Download or read book Transient Kinetic Studies on the Dehydrogenation of Ethylbenzene to Styrene Over Potassium Promoted Iron Oxide written by Xiaomeng Zhu and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book In situ catalyst reactivation written by Benjamin David Herzog and published by . This book was released on 1982 with total page 474 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Formation of Styrene by Oxidative Dehydrogenation of Ethylbenzene Over Supported Iron Oxide written by Sang-Eon Park and published by . This book was released on 2000 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ethylbenzene Dehydrogenation Into Styrene Kinetic Modeling and Reactor Simulation written by Won Jae Lee and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A fundamental kinetic model based upon the Hougen-Watson formalism was derived as a basis not only for a better understanding of the reaction behavior but also for the design and simulation of industrial reactors. Kinetic experiments were carried out using a commercial potassium-promoted iron catalyst in a tubular reactor under atmospheric pressure. Typical reaction conditions were temperature = 620°C, steam to ethylbenzene mole ratio = 11, and partial pressure of N2 diluent = 0.432 bar. Experimental data were obtained for different operating conditions, i.e., temperature, feed molar ratio of steam to ethylbenzene, styrene to ethylbenzene, and hydrogen to ethylbenzene and space time. The effluent of the reactor was analyzed on-line using two GCs. Kinetic experiments for the formation of minor by-products, i.e. phenylacetylene, [alpha]-methylstyrene, [beta]-methylstyrene, etc, were conducted as well. The reaction conditions were: temperature = 600°C ~ 640°C, a molar ratio of steam to ethylbenzene = 6.5, and partial pressure of N2 diluent = 0.43 bar and 0.64 bar. The products were analyzed by off-line GC. The mathematical model developed for the ethylbenzene dehydrogenation consists of nonlinear simultaneous differential equations in multiple dependent variables. The parameters were estimated from the minimization of the multiresponse objective function which was performed by means of the Marquardt algorithm. All the estimated parameters satisfied the statistical tests and physicochemical criteria. The kinetic model yielded an excellent fit of the experimental data. The intrinsic kinetic parameters were used with the heterogeneous fixed bed reactor model which is explicitly accounting for the diffusional limitations inside the porous catalyst. Multi-bed industrial adiabatic reactors with axial flow and radial flow were simulated and the effect of the operating conditions on the reactor performance was investigated. The dynamic equilibrium coke content was calculated using detailed kinetic model for coke formation and gasification, which was coupled to the kinetic model for the main reactions. The calculation of the dynamic equilibrium coke content provided a crucial guideline for the selection of the steam to ethylbenzene ratio leading to optimum operating conditions.

Download or read book The Oxidative Dehydrogenation of Ethylbenzene to Styrene Over Rare Earth Oxide promoted Molybdena alumina Catalysts written by Jae Jo Kim and published by . This book was released on 1986 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Noble Metals written by Yen-Hsun Su and published by BoD – Books on Demand. This book was released on 2012-02-01 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a broad spectrum of insights into the optical principle, resource, fabrication, nanoscience, and nanotechnology of noble metal. It also looks at the advanced implementation of noble metal in the field of nanoscale materials, catalysts and biosystem. This book is ideal not only for scientific researchers but also as a reference for professionals in material science, engineering, nonascience and plasmonics.

Download or read book Styrene synthesis written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Dehydrogenation of Ethylbenzene Over Iron Oxide based Catalysts in the Presence of Carbon Dioxide written by Naoki Mimura and published by . This book was released on 1998 with total page 3 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Kinetics of the Dehydrogenation of Ethylbenzene Over Uranium Oxide Containing Catalysts written by Hubert Wilhelm Gangolf Heynen and published by . This book was released on 1974 with total page 113 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Dissertation Abstracts International written by and published by . This book was released on 2005 with total page 860 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Chemical Abstracts written by and published by . This book was released on 2002 with total page 2730 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Japanese Technical Periodical Index written by and published by . This book was released on 1987 with total page 572 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book American Doctoral Dissertations written by and published by . This book was released on 1982 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nanostructured Catalysts written by Christian Hess and published by Royal Society of Chemistry. This book was released on 2011-07-22 with total page 453 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book gives a comprehensive up-to-date summary of the existing information on the structural/electronic properties, chemistry and catalytic properties of vanadium and molybdenum containing catalysts. It discusses the importance of nanoscience for the controlled synthesis of catalysts with functional properties and introduces the necessary background regarding surface properties and preparation techniques, leading from a textbook level to the current state of knowledge. Then follows an extensive survey and analysis of the existing open and patent literature - an essential knowledge source for the development of the new generation of partial oxidation catalysts. Important examples from current research on partial oxidation reactions are reviewed from experts in the field. The next chapter discusses the importance of 2- and 3-dimensional model systems for a fundamental understanding of the structure of transition metal oxide catalysts and its correlation to reactivity. Finally, an outlook on research opportunities within the area of partial oxidation reactions is presented.

Download or read book Chemical Engineering Progress written by and published by . This book was released on 1984 with total page 788 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fundamentals of Industrial Catalytic Processes written by Calvin H. Bartholomew and published by . This book was released on 2006-01-01 with total page 966 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Chemical and Catalytic Reaction Engineering written by James J. Carberry and published by Courier Corporation. This book was released on 2001-01-01 with total page 676 pages. Available in PDF, EPUB and Kindle. Book excerpt: Designed to give chemical engineers background for managing chemical reactions, this text examines the behavior of chemical reactions and reactors; conservation equations for reactors; heterogeneous reactions; fluid-fluid and fluid-solid reaction systems; heterogeneous catalysis and catalytic kinetics; diffusion and heterogeneous catalysis; and analyses and design of heterogeneous reactors. 1976 edition.