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Past and Present in DeNOx Catalysis From Molecular Modelling to Chemical Engineering

Past and Present in DeNOx Catalysis  From Molecular Modelling to Chemical Engineering Book
Author : Pascal Granger,Vasile Pârvulescu
Publisher : Elsevier
Release : 2007-12-15
ISBN : 9780080554051
Language : En, Es, Fr & De

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Book Description :

This book offers an overview of the state of the art in the field of DeNOx catalysis in order to focus novel orientations, new technological developments, from laboratory to industrial scale. A particular attention has been paid towards the implementation of catalytic processes for minimising NOx emissions either from stationary or mobile sources under lean condition to meet future standard regulations of NOx emissions. In the first part of this book, critical aspects reported in the literature which usually make difficult the achievement of efficient catalytic technologies in those conditions are summarised and analysed in order two separate new perspectives. The second part deals with fundamental aspects at molecular level. A better understanding of the reactions involved under unsteady-state conditions is probably a pre-requisite step for improving the performances of the actual processes or developing original ones. The development of powerful in situ spectroscopic techniques is of fundamental interest for kinetic modelling. Correlations between spectroscopic and kinetic data with those obtained from theoretical calculations are reported. Some illustrations emphasise the fact that these comparisons may help in determining the nature of the catalytic active sites and building predictive tools for simulations under running conditions. The latter part of this book will be illustrated by different practical approaches covering various aspects related to the catalysts preparation and the development of alternative technologies which include industrial considerations. - New technological developments for investigating catalytic reactions in transient conditions (in situ and operando spectroscopic techniques) - Concerted approaches in DeNOx catalysis - How academic aspects (kinetic, in situ spectroscopic measurements) can provide useful information for practical applications - Comparison of different approaches provided by academic and industrial partners

Past and Present in DeNOx Catalysis

Past and Present in DeNOx Catalysis Book
Author : Pascal Granger,Vasile I. Pârvulescu
Publisher : Elsevier Science Limited
Release : 2007
ISBN : 9780444530585
Language : En, Es, Fr & De

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Book Description :

This book offers an overview of the state of the art in the field of DeNOx catalysis in order to focus novel orientations, new technological developments, from laboratory to industrial scale. A particular attention has been paid towards the implementation of catalytic processes for minimising NOx emissions either from stationary or mobile sources under lean condition to meet future standard regulations of NOx emissions. In the first part of this book, critical aspects reported in the literature which usually make difficult the achievement of efficient catalytic technologies in those conditions are summarised and analysed in order two separate new perspectives. The second part deals with fundamental aspects at molecular level. A better understanding of the reactions involved under unsteady-state conditions is probably a pre-requisite step for improving the performances of the actual processes or developing original ones. The development of powerful in situ spectroscopic techniques is of fundamental interest for kinetic modelling. Correlations between spectroscopic and kinetic data with those obtained from theoretical calculations are reported. Some illustrations emphasise the fact that these comparisons may help in determining the nature of the catalytic active sites and building predictive tools for simulations under running conditions. The latter part of this book will be illustrated by different practical approaches covering various aspects related to the catalysts preparation and the development of alternative technologies which include industrial considerations. - New technological developments for investigating catalytic reactions in transient conditions (in situ and operando spectroscopic techniques) - Concerted approaches in DeNOx catalysis - How academic aspects (kinetic, in situ spectroscopic measurements) can provide useful information for practical applications - Comparison of different approaches provided by academic and industrial partners

Plasma Catalysis

Plasma Catalysis Book
Author : Xin Tu,J. Christopher Whitehead,Tomohiro Nozaki
Publisher : Springer Nature
Release : 2019-11-21
ISBN : 3030051897
Language : En, Es, Fr & De

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Book Description :

This book provides a comprehensive overview of the field of plasma catalysis, regarded as a promising alternative to thermal processes for energy and environmental applications. It bridges the gap between the plasma and catalysis research communities, covering both the fundamentals of plasma catalysis and its application in environmental and energy research. The first section of the book offers a broad introduction to plasma catalysis, covering plasma-catalyst systems, interactions, and modeling. The core of the book then focuses on different applications, describing a wide range of plasma-catalytic processes in catalyst synthesis, environmental clean-up, greenhouse gas conversion and synthesis of materials for energy applications. Chapters cover topics ranging from removal of NOx and VOCs to conversion of methane, carbon dioxide and the reforming of ethanol and methanol. Written by a group of world-leading researchers active in the field, the book forms a valuable resource for scientists, engineers and students with different research backgrounds including plasma physics, plasma chemistry, catalysis, energy, environmental engineering, electrical engineering and material engineering.

Multiscale and Innovative Kinetic Approaches in Heterogeneous Catalysis

Multiscale and Innovative Kinetic Approaches in Heterogeneous Catalysis Book
Author : Pascal Granger,Yves Schuurman
Publisher : MDPI
Release : 2019-07-11
ISBN : 303921179X
Language : En, Es, Fr & De

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Book Description :

Kinetics and reactor modeling for heterogeneous catalytic reactions are prominent tools for investigating and understanding catalyst functionalities at nanoscale and the related rates of complex reaction networks. This book illustrates some examples related to the transformation of simple to more complex feedstocks, including different types of reactor designs, i.e., steady-state, transient plug flow reactors, and TAP reactors for which there is sometimes a strong gap in the operating conditions from ultra-high-vacuum to high-pressure conditions. In conjunction, new methodologies have emerged, giving rise to more robust microkinetics models. As exemplified, they include the kinetics and the dynamics of the reactors and span a large range of length and time scales. The objective of this Special Issue is to provide contributions that can illustrate recent advances and novel methodologies for elucidating the kinetics of heterogeneous reactions and the necessary multiscale approach for optimizing the reactor design. This book is dedicated to postgraduate and scientific researchers, and experts in heterogeneous catalysis. It may also serve as a source of original information for the elaboration of lessons on catalysis for Master students.

Plasma Chemistry and Catalysis in Gases and Liquids

Plasma Chemistry and Catalysis in Gases and Liquids Book
Author : Vasile I. Parvulescu,Monica Magureanu,Petr Lukes
Publisher : John Wiley & Sons
Release : 2013-03-19
ISBN : 3527649549
Language : En, Es, Fr & De

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Book Description :

Filling the gap for a book that covers not only plasma in gases but also in liquids, this is all set to become the standard reference for this topic. It provides a broad-based overview of plasma-chemical and plasmacatalytic processes generated by electrical discharges in gases, liquids and gas/liquid environments in both fundamental and applied aspects by focusing on their environmental and green applications and also taking into account their practical and economic viability. With the topics addressed by an international group of major experts, this is a must-have for scientists, engineers, students and postdoctoral researchers specializing in this field.

Urea SCR Technology for deNOx After Treatment of Diesel Exhausts

Urea SCR Technology for deNOx After Treatment of Diesel Exhausts Book
Author : Isabella Nova,Enrico Tronconi
Publisher : Springer Science & Business Media
Release : 2014-03-14
ISBN : 1489980717
Language : En, Es, Fr & De

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Book Description :

Urea-SCR Technology for deNOx After Treatment of Diesel Exhausts presents a complete overview of the selective catalytic reduction of NOx by ammonia/urea. The book starts with an illustration of the technology in the framework of the current context (legislation, market, system configurations), covers the fundamental aspects of the SCR process (catalysts, chemistry, mechanism, kinetics) and analyzes its application to useful topics such as modeling of full scale monolith catalysts, control aspects, ammonia injections systems and integration with other devices for combined removal of pollutants.

Coal Fired Flue Gas Mercury Emission Controls

Coal Fired Flue Gas Mercury Emission Controls Book
Author : Jiang Wu,Yan Cao,Weiguo Pan,Weiping Pan
Publisher : Springer
Release : 2015-03-17
ISBN : 3662463474
Language : En, Es, Fr & De

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Book Description :

Mercury (Hg) is one of the most toxic heavy metals, harmful to both the environment and human health. Hg is released into the atmosphere from natural and anthropogenic sources and its emission control has caused much concern. This book introduces readers to Hg pollution from natural and anthropogenic sources and systematically describes coal-fired flue gas mercury emission control in industry, especially from coal-fired power stations. Mercury emission control theory and experimental research are demonstrated, including how elemental mercury is oxidized into oxidized mercury and the effect of flue gas contents on the mercury speciation transformation process. Mercury emission control methods, such as existing APCDs (air pollution control devices) at power stations, sorbent injection, additives in coal combustion and photo-catalytic methods are introduced in detail. Lab-scale, pilot-scale and full-scale experimental studies of sorbent injection conducted by the authors are presented systematically, helping researchers and engineers to understand how this approach reduces the mercury emissions in flue gas and to apply the methods in mercury emission control at coal-fired power stations. Readers will arrive at a comprehensive understanding of various mercury emission control methods that are suitable for industrial applications. The book is intended for scientists, researchers, engineers and graduate students in the fields of energy science and technology, environmental science and technology and chemical engineering.

Catalysis

Catalysis Book
Author : James J Spivey
Publisher : Royal Society of Chemistry
Release : 2007-10-31
ISBN : 1847553303
Language : En, Es, Fr & De

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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.

Catalysis and Automotive Pollution Control IV

Catalysis and Automotive Pollution Control IV Book
Author : N. Kruse,A. Frennet,J.-M. Bastin
Publisher : Elsevier
Release : 1998-05-29
ISBN : 9780080528618
Language : En, Es, Fr & De

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Book Description :

In spite of the energy crises and the recession, there has been a global, explosive growth in the amount of motor vehicles. In the past 50 years, the amount has increased from 50 to 700 million vehicles. For economical reasons they will probably continue to be used for a considerable number of years, despite the poor yield of internal combustion engines resulting in the inevitable production of some gaseous pollutants. The subsequent increase of gaseous pollutants in our atmosphere caused by exhaust gas from automobiles has enhanced the problem of the elimination of these pollutants produced by internal combustion engines. Catalysis has proven to be the best solution to lower the content of exhaust gas in pollutants. As its predecessors, CAPoC4 proved to be a suitable platform for discussing technological improvements and developments along with future perspectives and challenges. In the light of new results and further legislative regulations, the following topics were intensely discussed: *low light-off behaviour based on improved catalysts and substrate formulations *efficient adsorber systems for storage of hydrocarbon emissions *electrically heated catalyst systems ahead the main catalyst or, alternatively, close coupled catalysts (at the manifold of the engine) • lean DeNOx catalysts allowing for decomposition of NOx in the oxygen-rich exhaust of direct injection gasoline engines and high speed injection diesel engines or, alternatively, NOx trapping/reduction in a hybrid approach * collection and destruction of dry particulates or soot. There is no doubt that clean vehicle technology is a vital part of improving air quality. Challenges remain and call for technological answers. Catalytic air pollution control is still an area providing a considerable incentive for innovative work.

Improved Oil Recovery

Improved Oil Recovery Book
Author : Editions Technic Staff
Publisher : Editions OPHRYS
Release : 1990
ISBN : 9782710811114
Language : En, Es, Fr & De

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Book Description :

Zeolites A Refined Tool for Designing Catalytic Sites

Zeolites  A Refined Tool for Designing Catalytic Sites Book
Author : L. Bonneviot,S. Kaliaguine
Publisher : Elsevier
Release : 1995-09-08
ISBN : 9780080544694
Language : En, Es, Fr & De

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Book Description :

Formerly, the catalytic use of zeolites was exclusive to the field of acid catalysis. Nowadays, zeolites also find applications as catalysts in a wide array of chemical reactions such as; base catalyzed reactions, Redox reactions and catalytic reactions on transition metals and their complexes in confined environments. The concepts of Brønsted or Lewis acid-base pairs are adequately illustrated in the literature and well-understood in terms of structural and electronic properties of zeolites. By contrast, properties of chemically modified silicates, aluminosilicates and aluminophosphates have not yet been fully explored. The list of oxydo-reduction reactions performed in the presence of these new materials is growing as demonstrated by the selective catalytic reduction of nitrogen oxides or the numerous oxidations employing hydrogen peroxide. Much effort is currently being made to get a better insight into the nature of the sites involved. The zeolite lattice may also be used as a host for encapsulated complexes or metallic clusters allowing the control of nuclearity of these active species and the steric constraints imposed on the reactants. Molecular sieve and shape selectivity effects have also constituted fascinating aspects of zeolite properties. Recent developments leading to increasingly large pore sizes with VPI-5, cloverite and more recently mesoporous molecular sieves have broadened the spectrum of these applications. Indeed, larger and larger reactant and product molecules can be accommodated in these lattices. These new adsorbant/adsorbate systems create additional needs for experimental data and theoretical descriptions of transport properties, in particular of mono- and multi-components diffusion coefficients in the zeolite pore lattice. All these themes, representing the forefront and current trends in zeolite research, were discussed in the submitted papers to the symposium and are widely represented in the selected papers contained in this volume. A feature common to most of these contributions is the combined use of a variety of analytical techniques. Some of these techniques are at the frontier of the latest analytical developments such as multiple scattering EXAFS and bidimensional MAS-NMR.

Nanoparticles and Catalysis

Nanoparticles and Catalysis Book
Author : Didier Astruc
Publisher : John Wiley & Sons
Release : 2008-06-25
ISBN : 3527621334
Language : En, Es, Fr & De

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Book Description :

Written by international experts, this monograph combines two of the most important aspects of modern chemistry, presenting the latest knowledge on these environmental friendly applications. This result is a comprehensive overview of the application of nanoparticles in catalysis, focusing on synthesis and the most important reaction types, providing all the information needed by catalytic, organic and solid state chemists, as well as those working with or on organometallics, materials scientists, and chemists in industry.

Catalysts for Upgrading Heavy Petroleum Feeds

Catalysts for Upgrading Heavy Petroleum Feeds Book
Author : Edward Furimsky
Publisher : Elsevier
Release : 2007-09-12
ISBN : 0080549314
Language : En, Es, Fr & De

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Book Description :

The book provides the most up-to-date information on testing and development of hydroprocessing catalysts with the aim to improve performance of the conventional and modified catalysts as well as to develop novel catalytic formulations. Besides diverse chemical composition, special attention is devoted to pore size and pore volume distribution of the catalysts. Properties of the catalysts are discussed in terms of their suitability for upgrading heavy feeds. For this purpose atmospheric residue was chosen as the base for defining other heavy feeds which comprise vacuum gas oil, deasphalted oil and vacuum residues in addition to topped heavy crude and bitumen. Attention is paid to deactivation with the aim to extent catalyst life during the operation. Into consideration is taken the loss of activity due to fouling, metal deposition, coke formed as the result of chemical reaction and poisoning by nitrogen bases. Mathematical models were reviewed focussing on those which can simulate performance of the commercial operations. Configurations of hydroprocessing reactors were compared in terms of their capability to upgrade various heavy feeds providing that a suitable catalyst was selected. Strategies for regeneration, utilization and disposal of spent hydroprocesing catalysts were evaluated. Potential of the non-conventional hydroprocessing involving soluble/dispersed catalysts and biocatalysts in comparison with conventional methods were assessed to identify issues which prevent commercial utilization of the former. A separate chapter is devoted to catalytic dewaxing because the structure of dewaxing catalysts is rather different than that of hydroprocessing catalysts, i.e., the objective of catalytic dewaxing is different than that of the conventional hydroprocessing, The relevant information in the scientific literature is complemented with the Patent literature covering the development of catalysts and novel reactor configurations. Separate chapter was added to distinguish upgrading capabilities of the residues catalytic cracking processes from those employing hydroprocessing. Upper limits on the content of carbon residue and metals in the feeds which can still be upgraded by the former processes differ markedly from those in the feeds which can be upgraded by hydroprocessing. It is necessary that the costs of modifications of catalytic cracking processes to accommodate heavier feeds are compared with that of hydroprocessing methods. Objective of the short chapter on upgrading by carbon rejecting processes was to identify limits of contaminants in heavy feeds beyond which catalytic upgrading via hydroprocessing becomes uneconomical because of the costs of catalyst inventory and that of reactors and equipment. - Comprehensive and most recent information on hydroprocessing catalysts for upgrading heavy petroleum feeds. - Compares conventional, modified and novel catalysts for upgrading a wide range of heavy petroleum feeds. - Comparison of conventional with non-conventional hydroprocessing, the latter involving soluble/dispersed catalysts and biocatalysts. - Development and comparison of mathematical models to simulate performance of catalytic reactors including most problematic feeds. - Residues upgrading by catalytic cracking in comparison to hydroprocessing.

GB T 31584 2015 Translated English of Chinese Standard GBT 31584 2015 GB T31584 2015 GBT31584 2015

GB T 31584 2015  Translated English of Chinese Standard  GBT 31584 2015  GB T31584 2015  GBT31584 2015  Book
Author : www.ChineseStandard.net
Publisher : https://www.chinesestandard.net
Release : 2016-09-24
ISBN :
Language : En, Es, Fr & De

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Book Description :

This Standard specifies the terms and definitions, product specifications, requirements, test methods, inspection rules, marking, packaging, transportation and storage, product accompanying documents of plate-type flue gas DeNOx catalysts. This Standard is applicable for vanadium and titanium NH3 selective catalytic reduction plate-type flue gas DeNOx catalyst.

Principles and Practice of Heterogeneous Catalysis

Principles and Practice of Heterogeneous Catalysis Book
Author : John Meurig Thomas,W. John Thomas
Publisher : John Wiley & Sons
Release : 2014-11-19
ISBN : 352768378X
Language : En, Es, Fr & De

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Book Description :

This long-awaited second edition of the successful introduction to the fundamentals of heterogeneous catalysis is now completely revised and updated. Written by internationally acclaimed experts, this textbook includes fundamentals of adsorption, characterizing catalysts and their surfaces, the significance of pore structure and surface area, solid-state and surface chemistry, poisoning, promotion, deactivation and selectivity of catalysts, as well as catalytic process engineering. A final section provides a number of examples and case histories. With its color and numerous graphics plus references to help readers to easily find further reading, this is a pivotal work for an understanding of the principles involved.

Catalytic Air Pollution Control

Catalytic Air Pollution Control Book
Author : Ronald M. Heck,Robert J. Farrauto,Suresh T. Gulati
Publisher : John Wiley & Sons
Release : 2012-04-02
ISBN : 1118397711
Language : En, Es, Fr & De

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Book Description :

Catalytic Air Pollution Control: Commercial Technology is the primary source for commercial catalytic air pollution control technology, offering engineers a comprehensive account of all modern catalytic technology. This Third Edition covers all the new advances in technology in automotive catalyst control technology, diesel engine catalyst control technology, small engine catalyst control technology, and alternate sustainable fuels for auto and diesel.

Metal Oxides in Heterogeneous Catalysis

Metal Oxides in Heterogeneous Catalysis Book
Author : Jacques C. Vedrine
Publisher : Elsevier
Release : 2018-01-11
ISBN : 0128116323
Language : En, Es, Fr & De

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Book Description :

Metal Oxides in Heterogeneous Catalysis is an overview of the past, present and future of heterogeneous catalysis using metal oxides catalysts. The book presents the historical, theoretical, and practical aspects of metal oxide-based heterogeneous catalysis. Metal Oxides in Heterogeneous Catalysis deals with fundamental information on heterogeneous catalysis, including reaction mechanisms and kinetics approaches.There is also a focus on the classification of metal oxides used as catalysts, preparation methods and touches on zeolites, mesoporous materials and Metal-organic frameworks (MOFs) in catalysis. It will touch on acid or base-type reactions, selective (partial) and total oxidation reactions, and enzymatic type reactions The book also touches heavily on the biomass applications of metal oxide catalysts and environmentally related/depollution reactions such as COVs elimination, DeNOx, and DeSOx. Finally, the book also deals with future trends and prospects in metal oxide-based heterogeneous catalysis. Presents case studies in each chapter that provide a focus on the industrial applications Includes fundamentals, key theories and practical applications of metal oxide-based heterogeneous catalysis in one comprehensive resource Edited, and contributed, by leading experts who provide perspectives on synthesis, characterization and applications

Fuels and Engines

Fuels and Engines Book
Author : Jean-Claude Guibet,Emmanuelle Faure-Birchem
Publisher : TECHNIP OPHRYS EDITIONS
Release : 1999
ISBN : 9782710807513
Language : En, Es, Fr & De

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Book Description :

Today, more than ever, the subject of fuels and engines arouses keen interest and provokes lively debate among specialists and the general public. This book describes in extensive detail the new technologies that are currently in use or under development that are designed to provide high-quality fuels and ensure their optimal use in the engines used to power automobiles, trucks, aircraft, and ships. All types of fuels are covered: gasoline, diesel fuels, liquefied petroleum gas, natural gas, biofuels, jet fuels, and fuels for special uses. The specific situations encountered in each region of the world, including the United States, Europe, Japan, and the developing countries, are analyzed and compared, with a focus on energy, economics, and politics. This book is a scientific work, yet easy to read; it is objective, yet actively involved. It is thus an excellent reference work for those seeking pertinent, reliable, and comprehensive information on the subject of fuels and engines.