Kinetic and Mechanistic Study of Acid-catalyzed Alkylation of Isobutane with C(4)-olefins at Low Temperatures PDF Download
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Author: Bharatkumar H. Doshi
Publisher:
ISBN:
Category : Alkylation
Languages : en
Pages : 194
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Book Description
Author: Bharatkumar H. Doshi
Publisher:
ISBN:
Category : Alkylation
Languages : en
Pages : 194
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Book Description
Author:
Publisher:
ISBN:
Category : Dissertation abstracts
Languages : en
Pages : 576
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Author: Lien-Mow Lee
Publisher:
ISBN:
Category : Alkylation
Languages : en
Pages : 388
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Author: Lien-Mow Lee
Publisher:
ISBN:
Category : Alkylation
Languages : en
Pages : 174
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Book Description
Author:
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 706
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Author: Philip Kletnieks
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: American Chemical Society. Committee on Professional Training
Publisher:
ISBN:
Category : Chemical engineering
Languages : en
Pages : 1030
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Author: Chin-Huang Liang
Publisher:
ISBN:
Category : Alkylation
Languages : en
Pages : 201
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Book Description
Author: James J Spivey
Publisher: Royal Society of Chemistry
ISBN: 184755329X
Category : Technology & Engineering
Languages : en
Pages : 361
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Book Description
There is an increasing challenge for chemical industry and research institutions to find cost-efficient and environmentally sound methods of converting natural resources into fuels chemicals and energy. Catalysts are essential to these processes and the Catalysis Specialist Periodical Report series serves to highlight major developments in this area. This series provides systematic and detailed reviews of topics of interest to scientists and engineers in the catalysis field. The coverage includes all major areas of heterogeneous and homogeneous catalysis and also specific applications of catalysis such as NOx control kinetics and experimental techniques such as microcalorimetry. Each chapter is compiled by recognised experts within their specialist fields and provides a summary of the current literature. This series will be of interest to all those in academia and industry who need an up-to-date critical analysis and summary of catalysis research and applications. Catalysis will be of interest to anyone working in academia and industry that needs an up-to-date critical analysis and summary of catalysis research and applications. Specialist Periodical Reports provide systematic and detailed review coverage in major areas of chemical research. Compiled by teams of leading experts in their specialist fields, this series is designed to help the chemistry community keep current with the latest developments in their field. Each volume in the series is published either annually or biennially and is a superb reference point for researchers. www.rsc.org/spr
Author: Jorge Maximiliano Martinis Coll
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Complex reaction kinetics of the solid acid alkylation of isobutane with butenes over a proton exchanged Y-zeolite has been modeled at the elementary step level. Starting with a computer algorithm that generated the reaction network based on the fundamentals of the carbenium ion chemistry, the formation of over 100+ product species has been modeled in order to gain understanding of the underlying phenomena leading to rapid catalyst deactivation and product selectivity shifts observed in experimental runs. An experimental investigation of the solid acid alkylation process was carried out in a fixed bed catalytic reactor operating with an excess of isobutane under isothermal conditions at moderate temperatures (353-393 K) in liquid phase. Experimental data varying with run-time for a set of butene space-times and reaction temperatures were collected for parameter estimation purposes. A kinetic model was formulated in terms of rate expressions at the elementary step level including a rigorous modeling of deactivation through site coverage. The single event concept was applied to each rate coefficient at the elementary step level to achieve a significant reduction in the number of model parameters. Based on the identification of structural changes leading to the creation or destruction of symmetry axes and chiral centers in an elementary step, formulae have been developed for the calculation of the number of single events. The Evans-Polanyi relationship and the concept of stabilization energy were introduced to account for energy levels in surface-bonded carbenium ions. A novel functional dependency of the stabilization energy with the nature of the carbenium ion and the carbon number was proposed to account for energy effects from the acid sites on the catalyst. Further reductions in the number of parameters and simplification of the equations for the transient pseudohomogeneous one-dimensional plug-flow model of the reactor were achieved by means of thermodynamic constraints. Altogether, the single event concept, the Evans-Polanyi relationship, the stabilization energy approach and the thermodynamic constraints led to a set of 14 parameters necessary for a complete description of solid acid alkylation at the elementary step level.
