The Microkinetics of heterogeneous catalysis

Author: J. A. Dumesic

Publisher: An American Chemical Society Publication

ISBN: 9780841222144

Category: Language Arts & Disciplines

Page: 315

View: 3950

Defines the emerging field of catalytic reaction synthesis in the search for new catalysts and catalytic processes. Illustrates how experimental data from diverse sources can be consolidated to form a quantitative description of the essential chemistry taking place on the catalyst surface. Elucidates the possible relationships between catalyst kinetic properties and surface chemical bonding properties. Offers examples of microkinetic analysis and catalytic reaction synthesis for a variety of catalytic reactions over metals, oxides, and zeolite catalysts. Illustrates the underlying strategy used to formulate a microkinetic model, calibrate the model to the existing experimental data, and assess the critical aspects of the essential surface chemistry involved in the catalytic process.

Basic Principles in Applied Catalysis

Author: Manfred Baerns

Publisher: Springer Science & Business Media

ISBN: 3662059819

Category: Science

Page: 558

View: 9608

Written by a team of internationally recognized experts, this book addresses the most important types of catalytic reactions and catalysts as used in industrial practice. Both applied aspects and the essential scientific principles are described. The main topics can be summarized as follows: heterogeneous, homogeneous and biocatalysis, catalyst preparation and characterization, catalytic reaction engineering and kinetics, catalyst deactivation and industrial perspective.

Dynamics of Surfaces and Reaction Kinetics in Heterogeneous Catalysis

Author: G.F. Froment,K.C. Waugh

Publisher: Elsevier

ISBN: 9780080530628

Category: Technology & Engineering

Page: 594

View: 7254

Many processes of the chemical industry are based upon heterogeneous catalysis. Two important items of these processes are the development of the catalyst itself and the design and optimization of the reactor. Both aspects would benefit from rigorous and accurate kinetic modeling, based upon information on the working catalyst gained from classical steady state experimentation, but also from studies using surface science techniques, from quantum chemical calculations providing more insight into possible reaction pathways and from transient experimentation dealing with reactions and reactors. This information is seldom combined into a kinetic model and into a quantitative description of the process. Generally the catalytic aspects are dealt with by chemists and by physicists, while the chemical engineers are called upon for mechanical aspects of the reactor design and its control. The symposium "Dynamics of Surfaces and Reaction Kinetics in Heterogeneous Catalysis" aims at illustrating a more global and concerted approach through a number of prestigious keynote lectures and severely screened oral and poster presentations.

Modeling and Simulation of Heterogeneous Catalytic Reactions

From the Molecular Process to the Technical System

Author: Olaf Deutschmann

Publisher: John Wiley & Sons

ISBN: 3527639888

Category: Science

Page: 370

View: 2389

The Nobel Prize in Chemistry 2007 awarded to Gerhard Ertl for his groundbreaking studies in surface chemistry highlighted the importance of heterogeneous catalysis not only for modern chemical industry but also for environmental protection. Heterogeneous catalysis is seen as one of the key technologies which could solve the challenges associated with the increasing diversification of raw materials and energy sources. It is the decisive step in most chemical industry processes, a major method of reducing pollutant emissions from mobile sources and is present in fuel cells to produce electricity. The increasing power of computers over the last decades has led to modeling and numerical simulation becoming valuable tools in heterogeneous catalysis. This book covers many aspects, from the state-of-the-art in modeling and simulations of heterogeneous catalytic reactions on a molecular level to heterogeneous catalytic reactions from an engineering perspective. This first book on the topic conveys expert knowledge from surface science to both chemists and engineers interested in heterogeneous catalysis. The well-known and international authors comprehensively present many aspects of the wide bridge between surface science and catalytic technologies, including DFT calculations, reaction dynamics on surfaces, Monte Carlo simulations, heterogeneous reaction rates, reactions in porous media, electro-catalytic reactions, technical reactors, and perspectives of chemical and automobile industry on modeling heterogeneous catalysis. The result is a one-stop reference for theoretical and physical chemists, catalysis researchers, materials scientists, chemical engineers, and chemists in industry who would like to broaden their horizon and get a substantial overview on the different aspects of modeling and simulation of heterogeneous catalytic reactions.

Engineering Catalysis

Author: Dmitry Murzin

Publisher: Walter de Gruyter

ISBN: 3110283379

Category: Technology & Engineering

Page: 376

View: 9024

With well over 90% of all processes in the industrial chemical production being of catalytic nature, catalysis is a mature though ever interesting topic. The idea of this book is to tackle various aspects of heterogeneous catalysis from the engineering point of view and go all the way from engineering of catalysis, catalyst preparation, characterization, reaction kinetics, mass transfer to catalytic reactors and the implementation of catalysts in chemical technology. Aimed for graduate students it is also a useful resource for professionals coming from the more academic side.

Fluid Catalytic Cracking III

Materials and Processes

Author: Mario L. Occelli,Paul O'Connor

Publisher: American Chemical Society

ISBN: 9780841229969

Category: Law

Page: 370

View: 1132

Discusses the formulation, characterization, microactivity, and pilot-plant testing, and product analysis of fluid cracking catalysts. Examines the use of modern spectroscopic techniques such as infrared spectroscopy, solid-state nuclear magnetic resonance spectroscopy, and X-ray photoelectron spectroscopy for the analysis of FCC catalysts. Presents the first use of atomic force microscopy in the study of FCC catalysts. Studies the impact of environmental laws on the discovery of novel FCC catalysts.


Recent Laboratory and Industrial Developments

Author: Lyle Frederick Albright,Richard V. C. Carr,Robert J. Schmitt

Publisher: Amer Chemical Society

ISBN: 9780841233935

Category: Science

Page: 281

View: 8896

Provides a comprehensive overview of N [2O [5 chemistry. This work reports electrochemical synthesis of N [2O [5 in nitric acid and isolation of aproptic N [2O [5; discusses scaling up the synthesis of N [2O [5 in both the laboratory and bulk processes; presents synthesis of new explosives and propellant ingredients, including cage and heterocyclic compounds and new energetic polymers; and reports non-acidic nitration of compounds using N [2O [5.

Liquid Crystalline Polymer Systems

Technological Advances

Author: Avraam I. Isayev,Thien Kyu,Stephen Z. D. Cheng

Publisher: Amer Chemical Society

ISBN: 9780841234086

Category: Science

Page: 418

View: 6646

Provides a comprehensive report on the synthesis, structure, rheology, processing, performance, and applications of liquid-crystalline polymers (LCPs). Discusses self-reinforced composites prepared through the melt processing of thermoplastics and thermotropic LCPs. Addresses current research efforts in making polymer-dispersed liquid crystals. Reports recent studies on the structure and phase behavior of mesophases. Describes the synthesis and properties of new main-chain and side-chain liquid-crystalline block copolymers, mesogen-jacketed LCPs, and liquid-crystalline thermosets.

Encapsulation and Controlled Release of Food Ingredients

Author: Sara J. Risch,Gary Reineccius,American Chemical Society. Division of Agricultural and Food Chemistry

Publisher: Amer Chemical Society


Category: Technology & Engineering

Page: 214

View: 7723

Reviews the major methods used to encapsulate food ingredients, including spray drying, spray chilling and cooling, fluidized bed coating, liposome entrapment, rotational suspension separation, extrusion and inclusion complexation. Provides information on the types of carriers used for encapsulation and controlled release. Presents recent research on practical applications of encapsulation and on how encapsulates perform in food products. Reviews patents in the field of encapsulation and controlled release. Provides current and detailed information on emerging methods, including liposomes and coacervation.

Enzymatic Browning and Its Prevention

Author: Chang Y. Lee,John R. Whitaker

Publisher: Amer Chemical Society

ISBN: 9780841232495

Category: Science

Page: 338

View: 6297

Describes the chemistry, structure, and function of polyphenol oxidase. Covers the molecular biology of polyphenol oxidase. Describes the chemistry of enzymatic browning. Provides practical methods for preventing enzymatic browning in fruit and vegetable products. Valuable reading for chemists, molecular biologists, food scientists, and food technologists.

Bioremediation Through Rhizosphere Technology

Author: Todd A. Anderson,Joel R. Coats

Publisher: Amer Chemical Society


Category: Science

Page: 249

View: 786

The first compilation of research on microbial degradation of contaminants in the rhizosphere. Discusses the interactions between microorganisms, plants, and chemicals in the rhizosphere. Examines the degradation of industrial chemicals, including polycyclic aromatic hydrocarbons, pentachlorophenol, and trichloroethylene, as well as the degradation of pesticides in the rhizosphere. Two review chapters provide overviews of bioremediation and rhizosphere microbiology.

Biorational pest control agents

formulation and delivery

Author: Franklin R. Hall,John Willard Barry,American Chemical Society. Division of Agrochemicals,American Chemical Society. Meeting

Publisher: N.A


Category: Technology & Engineering

Page: 306

View: 9493

Offers a multi-discipline focus on new and emerging pest control technology. Identifies critical needs of formulation and novel delivery systems for the baculoviruses, bacteria, fungi, pheromones, hormones, and nematodes which are being advocated for agricultural and forest pest management strategies. Provides a reference for biorational agents currently used to control agricultural and forestry pests. Addresses the registration and data requirements for environmental pest control agents.

Beta -glucosidases

Biochemistry and Molecular Biology

Author: Asim Esen,American Chemical Society. Meeting

Publisher: Amer Chemical Society


Category: Medical

Page: 259

View: 3674

Offers an overview of the state-of-the-art and future research needs for *b-glucosidases. Provides coverage of *b-glucosidases from the entire spectrum of organisms, including humans and mammals, plants, insects, fungi, and bacteria. Includes chapters on the mechanism of catalysis by *b-glucosidases, substrate specificity and physiological substrates of *b-glucosidases, and cyanogenic *b-glucosidases and glucosides from plants and insects. Reviews human *b-glucosidases in relation to metabolism, foods and nutrition, and an inherited disorder. Also describes a model system using immobilized enzymes to convert cellulose to glucose.

Laser chemistry of organometallics

developed from a symposium sponsored by the Division of Physical Chemistry and the Division of Inorganic Chemistry, Inc. at the 203rd National Meeting of the American Chemical Society, San Francisco, California, April 5-10, 1992

Author: J. Chaiken,American Chemical Society. Division of Physical Chemistry,American Chemical Society. Division of Inorganic Chemistry,American Chemical Society. Meeting

Publisher: An American Chemical Society Publication


Category: Science

Page: 313

View: 9320

Examines single photon and multiphoton organometallic chemistry for a range of environments, including isolated molecules, molecules in the bulk gas, liquid, and solid phases, and molecules in clusters. Covers the dynamics of unimolecular dissociation and molecular collisions. Reviews such applications as the use of lasers for homogeneous photocatalysis, ultrafine particle production, III-V semiconductor growth, laser-driven chemical vapor deposition, and laser processing of metal-containing polymers. Describes state-of-the-art research strategies, ranging from the use of cryogenic liquid rare gases in synthetic and mechanistic studies to a variety of spectroscopic techniques.

Humic and Fulvic Acids

Isolation, Structure, and Environmental Role

Author: Jeffrey S. Gaffney,Nancy A. Marley,Sue B. Clark

Publisher: Amer Chemical Society


Category: Science

Page: 338

View: 6725

Presents molecular properties and sampling methods for humic and fulvic acids and organic colloids. Reviews chemical characterization and structural determination methods using IR, NMR, GC/MS, and fluorescence spectroscopy. Provides information on metal binding, including radionuclides. Describes the migration and transport of metals and radionuclides by humic and fulvic acids. Discusses interactions of organic pollutants with humic and fulvic acids.

Reductions in Organic Synthesis

Recent Advances and Practical Applications

Author: Ahmed F. Abdel-Magid

Publisher: Amer Chemical Society

ISBN: 9780841233812

Category: Science

Page: 228

View: 1521

Describes recent advances in reduction, including the use of boron- and aluminum-based hydride reagents, as well as catalytic hydrogenation methods. Reports applications of reduction procedures with emphasis on selectivity, ranging from chemoselective to enantioselective reductions. Offers chapters on different aspects of reduction and presents a complementary mix of academic and industrial research ranging from theory to practical applications. Includes an overview chapter with 200 references by Nobel laureate H.C. Brown that surveys the development of hydride reduction in organic chemistry over the past 60 years.

A Lifetime of Synergy with Theory and Experiment

Author: Andrew Streitwieser

Publisher: Amer Chemical Society


Category: Science

Page: 310

View: 9713

This lively autobiography begins with the neighborhood lots of New York where the author began experimenting with organic synthesis, resulting in his first publication while he was still living with his parents. Streitwieser traces his remarkable career from his early research in "wet" chemistry at Berkeley through his work on ab initio theoretical calculations and his "invention" of an entirely new series of compounds, the uranocenes, analogs to the ferrocenes.

Surfactant-enhanced Subsurface Remediation

Emerging Technologies

Author: David A. Sabatini,Robert C. Knox,Jeffrey H. Harwell

Publisher: Amer Chemical Society

ISBN: 9780841232259

Category: Science

Page: 300

View: 2167

This work is developed from a symposium sponsored by the Division of Environmental Chemistry Inc and the Division of Colloid and Surface Chemistry at the 207th National Meeting of the American Chemical Society held in San Diego, California, March 13-17, 1994. It provides thorough coverage of surfactant-based remediation technologies, in which there is a domestic and international interest. It includes contributions from academic and industrial researchers and regulatory personnel, and covers fundamental mechanistic studies to scale-up and process modelling and full-scale field implementation studies. The book also summarizes the technical, economic and sociopolitical issues affecting widespread implementation of these technologies.

Fritz Haber

Author: Dietrich Stoltzenberg

Publisher: Wiley-VCH


Category: Biography & Autobiography

Page: 669

View: 4564

The chemist Fritz Haber (1868-1934) was a genius, albeit a controversial is pioneering work in thermodynamics led to the industrial synthesis of ; for this achievement he was awarded the Nobel Prize in 1918. Haber's d activities in electrochemistry and other areas of physical chemistry sti chemical research in Germany. Together with his numerous contributions arch and his involvement in the politics of science, they exerted a form nd lasting influence on science in Germany. His burning ambition and passionate patriotism - which manifested itself xample, in his unwavering advocacy of chemical weapons - made the German itz Haber one of the most controversial figures of the twentieth century ailure of his marriages with Clara Immerwahr and Charlotte Nathan is an ion of the complicated side of Fritz Haber, whose life took a tragic tur his emigration in 1933. With this book Dietrich Stoltzenberg has provided the long-awaited compr e biography of Fritz Haber. He avails himself of countless sources, some ch have never been published, to draw up a detailed and fascinating pict Fritz Haber. The book is a 'must' for historians, scientists and everybo rested in the history of early twentieth century Germany.