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Development Of Kinetics Mathematical Model And Optimization Of Fischer Tropsch Synthesis On Cobalt Based Catalyst
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Book Synopsis Development of Kinetics, Mathematical Model and Optimization of Fischer-Tropsch Synthesis on Cobalt-based Catalyst by : Nima Moazami
Download or read book Development of Kinetics, Mathematical Model and Optimization of Fischer-Tropsch Synthesis on Cobalt-based Catalyst written by Nima Moazami and published by . This book was released on 2015 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Modeling Fischer-Tropsch Product Distribution of a Cobalt Based Catalyst in Different Reaction Media by : Shaik Afzal
Download or read book Modeling Fischer-Tropsch Product Distribution of a Cobalt Based Catalyst in Different Reaction Media written by Shaik Afzal and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This work discusses the modeling of hydrocarbon product distribution up to carbon number 15 of a cobalt-based catalyst under Fischer-Tropsch (FT) synthesis conditions. The proposed kinetics of the reaction has been adapted from Todic et al. In the first part of the study, a Genetic Algorithm code in MATLAB® was developed to generate parameters of the 19-parameter kinetic model. In the next part of the work, an experimental campaign was conducted in a high pressure FT reactor unit to verify the model predictability of the cobalt catalyst product profile in gas phase. The results in terms of conversion and hydrocarbon product formations were reported. Less than 12% CO conversion was maintained in all 7 runs in order to ensure that the reaction was occurring in the kinetic regime. After the peak identification and analysis, the experimental data was input into the developed MATLAB® code to estimate model parameters. This model estimates the FT product distribution in the gas phase media with a mean absolute relative residual (MARR) of 48.44%. This is higher than that obtained by Todic et al. The higher error is attributed to the fewer number of experimental runs carried out and due to some assumptions made in product characterization. This work lays the foundation for future work towards investigations of FT product distribution in the presence of a supercritical solvent to bring the reaction media to near critical and supercritical phase conditions. The electronic version of this dissertation is accessible from http://hdl.handle.net/1969.1/155409
Book Synopsis Fischer-Tropsch Synthesis, Catalysts, and Catalysis by : Burtron H. Davis
Download or read book Fischer-Tropsch Synthesis, Catalysts, and Catalysis written by Burtron H. Davis and published by CRC Press. This book was released on 2016-04-06 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is based on a symposium held during the 248th American Chemical Society meeting that focused on use of the Fischer-Tropsch process in producing synthetic fuels. Its contents reflect the four dominant subjects of the meeting: catalyst preparation and activation, catalyst activity and reaction mechanisms, catalyst characterization and related reactions, and topics concerning commercializing the Fischer-Tropsch process. It covers recent developments related to renewable resources and green energy and provides a glimpse of the commercial potential of the Fischer-Tropsch process in synthetic fuel production.
Book Synopsis Iron and Cobalt Catalysts by : Wilson D. Shafer
Download or read book Iron and Cobalt Catalysts written by Wilson D. Shafer and published by MDPI. This book was released on 2020-06-23 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the turn of the last century when the field of catalysis was born, iron and cobalt have been key players in numerous catalysis processes. These metals, due to their ability to activate CO and CH, haev a major economic impact worldwide. Several industrial processes and synthetic routes use these metals: biomass-to-liquids (BTL), coal-to-liquids (CTL), natural gas-to-liquids (GTL), water-gas-shift, alcohol synthesis, alcohol steam reforming, polymerization processes, cross-coupling reactions, and photocatalyst activated reactions. A vast number of materials are produced from these processes, including oil, lubricants, waxes, diesel and jet fuels, hydrogen (e.g., fuel cell applications), gasoline, rubbers, plastics, alcohols, pharmaceuticals, agrochemicals, feed-stock chemicals, and other alternative materials. However, given the true complexities of the variables involved in these processes, many key mechanistic issues are still not fully defined or understood. This Special Issue of Catalysis will be a collaborative effort to combine current catalysis research on these metals from experimental and theoretical perspectives on both heterogeneous and homogeneous catalysts. We welcome contributions from the catalysis community on catalyst characterization, kinetics, reaction mechanism, reactor development, theoretical modeling, and surface science.
Book Synopsis Mathematical Modeling of Complex Reaction Systems in the Oil and Gas Industry by : Jorge Ancheyta
Download or read book Mathematical Modeling of Complex Reaction Systems in the Oil and Gas Industry written by Jorge Ancheyta and published by John Wiley & Sons. This book was released on 2024-09-30 with total page 485 pages. Available in PDF, EPUB and Kindle. Book excerpt: Master the fundamentals of reaction systems modeling for the age of decarbonization Reactor design is one of the most important parts of the oil and gas industry, with reactor processes and the accompanying technologies constantly evolving to meet industry needs. A crucial component of effective reactor design is modelling complex reaction systems, which can help predict commercial performance, shape safety procedures, and more. At a time when decarbonization and clean energy transition are among the fundamental global technological challenges, it has never been more important for engineers to grasp the cutting edge of reaction system modelling. Mathematical Modeling of Complex Reaction Systems in the Oil and Gas Industry provides a systematic introduction to this timely subject. Each chapter provides a step-by-step description of the kinetic and reactor models for a particular kind of process and its accompanying systems. Backed by voluminous experimental data and incorporating extensive simulation results, the book constitutes an indispensable contribution to the global search for clean energy solutions. Mathematical Modeling of Complex Reaction Systems in the Oil and Gas Industry readers will also find: All the required tools for developing new reactor models for different reaction scales Detailed discussion of topics including hydrocracking of heavy oils, catalyst deactivation, oxidative regeneration of catalysts, and many more Extensive treatment of both steady-state and dynamic simulations Mathematical Modeling of Complex Reaction Systems in the Oil and Gas Industry is ideal for chemical and process engineers, computational chemists and modelers, catalysis researchers, and any other researchers or professionals in petrochemical engineering and the oil and gas industry.
Book Synopsis Deactivation Modeling of Cobalt Fischer-Tropsch Catalysts in Different Reactor Configurations by : Majid Sadeqzadeh
Download or read book Deactivation Modeling of Cobalt Fischer-Tropsch Catalysts in Different Reactor Configurations written by Majid Sadeqzadeh and published by . This book was released on 2012 with total page 211 pages. Available in PDF, EPUB and Kindle. Book excerpt: Catalyst deactivation remains a major challenge in Fischer-Tropsch synthesis; as it reduces the catalyst lifetime as well as its productivity. Deactivation can be attributed to certain mechanisms according to the literature. Sintering is proposed in this work to be responsible for the initial deactivation whereas coking is suggested to be the main cause of long-term deactivation. The final objective of this thesis is to develop the mechanistic models which could predict the extent of catalyst deactivation with time. In the first step, the change in the catalyst physico-chemical properties with time on stream is considered. A three-step sintering model is proposed which involves the effect of water acceleration through the formation of surface cobalt oxide layer. This mechanism allows correlating the crystallites growth with certain operating conditions especially the H2O/H2 molar ratio inside the reactor. We have also developed a mechanism for the active site poisoning by carbon deposition for the long-term deactivation. This mechanism helps to evaluate the change in the active sites coverage with time as well the CO, H2, and H2O mole fractions. The two microscopic models are then integrated in the reactor models in order to correlate the change in the catalytic activity with the catalyst properties. We have developed the models dedicated to fixed bed and slurry reactors. The effect of operating conditions on the crystallite size, active sites fraction, and conversion is considered by the simulations. The models are then employed in the laboratory scale reactors to fit the experimental data and to optimize the deactivation constants.
Book Synopsis Advances in Fischer-Tropsch Synthesis, Catalysts, and Catalysis by : B. H. Davis
Download or read book Advances in Fischer-Tropsch Synthesis, Catalysts, and Catalysis written by B. H. Davis and published by CRC Press. This book was released on 2009-11-10 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rising oil costs have stimulated significant interest in the Fischer-Tropsch synthesis (FTS) as a method for producing a synthetic petroleum substitute. Drawn from the proceedings at a symposium held during the 236th meeting of the American Chemical Society in Philadelphia in August 2008, Advances in Fischer-Tropsch Synthesis, Catalysts, and Cataly
Book Synopsis A Comprehensive Study of Kinetics Mechanism of Fischer-Tropsch Synthesis Over Cobalt-based Catalyst by :
Download or read book A Comprehensive Study of Kinetics Mechanism of Fischer-Tropsch Synthesis Over Cobalt-based Catalyst written by and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fischer-Tropsch Technology by : André Steynberg
Download or read book Fischer-Tropsch Technology written by André Steynberg and published by Elsevier. This book was released on 2004-10-30 with total page 722 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fischer-Tropsch Technology is a unique book for its state-of-the-art approach to Fischer Tropsch (FT) technology. This book provides an explanation of the basic principles and terminology that are required to understand the application of FT technology. It also contains comprehensive references to patents and previous publications. As the first publication to focus on theory and application, it is a contemporary reference source for students studying chemistry and chemical engineering. Researchers and engineers active in the development of FT technology will also find this book an invaluable source of information. * Is the first publication to cover the theory and application for modern Fischer Tropsch technology * Contains comprehensive knowledge on all aspects relevant to the application of Fischer Tropsch technology* No other publication looks at past, present and future applications
Book Synopsis Kinetics and Selectivity in Fischer-Tropsch Synthesis on a Cobalt Catalyst by : Bent Sarup
Download or read book Kinetics and Selectivity in Fischer-Tropsch Synthesis on a Cobalt Catalyst written by Bent Sarup and published by . This book was released on 1986 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Microkinetic Model of Fischer-Tropsch Synthesis on Iron Catalysts by : Uchenna Prince Paul
Download or read book Microkinetic Model of Fischer-Tropsch Synthesis on Iron Catalysts written by Uchenna Prince Paul and published by . This book was released on 2008 with total page 247 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fischer-Tropsch synthesis (FTS), developed in the early 1900[alpha]s, is defined as the catalytic conversion of H2 and CO to hydrocarbons and oxygenates with the production of H2O and CO2. Accurate microkinetic modeling can in principle provide insights into catalyst design and the role of promoters. This work focused on gaining an understanding of the chemistry of the kinetically relevant steps in FTS on Fe catalyst and developing a microkinetic model that describes FTS reaction kinetics.
Book Synopsis Synthetic Liquid Fuels from Hydrogenation of Carbon Monoxide by : William Jefferson Boone
Download or read book Synthetic Liquid Fuels from Hydrogenation of Carbon Monoxide written by William Jefferson Boone and published by . This book was released on 1958 with total page 850 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Bench-scale Studies of the Fischer-Tropsch Synthesis Over Iron, Nickel, and Nickel Cobalt Catalysts (Japan) by : Shiro Watanabe
Download or read book Bench-scale Studies of the Fischer-Tropsch Synthesis Over Iron, Nickel, and Nickel Cobalt Catalysts (Japan) written by Shiro Watanabe and published by . This book was released on 1951 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Technology Development for Iron and Cobalt Fischer-Tropsch Catalysts by :
Download or read book Technology Development for Iron and Cobalt Fischer-Tropsch Catalysts written by and published by . This book was released on 1999 with total page 83 pages. Available in PDF, EPUB and Kindle. Book excerpt: The impact of deuterium on the Fischer-Tropsch (FT) synthesis was studied with a precipitated iron catalyst in the slurry phase. Deuterium has been used by several research groups to better understand the mechanism of CO hydrogenation. Inverse (k{sub H}/k{sub D} 1), normal (k{sub H}/k{sub D} 1) and no isotope effect (k{sub H}/k{sub D} = 1) have been reported. The conflicting results are thought to arise because rate of reaction is a combination of kinetic and equilibrium factors. In summary, the presence of boron produced only minor changes on the properties of the cobalt catalyst. In earlier studies, it was shown that the presence of boron made the catalyst less susceptible to poisoning by sulfur. Steady-state supercritical Fischer-Tropsch synthesis was studied in the work using a fixed-bed reactor and an unpromoted Co/SiO2 catalyst. This serves as the baseline for promoted catalyst studies. A pentane-hexane mixture was used as the supercritical solvent. Overall reactor pressure, syngas partial pressure and contact time were kept constant to obtain a valid comparison of the impact of solvent density in the catalytic activity and selectivity. Three different partial pressures of the mixture were chosen based on the density-pressure curve in order to investigate the pressure tuning effect to Fischer-Tropsch synthesis near critical region.
Book Synopsis Fischer-Tropsch Synthesis on Supported Cobalt Based Catalysts by : Martin Kraum
Download or read book Fischer-Tropsch Synthesis on Supported Cobalt Based Catalysts written by Martin Kraum and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fischer-Tropsch Synthesis, Catalysts and Catalysis by : Burtron H. Davis
Download or read book Fischer-Tropsch Synthesis, Catalysts and Catalysis written by Burtron H. Davis and published by Elsevier Science Limited. This book was released on 2007 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt: The declining supply of crude oils worldwide and the ever increasing demand for petroleum products from China, India, Europe and the US have recently propelled crude prices to unprecedented levels. The future availability of traditional crudes is becoming a source of discussion and debate. Fischer-Tropsch Synthesis, Catalysts and Catalysis offers a timely and comprehensive report on the processing of relatively inexpensive coal deposits into transportation fluids using Fisher-Tropsch process Technology. In addition to recent catalysts and process developments, the book contains the history of the Fisher-Tropsch in Germany and Japan based on captured documents by allied forces. * Increase the understanding of FT process development * Addresses four major areas of interest in Fischer-Tropsch synthesis (FTS)
Book Synopsis Fischer-Tropsch Synthesis by : Robert James Colmyer
Download or read book Fischer-Tropsch Synthesis written by Robert James Colmyer and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: ABSTRACT: The Fischer-Trospch (F-T) synthesis of liquid hydrocarbon fuels from biomass-derived synthesis gas (CO + H2) is a promising way of producing renewable ultra-clean diesel fuel. The Fischer Tropsch process has been used commercially for many decades using coal or natural gas as a feedstock. Recently the focus has switched to renewable resources, such as biomass. Significant effort has been spent developing efficient Fischer-Tropsch catalysts, but very little is known about the effects of nanoparticle oxide supports for Fischer-Tropsch catalysts. In this research project the objectives were to 1) design and build a F-T reactor and 2) use the system to develop new efficient F-T catalysts. A number of different catalysts were prepared, carefully characterized and tested for F-T activity. The initial study involved the effects of support pretreatment and catalyst precursor quality. In addition, ZrO2-promotion was investigated in detail for Co catalysts supported on nanoparticle (n-SiO2) and porous (p-SiO2) silica supports. The results show that the support pretreatment and catalyst precursor have limited effects on the catalytic activities and selectivities. It was also found that ZrO2 addition increases activity and in some cases selectivity with minimal difference between Co/n-SiO2 and Co/p-SiO2.
