Author: P L Silverton
Publisher: CRC Press
ISBN: 9789056991067
Category : Science
Languages : en
Pages : 650
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Book Description
Composition modulation is a method of operating a catalytic reactor to improve catalyst activity or selectivity and has been under study for more than 25 years. In the last few years, several commercial applications have been realized and more will certainly appear. A large international research literature now exists. This book examines this literature and attempts to organize and analyze it with the intent of identifying the magnitude of improvements possible, why modulation is effective, and what questions remain unanswered. Topics include hydrogenation, oxidation, reduction, and polymerization reactions for NOX, SOX, NH3, and hydrocarbons.
Author: N.V. Churaev
Publisher: CRC Press
ISBN: 9789056991494
Category : Science
Languages : en
Pages : 344
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Book Description
Adopts a completely original approach to the study of processes of mass transfer. In contrast to the usual approach, based on the concept of continuum media and the theory of heat and mass transfer, the topic is considered from a new viewpoint, taking into account the heterogeneous dispersal state of porous bodies. The author bases his discussion on the theory of surface forces and microhydrodynamic analysis of the processes of mass transport of gases, liquids and vapors, providing the reader with a systematic account of liquid/solid and gas/solid interfaces. Topics treated in this book include structural peculiarities, equilibrium and properties of liquids in porous bodies. Various mechanisms of mass transfer are considered, including liquid flow in pores and films, gas diffusion, combined transfer of liquid and vapor, convective diffusion in solutions, structure formation, capillary phenomena, and wetting. This unique book provides a wealth of information from the former Soviet Union, which will be of great interest to chemists, physicists and materials scientists, as well as industrialists working with a variety of different products in which disperse systems and porous bodies are important.
Author: Andrzej Stankiewicz
Publisher: CRC Press
ISBN: 9780203913291
Category : Technology & Engineering
Languages : en
Pages : 556
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Book Description
The first guide to compile current research and frontline developments in the science of process intensification (PI), Re-Engineering the Chemical Processing Plant illustrates the design, integration, and application of PI principles and structures for the development and optimization of chemical and industrial plants. This volume updates professionals on emerging PI equipment and methodologies to promote technological advances and operational efficacy in chemical, biochemical, and engineering environments and presents clear examples illustrating the implementation and application of specific process-intensifying equipment and methods in various commercial arenas.
Author: P. L. Silveston
Publisher: Butterworth-Heinemann
ISBN: 0123918669
Category : Science
Languages : en
Pages : 793
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Book Description
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
Author: K. Fujimoto
Publisher: Elsevier
ISBN: 0080887708
Category : Science
Languages : en
Pages : 457
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Book Description
The spillover effect is one of the most promising factors in the enhancement of catalytic reaction rates. The spillover phenemenon was found in the 1960s by several research groups independently. It was defined at the previous International Symposium on Spillover as follows Spillover involves the transport of active species which are adsorbed or formed on a first phase onto another phase that does not adsorb or form the species under the same condition. However, this effect appears typically in the dynamic state, i.e., during reactions, which advance with a considerable reaction rate. This makes it difficult to elucidate the spillover effect through static methods. Therefore, more fundamental investigations are necessary. The development of alternative energy sources and protection of the environment demands highly selective and very rapid catalytic reactions at deviating conditions. To achieve these goals new concepts, such as the spillover effect, are needed. This proceedings book, which comprises 80 papers, contains methods for preparing catalysts in order to realize spillover effects and suggests the most probable mechanisms to explain these non-linear phenomena. It also contains studies on applications of the spillover effect to improve industrial catalytic processes.The book will be invaluable in the development of industrial catalysts and for solving energy and environmental protection problems.
Author:
Publisher:
ISBN:
Category : Chemical engineering
Languages : en
Pages : 1418
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Book Description
Author: Andreas Seidel-Morgenstern
Publisher: John Wiley & Sons
ISBN: 9783527629732
Category : Technology & Engineering
Languages : en
Pages : 292
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Book Description
This authoritative work represents a broad treatment of the field, including the basic principles of membrane reactors, a comparative study of these and conventional fixed-bed reactors or multi-tube reactors, modeling, industrial applications, and emerging applications -- all based on case studies and model reactions with a stringent mathematical framework. The significant progress made over the last few years in this inherently hot multidisciplinary field is summarized in a competent manner, such that the novice can grasp the elementary concepts, while professionals can familiarize themselves with the latest developments in the area. For the industrial practitioner, this practical book covers all important current and potential future applications.
Author: Robert Schlögl
Publisher: Walter de Gruyter GmbH & Co KG
ISBN: 3110608456
Category : Technology & Engineering
Languages : en
Pages : 712
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Book Description
Energy – in the headlines, discussed controversially, vital. The use of regenerative energy in many primary forms leads to the necessity to store grid dimensions for maintaining continuous supply and enabling the replacement of fossil fuel systems. Chemical energy storage is one of the possibilities besides mechano-thermal and biological systems. This work starts with the more general aspects of chemical energy storage in the context of the geosphere and evolves to dealing with aspects of electrochemistry, catalysis, synthesis of catalysts, functional analysis of catalytic processes and with the interface between electrochemistry and heterogeneous catalysis. Top-notch experts provide a sound, practical, hands-on insight into the present status of energy conversion aimed primarily at the young emerging research front.
Author: Boy Cornils
Publisher: Wiley-VCH
ISBN:
Category : Reference
Languages : en
Pages : 528
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Book Description
Comprehensive, succinct and easy to use, this updated third edition contains 50% more content in three volumes. More than 200 top scientists worldwide have contributed over 8,000 entries with 3,300 cross references, on all aspects of bio-, heterogeneous and homogeneous catalysis.
Author: Iqbal M. Mujtaba
Publisher: CRC Press
ISBN: 1351657585
Category : Technology & Engineering
Languages : en
Pages : 593
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Book Description
Exponential growth in population and improved standards of living demand increasing amount of freshwater and are putting serious strain on the quantity of naturally available freshwater worldwide. Water Management: Social and Technological Perspectives discusses developments in energy-efficient water production, management, wastewater treatment, and social and political aspects related to water management and re-use of treated water. It features a scientific and technological perspective to meeting current and future needs, discussing such technologies as membrane separation using reverse osmosis, the use of nanoparticles for adsorption of impurities from wastewater, and the use of thermal methods for desalination. The book also discusses increasing the efficiency of water usage in industrial, agricultural, and domestic applications to ensure a sustainable system of water production, usage, and recycling. With 30 chapters authored by internationally renowned experts, this work offers readers a comprehensive view of both social and technological outlooks to help solve this global issue.
