Thematische Bibliographien / Waste gas condensator

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Auswahl der wissenschaftlichen Literatur zum Thema „Waste gas condensator“

Autor: Grafiati

Veröffentlicht am 28. Juni 2021

Zuletzt aktualisiert am 5. Februar 2022

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Zeitschriftenartikel zum Thema "Waste gas condensator"

Bentham, Richard, Nick McClure und David Catcheside. „Biotreatment of an industrial waste oil condensate“. Water Science and Technology 36, Nr. 10 (01.11.1997): 125–29. http://dx.doi.org/10.2166/wst.1997.0374.

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The biotreatment of an industrial waste oil condensate has been investigated. The waste is an oily emulsion resulting from chemical processing and condensation of grease trap wastes and industrial waste oils. The oil consists of a complex mix of hydrocarbons with significant fuel oil and lube oil fractions. Currently this waste is disposed of by incineration. The feasibility of using a biological pretreatment process to remove a significant proportion of the hydrocarbons has been investigated. Enrichment cultures produced a stable bacterial consortium. Flask cultures of this enrichment culture were capable of rapid emulsification of the oil. Within 10 days, 40–50% of the oil waste was degraded. Degradation was monitored using gas chromatographic analysis with flame ionisation detector (GC-FID) and by assessment of microbial dehydrogenase activity using triphenyl tetrazolium chloride (TTC) dye reduction. The enrichment culture consisted of 9 component organisms, 7 Gram negative and one Gram positive organisms. Their degradative abilities in monoculture have been investigated. Degradation of the waste using monocultures was monitored using GC-FID analysis of the Pristane:C17 ratio in the waste. The degradation capability of each of the component organisms in pure culture was similar to that of the consortium.

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Suyitno, Budhi M., Erlanda Augupta Pane, Wina Libyawati, Chatrine Jelita, Hendri Sukma und Ismail Ismail. „An effect analysis of cooling water direction towards condensate oil from scrap tires“. Eastern-European Journal of Enterprise Technologies 2, Nr. 6 (110) (12.04.2021): 30–37. http://dx.doi.org/10.15587/1729-4061.2021.209900.

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The application of pyrolysis for the thermal decomposition of tire waste can be taken as the ideal concept to reduce and recycle tire waste. The product of the process can produce condensate oil, a typical oil that is close to crude oil properties. The critical aspect of the pyrolysis process is the design of the reactor, particularly for the condenser where the rate of heat transfer contributes to the overall quality and quantity of the produced condensate oil. This study focused on the effect of water flow direction on the condensation process of pyrolysis gas. The quantity and quality of the produced oil are examined to observe the effect of the condensation process. Two different water flow directions are tested in the process, namely, counter flow and parallel flow direction. The effect of water flow direction in the condenser clearly affects the pyrolysis process to produce the condensate oil. Based on the production quantity, the counter flow condenser is able to produce 355 ml of condensate oil while the parallel flow one merely 290 ml. Based on the quality of the produced condensate oil, the counter flow condenser is generally better than the parallel flow one where the density, flash point and viscosity are close to crude oil properties. The rate of heat transfer from the condenser to the pyrolysis gas is the main factor that contributes to the quality and quantity of the condensate oil. The average heat transfer for the counter and parallel flow is 2,728 W and 1,865 W, respectively. It can be said that using the counter flow condenser for the pyrolysis reactor can improve the quality and quantity of the condensate oil

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Sulardi, Sulardi. „MEMANFAATKAN CONDENSATE HYDROCARBON NATURAL GAS SEBAGAI FUEL GAS DENGAN PENGATURAN KONDISI OPERASI ALAT HEAT EXCHANGER“. INFO-TEKNIK 20, Nr. 2 (13.01.2020): 129. http://dx.doi.org/10.20527/infotek.v20i2.7722.

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One of the problems faced in operating the fuel gas system is the loss due to wasting condensate hydrocarbons from the fuel gas system surge drum. The purpose of the study was to determine the factors that cause natural gas condensation problems in the fuel drum supply surge gas and provide an overview of how to overcome the problem with the heat exchanger tool operation method. The method used in the research is the research method used with a case study approach to handling wasted condensate hydrocarbon problems and how to overcome them by maximizing the operation of heat exchanger devices. The expected results from this study are that the removal of hydrocarbon condensate can be prevented and utilized as fuel gas. With the results of this study, it is expected to be an innovation in order to adding value to value creation for the company.

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Bortnikova, Svetlana, Nataliya Yurkevich, Anna Devyatova, Natalya Abrosimova, Olga Saeva, Nikolay Cherny, Nadezhda Palchik, Irina Danilenko, Olga Shuvaeva und Dmitry Troitskii. „Transfer of chemical elements in vapor-gas streams at the dehydration of secondary sulfates“. E3S Web of Conferences 98 (2019): 05004. http://dx.doi.org/10.1051/e3sconf/20199805004.

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The elemental composition of vapor-gas streams obtained during heating of secondary hydrous sulfates are presented. Samples of abundant sulfate intergrowth were collected at the Belovo waste heaps and heated at 60ºC in experiments to collect condensates of the releasing vapor-gas streams. A wide spectrum of major and trace elements was determined in the condensate. Chemical elements can be absorbed by the water vapor and migrate with this phase during the dehydration of hydrous sulfates. To determine the mechanisms of migration and the sources of elements in vapor-gas streams, a study of the features of certain hydrous sulphates (antlerite, goslarite, starkeyite, gunningite, siderotile, sideronatrite) by stepwise heating up to 60ºC was conducted. Alteration in the phase composition is controlled by powder X-ray diffractometry. It was determined, that antlerite and starkeite remain stable throughout the temperature range. The beginning of the separation of structural water in goslarite and siderotile occurs at 40°C. Goslarite and sideronatrite at 40°C lost water molecules and transformed to gunningite and Na-jarosite, correspondingly. Structure of siderotile was loosened. The modes of occurrence of the chemical elements in sulfates and pore solution determine the concentrations of elements in the condensates.

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Dzyublo, A. D., S. О. Borozdin und E. E. Altukhov. „Technologies for Safe Handling of Drilling Waste during Well Construction in the Ob Bay“. Occupational Safety in Industry, Nr. 6 (Juni 2021): 52–60. http://dx.doi.org/10.24000/0409-2961-2021-6-52-60.

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Development of the Russian oil and gas fields in the Arctic requires ensuring industrial and environmental safety of conduct of the operations. Large and unique oil and gas condensate fields are discovered in the southern part of the Kara Sea. The Kamennomysskoye-Sea, Severo-Kamennomysskoye, Semakovskoye, Parusovoye, etc. gas condensate fields are located in the Ob Bay of the Kara Sea. The raw material base of the Severo-Obskoye gas condensate field, unique in terms of the reserves, will become the basis for future Arctic LNG projects. Based on the published data, the initial recoverable total hydrocarbon resources in the Ob and Taz bays are about seven billion tons. Active exploration and commissioning of the already discovered fields require the large volumes of well drilling in a freezing sea, the presence of permafrost, and gas hydrates. During construction of the wells and operation of the offshore ice-resistant oil and gas production platforms, it is required to ensure the disposal of drilling waste (cuttings) and domestic water. There are two technologies for waste disposal — injection into the reservoir or into the clay formations. The first one is used in onshore fields, the second one — on the shelf. Injection into a clay reservoir is successfully used in the Lunskoye gas field on the shelf of the Sakhalin island, and on the Prirazlomnoye oil field in the Pechora Sea. The possibility of using the method and the selection of a reservoir for injecting waste into it requires a geological justification, and the reservoir should ensure a stable injectivity of the required volume. The article presents the results of modeling the injection into the formation of drilling waste, and the waste of the household activities for the Kamennomysskoe-Sea gas condensate field. Calculation was made concerning the zone of absorption of the technological waste into the designed well of the offshore ice-resistant stationary platform. Formation allocation for waste injection was made according to the data of a complex of offshore wells geophysical studies. Three packs of sandy-argillaceous rocks with high reservoir properties were selected as the object of industrial waste disposal. Сalculation was carried out related to the radius of the spread of waste (effluent) in the target reservoir considering drilling and operation of twenty five wells, the construction of which is planned for five years. The results of modeling the process of pumping industrial waste of various types into an absorption well showed that the planned volumes can be successfully disposed of in the selected objects. This will allow to ensure functioning of the marine industry and its environmental safety.

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Grycová, Barbora, Ivan Koutník, Adrian Pryszcz und Miroslav Kaloč. „Application of pyrolysis process in processing of mixed food wastes“. Polish Journal of Chemical Technology 18, Nr. 1 (01.03.2016): 19–23. http://dx.doi.org/10.1515/pjct-2016-0004.

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Abstract The food industry produces large amounts of solid and also liquid wastes. Different waste materials and their mixtures were pyrolysed in the laboratory pyrolysis unit to a final temperature of 800°C with a 10 minute delay at the final temperature. After the pyrolysis process of the selected wastes a mass balance of the resulting products, off-line analysis of the pyrolysis gas and evaluation of solid and liquid products were carried out. The highest concentration of methane, hydrogen and carbon monoxide were analyzed during the 4th gas sampling at a temperature of approx. 720–780°C. The concentration of hydrogen was measured in the range from 22 to 40 vol.%. The resulting iodine numbers of samples CHFO, DS, DSFW reach values that indicate the possibility of using them to produce the so-called “disposable sorbents” in wastewater treatment. The WC condensate can be directed to further processing and upgrading for energy use.

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Bortnikova, Svetlana, Natalya Abrosimova, Nataliya Yurkevich, Valentina Zvereva, Anna Devyatova, Olga Gaskova, Olga Saeva et al. „Gas Transfer of Metals during the Destruction of Efflorescent Sulfates from the Belovo Plant Sulfide Slag, Russia“. Minerals 9, Nr. 6 (05.06.2019): 344. http://dx.doi.org/10.3390/min9060344.

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This paper demonstrates the results of experiments for the determination of the composition of gases during the dehydration of sulfates (Na-jarosite, melanterite, and chalcanthite) collected at the surface of pyrometallurgical waste heaps. The volatilization of various elements, and vapor–gas phase transport from three sulfate groups were investigated by stepwise laboratory heating at 45, 55, and 65 °C. The sample of yellow efflorescence mainly consisted of Na-jarosite, the white efflorescence contained melanterite as the major mineral, and the blue efflorescence sample consisted of chalcanthite. These all contained a few impurities up to 5 %. The highest total dissolved solids (TDS) was found in the gas condensates from melanterite (59 mg/L), followed by chalcanthite (29 mg/L) and Na-jarosite (17 mg/L). It was determined that major and trace elements in the condensate can be trapped by water vapor and can migrate with the vapor phase during the desorption and dehydration of hydrous sulfates. X-ray diffractograms showed that Na-jarosite remained stable throughout the temperature range, whilst the separation of melanterite’s structural water occurred at 40 °C, and chalcanthite completely lost two water molecules at 50 °C. The gas condensates contained acetates and formates, which could be the fermentation products of bacterial communities. Some of the strains—Micrococcaceae sp., Bacillus sp., and Microbacteriaceae sp.—were cultivated.

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Rinner, M., M. Kind und E. U. Schlünder. „Separated solvent recovery from waste gas with cryo-condensation“. Separation and Purification Technology 29, Nr. 2 (November 2002): 95–104. http://dx.doi.org/10.1016/s1383-5866(02)00065-5.

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Sarwono, R., A. S. Putra und Y. Sudiyani. „PENGARUH KONDISI OPERASI TERHADAP KONVERSI LIMBAH TANDAN KOSONG KELAPA SAWIT (TKKS) PADA PROSES HIDROTERMAL“. Jurnal Kimia Terapan Indonesia 16, Nr. 2 (29.07.2016): 102–7. http://dx.doi.org/10.14203/jkti.v16i2.15.

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Selulosa merupakan polimer yang dihasilkan oleh makhluk hidup terutama tumbuh-tumbuhan dengan jumlah yang sangat besar, dan sebagian besar menjadi limbah, seperti limbah pertanian, kehutanan dan sampah kota.Limbah tersebut selama ini belum termanfaatkan dengan baik. Biasanya dipakai sebagai bahan bakar dengan nilai kalor yang rendah. Penguraian limbah TKKS akan didapatkan bermacam-macam zat kimia yang mempunyai nilai lebih seperti glukosa, asam levulinat, erithosa dan bahan bakar cair dan gas. Proses hidrotermal mampu menguraikan limbah TKKSmenjadi molekul kecil sebagai bahan bakar cair dan gas. Hidrotermal menggunakan media air yang berfungsi sebagaipelarut dan reaktan. Peruraian limbah TKKS dipengaruhi oleh kondisi operasi (tekanan, temperatur), jenis katalis, waktu reaksi, pengadukan dan rasio air dan padatan.Reaksi yang terjadi pada proses hidrotermal meliputi reaksi liquefaction, hydrolisis, dehydration, decarboxylation, condensation, aromatization dan polimerization. Hasil peruraian TKKS berupa padatanbiochar, zat terlarut dalam air, dan gas. Umpan TKKS 1,8% memberi konversi sekitar 63%, sedangkan pada konsentrasi katalis Na2CO3 0,5% memberi konversi yang cukup tinggi sekitar 75%, pada temperatur operasi 400 oC memberi konversi sekitar 73%, pada waktu reaksi 3 jam memberi konversi sekitar 70%, sedangkan tekanan awal gas N2 tidak banyak berpengaruh terhadap konversi TKKS.Kata kunci: TKKS, peruraian, konversi, hidrotermal, bahan terlarut air, gas.Cellulose is a polimer that produced in the living thing mainly from plantation with huge in amount, and also the majority from which is left as waste such as agricultural, forestry, food industries and municipal solid waste. Those wastes were not utilized properly yet, commonly used as a fuel with lower calorific value. Degradation of empty fruit bunches (EFB) of palm oil yielded many kind of valuable chemicals such as glucose, levulinic acid,erythrose, and liquid fuel and gas. EFB is lignocellulosic waste that can be degraded into smaller molecule that can be used as liquid and gas fuel fraction. Hidrothermal used water as a medium that used as solvent and reactant. EFB degradation is influenced by operation condition such as temperature, pressure, catalyst, reaction time, stirring, and ratio of liquid and solid. The hydrothermal process reaction involved such as liquefaction, hydrolysis, dehydration,decarboxylation, condensation, aromatization, and polymerization. EFB degradation resulted solid as biochar, organic water soluble and gas. EFB concentration of 1.8% resulted 63% conversion, catalyst Na2CO3 0.5% resulted 75%, temperature operation of 400 oC gave 73% conversion, reaction time 3 hours gave 70% conversion, initial pressure of N2 gas was not significantly influence to the EFB conversion.Key word: EFB, degradation, conversion, hydrothermal, water soluble, gas

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Poškas, Robertas, Arūnas Sirvydas, Vladislavas Kulkovas und Povilas Poškas. „An Experimental Investigation of Water Vapor Condensation from Biofuel Flue Gas in a Model of Condenser, (1) Base Case: Local Heat Transfer without Water Injection“. Processes 9, Nr. 5 (12.05.2021): 844. http://dx.doi.org/10.3390/pr9050844.

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Waste heat recovery from flue gas based on water vapor condensation is an important issue as the waste heat recovery significantly increases the efficiency of the thermal power units. General principles for designing of this type of heat exchangers are known rather well; however, investigations of the local characteristics necessary for the optimization of those heat exchangers are very limited. Investigations of water vapor condensation from biofuel flue gas in the model of a vertical condensing heat exchanger were performed without and with water injection into a calorimetric tube. During the base-case investigations, no water was injected into the calorimetric tube. The results showed that the humidity and the temperature of inlet flue gas have a significant effect on the local and average heat transfer. For some regimes, the initial part of the condensing heat exchanger was not effective in terms of heat transfer because there the flue gas was cooled by convection until its temperature reached the dew point temperature. The results also showed that, at higher Reynolds numbers, there was an increase in the length of the convection prevailing region. After that region, a sudden increase was observed in heat transfer due to water vapor condensation.

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Dissertationen zum Thema "Waste gas condensator"

Pinkas, Jan. „Kondenzační výměník za kotel na tuhá paliva 200 kW“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-443194.

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The point of this thesis is a waste gas condensator for 200kW woodchips burning boiler. In the first part of the thesis types of heat exchangers are introduced. Condensation is introduced. Further all necessary equations and relations for vertical shall and tube heat exchanger are specified. Following those relations waste gas condensator is designed. Situation under different input conditions is talked over in the end.

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Nakahata, Duane T. „Determination of relative formation rates of dibenzofurans via gas-phase condensation of phenols“. Diss., Georgia Institute of Technology, 2001. http://hdl.handle.net/1853/19155.

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Bücher zum Thema "Waste gas condensator"

Briggs, Jeffrey. Municipal landfill gas condensate. Cincinnati, OH: U.S. Environmental Protection Agency, Hazardous Waste Engineering Research Laboratory, 1988.

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Buchteile zum Thema "Waste gas condensator"

González, Nuria Garrido. „Condensation in Exhaust Gas Coolers“. In Energy and Thermal Management, Air Conditioning, Waste Heat Recovery, 97–105. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-47196-9_9.

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I. Abu-Eishah, Samir, Manal D.M. Raheem, Fatma A.S. Aljasmi, Fatima M.O. Alameri, Amna G.R. Alblooshi und Intesar F.R. Alnahdi. „A Zero-Waste Process for the Treatment of Spent Potliner (SPL) Waste“. In Current Topics in Recycling [Working Title]. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.99055.

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This work presents a deep analyses of an environmentally friendly process to recover all valuable minerals contained in the spent potliner (SPL) such as graphite carbon and aluminum fluoride (AlF3) and production of sodium sulfate (Na2SO4) and gypsum (CaSO4) when H2SO4 is used as the leaching agent. The level of emission of hazardous gases such as HCN (weak acid) and HF are minimized by direct scrubbing of the HCN in aqueous AgNO3 solution to produce a stable silver cyanide (AgCN) product. The HF can be recovered as a liquid by condensation and used within the process and/or in production of metal fluorides such as the highly-soluble potassium fluoride (KF); a main source of fluoride in industry. Almost pure CO2 gas is also recovered from the process gas streams.

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Konferenzberichte zum Thema "Waste gas condensator"

Soleimanikutanaei, Soheil, Esmaiil Ghasemisahebi, Cheng-Xian Lin und Dexin Wang. „Modelling of Shell and Tube Transport Membrane Condenser Heat Exchangers in Low Grade Waste Heat and Water Recovery Applications“. In ASME 2016 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/imece2016-67906.

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In this study Transport Membrane Condenser (TMC), a new waste heat and water recovery technology based on a nanoporous ceramic membrane vapor separation mechanism has been studied for waste heat and water recovery in power plant application. TMC is able to extract condensate pure water from the flue gas in the presence of other non-condensable gases (i.e. CO2, O2 and N2). The effects of mass flow rate of flue gas and water vapor content of flow on the heat transfer and condensation rate of a TMC shell and tube heat exchanger have been studied numerically. A single phase multi-component model is used to assess the capability of single stage TMC heat exchangers in terms of waste heat and water recovery at various inlet conditions. Numerical simulation has been performed using ANSYS-FLUENT software and the condensation rate model has been implemented applying User Define Function.

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Herrlander, Bo. „Novel Gas Cleaning With Integrated Energy Recovery“. In 19th Annual North American Waste-to-Energy Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/nawtec19-5415.

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High-energy recovery combined with low emissions to air and water was targeted when Jo¨nko¨ping Energi planned their new Waste to Energy plant at Torsvik in Sweden. The plant is compliant with the new EU Industry Directive and the Waste Frame Directive R-formula, which defines energy recovery levels for recycle of energy. In total about 160 000 tons of municipal (40%) and commercial waste (60%) is annually converted into usable energy. The average heat value is 11,7 MJ/kg. The energy produced is a combination of electricity (14 MWe) and heat (42–56 MWth, depending on electricity production). The heat is recovered both in a boiler and in a condenser. The flue gas condensing system is combined with a heat pump (10 MWth) to optimize the heat recovery rate. The plant is designed to fulfill the requirements set by the Swedish authorities, which are more stringent than the EU emission requirements. Some examples of the plant emissions to air guarantees: dust 5, HCl 5, SO2 20, HF1, Hg 0,03, Cd+Tl 0,05, other HM 0,5 all in mg/Nm3 and dioxin 0,05 ng/Nm3. The flue gas cleaning upstream of the condenser consists of a combination of a semi-dry system and a wet scrubber. The gas cleaning system operating range goes from 60 000 up to 127 000 Nm3/h depending on load and fuel heat value. The semi-dry system is carrying out the major part of the gas cleaning and is sufficient to comply with the air regulations. However, in order to minimize the treatment of the condensate from the condenser the wet scrubber is installed after the semi-dry system and upstream the condenser. The blow down from the scrubber is reused within the plant. Thus the polishing scrubber secures minimal treatment of the condensate to comply with the local stringent limits, particular chlorides, before release to the recipient lake Munksjo¨n. Emissions to water were 2010 nitrogen 1,7 mg/l, Cl <3,6 mg/l, As 0,66 μg/l, Cd <0,07 μg/l, Cr <6 μg/l, Cu 0,8 μg/l, Hg <0,4 μg/l, Ni <0,66 μg/l, Pb<1,2 μg/l, Tl<1,3 μg/l, Zn<7,2 μg/l and PCDD/PCDF 0,0088 ng/l. In the wet scrubber acid stage residual HCl and excess ammonia from the SNCR system are removed. The latter compound is important to capture in order to prevent eutrophication. The combination of a semidry and a wet system enables an optimization of the flue gas cleaning with regard to the different operating situations, taking into account seasonal demand variations as well as fuel alterations. The concept has demonstrated very low emissions combined with low consumption of lime. The possibility to optimize the flue gas cleaning performance is a prerequisite for minimal condensate treatment and optimal energy recovery. The paper will describe the system and the operating experiences.

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Ghasemisahebi, Esmaiil, Soheil Soleimanikutanaei, Cheng-Xian Lin und Dexin Wang. „Numerical Study of Transport Membrane Condenser Heat Exchangers“. In ASME 2016 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/imece2016-67882.

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In this study tube bundle Transport Membrane Condenser (TMC) has been studied numerically. The tube walls of TMC based heat exchangers are made of a nano-porous material and has a high membrane selectivity which is able to extract condensate pure water from the flue gas in the presence of other non-condensable gases (i.e. CO2, O2 and N2). Low grade waste heat and water recovery using ceramic membrane, based on separation mechanism, is a promising technology which helps to increase the efficiency of boilers and gas or coal combustors. The effects of inclination angles of tube bundle, different flue gas velocities, and the mass flow rate of water and gas flue have been studied numerically on heat transfer, pressure drop and condensation rates. To assess the capability of single stage TMC heat exchangers in terms of waste heat and water recovery at various inlet conditions, a single phase multi-component model is used. ANSYS-FLUENT is used to simulate the heat and mass transfer inside TMC heat exchangers. The condensation model and related source/sink terms are implemented in the computational setups using appropriate User Defined Functions (UDFs).

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Zinberg, M. B., T. A. Surgina, I. B. Ivanowskaya und D. A. Galjan. „Microbiological Waste Decomposition in Drilling Pit at the Oil-Gas-Condensate Fields“. In IADC/SPE Drilling Conference. Society of Petroleum Engineers, 1992. http://dx.doi.org/10.2118/23919-ms.

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Lin, Cheng-Xian Charlie, Dexin Wang und Ainan Bao. „Numerical Modeling and Simulation of Condensation Heat Transfer in a Bundle of Transport Membrane Tubes for Waste Heat and Water Recovery“. In ASME 2011 International Mechanical Engineering Congress and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/imece2011-63756.

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In this paper, a numerical study has been carried out to investigate the heat and mass transfer with condensation in a transport membrane tube bundle, which is used for recovering both heat and water from combustion flue gas. The tube wall is made of a specially designed porous material that is able to extract condensate liquid from the flue gas. The flue gas investigated consists of one condensable water vapor (H2O) and three noncondensable gases (CO2, O2, and N2). A simplified multi-species transport model was developed for the heat and mass transfer of flue gas. The condensation-evaporation process was simulated as a two-step chemical reaction. The RNG two-equation turbulence model was used for the turbulent flow. The numerical study was conducted within ranges of Reynolds number of 1.0×103–7×104 based on hydraulic diameter of flue gas channel, and 6.4×100–3.3×102 based on inner diameter of the water tube. Flue gas inlet temperature is within the range of 333.2–360.9 K, while the water inlet temperature is within the range of 293.9–316.7 K. Numerical results were compared with experimental data obtained in a parallel effort. It has been found that the developed multi-species transport model was able to predict the flue gas heat and mass transfer in the tube bundle with fairly good accuracy. The heat and mass depletion levels decrease with the increase of the flue gas Reynolds numbers. A new Nusselt number correlation was developed for flue gas convection in the tube bundle. Detailed results about temperature, mass fraction, enthalpy, and skin fraction factors are also presented and discussed.

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Halsband, Adam. „Generating Renewable Electric Power and Reducing Carbon Footprint by Converting Low-Grade Heat to Electrical Energy“. In 18th Annual North American Waste-to-Energy Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/nawtec18-3517.

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Recent technological developments in expander design and next generation refrigerants have made implementation of the Organic Rankine Cycle (ORC) a viable strategy for converting low grade heat into valuable amounts of recoverable, green electrical power. This green process reduces the typical plants carbon footprint. A brief review of the technical drivers of a typical ORC design will be followed with examples of waste heat energy sources in a typical 50 MMGPY biofuels plant. A Case History will be presented for potential energy sources to drive the process that will include 1.) 15 psig steam / condensate return 2.) Boiler stack gas 3.) Dryer stack gas emissions with expected converted electrical energy yields. Impact of energy savings and reducing total plant carbon emissions will also be addressed.

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Zhou, Xian, Hua Liu, Lin Fu und Shigang Zhang. „Experimental Study of Natural Gas Combustion Flue Gas Waste Heat Recovery System Based on Direct Contact Heat Transfer and Absorption Heat Pump“. In ASME 2013 7th International Conference on Energy Sustainability collocated with the ASME 2013 Heat Transfer Summer Conference and the ASME 2013 11th International Conference on Fuel Cell Science, Engineering and Technology. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/es2013-18316.

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Condensing boiler for flue gas waste heat recovery is widely used in industries. In order to gain a portion of the sensible heat and latent heat of the vapor in the flue gas, the flue gas is cooled by return water of district heating through a condensation heat exchanger which is located at the end of flue. At low ambient air temperature, some boilers utilize the air pre-heater, which makes air be heated before entering the boiler, and also recovers part of the waste heat of flue gas. However, there are some disadvantages for these technologies. For the former one, the low temperature of the return water is required while the utilization of flue gas heat for the latter one is very limited. A new flue gas condensing heat recovery system is developed, in which direct contact heat exchanger and absorption heat pump are integrated with the gas boiler to recover condensing heat, even the temperature of the return water is so low that the latent heat of vapor in the flue gas could not be recovered directly by the general condensing technologies. Direct contact condensation occurs when vapor in the flue gas contacts and condenses on cold liquid directly. Due to the absence of a solid boundary between the phases, transport processes at the phase interface are much more efficient and quite different from condensation phenomena on a solid surface. Additionally, the surface heat exchanger tends to be more bulky and expensive. In this study, an experimental platform of the new system is built, and a variety of experimental conditions are carried out. Through the analysis of the experimental data and operational state, the total thermal efficiency of the platform will be increased 3.9%, and the system is reliable enough to be popularized.

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Soleimanikutanaei, Soheil, Cheng-Xian Lin und Dexin Wang. „Numerical Modeling of Industrial Scale Transport Membrane Condenser Based Heat Exchangers for Flue Gas Waste Heat and Water Recovery“. In ASME 2015 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/imece2015-52324.

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In this paper, the effects of different working conditions on the performance of Transport Membrane Condenser (TMC) based heat exchangers are studied numerically. The effects of non-condensable gases on the condensation rate along with the number and distances of the TMC tubes in longitudinal and transversal directions were investigated. The numerical simulations have been conducted using the commercial software Ansys Fluent 14.5 and the condensation and heat and mass transfer are implemented using User Defined Functions (UDFs) in the numerical setup. The RNG two-equation turbulence model is used to handle heat, mass and momentum transfer across the TMC bundle tubes. The results are depicted in terms of volume fraction of water vapor and averaged outlet temperature of cooling water and flue gas. The results revealed that increase of the number of TMC tubes, when the inlet flow rate is constant, increases both the condensing surface area and average surface temperature which have opposite effects on the condensation rate, hence both of these parameters should be considered in industrial applications.

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Skop, Helen, James Pezzuto, Valeriy G. Oleynikov-White, John F. Cavallo und Robert Fesjian. „Heat and Mass Transfer in Double-Filmwise Heat Exchanger for Industrial Food Processing Applications“. In ASME 2011 International Mechanical Engineering Congress and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/imece2011-65616.

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The baking industry is considered as one of the major energy consuming food industries in North America. More than 40% of bakery fuel consumption is used to evaporate water in the processes [1]. In addition to the baking process’ vapor the oven stack gas contains water vapor from combustion products. Overall the content of water vapor in the typical oven stack gas is about 20% by volume. Most bakeries waste this vapor and its latent heat. Bakeries’ ovens have wide diversity in power and design. Off-the-shelve heat exchangers are not considered as cost effective equipment for stack gas cooling below gas’ dew point temperature. At typical oven stack gas composition water vapor condensation begins to condense at about 72° C. Not using the latent heat of stack water vapor and the heat from gas cooling from dew point temperature to ambient temperature results in low effectiveness of waste heat recovery. Mainly the effect from the recovery of stack gas cooling prior to condensation is considered as non cost effective and waste heat recovery is neglected.

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Kalina, A. I., und H. M. Leibowitz. „The Design of a 3MW Kalina Cycle Experimental Plant“. In ASME 1988 International Gas Turbine and Aeroengine Congress and Exposition. American Society of Mechanical Engineers, 1988. http://dx.doi.org/10.1115/88-gt-140.

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An experimental project is now underway to demonstrate the advantages of the Kalina cycle technology. A Kalina Cycle Experimental Plant (KCEP) will be built as a 3 MW bottoming cycle using the waste heat from a facility within the Energy Technology Engineering Center (ETEC), a U.S. Department of Energy laboratory located in Canoga Park, California. The design of the experimental plant is presented, including the process flow diagram, heat and mass balance, and specifications for the plant’s major equipment; the waste heat boiler, turbine generator and distillation/condensation subsystem. Using a mixture of ammonia and water at a mass ratio of 70/30, and a new condenser design based on absorption principles, the Kalina cycle plant will attempt to demonstrate its superiority over the Rankine steam cycle. Based on single pressure designs at comparable peak cycle temperatures, the Kalina cycle’s output should exceed that of the steam cycle by 25 percent.

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Berichte der Organisationen zum Thema "Waste gas condensator"

Adamson, Duane J., Charles A. Nash, Daniel J. McCabe, Charles L. Crawford und William R. Wilmarth. Laboratory Evaporation Testing Of Hanford Waste Treatment Plant Low Activity Waste Off-Gas Condensate Simulant. Office of Scientific and Technical Information (OSTI), Januar 2014. http://dx.doi.org/10.2172/1117838.

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Nash, C., K. Taylor-Pashow und D. McCabe. LABORATORY PREPARATION OF HANFORD WASTE TREATMENT PLANT DIRECT FEED LOW ACTIVITY WASTE OFF-GAS CONDENSATE SIMULANT. Office of Scientific and Technical Information (OSTI), Dezember 2014. http://dx.doi.org/10.2172/1165537.

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Taylor-Pashow, Kathryn M., Charles A. Nash, Charles L. Crawford, Daniel J. McCabe und William R. Wilmarth. Laboratory Scoping Tests Of Decontamination Of Hanford Waste Treatment Plant Low Activity Waste Off-Gas Condensate Simulant. Office of Scientific and Technical Information (OSTI), Januar 2014. http://dx.doi.org/10.2172/1116991.

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Taylor-Pashow, Kathryn M. L., Michael Poirier und Daniel J. McCabe. Bench scale experiments for the remediation of Hanford Waste Treatment Plant low activity waste melter off-gas condensate. Office of Scientific and Technical Information (OSTI), August 2017. http://dx.doi.org/10.2172/1377029.

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Taylor-Pashow, K., C. Nash und D. McCabe. LABORATORY OPTIMIZATION TESTS OF TECHNETIUM DECONTAMINATION OF HANFORD WASTE TREATMENT PLANT LOW ACTIVITY WASTE OFF-GAS CONDENSATE SIMULANT. Office of Scientific and Technical Information (OSTI), September 2014. http://dx.doi.org/10.2172/1160322.

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Taylor-Pashow, Kathryn M. L., und Daniel J. McCabe. Laboratory optimization tests of technetium decontamination of Hanford Waste Treatment Plant low activity waste melter off-gas condensate simulant. Office of Scientific and Technical Information (OSTI), November 2015. http://dx.doi.org/10.2172/1228059.

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Poirier, M. R., K. M. L. Taylor-Pashow, W. H. Woodham und D. J. McCabe. Solid-liquid Separation Testing for the Remediation of Hanford Waste Treatment Plant Low Activity Waste Melter Off-Gas Condensate. Office of Scientific and Technical Information (OSTI), Mai 2019. http://dx.doi.org/10.2172/1519113.

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Taylor-Pashow, K., und D. McCabe. Laboratory Optimization Tests of Technetium Decontamination of Hanford Waste Treatment Plant Direct Feed Low Activity Waste Melter Off-Gas Condensate Simulant. Office of Scientific and Technical Information (OSTI), Dezember 2015. http://dx.doi.org/10.2172/1233730.

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Taylor-Pashow, Kathryn M. L., Daniel J. McCabe und John M. Pareizs. Investigation of variable compositions on the removal of technetium from Hanford Waste Treatment Plant low activity waste melter off-gas condensate simulant. Office of Scientific and Technical Information (OSTI), März 2017. http://dx.doi.org/10.2172/1351951.

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Taylor-Pashow, K., C. Nash und D. McCabe. Laboratory Optimization Tests of Decontamination of Cs, Sr, and Actinides from Hanford Waste Treatment Plant Low Activity Waste Off-Gas Condensate Simulant. Office of Scientific and Technical Information (OSTI), Januar 2015. http://dx.doi.org/10.2172/1345815.

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