New Aspects of Spillover Effect in Catalysis

New Aspects of Spillover Effect in Catalysis

Author: K. Fujimoto

Publisher: Elsevier

Published: 1993-08-23

Total Pages: 457

ISBN-13: 0080887708

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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.


Fluid Catalytic Cracking VII:

Fluid Catalytic Cracking VII:

Author:

Publisher: Elsevier

Published: 2011-09-22

Total Pages: 357

ISBN-13: 0080548512

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Since 1987, the Petroleum Division of the American Chemical Society (ACS) has sponsored at 3 year intervals an international symposium on fluid cracking catalysts (FCC) technology. This volume collects the recent progress of this technology as reported in the papers presented during the 232th National Meeting of the ACS in San Francisco, September 10-14, 2006.Sixty-six years after the introduction of the fluid cracking catalyst process, it remains the main process of gasoline generation for the estimated 237 millions cars on US roads. Catalysts testing and evaluation still remains a subject of interest, debate and controversy. Lambda sweep testing, testing of SOx, NOx and combustion promoters have been discussed in details together with catalyst evaluation for atmospheric residues and metal contaminated oils cracking.Of particular interest has been the introduction of novel concept in process design aimed at improving cracked product selectivity such as two-stage risers for better gasoline and olefins production and downer technology for high severity processes . The importance of solid state nuclear magnetic resonance (NMR) in the study of crude oils, catalysts and reaction products are illustrated by several examples. Two contributions describe the use of predictive methods to understand FCC aging and deactivationand personal overviews of the development of SOx and combustion promoters technology are presented.* Presents findings from the tri-annual international symposium on fluid cracking catalysts (FCC) technology, sponsored by the Petroleum Division of the American Chemical Society (ACS) * Two contributions describe the use of predictive methods to understand FCC aging and deactivation* Personal overviews by the authors of the development of SOx and combustion promoters technology


New Developments in Selective Oxidation by Heterogeneous Catalysis

New Developments in Selective Oxidation by Heterogeneous Catalysis

Author: P. Ruiz

Publisher: Elsevier

Published: 1992-02-06

Total Pages: 493

ISBN-13: 0080887139

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This volume contains invited papers and communications presented at the Third European Workshop Meeting on Selective Oxidation by Heterogeneous Catalysis. The purpose of the meeting was to present recent results and to discuss new aspects of partial oxidation by heterogeneous catalysis. The following topics were discussed: Novel processes for obtaining new fine chemicals by catalytic partial oxidation; selective oxidation and oxidative dehydrogenation of alkanes; new catalysts and advances in preparation methods of oxidation catalysts; new phenomena in partial oxidation and new aspects of surface chemistry in oxide catalysts; new applications of physicochemical methods for characterization of oxide catalysts; oxidation with other agents than oxygen and catalytic oxidation of carbohydrates. This book will provide a valuable set of data on reactions of selective oxidation which will be extremely useful to catalyst and related practitioners, whether fundamentalists or highly applied, and to process engineers who wish to evaluate current findings in this field. The wide-range approach to reactions of selective oxidation will disseminate knowledge in specialized areas of selective oxidation and encourage innovation and creativity.


Drugs During Pregnancy and Lactation

Drugs During Pregnancy and Lactation

Author: H. Garbis

Publisher: Elsevier Science

Published: 2001-12-21

Total Pages: 1300

ISBN-13: 9780444507631

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The care of pregnant women presents one of the paradoxes of modern medicine. Women usually require little medical intervention during an (uneventful) pregnancy. Conversely, those at high risk of damage to their own health or that of their unborn require the help of appropriate medicinal technology, including drugs. Accordingly, there are two classes of pregnant women, the larger group requires support but not much intervention, while the other needs the full range of diagnostic and therapeutic measures applied in any other branch of medicine. This book presents the current state of knowledge about drugs in pregnancy. In each chapter information is presented separately for two different aspects of the problem seeking a drug appropriate for prescription during pregnancy, and assessing the risk of a drug when exposure has already taken place. Practising clinicians who prescribe medicinal products to women who are, or who may become, pregnant, will find this volume an invaluable reference.


Nanocatalysis

Nanocatalysis

Author: Ulrich Heiz

Publisher: Springer Science & Business Media

Published: 2007-01-10

Total Pages: 514

ISBN-13: 3540326464

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Nanocatalysis, a subdiscipline of nanoscience, seeks to control chemical reactions by changing the size, dimensionality, chemical composition, and morphology of the reaction center and by changing the kinetics using nanopatterning of the reaction center. This book offers a detailed pedagogical and methodological overview of the field. Readers discover many examples of current research, helping them explore new and emerging applications.


Catalysts in Petroleum Refining and Petrochemical Industries 1995

Catalysts in Petroleum Refining and Petrochemical Industries 1995

Author: M. Absi-Halabi

Publisher: Elsevier

Published: 1996-01-15

Total Pages: 617

ISBN-13: 0080528694

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Catalysis plays an increasingly critical role in modern petroleum refining and basic petrochemical industries as market demands for and specifications of petroleum and petrochemical products are continuously changing. As we enter the 21st century, new challenges for catalysis science and technology are anticipated in almost every field. Particularly, better utilization of petroleum resources and demands for cleaner transportation fuels are major items. It was against this background that the 2nd International Conference on Catalysts in Petroleum Refining and Petrochemical Industries was organized. The conference was attended by around 300 specialists in the catalysis field from both academia and industry from over 30 countries. It provided a forum for the exchange of ideas between scientists and engineers from the region with their counterparts from industrialized countries.The papers from the conference, which were carefully selected from around 100 submissions, were refereed in terms of scientific and technical content and format in accordance with internationally accepted standards. They comprise a mix of reviews providing an overview of selected areas, original fundamental research results, and industrial experiences.


Proceedings of the Sixteenth World Petroleum Congress

Proceedings of the Sixteenth World Petroleum Congress

Author: Institute of Petroleum

Publisher:

Published: 2001-03

Total Pages: 346

ISBN-13: 9780852932933

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At the start of the new century, we can look at our modern high tech industry and see that oil has gone from a few oil seeps to the single most important raw material traded in the world, in volume and in value, in just over 100 years. The commercial history of the oil industry has been relatively short and dramatic. Where will we be heading in the next 100 years? It would be brave to predict 10 years from now, let alone 100. 100 years ago who could have predicted space travel, a man on the moon, the television, the computer, the internet? The list is endless. The 16th World Petroleum Congress serves as a forum for scientists, technical personnel, economists and management in the oil industry. The trends and outlooks integral to the future success of the industry are the focus of discussions, forums and presentations throughout the Congress. The presentations explore international business opportunities, exchange ideas on global issues, and provide the latest information on technology, business management and industry developments. The 16th Congress theme is Petroleum for Global Development: Networking People, Business and Technology to Create Value. closing ceremonies, the plenary papers, review and forecast papers, technical forum papers and all of the posters and interactive technology presentations. The first volume will contain all the ceremonies and plenary speeches, the Review Forecast Papers and a full index for the complete Proceedings. The other four volumes will contain all the technical presentations split into distinct groups: upstream; downstream: natural gas, petrochemicals and transportation; business management. As well as containing all of the papers, the Proceedings will include a forum review written by the chair of each, plus details of the question and answer sessions. A CD-ROM of the Proceedings is included in the cost of the Five Volume Set.