Relevant bibliographies by topics / Diesel hydrotreating unit

Academic literature on the topic 'Diesel hydrotreating unit'

Author: Grafiati
Published: 6 September 2023

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Journal articles on the topic "Diesel hydrotreating unit"

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Samoilov, N. A. "Mathematical Modeling of Diesel Fuel Hydrotreating." Oil and Gas Technologies 130, no. 5 (2020): 18–25. http://dx.doi.org/10.32935/1815-2600-2020-130-5-18-25.

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The principles of mathematical modeling of Hydrotreating diesel fuel in the representation of raw materials in the form of a set of narrow fractions in which the total content of various organosulphuric components is considered as a pseudocomponent are considered. As a result of the analysis of schemes of reactor blocks of Hydrotreating plants the most perspective two-reactor systems characterized by separate desulfurization of streams are revealed. It is shown that the preliminary fractionation of Hydrotreating raw materials into light and heavy fractions with the choice of the optimal boundary of fraction division can minimize the loading of the catalyst into the reactor unit. An algorithm for solving this problem, including experimental and computational fragments, is presented.
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Tian, Ruijie, Weibin Xu, Yongchao Li, Jun Tian, and Le Wu. "Energy Consumption Analysis of a Diesel Hydrotreating Unit Using an Aspen Simulation." Processes 10, no. 10 (October 11, 2022): 2055. http://dx.doi.org/10.3390/pr10102055.

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The petrochemical industry is traditionally a high energy consumption industry, thus energy saving in this industry is of great significance in terms of trying to achieve the national goal of “carbon-peak and carbon neutrality” in China. Diesel is one of the main products of petrochemical enterprises. The energy consumption of a diesel hydrotreating (HDT) unit is relatively high due to the high reaction temperature and pressure of HDT reactors. In order to further explore the energy consumption of diesel HDT units under different operating conditions, this paper establishes a full-process simulation based on the kinetics of hydrodesulfurization, hydrodenitrogenation, and aromatics saturation, in Aspen Plus to discuss the effect of different operating conditions on the electricity, steam, and fuel gas consumptions. The results show that with the increase of reaction temperature or reaction pressure, the sulfur content in diesel oil decreases, but the consumption of related utilities and comprehensive energy consumption increases. In addition, this paper also analyzes the energy consumption changes under the operating condition boundaries when the diesel quality is unchanged. When the reaction pressure is 8 MPa and the reaction temperature is 317.5 °C, the comprehensive energy consumption is 5% lower than the energy consumption with the reaction pressure of 6 MPa and the temperature of 320 °C. Therefore, on the premise of satisfying the diesel product quality, the comprehensive energy consumption of the diesel HDT unit can be reduced by increasing the reaction pressure and decreasing the reaction temperature.
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Korovnikova, Natalia, Volodymyr Oliinik, and Oleksandr Dubyna. "Research of Pyrophoric Compounds in Order to Reduce their Hazard." Materials Science Forum 1038 (July 13, 2021): 454–59. http://dx.doi.org/10.4028/www.scientific.net/msf.1038.454.

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The constantly growing content of sulfur compounds and the increased water content in the extracted oil enhances the aggressiveness of the environments in which the technological equipment of oil depots and pipelines operates, resulting in a higher number of emergencies in the equipment of oil refineries. Thus, one of the most urgent problems is the corrosion damage to oil storage equipment and the associated consequences of flammable pyrophoric compounds formation. Finely dispersed flammable sulfides with organic impurities are formed in the equipment of the diesel fuel distillate hydrotreating unit thus accumulating on the bottoms and walls of tanks and reservoirs. This negatively affects the material balance of the hydrotreating process and increases fire and explosion hazards of the whole hydrotreating process at the refinery. For the first time, the elemental composition of pyrophoric deposits formed while storing petroleum products in the LCh-24-2000 unit was experimentally investigated. These sulfides are a flammable component of the equipment in the hydrotreating process, where diesel fuel distillates rotate. The obtained results of the test study as for the prevention of pyrophores spontaneous combustion indicate that hydrogen peroxide solutions have the highest efficiency. The practical significance of the results is in the use of experimental studies on the spontaneous combustion of pyrophoric samples in the development of the equipment cleaning terms during the hydrotreating process from pyrophoric deposits at the refinery. The experimental results of testing the ability of chemicals to prevent pyrophores spontaneous combustion can be used to reduce the risk of spontaneous combustion of pyrophoric compounds.
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TUKTIN, B. T., A. S. TENIZBAEVA, G. T. SEIDILDA, and D. E. SHOGANBEK. "HYDROTREATMENT OF DIESEL FRACTIONS ON A MODIFIED ALUMINUM-NICKEL-MOLYBDENUM CATALYST KGO-12." Neft i gaz 1, no. 121 (April 15, 2020): 86–94. http://dx.doi.org/10.37878/2708-0080/2021-1.07.

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The paper presents the results of the study of hydrotreatment of hexane, decane and diesel oil fractions on a new aluminum oxide zeolite-containing catalyst KGO – 12, modified with metals with variable valence, phosphorus and lanthanum additives. The hydrotreatment process was studied in a high-pressure flow unit with a stationary catalyst bed at temperatures of 320 – 400° C, a pressure of 4.0 MPa, and a volumetric feed rate of 2 h-1. After hydrotreating the diesel fraction of oil on the KGO – 12 catalyst at 400° C, the sulfur content in the catalysate decreases from 0.141 to 0.0092%, and the solidification temperature decreases from minus 27 to minus 57° C. The study of the process of hydrotreatment of the n-alcanes diesel fraction on the KGO – 12 catalyst showed that hydrotreatment, hydroisomerization and hydrocracking reactions occur simultaneously. It is established that the developed KGO – 12 catalyst has a high activity in the process of hydrotreating the diesel fraction of oil and makes it possible to obtain low-setting low-sulfur diesel fuel.
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Samoilov, Naum. "The specifics of mathematical modeling complex multicomponent chemical processes." Industrial processes and technologies 1, no. 1 (2021): 37–52. http://dx.doi.org/10.37816/2713-0789-2021-1-1-37-52.

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A critical analysis of the problem of identifying raw materials for hydrotreating diesel fuel by organosulphuric components and quantifying the value of the rate constant of the hydrodesulphurization reaction is presented. It is proposed to describe the raw material as a set of narrow fractions, in each of which the content of various organosulphuric components is considered as a single pseudo-component. The prospects of separate hydrotreatment of diesel fuel pre - fractionated into wide easily and hardly hydrogenated fractions are confirmed, which allows reducing the loading of the catalyst into the reaction unit of the plant by 1.4-1.7 times compared to the traditional process scheme.. It is proposed to use the concept of kinetic coefficient for mathematical modeling of the hydrotreating process instead of the incorrect reaction rate constant in this case. The dependence of the gross conversion rate constant of the raw material on the time of fixing the depth of its hydrodesulfurization is proved by the example of modeling the hydrotreatment of diesel fuel for a number of raw material variants.
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Serdyukova, E. Yu, Yu V. Kozhevnikova, D. A. Nikolaeva, and A. A. Perminova. "Exploring the Possibility of Engagement in the Raw Materials of Hydrotreating the Diesel Fraction of Biocomponents." Chemistry and Technology of Fuels and Oils 637, no. 3 (2023): 3–7. http://dx.doi.org/10.32935/0023-1169-2023-637-3-3-7.

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The article presents the results of calculating the optimal ratio of the diesel fraction and the 180-240 °C fraction of the biocomponent obtained during slow pyrolysis of plant waste. Comparative tables are given on the technological mode of operationof the hydrotreating reactor unit and on the quality of the products obtained with and without the involvement of the biocomponent.
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Tarusov, D. V., V. K. Slakaev, G. S. Mutovkin, V. E. Znaemov, A. N. Karpov, N. Y. Bashkirtseva, A. V. Tarasov, and D. V. Borisanov. "Changing the properties of narrow fractions in the process of hydrotreating light coking gas oil." World of petroleum products 04 (2022): 36–41. http://dx.doi.org/10.32758/2782-3040-2022-0-4-36-41.

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Currently, the main products of the delayed coking plant in the Russian Federation (after hydrotreating) are gasoline and diesel fuel summer. The paper presents the results of a study of the properties of narrow fractions of coking gas oil and hydrotreated coking gas oil, which showed the prospect of organizing production based on the coking process of more marginal aviation kerosene and winter diesel fuel. The separation of products into narrow 20 degree fractions was carried out on an automatic distillation unit AUTOMAXX 9100. The dependences of nitrogen, sulfur, aromatics, density, and low-temperature properties on the boiling temperatures of narrow fractions of the composition of light coking gas oil and hydrotreated light coking gas oil have been studied. Analysis of the properties of narrow fractions of hydrotreated light coking gas oil has shown the theoretical possibility of obtaining fractions of jet fuel and winter diesel fuel on its basis, instead of summer diesel fuel.
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Bandyopadhyay, Rajarshi, Ole Frej Alkilde, and Sreedevi Upadhyayula. "Applying pinch and exergy analysis for energy efficient design of diesel hydrotreating unit." Journal of Cleaner Production 232 (September 2019): 337–49. http://dx.doi.org/10.1016/j.jclepro.2019.05.277.

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Murali, C., R. K. Voolapalli, N. Ravichander, D. T. Gokak, and N. V. Choudary. "Trickle bed reactor model to simulate the performance of commercial diesel hydrotreating unit." Fuel 86, no. 7-8 (May 2007): 1176–84. http://dx.doi.org/10.1016/j.fuel.2006.09.019.

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Demin, A. M., A. P. Naumenko, O. A. Reutova, and A. I. Odinets. "Economic evaluation of use of heat exchange equipment diagnostic software at diesel hydrotreating unit." Journal of Physics: Conference Series 1260 (August 2019): 032009. http://dx.doi.org/10.1088/1742-6596/1260/3/032009.

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Dissertations / Theses on the topic "Diesel hydrotreating unit"

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Bandyopadhyay, Rajarshi. "Comprehensive study on industrial diesel hydrotreating unit : new insights on design and optimization." Thesis, IIT Delhi, 2019. http://eprint.iitd.ac.in:80//handle/2074/8053.

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Strutzel, Flávio Augusto Martins. "Controle IHMPC de um processo industrial de hidrotratamento de diesel." Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/3/3137/tde-24062014-102335/.

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Neste trabalho é abordado o problema de controle e de otimização de unidades industriais de hidrotratamento de diesel (UHDT) por controladores MPC (Model Predictive Control). É apresentado um breve histórico dos controladores MPC convencionais e de horizonte infinito (IHMPC), bem como uma breve descrição do processo de Hidrotratamento de Diesel e das particularidades da aplicação do controle de processos a este tipo de planta industrial. Em seguida foi gerado, passo a passo, um algoritmo de controle que sumarizou e agregou características de vários controladores MPC disponíveis na literatura aberta, em especial os que foram desenvolvidos ao longo dos últimos anos pelo laboratório de simulação e controle da USP (LSCP), a fim de se obter um algoritmo adequado para a solução do problema de controle abordado. Em ambiente computacional de simulação, o algoritmo resultante possibilitou controlar e otimizar simultaneamente processos contínuos, sendo capaz de estabilizar a planta industrial de forma robusta e, ao mesmo tempo, aumentar a lucratividade de sua operação. Para tanto, foi desenvolvida uma função objetivo econômica que aumentou a conversão da carga bruta em produtos hidrotratados e minimizou o consumo de insumos, sendo que essa correlação foi agregada ao algoritmo de controle. As simulações permitiram que as estratégias de controle previamente discutidas pudessem ser testadas e seus resultados apresentados e debatidos.
This work addresses the control and optimization problem of industrial diesel hydrotreating units (UHDT) by MPC controllers (Model Predictive Control). It is presented a brief historical of conventional MPC controllers and infinite horizon controllers (IHMPC), as well as a brief description of the Diesel Hydrotreating process and the particulars of the application of process control for this type of industrial plant. It was then generated, step by step, one algorithm that summarized and aggregated control characteristics of various MPC controllers available in the open literature, in particular those that have been developed over the past few years by USPs laboratory of simulation and control of (LSCP), in order to obtain an algorithm suitable for solving the addressed control problem. In a computational simulation environment, the resulting algorithm allowed to simultaneously control and optimize continuous processes, being able to robustly stabilize the industrial plant and at the same time increase the profitability of its operation. For this purpose, an \"objective function\" was developed which increased the economic conversion of crude feed to hydrotreated product and minimized the consumption of raw materials, and this correlation was added to the control algorithm. The simulations allowed that the previously discussed control strategies could be tested and the results presented and discussed.
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Conference papers on the topic "Diesel hydrotreating unit"

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Studley, Bruce C., and Victor Fuentes. "Initial Operating Experiences and Overall Enhancements at the Chilean Coke Fired Petropower Cogeneration Facility." In 2002 International Joint Power Generation Conference. ASMEDC, 2002. http://dx.doi.org/10.1115/ijpgc2002-26182.

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On November 1, 1998 the Petropower Energia Limitada Project, located adjacent to Petrox’s 84,000 barrel per day (bpd) refinery in Talcahuano, Chile, entered into Commercial Operations. In addition to being the first public/private industrial partnership in Chile, it also was the first to combine petroleum coking technology with cogeneration technology in a single project financing. The project consists of a Delayed Coker Facility, which includes a 12,000 bpd Delayed Coker Unit and a 7,000 bpd Hydrotreating Unit, and a 74 MW (nominal, gross) Cogeneration Facility. The coke produced fuels a Foster Wheeler Circulating Fluidized Bed Boiler (CFB), and the energy produced provides electric power for the Petrox Refinery, the Delayed Coker Facility, and third parties, and high pressure steam for the refinery. The Cogeneration Facility, which consumes 24.8 Tonnes Per Hour of green coke, produces high-pressure steam, demineralized water and electricity for export to the refinery. The cogeneration unit also exports electricity, boiler feedwater and plant air to the Delayed Coker Facility. This leaves approximately 42 MW which is being exported to local third parties and the national grid. Environmentally, the overall project has resulted in a decrease in sulfur dioxide and particulate emissions from the refinery because of emission controls in the CFB, and elimination of burning fuel oil in the old utility system. Overall, the Delayed Coker Facility has permitted Petrox to refine heavier, less costly crudes, and the Hydrotreater Unit produces cleaner gasoline and diesel products. Petrox obtained these benefits without the expenditure of capital on the project, other than a small equity investment. The Cogeneration Facility has, and will continue to provide a long term, environmentally friendly solution to disposal of the high sulfur content coke produced by the coker, and maximizes its value as a high BTU (kilojoule - kJ) fuel for the Cogeneration Facility. The Cogeneration Facility has supplied all the refinery’s utility needs reliably and consistent with its expansion plans. After briefly describing the overall project, this paper places emphasis on the cogeneration plant with a focus on the operational experiences, including fouling, and the reliability improvements undertaken during the plant’s last three years of commercial operation. In addition, O&M costs and an overview of project economics are discussed.
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