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Modeling Of The Simulated Countercurrent Moving Bed Chromatographic Reactor Used For The Oxidative Coupling Of Methane
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Book Synopsis Modeling of the Simulated Countercurrent Moving-bed Chromatographic Reactor Used for the Oxidative Coupling of Methane by :
Download or read book Modeling of the Simulated Countercurrent Moving-bed Chromatographic Reactor Used for the Oxidative Coupling of Methane written by and published by . This book was released on 1994 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: The oxidative coupling reaction of methane (OCM) is a potential industrial reaction for the efficient production of ethylene. Replacement of current technologies requires significant product yield improvements. An experimental novel reactor design, the modified simulated countercurrent moving-bed chromatographic reactor (SCMCR), has reported improved ethane and ethylene product yields over other reported values. An understanding of the reactor operation is aided by concurrent mathematical modeling. The model mimics the exact experimental reactor configuration. Four sections are used; each section contains a reaction column and two separation columns connected in series. The feed is switched from section to section at discrete intervals. Reaction occurs in the first column and is followed by product and reactant separation in the ensuing section columns. Langmuir adsorption isotherms are used. The model does not incorporate the realistic and complex kinetics rising, from the OCM, rather a simplified reaction term is used to qualitatively gain insight into the operation of the modified SCMCR. A unimolecular reaction network is used in the model. The rate constants are set to permit a small fractional conversion, 5% per pass, at the concentrations during the first cycle. Similarly to the experimental reactor, the model adds a make-up feed (defined as percentage of the original feed, where excess methane is fed during the first cycle of the experimental reactor) to augment lost reactants.
Book Synopsis A Simulated Countercurrent Moving-bed Chromatographic Reactor for the Oxidative Coupling of Methane by :
Download or read book A Simulated Countercurrent Moving-bed Chromatographic Reactor for the Oxidative Coupling of Methane written by and published by . This book was released on 1994 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt: The oxidative coupling reaction of methane (OCM) represents a potential commercial ethylene production route. However, the highest reported yields do not exceed 20%. The methane coupling reaction is accompanied by the undesired conversion of methane to carbon oxides. The relative amount of oxygen and methane along with other parameters, including temperature, determine the favored reaction pathway. High hydrocarbon to oxygen feed ratios give high ethane/ethylene selectivities but at the expense of the hydrocarbon conversion. When the methane to oxygen feed ratio is low, combustion is favored. The simulated countercurrent moving-bed chromatographic reactor (SCMCR) is applied to the OCM. A modified experimental configuration is designed and evaluated. A four-section apparatus, each containing a reaction and two separation columns, is used to quickly separate the reactants and products using the principles of simulated countercurrent flow. Simultaneous reaction and separation of the reactive products column is desired, but unattainable because of an incompatibility between OCM reaction and separation temperatures. Microreactor yields with a samarium oxide catalyst gives yields between 2% and 10%. Yields as high as 50% are observed with the same catalyst and run conditions in the SCMCR. These yields are significantly higher than previously reported values. The effects of temperature, feed switching time, and methane to oxygen feed ratio have been investigated. The reactor, while not fully optimized, does give promise as an alternative production method for ethylene.
Book Synopsis Modeling, Simulation and Optimization for the Oxidative Coupling of Methane (OCM) in the Simulated Countercurrent Moving-bed Chromatographic Reactor (SCMCR) by : Shaoping Chen
Download or read book Modeling, Simulation and Optimization for the Oxidative Coupling of Methane (OCM) in the Simulated Countercurrent Moving-bed Chromatographic Reactor (SCMCR) written by Shaoping Chen and published by . This book was released on 2002 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Cyclic Separating Reactors by : Takashi Aida
Download or read book Cyclic Separating Reactors written by Takashi Aida and published by John Wiley & Sons. This book was released on 2008-04-15 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cyclic Separating Reactors is a critical examination of the literature covering periodically operated separating reactors incorporating an adsorbent as well as a catalyst, aiming to establish the magnitude of performance improvement available with this type of reactor compared to systems in which the reactor and separator are separate units. The adequacy of present models is considered by comparison of simulation and experimental studies, and gaps in understanding or experimental verification of model predictions are identified. Separating reactors, including chromatographic reactors and pressure swing reactors, are an expeditious means of process intensification, reducing both capital and operating costs, particularly where reactions are equilibrium limited. For this reason, cyclically operating separating reactors are attracting considerable interest across the range of chemical manufacturing industries, so this book is a timely and valuable summary of the literature available to the engineer. Following an introduction to multifunctional reactors and to periodic reactor operation, Cyclic Separating Reactors covers both chromatographic and pressure swing adsorption reactors, and is written for chemical engineers in both industry and academe. First book to critically examine the literature surrounding Cyclically Operating Separating Reactors providing a straightforward entry to, and detailed appraisal of, the literature, so the reader does not have to engage in an expensive and time consuming literature review Evaluates current models and understanding to give the engineer clear information on what performance can be expected of these reactors and where current information needs to be augmented when designing systems for commercial operation.
Book Synopsis The Simulated Countercurrent Chromatographic Reactor and Separator by : Anna Lee Yvonne Tonkovich
Download or read book The Simulated Countercurrent Chromatographic Reactor and Separator written by Anna Lee Yvonne Tonkovich and published by . This book was released on 1992 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Periodic Operation of Chemical Reactors by : P. L. Silveston
Download or read book Periodic Operation of Chemical Reactors written by P. L. Silveston and published by Butterworth-Heinemann. This book was released on 2012-12-04 with total page 793 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive review, prepared by 24 experts, many of whom are pioneers of the subject, brings together in one place over 40 years of research in this unique publication. This book will assist R & D specialists, research chemists, chemical engineers or process managers harnessing periodic operations to improve their process plant performance. Periodic Operation of Reactors covers process fundamentals, research equipment and methods and provides "the state of the art" for the periodic operation of many industrially important catalytic reactions. Emphasis is on experimental results, modeling and simulation. Combined reaction and separation are dealt with, including simulated moving bed chromatographic, pressure and temperature swing and circulating bed reactors. Thus, Periodic Operation of Reactors offers readers a single comprehensive source for the broad and diverse new subject. This exciting new publication is a "must have" for any professional working in chemical process research and development. A comprehensive reference on the fundamentals, development and applications of periodic operation Contributors and editors include the pioneers of the subject as well as the leading researchers in the field Covers both fundamentals and the state of the art for each operation scenario, and brings all types of periodic operation together in a single volume Discussion is focused on experimental results rather than theoretical ones; provides a rich source of experimental data, plus process models Accompanying website with modelling data
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Book Synopsis Methane Conversion in the Simulated Countercurrent Moving-bed Chromatographic Reactor by : Mark Carl Bjorklund
Download or read book Methane Conversion in the Simulated Countercurrent Moving-bed Chromatographic Reactor written by Mark Carl Bjorklund and published by . This book was released on 1999 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Simulated Countercurrent Moving Bed Chromatographic Reactor by : Ajay Kumar Ray
Download or read book The Simulated Countercurrent Moving Bed Chromatographic Reactor written by Ajay Kumar Ray and published by . This book was released on 1992 with total page 558 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Announcements & Index by :
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1995 with total page 716 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Chemical Reactors by : Pierre Trambouze
Download or read book Chemical Reactors written by Pierre Trambouze and published by Editions OPHRYS. This book was released on 2004 with total page 694 pages. Available in PDF, EPUB and Kindle. Book excerpt: This in-depth revision provides a summary of current knowledge, updated based on the most recent literature in the field. The reader will find recommendations on the choice of correlations to apply, depending on the case, and useful references to the original documents on industrial processes. This practical user's guide is designed for engineers in industries involved with the problems of chemical transformations, and for professors and students of process engineering. Whether the reader is working in a design department, an engineering firm or an R&D department, or is managing production plants, he will find material here that is directly applicable to the solution of his problems.Contents: 1. Definitions and fundamental concepts. 2. Single-phase reactors. 3. General characteristics of reactors with two fluid phases. 4. Experimental data and correlations for gas-liquid reactors. 5. Experimental data and correlations for liquid-liquid reactors. 6. General characteristics of heterogeneous catalytic reactors. 7. Reactors employing a fluid phase and a catalytic solid phase: fixed bed, moving bed, fluidized bed. 8. Three-phase reactors: gas, liquid, and catalytic solid. 9. Case studies. 10. Multifunctional reactors and future developments. General nomenclature. Index.
Download or read book Energy Research Abstracts written by and published by . This book was released on 1995 with total page 870 pages. Available in PDF, EPUB and Kindle. Book excerpt: Semiannual, with semiannual and annual indexes. References to all scientific and technical literature coming from DOE, its laboratories, energy centers, and contractors. Includes all works deriving from DOE, other related government-sponsored information, and foreign nonnuclear information. Arranged under 39 categories, e.g., Biomedical sciences, basic studies; Biomedical sciences, applied studies; Health and safety; and Fusion energy. Entry gives bibliographical information and abstract. Corporate, author, subject, report number indexes.
Book Synopsis A Counter-current Moving-bed Chromatographic Reactor by : Theodore Petroulas
Download or read book A Counter-current Moving-bed Chromatographic Reactor written by Theodore Petroulas and published by . This book was released on 1984 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Reactive Separation for Process Intensification and Sustainability by : Carlos Ariel Cardona Alzate
Download or read book Reactive Separation for Process Intensification and Sustainability written by Carlos Ariel Cardona Alzate and published by CRC Press. This book was released on 2019-12-23 with total page 157 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes, analyses and discusses the main principles, phenomena and design strategies of reactive separation processes with an emphasis on the intensification as a basis of the sustainability. Different reactive separation processes are explained in detail to show the phenomena and with the purpose of understanding when their use allows advantages based on the output results. Case examples are analysed and the perspective of these processes in the future is discussed. The overall sustainability of reactive separation processes in the industry is also explained separately.
Book Synopsis Design and Performance of a Simulated Countercurrent Moving-Bed Chromatographic Reactor by : Shuiyuan Huang
Download or read book Design and Performance of a Simulated Countercurrent Moving-Bed Chromatographic Reactor written by Shuiyuan Huang and published by . This book was released on 1999 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Hydrocarbon Chemistry by : George A. Olah
Download or read book Hydrocarbon Chemistry written by George A. Olah and published by John Wiley & Sons. This book was released on 2017-09-08 with total page 1240 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides an unparalleled contemporary assessment of hydrocarbon chemistry – presenting basic concepts, current research, and future applications. • Comprehensive and updated review and discussion of the field of hydrocarbon chemistry • Includes literature coverage since the publication of the previous edition • Expands or adds coverage of: carboxylation, sustainable hydrocarbons, extraterrestrial hydrocarbons • Addresses a topic of special relevance in contemporary science, since hydrocarbons play a role as a possible replacement for coal, petroleum oil, and natural gas as well as their environmentally safe use • Reviews of prior edition: “...literature coverage is comprehensive and ideal for quickly reviewing specific topics...of most value to industrial chemists...” (Angewandte Chemie) and “...useful for chemical engineers as well as engineers in the chemical and petrochemical industries.” (Petroleum Science and Technology)
Book Synopsis Optimal Operation of Simulated Moving Bed Reactor for Oxidative Coupling of Methane by : Prodip Kumar Kundu
Download or read book Optimal Operation of Simulated Moving Bed Reactor for Oxidative Coupling of Methane written by Prodip Kumar Kundu and published by . This book was released on 2008 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt:
