Fluid Catalytic Cracking Vi Preparation And Characterization Of Catalysts

Author: Mario L. Occelli
Publisher: Elsevier
ISBN: 9780080531724
Size: 67.56 MB
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This volume looks at the recent progress of this technology as reported in the 21 papers presented during the 219th National Meeting of the ACS in New York, September 5-11, 2003. In addition, the volume focuses on the use of modern spectroscopic techniques for the generation of detailed structural analysis required for the advancement of the science of FCC design. Other chapters look at the use and importance of solid state nuclear magnetic resonance (NMR), microcalorimetry and atomic force microscopy (AFM) to the study of FCCs and discussing strategies to control pollutant emissions from a refinery FCCU and looking at advances in FCC preparation.

Fluid Catalytic Cracking

Author: J.S. Magee
Publisher: Elsevier
ISBN: 9780080887685
Size: 15.67 MB
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The primary focus of this book as a whole is on performance - performance of the catalyst, of its surface, of the FCC unit, of the feedstocks employed, of the analytical methods used to characterize the catalysts, and of environmentally directed regulations that govern the production of transportation fuels from petroleum. The emphasis on catalyst performance, particularly commercial performance, essentially dictated that the chapter authors be experienced industrial catalytic chemists and engineers. However, each author approached the task with a clear-cut obligation to connect the roots of the science of FCC catalysis with the technology. Fluid Catalytic Cracking: Science and Technology has been written for workers in industrial catalysis and academia, including graduate students in chemistry or chemical engineering who are interested in acquiring an overall knowledge of one of the world's most important areas of catalysis. The book is concise, each topic is treated briefly; complete, all aspects of FCC catalysis are covered; and clear, anyone involved in this field will find topics of interest.

Fluid Catalytic Cracking Vi

Author: Mario L. Occelli
Publisher: Elsevier Science
ISBN: 9780444514738
Size: 29.84 MB
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An overview of physical adsorption methods for the characterization of finely divided and porous materials and their application to fluid cracking catalysts (FCCs). -- The determination of acidity in fluid cracking catalysts (FCCs) from adsorption microcalorimetry of probe molecules. -- The use of atomic force microscopy (AFM) to study the surface topography of commercial fluid cracking catalysts (FCCs) and pillared interlayered clay (PILC) catalysts. -- New developments of NMR Spectroscopy applied to zeolites. -- New catalysts may provide insights into role of nonframework alumina in catalytic cracking catalysis. -- Mechanism of fluid cracking catalysts deactivation by Fe. -- Simulating iron-induced FCC accessibility losses in lab-scale deactivation. -- Reduction of NOx emissions from FCCU regenerators with additives. -- Oxygen partial pressure effects on vanadium mobility and catalyst deactivation in a simulated FCCU regenerator. -- Comparison of NIR and NMR spectra chemometrics for ...

Acid Base Catalysis Ii

Author: H. Hattori
Publisher: Elsevier
ISBN: 9780080887524
Size: 75.59 MB
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Solid acid catalysts are already being used in various processes in petroleum refining and are presently being studied intensively in both academic and applied fields for usage in a variety of reactions. Solid base catalysts are also gaining increasing recognition as potential catalysts. Both acidic and basic catalysts are promising not only with respect to acid and base-catalyzed reactions but also in materials sciences, such as the production of adsorbents, sensors, ceramics, etc. The present volume presents the text of 21 invited oral presentations and 58 poster presentations. The material covers a wide range of aspects on acid-base catalysis, from quantum chemistry to industrialized processes.

Preparation Of Catalysts V

Author: B. Delmon
Publisher: Elsevier
ISBN: 9780080879192
Size: 79.49 MB
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The organizers of this Fifth Symposium maintained their initial objectives, namely to gather experts from both industries and universities to discuss the scientific problems involved in the preparation of heterogeneous catalysts, and to encourage as much as possible the presentation of research work on catalysts of real industrial significance. Another highlight of these symposia was to reserve a substantial part of the program to new developments in catalyst preparation, new preparation methods and new catalytic systems. The fact that chemical reactions which were hardly conceivable some years ago have become possible today through the development of appropriate catalytic systems proves that catalysis is in constant progress. The papers in this volume deal with studies of unit operations in catalyst preparation, catalyst preparation via the sol-gel route, preparation of catalysts from layered structures and pillaring of clays, preparation and modification of zeolite-based catalysts, carbon supported catalysts, preparation of oxidation catalysts and novel and unusual preparation methods.

Porous Materials In Environmentally Friendly Processes

Author: I. Kiricsi
Publisher: Elsevier
ISBN: 9780080539287
Size: 23.14 MB
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To leave our planet liveable in the next millennium mankind is forced to find environmentally friendly ways in solving the problems of everyday life. Among others, technologies of producing chemicals, absolutely necessary for maintaining a comfortable life, have to be modified, in some instances fundamentally changed now, or in the very near future. Developing new technologies requires strong and innovative fundamental research. In order to provide opportunity for crossfertilization the Federation of European Zeolite Associations (FEZA) decided to organise a conference, where researchers from academia as well as industry can meet, exchange ideas, show and discuss research efforts and results concerning the development of environmentally friendly processes and technologies. The conference, and thus the proceedings are divided into two main parts. The first part contains works concerning the synthesis, modification and characterisation of zeolitic materials as catalyst candidates in environmentally friendly technologies. Works in the second part describe various applications starting from developing highly selective reactions for the fine chemical industry, through waste-water treatment to applying zeolite for formulating bacteria for pest control.

Hydrotreatment And Hydrocracking Of Oil Fractions

Author: B. Delmon
Publisher: Elsevier
ISBN: 9780080534268
Size: 51.34 MB
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The 2nd International Symposium on Hydrotreatment and Hydrocracking of Oil Fractions, which is also the 7th in the series of European Workshops on Hydrotreatment, took place in Antwerpen, Belgium from November 14 to 17. The Symposium emphasized how oil refining faces increasingly severe environmental regulations. These and the increasing application of heavier crudes containing more S-, N- and metal components call for more efficient hydrotreatment and hydrocracking processes. It is clear from the keynote lectures, the oral contributions and the posters of this meeting that adapting the operating conditions will not suffice. Adequate catalysts need to be developed, with different composition and structure. Surface science techniques and molecular modeling are now well established tools for such a development. They should be of help in widely different aspects, like the role of precursors in the preparation or the modifications undergone by the catalyst under reaction conditions. The improvement of hydrotreatment and hydrocracking also needs accurate modeling of the chemical reactor. This requires more representative hydrodynamics and kinetic models whose validity extends to the very low S- and N-contents. These areas should be vigorously developed.

Molecular Sieves From Basic Research To Industrial Applications

Author: Jiri Cejka
Publisher: Elsevier
ISBN: 9780080473512
Size: 11.84 MB
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Due to their unique porous properties, zeolites (also referred to as molecular sieves) are used in a variety of applications - major uses are in petrochemical cracking, ion-exchange (water softening and purification), and in the separation and removal of gases and solvents. Molecular Sieves: From Basic Research to Industrial Applications, Volume 158 A,B presents over 265 worldwide contributions on the latest developments in zeolitic research. Readers will find this book, which is divided into five sections: Synthesis, Characterization, Adsorption, Catalysis, and Novel applications, ideal for staying up to date on current research on porous materials. * Comprehensive overview of current research on porous materials * Contains experimental as well as theoretical input, reflecting the increasing overlap between theory and experiment * Contributions from the world's leading authorities

Catalyst Deactivation 1997

Author: G.A. Fuentes
Publisher: Elsevier
ISBN: 9780080528663
Size: 45.17 MB
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Catalyst Deactivation 1997 focused on 9 key topical areas: carbon deposition and coke formation, chemicals, environmental catalysis, modeling, petroleum processing, poisoning, syngas conversion, techniques, and thermal degradation. All of these areas were well represented at the meeting; moreover, several review articles were presented that provide perspectives on new research and development thrusts. The proceedings of the meeting are organized with six review and award articles at the front of the volume followed by topical articles a keynote, 5-6 oral, and 2-3 poster papers. A list of authors is provided at the end of the book. It should be emphasized that all of the papers were ranked and reviewed by members of the Scientific Committee.