, palladium and gold from solution, with elution being performed with a zinc cyanide solution. This process option had the lowest capital and operating cost requirements while achieving similar overall precious metal recoveries as the other flowsheets. Economic analysis of this process yielded the highest net present value, with a 31% increase in the overall return on investment compared to the optimal CIS flowsheet. Based on this, it was concluded that resin technology would be the best process option for recovering precious metals from cyanide leach solutions, however, additional research is required as the current level of process development is only at a concept phase.
AFRIKAANSE OPSOMMING: Die Platrif-erts, geleë in die Bosveld Kompleks, is een van die wêreld se grootste platinum groep metaal (PGM) reserwes. Die mineralogie van hierdie reserwe is uniek en bestaan uit komplekse PGM mineralisasie met hoofsaaklik koper en nikkel, teen baie lae PGM inhoud. Die PGMe is hoofsaaklik teenwoordig in die erts as stadig drywende minerale en dit lei tot marginale ekonomiese uitsigte wanneer hierdie reserwe deur tradisionele metodes verwerk word. Tans word ŉ nuwe proses ondersoek om die PGMe vanuit lae graad Platrif-erts en konsentraat te ontgin deur gebruik te maak van ŉ sekwensiële hooploogproses wat uit ŉ bio-loog en hoë temperatuur sianied loog stappe bestaan. Die bio-loog stap is verantwoordelik vir die ontginning van die basis metale deur gebruik te maak van ŉ suur sulfaat medium bestaande uit ŉ gemengde kultuur van mesofiele en termofiele. Nadat die bio-hooploog stap voltooi is, word die hoop herwin, gewas en herpak vir die daaropvolgende hoë temperatuur sianied loog, waar die sianied oplossing direk verhit word deur die gebruik van son panele. Platinum, palladium en goud word tydens hierdie stap ontgin en kan dan herwin word vanuit die loog oplossing deur gebruik te maak van adsorpsie deur geaktiveerde koolstof of ioon-uitruilings harse. Finale metaal herwinning kan deur elektroplatering en presipitasie vermag word. In hierdie tesis word verskeie proses opsies vir die ontginning en herwinning van PGMe vanuit sianied loog oplossings ondersoek waarna verskeie proses vloei diagram alternatiewe ontwikkel is met die doel om die opsie te vind wat die hoogste netto ekonomiese waarde sal oplewer. Die verskillende opsies is gesimuleer deur gebruik te maak van eksperimentele data gepubliseer in die literatuur en dit te kombineer met kinetiese adsorpsie modelle. Dit was dan gekombineer met ekonomiese modelle om ŉ optimum ontwerp van elke proses te verkry. Sewe verskillende proses vloei diagramme vir die herwinning en ontginning van PGMe vanuit sianied loog oplossings is ontwikkel en ondersoek. Hierdie het twee verkillende geaktiveerde koolstof prosesse en vyf verskillende ioon-uitruilings hars prosesse beslaan. Die opsies het verskil van eluerings metodes en adsorpsie medium. Die alombekende Merrill Crowe presipitasie proses is ook ondersoek, maar daar is gevind dat hierdie proses oneffektiewe resultate oplewer met betrekking tot die herwinning van die drie edel metale. In elke alternatief word die sianied oplossing in ŉ SART proses verwerk, waar die basis metale herwin word, gevolg deur die opgradering van die edel metale d.m.v. geaktiveerde koolstof adsorpsie of ekstraksie m.b.v. ioon-uitruilings harse, gevolg deur eluering. Die PGMe word dan herwin vanuit die eluerings oplossing deur termiese degradering van die metaal sianied komplekse, wat ŉ hoë graad presipitaat lewer bestaande uit die basis en edel metale. Goud word herwin d.m.v. elektroplatering. Daar is bevind dat die algehele verrigting van die ioon-uitruilings hars opsies beter was as die van die geaktiveerde koolstof opsies, beide van ŉ algehele edel metaal herwinnings en produk suiwerheid perspektief. Die verhoogde adsorpsie kinetika en hoër PGM selektiwiteit van die harse het daartoe gelei dat uitstekende algehele PGM herwinning verkry is in hierdie opsies, meer as 97%. Goud ekstraksie deur die harse was laer as wat verkry was deur die geaktiveerde koolstof opsies, weens die hoër selektiwiteit van die harse vir die divalente platinum en palladium sianied komplekse en laer hars eluering effektiwiteit. Die goud konsentrasies in die voer strome na die prosesse was laag, en het sowat 8.5% van die totale edel metale uitgemaak, wat bygedra het tot die lae goud herwinning. Algeheel was die edel metaal herwinning van die hars prosesse beter as die van die koolstof prosesse a.g.v. die hoër PGM adsorpsie. Koste evaluerings van die verskillende vloeidiagramme het getoon dat die hars opsies laer kapitaal kostes benodig, omtrent 28% minder as die koolstof opsies, terwyl bedryfskostes omtrent 10% minder was. Dit het bygedra tot die feit dat die ioon-uitruiling hars opsies ŉ hoër algehele netto ekonomiese waarde oor ŉ projek leeftyd van 15 jaar sal hê, aangesien de PGM ekstraksie, en dus die jaarlikse inkomste, ook hoër was. Die algehele proses vloei diagram wat voorgestel is vir die herwinning van edel metale vanuit sianied loog oplossings is die hars opsie wat gebruik maak van die Amberlite PWA 5 hars, wat in staat is om platinum, palladium en goud terselfdertyd te absorbeer, gevolg deur die eluering van die hars deur die gebruik van ŉ sink sianied oplossing. Hierdie proses het die laagste kapitaal en bedryfskostes getoon terwyl algehele PGM herwinning om en by dieselfde was as al die ander opsies. Hierdie proses sal verder ŉ 31% verhoging in die opbrengs op belegging lewer in vergelyking met die optimum geaktiveerde koolstof opsie. Die algehele gevolgtrekking is dat hars tegnologie die beter opsie sal wees vir die herwinning van edel metale vanuit sianied loog oplossings. Addisionele navorsing is dus nodig om resultate te verbeter aangesien hierdie studie slegs op ŉ konsep fase benadering was.

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Gaubert, Emmanuel. "Mass transfer and flowsheet modelling in the PUREX process with minature annular centrifugal contactors." Thesis, University of Manchester, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.495658.

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Raymead, B. "Synthesis of process flowsheets." Thesis, London South Bank University, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.618638.

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A library of process unit models has been developed for synthesis studies that may be comparable to those developed for computer flowsheeting. The library has been integrated into an implicit enumeration process synthesis package for the generation of promising processes at the early stages of process design studies. The package allows consideration of heat integration in the conceptual synthesis of complete processes. Models for a number of commonly occurring units have been developed and a number of published synthesis studies have been reproduced including processes with non-sharp separations and with recycles. Previously published implicit enumeration synthesis procedures have used only very simplified models. Developments are reported that enable flowsheets with more realistic units to be generated. The basis of the synthesis used in this study is a rapid, stream-based implicit enumeration algorithm which combines dynamic programming and branch and bound optimisation. The technique enables the inclusion of flowsheets with multicomponent recycles and with unpredefined separation units. The program synthesises process flowsheets to meet user specified performance requirements. Thus, given process feeds and desired products, the program will select the necessary processing units and determine the way in which they are connected together. Processes synthesised, include vapour streams and liquid streams and include energy integration, handled through the use of 'heat increments' (pseudo-components) which record the temperature dependent net energy surplus or deficit in any stream. Processes can be more closely optimised by using multiple heat increments for a finer discretisation of the heat fluxes. A method of costing pressure changes between units has been introduced to allow the effect of pressure matching to be more rigorously incorporated in synthesising process flowsheets. Reactor models incorporating full kinetic expressions for more rigorous costing purpose have also been developed. Complete plant process flowsheets of sufficient scale to be of industrial relevance are generated and a number of case studies published in the literature have been reproduced and, in a number of cases, superior designs developed. Results to date compare favourably to other methods (e.g. AI, MINLP) both in quality of process design achieved and in computational time required to synthesise these designs.

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Pardoe, Julie. "Optimisation strategies and methods for thermal desalination process flowsheets." Thesis, University of Leeds, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.278067.

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Овчаренко, Ольга Олександрівна. "Композиційні електрохімічні покриття на основі міді та нікелю, модифіковані ультрадисперсними частинками". Thesis, НТУ "ХПІ", 2016. http://repository.kpi.kharkov.ua/handle/KhPI-Press/22725.

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Дисертація на здобуття наукового ступеня кандидата технічних наук за спеціальністю 05.17.03 – технічна електрохімія. – Національний технічний університет "Харківський політехнічний інститут", м. Харків, 2016 р. Дисертація присвячена розробці технології композиційних електрохімічних покриттів на основі міді та нікелю, армованих нанорозмірним оксидом алюмінію. Запропоновано технологічну схему формування композитів Cu-Al₂O₃ та Ni-Al₂O₃. Запропоновано метод хімічного диспергування корунду з отриманням гідрозолю Al₂O₃. Встановлено закономірності електрохімічних процесів осадження мідних та нікелевих композиційних покриттів. Визначено вплив концентрації дисперсної фази в електролітах-суспензіях на фізико-механічні властивості матеріалів, такі як мікротвердість, межа міцності та межа текучості. Встановлено, що отримані композити мають значно вищий рівень міцності при досить низьких концентраціях Al₂O₃ в електроліті (1-2 г/дм³), у порівнянні зі зразками, отриманими з додаванням грубодисперсного оксиду алюмінію. Результати атомносилової мікроскопії дозволили визначити розмір кристалітів та оцінити топографію поверхні покриттів, встановлено вплив вмісту корунду на склад та морфологію покриттів, а результати електронної мікроскопії вказують на збереження кристалічної гратки.
Thesis for granting the Degree of Candidate of Technical sciences in specialty 05.17.03 – Technical Electrochemistry. – National Technical University "Kharkiv Polytechnic Institute". Kharkiv, 2016. Dissertation is devoted to development of the technology of composite electrochemical coatings based on copper and nickel, reinforced nanoscale aluminium. The method of chemical dispersion to produce a hydrosol of corundum Al2O3 is proposed. Electrochemical processes regularities of the copper and nickel composite coatings deposition have established. The influence of a dispersed phase concentration in electrolytes-suspensions on the physico-mechanical properties of materials, such as microhardness, tensile strength and yield strength, has detected. It has shown the resulting composites have higher strength at sufficiently low concentrations in the Al₂O₃-electrolyte (1-2 g/dm³) compared with samples obtained by the introduction of the coarse-dispersion aluminium electrolyte. The influence of the corundum content on the composition and morphology of coatings has been found experimentally. The electron microscopy results detects to a continuation of a crystal lattice. The results of atomic force microscopy have allowed to determine the crystallite size and evaluate the topography of the surface. The flowchart of the electrochemical formation of Cu-Al₂O₃ and Ni-Al₂O₃ composites are proposed.

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Книги з теми "Process flowsheet"

Ponce-Ortega, José María, and Luis Germán Hernández-Pérez. Optimization of Process Flowsheets through Metaheuristic Techniques. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-319-91722-1.

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Prodof: A rule-based process flowsheet diagnostic program. Ottawa: National Library of Canada, 1990.

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Ponce-Ortega, José María, and Luis Germán Hernández-Pérez. Optimization of Process Flowsheets through Metaheuristic Techniques. Springer, 2018.

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Ponce-Ortega, José María, and Luis Germán Hernández-Pérez. Optimization of Process Flowsheets through Metaheuristic Techniques. Springer, 2019.

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Process Design Principles Synthesis, Analysis and Evaluation, Simulation of Process Flowsheets. John Wiley & Sons Inc, 2000.

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Simulation of Process Flowsheets: Version 2.0 for IBM Compatibles. John Wiley & Sons, 2000.

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Wauquier, Jean-Pierre. Petroleum Refining: Crude Oil, Petroleum Products, Process Flowsheets (Publications De L'institut Francais Du Petrole.). Editions Technip, 1996.

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Kott, Alexander. Artificial Invention: Synthesis of Innovative Thermal Networks, Power Cycles, Process Flowsheets and Other Systems. Dissertation.com, 2005.

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Частини книг з теми "Process flowsheet"

Spinola, Michele, Alexander Keimer, Doris Segets, Lukas Pflug, and Günter Leugering. "Modeling, Simulation and Optimization of Process Chains." In Dynamic Flowsheet Simulation of Solids Processes, 549–78. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-45168-4_16.

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Fragnière, Greta, Ann-Christin Böttcher, Christoph Thon, Carsten Schilde, and Arno Kwade. "Dynamic Process Models for Fine Grinding and Dispersing." In Dynamic Flowsheet Simulation of Solids Processes, 199–236. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-45168-4_6.

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Markauskas, Darius, and Harald Kruggel-Emden. "Development of a Dynamic-Physical Process Model for Sieving." In Dynamic Flowsheet Simulation of Solids Processes, 141–98. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-45168-4_5.

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Cozzi, A. D. "Flammable Gasses in the Saltstone Process Flowsheet." In Ceramic Transactions Series, 31–39. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2010. http://dx.doi.org/10.1002/9780470930991.ch4.

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Sander, Sören, Lizoel Buss, and Udo Fritsching. "Process Modeling for Dynamic Disperse Particle Separation and Deposition Processes." In Dynamic Flowsheet Simulation of Solids Processes, 3–35. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-45168-4_1.

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Grund, Friedrich, Klaus Ehrhardt, Jürgen Borchardt, and Dietmar Horn. "Heterogeneous Dynamic Process Flowsheet Simulation of Chemical Plants." In Mathematics — Key Technology for the Future, 184–93. Berlin, Heidelberg: Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/978-3-642-55753-8_15.

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Lindmüller, Lennard, Johannes Haus, Ernst-Ulrich Hartge, and Stefan Heinrich. "Dynamic Modelling of Reactive Fluidized Bed Systems Using the Example of the Chemical Looping Combustion Process for Solid Fuels." In Dynamic Flowsheet Simulation of Solids Processes, 37–65. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-45168-4_2.

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Verbaan, Niels, Mike Johnson, Tassos Grammatikopoulos, Eric Larochelle, Scott Honan, Kelton Smith, and Rick Sixberry. "A Process Flowsheet for the Extraction of Niobium, Titanium, and Scandium from Niocorp’s Elk Creek Deposit." In The Minerals, Metals & Materials Series, 2523–39. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-95022-8_213.

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Ponce-Ortega, José María, and Luis Germán Hernández-Pérez. "Process Simulators." In Optimization of Process Flowsheets through Metaheuristic Techniques, 5–25. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-91722-1_2.

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Kotalczyk, Gregor, and Frank Einar Kruis. "Compartmental Population Balances by Means of Monte Carlo Methods." In Dynamic Flowsheet Simulation of Solids Processes, 519–48. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-45168-4_15.

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Тези доповідей конференцій з теми "Process flowsheet"

Homma, Shunji, Jun-Ichi Ishii, Jiro Koga, Shiro Matsumoto, Toshiaki Kikuchi, Takahiro Chikazawa, and Atsuhiro Shibata. "Flowsheet Analysis of U-Pu Co-Crystallization Process as a New Reprocessing System." In 14th International Conference on Nuclear Engineering. ASMEDC, 2006. http://dx.doi.org/10.1115/icone14-89196.

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A new fuel reprocessing system by U-Pu co-crystallization process is proposed and examined by flowsheet analysis. This reprocessing system is based on the fact that hexavalent plutonium in nitric acid solution is co-crystallized with uranyl nitrate, whereas it is not crystallized when uranyl nitrate does not exist in the solution. The system consists of five steps: dissolution of spent fuel, plutonium oxidation, U-Pu co-crystallization as a co-decontamination, re-dissolution of the crystals, and U re-crystallization as a U-Pu separation. The system requires a recycling of the mother liquor from the U-Pu co-crystallization step and the appropriate recycle ratio is determined by flowsheet analysis such that the satisfactory decontamination is achieved. Further flowsheet study using four different compositions of LWR spent fuels demonstrates that the constant ratio of plutonium to uranium in mother liquor from the re-crystallization step is achieved for every composition by controlling the temperature. It is also demonstrated by comparing to the Purex process that the size of the plant based on the proposed system is significantly reduced.

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Sorin, M., A. Hammache, and O. Diallo. "A Thermodynamic Approach for Conceptual Design of Chemical Processes." In ASME 1999 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1999. http://dx.doi.org/10.1115/imece1999-0859.

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Abstract The purpose of this paper is to develop a new thermodynamic approach for conceptual design of chemical processes. The approach is based on a concept of reducible superstructure and exergy load distribution analysis. It starts by building a specific reducible structure of the process flowsheet called the “competitive process” superstructure. A two-step exergy analysis is carried out on the superstructure to reduce it to a final optimal flowsheet topology. In the first step, only the design options with the highest impact on the utilizable exergy coefficient of the overall flowsheet is kept for subsequent analysis. In the next step, the distribution of exergy loads from the less efficient units to the more efficient ones makes it possible to relocate the units inside the flowsheet. The new approach was applied for the design of a gas separation section within a benzene synthesis chemical plant. It has been found that the overall exergy efficiency of the benzene synthesis is highest with the design option using a membrane for hydrogen recuperation and an absorber for benzene recuperation. The final step is the relocation of the absorber achieved through the application of the exergy load distribution analysis. Compared with the previous solutions obtained by the hierarchic and mathematical approaches, a new flowsheet for benzene synthesis has been proposed. It consumes the least amount of raw materials, such as hydrogen and toluene, and produces the least amount of discharged gas as waste.

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Royyuru, Haritha, Lijian Sun, Yitung Chen, Hsuan-Tsung Hsieh, Randy Clarksean, Darrell W. Pepper, George Vandegrift, Jackie Copple, and James Laidler. "Development of Systems Engineering Model for UREX Process." In ASME 2003 International Mechanical Engineering Congress and Exposition. ASMEDC, 2003. http://dx.doi.org/10.1115/imece2003-42043.

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The mission of the Transmutation Research Program (TRP) at University of Nevada, Las Vegas (UNLV) is to establish a national nuclear technology research capability, a nuclear engineering test bed that can carry out effective transmutation and advanced reactor research and development effort. The main task of the Chemical Engineering Division, Argonne National Laboratories (ANL) is to design, model, and demonstrate countercurrent uranium solvent-extraction process. The division has developed MS Excel macros interface, called Argonne Model for Universal Solvent Extraction (AMUSE), to calculate flowsheets for treating high-level liquid waste. The AMUSE code forms all computational basis for flowsheet design and process development. The extraction process, including U, Tc, Pu/Np, Cs/Sr, and Am/Cm separations, is complicate and requires further system optimization for robust performance. A systems engineering model is proposed by the Nevada Center for Advanced Computational Methods (NCACM) at UNLV that provides process optimization through the adjustment on feed compositions, stages, number of sections and flow rates. The NCACM is designing and developing a MS Visual Basic graphical user interface (GUI) that provides multiple-run results and data reporting and presentation. All calculations are made by the interaction with the MS Excel macros, defined in ANL AMUSE codes. An optimization model, developed with the GUI, interconnects with MatLab’s optimization toolbox, commercial software from MathWorks. Due to the nature of the AMUSE code, all the computational results are generated from the existing AMUSE macros. The model also examines measure effects of process deviations, caused by operational upsets or product diversion.

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Law, Jack, Dean Peterman, Cathy Riddle, David Meikrantz, and Terry Todd. "Advances in Development of the Fission Product Extraction Process for the Separation of Cesium and Strontium From Spent Nuclear Fuel." In The 11th International Conference on Environmental Remediation and Radioactive Waste Management. ASMEDC, 2007. http://dx.doi.org/10.1115/icem2007-7077.

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The Fission Product Extraction (FPEX) Process is being developed as part of the United States Department of Energy Advanced Fuel Cycle Initiative for the simultaneous separation of cesium (Cs) and strontium (Sr) from spent light water reactor (LWR) fuel. Separation of the Cs and Sr will reduce the short-term heat load in a geological repository, and when combined with the separation of americium (Am) and curium (Cm), could increase the capacity of the geological repository by a factor of approximately 100. The FPEX process is based on two highly specific extractants: 4,4',(5')-Di-(t-butyldicyclo-hexano)-18-crown-6 (DtBuCH18C6) and Calix[4]arene-bis-(tertoctylbenzo-crown-6) (BOBCalixC6). The DtBuCH18C6 extractant is selective for strontium and the BOBCalixC6 extractant is selective for cesium. Results of flowsheet testing of the FPEX process with a simulated feed solution in 3.3-cm centrifugal contactors are detailed. Removal efficiencies, distribution coefficient data, coextraction of metals, and process hydrodynamic performance are discussed along with recommendations for future flowsheet testing with actual spent nuclear fuel.

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Cho, Wonchul, Kikwang Bae, Chusik Park, Changhee Kim, and Kyoungsoo Kang. "Conceptual Design of Sulfur-Iodine Hydrogen Production Cycle of Korea Institute of Energy Research." In Fourth International Topical Meeting on High Temperature Reactor Technology. ASMEDC, 2008. http://dx.doi.org/10.1115/htr2008-58305.

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The Sulfur-Iodine thermochemical cycle offers a promising approach to the high efficiency production of hydrogen from nuclear power. Several SI cycles have been proposed by several research group. General Atomic (GA) studied I2 separation by extractive distillation using H3PO4. RWTH introduced the concept of reactive distillation. In this process, HIx stream coming from the Bunsen reaction is fed to the column. And HIx is distillated and decomposed at the same time to obtain hydrogen. Korea Institute of Energy Research (KIER) and Japan Atomic Energy Agency (JAEA) concentrate HIx using electro-dialysis cell and concentrated HIx is fed to the column to produce HI vapor, which is decomposed to produce hydrogen. HI was separated from HIx solution by an extractive distillation using H3PO4. However, a large amount of electric energy was required to recycle H3PO4. Most of SI processes have difficulties producing hydrogen because it has excess iodine in HI decomposition Section. SI cycle with electrodialysis cell uses membrane reactor to separate H2 and HIx. The current state of the membrane technology is not compatible with the process needs. This study examined several cases of flowsheets to overcome the problems mentioned above. The flowsheets were revised by adding the iodine separator and excluding membrane reactor. The thermal efficiency of SI process was analyzed using the revised flowsheet.

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Washiya, Tadahiro, Toshiaki Kikuchi, Atsuhiro Shibata, Takahiro Chikazawa, and Shunji Homma. "Development of Crystallizer for Advanced Aqueous Reprocessing Process." In 14th International Conference on Nuclear Engineering. ASMEDC, 2006. http://dx.doi.org/10.1115/icone14-89292.

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Crystallization is one of the remarkable technologies for future fuel reprocessing process that has safety and economical advantages. Japan Atomic Energy Agency (JAEA) (former Japan Nuclear Cycle Development Institute), Mitsubishi Material Corporation and Saitama University have been developing the crystallization process. In previous study, we carried out experimental studies with uranium, MOX and spent fuel conditions, and flowsheet analysis was considered. [1, 2, 3] In association with these studies, an innovative continuous crystallizer and its system was developed to ensure high process performance. From the design study, an annular type continuous crystallizer was selected as the most promising design, and performance was confirmed by small-scale test and engineering scale demonstration at uranium crystallization conditions. In this paper, the design study and the demonstration test results are described.

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Takata, Takeshi, Yoshikazu Koma, Koji Sato, Takashi Shimada, Yukihide Mori, Shinya Ogumo, and Yasuhiro Ishida. "Conceptual Design Study on Fast Reactor Fuel Reprocessing System Using Super-DIREX Process." In 12th International Conference on Nuclear Engineering. ASMEDC, 2004. http://dx.doi.org/10.1115/icone12-49183.

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A conceptual design study for some alternatives as well as the advanced aqueous reprocessing system has been progressed as a feasibility study on commercialized fast reactor cycle systems. Among these alternatives, the Supercritical fluid Direct Extraction (Super-DIREX) process is expected to minimize the reprocessing cost because the heavy metals (U, Pu, Np, Am and Cm) are directly extracted from the spent fuel powder in a column covering the dissolution, clarification and extraction process of the advanced aqueous process. The conceptual design for the reprocessing plant using Super-DIREX process was conducted considering the flowsheet, mass balance, specification and number of the components and layout of the components. From the result of the evaluation for the reprocessing cost of the plant with the capacity of 50tHM/y, it is found out that about 30% of the reprocessing cost is reduced compared with the advanced aqueous process (the NEXT process). In addition, using the Super-DIREX process, about 30% of wastes generated from the plant are reduced.

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Zitney, Stephen E., Michael T. Prinkey, Mehrdad Shahnam, and William A. Rogers. "Coupled CFD and Process Simulation of a Fuel Cell Auxiliary Power Unit." In ASME 2004 2nd International Conference on Fuel Cell Science, Engineering and Technology. ASMEDC, 2004. http://dx.doi.org/10.1115/fuelcell2004-2490.

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A high-temperature auxiliary power unit (APU) based on solid oxide fuel cell (SOFC) technology is analyzed in this study using coupled computational fluid dynamics (CFD) and process simulation. The tightly integrated process flowsheet consists of a reformer, desulfurizer, SOFC stack, combustor, and various heat exchange and rotating equipment items. A detailed three-dimensional CFD model is used to represent the cross-flow, planar SOFC. Process simulations are used to calculate the overall material and energy balances. Coupled CFD and process simulations are performed over a range of fuel cell currents to generate a voltage current curve and analyze the effect of current on fuel utilization, power density, and overall system efficiency. The fuel cell APU system considered here generated 4.3 kW of power and yielded a maximum fuel-to-electricity conversion efficiency of 45.4% at a current of 18 amperes. Integrated CFD and process simulations provide a better understanding of the fluid mechanics that drive overall performance and efficiency of fuel cell systems. In addition, the analysis of the fuel cell using CFD is not done in isolation but within the context of the whole APU process.

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Sun, Lijian, Haritha Royyuru, Hsuan-Tsung Hsieh, Yitung Chen, George Vandegrift, Jackie Copple, and James Laidler. "Development of Systems Engineering Model for Spent Fuel Extraction Process." In ASME 2004 International Mechanical Engineering Congress and Exposition. ASMEDC, 2004. http://dx.doi.org/10.1115/imece2004-60178.

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The mission of the Transmutation Research Program (TRP) at University of Nevada, Las Vegas (UNLV) is to establish a nuclear engineering test bed that can carry out effective transmutation and advanced reactor research and development effort. Chemical Engineering Division, Argonne National Laboratories (ANL) is in charge the design, modeling, and demonstration of countercurrent solvent-extraction process for treating high-level liquid waste, such as U and Tc. The Nevada Center for Advanced Computational Methods (NCACM) at UNLV is developing a systems engineering model that provides process optimization through the automatic adjustment on input parameters, such as feed compositions, stages, flow rates, etc., based on the extraction efficiency of components and concerned output factors. An object-oriented programming (OOP) is considered. Previously designed Microsoft (MS) Excel macro-based program, Argonne Model for Universal Solvent Extraction (AMUSE) code, based on firm understanding of the chemistry and thermodynamics, is the core module for Uranium Extraction process (UREX). Currently AMUSE is the only available module. The Transmutation Research Program System Engineering Model Project (TRPSEMPro) consists of task manager, task integration and solution/monitor modules. A MS SQL server database is implemented for managing large data flow from optimization processing. Task manager coordinates and interacts with other two modules. Task integration module works as a flowsheet constructor that builds task hierarchy, input parameter values and constrains. Task solution/monitor component presents both final and in-progress outputs in tabular and graphical formats. The package also provides a multiple-run process that executes a design matrix without invoking the optimization module. Experimental reports can be generated through database query and formatting.

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Kattke, K. J., and R. J. Braun. "Implementing Thermal Management Modeling Into SOFC System-Level Design." In ASME 2010 8th International Conference on Fuel Cell Science, Engineering and Technology. ASMEDC, 2010. http://dx.doi.org/10.1115/fuelcell2010-33351.

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Effective thermal management is critical to the successful design of small (<10 kW) solid oxide fuel cell (SOFC) power systems. While separate unit processes occur within each component of the system, external heat transport from or to components must be optimally managed and taken into account in system-level design. In this paper, we present a modeling approach that captures thermal interactions among hot zone components and couples this information with system process design. The resulting thermal model is then applied to a mobile SOFC power system concept in the 1–2 kW range to enable a better understanding of how component heat loss affects process gas temperature and flow requirements throughout the flowsheet. The thermal performance of the system is examined for various thermal management strategies that involve altering the convective and radiative heat transfer in the enclosure. The impact of these measures on internal temperature distributions within the cell-stack is also presented. A comparison with results from traditional adiabatic, zero-dimensional thermodynamic system modeling reveals that oxidant flow requirements can be over-predicted by as much as 110% and that important design constraints, such as the magnitude of the maximum cell temperature gradient within the stack, are under-predicted by over 40%.

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Звіти організацій з теми "Process flowsheet"

Karraker, D. G. Modern Pit Process: Flowsheet Studies. Office of Scientific and Technical Information (OSTI), March 2003. http://dx.doi.org/10.2172/809396.

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Pereira, C., and G. F. Vandegrift. Centrifugal Contactor Operations for UREX Process Flowsheet. Office of Scientific and Technical Information (OSTI), October 2013. http://dx.doi.org/10.2172/1132242.

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Pereira, C., and G. F. Vandegrift. Centrifugal Contactor Operations for UREX Process Flowsheet. Office of Scientific and Technical Information (OSTI), May 2012. http://dx.doi.org/10.2172/1131396.

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Pereira, Candido, and George F. Vandegrift. Centrifugal contactor operations for UREX process flowsheet. An update. Office of Scientific and Technical Information (OSTI), August 2014. http://dx.doi.org/10.2172/1226919.

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Fernandez, A., and D. Koopman. SLUDGE BATCH 7 QUALIFICATION AND FLOWSHEET CHEMICAL PROCESS CELL SIMULATIONS. Office of Scientific and Technical Information (OSTI), May 2011. http://dx.doi.org/10.2172/1014153.

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Fernandez, A. Sludge Batch 7 Qualification and Flowsheet Chemical Process Cell Simulations. Office of Scientific and Technical Information (OSTI), March 2011. http://dx.doi.org/10.2172/1009417.

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Zamecnik, J. R., and T. B. Edwards. DWPF nitric-glycolic flowsheet chemical process cell chemistry. Part 1. Office of Scientific and Technical Information (OSTI), February 2016. http://dx.doi.org/10.2172/1237318.

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Law, J. D., R. S. Herbst, K. N. Brewer, and T. A. Todd. Countercurrent flowsheet testing of the TRUEX process with ICPP calcine. Office of Scientific and Technical Information (OSTI), July 1998. http://dx.doi.org/10.2172/656585.

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Washenfelder, D. J. Technology development in support of the TWRS process flowsheet. Revision 1. Office of Scientific and Technical Information (OSTI), October 1995. http://dx.doi.org/10.2172/409860.

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Nichols, Todd Travis, Dean Dalton Taylor, Lance Lauerhass, and Charles Marshall Barnes. Process Options Description for Vitrification Flowsheet Model of INEEL Sodium Bearing Waste. Office of Scientific and Technical Information (OSTI), February 2001. http://dx.doi.org/10.2172/911464.

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