Catalytic and Process Study of the Selective Hydrogenation of Acetylene and 1,3-Butadiene

Catalytic and Process Study of the Selective Hydrogenation of Acetylene and 1,3-Butadiene PDF Author: Ruijun Hou
Publisher: Springer
ISBN: 981100773X
Category : Science
Languages : en
Pages : 151

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Book Description
This thesis offers novel methods for catalyst and process design for the selective hydrogenation of acetylene and 1,3-butadiene. The author predicts the properties of supported Pd–Ni bimetallic catalysts using density functional theory (DFT) calculations and temperature-programmed desorption (TPD). The excellent correlation between model surfaces and supported catalysts demonstrates the feasibility of designing effective bimetallic catalysts for selective hydrogenation reactions. The author also proposes a method for designing non-precious metal catalysts to replace precious metals. She modifies the process of selective hydrogenation of acetylene by coupling the selective adsorption to the selective hydrogenation in the liquid phase, as a result of which the ethylene selectivity is greatly improved and heat transfer is greatly enhanced. Lastly, by analyzing the mechanism of liquid-phase hydrogenation, the author proposes a multi-stage slurry bed reactor for industrial applications.“/p>

Catalytic and Process Study of the Selective Hydrogenation of Acetylene and 1,3-Butadiene

Catalytic and Process Study of the Selective Hydrogenation of Acetylene and 1,3-Butadiene PDF Author: Ruijun Hou
Publisher: Springer
ISBN: 981100773X
Category : Science
Languages : en
Pages : 151

Get Book Here

Book Description
This thesis offers novel methods for catalyst and process design for the selective hydrogenation of acetylene and 1,3-butadiene. The author predicts the properties of supported Pd–Ni bimetallic catalysts using density functional theory (DFT) calculations and temperature-programmed desorption (TPD). The excellent correlation between model surfaces and supported catalysts demonstrates the feasibility of designing effective bimetallic catalysts for selective hydrogenation reactions. The author also proposes a method for designing non-precious metal catalysts to replace precious metals. She modifies the process of selective hydrogenation of acetylene by coupling the selective adsorption to the selective hydrogenation in the liquid phase, as a result of which the ethylene selectivity is greatly improved and heat transfer is greatly enhanced. Lastly, by analyzing the mechanism of liquid-phase hydrogenation, the author proposes a multi-stage slurry bed reactor for industrial applications.“/p>

Characterization of Solid Materials and Heterogeneous Catalysts

Characterization of Solid Materials and Heterogeneous Catalysts PDF Author: Michel Che
Publisher: John Wiley & Sons
ISBN: 3527645330
Category : Technology & Engineering
Languages : en
Pages : 1313

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Book Description
This two-volume book provides an overview of physical techniques used to characterize the structure of solid materials, on the one hand, and to investigate the reactivity of their surface, on the other. Therefore this book is a must-have for anyone working in fields related to surface reactivity. Among the latter, and because of its most important industrial impact, catalysis has been used as the directing thread of the book. After the preface and a general introduction to physical techniques by M. Che and J.C. Vedrine, two overviews on physical techniques are presented by G. Ertl and Sir J.M. Thomas for investigating model catalysts and porous catalysts, respectively. The book is organized into four parts: Molecular/Local Spectroscopies, Macroscopic Techniques, Characterization of the Fluid Phase (Gas and/ or Liquid), and Advanced Characterization. Each chapter focuses upon the following important themes: overview of the technique, most important parameters to interpret the experimental data, practical details, applications of the technique, particularly during chemical processes, with its advantages and disadvantages, conclusions.

Alkynes—Advances in Research and Application: 2012 Edition

Alkynes—Advances in Research and Application: 2012 Edition PDF Author:
Publisher: ScholarlyEditions
ISBN: 1481603493
Category : Medical
Languages : en
Pages : 110

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Book Description
Alkynes—Advances in Research and Application: 2012 Edition is a ScholarlyEditions™ eBook that delivers timely, authoritative, and comprehensive information about Alkynes. The editors have built Alkynes—Advances in Research and Application: 2012 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Alkynes in this eBook to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Alkynes—Advances in Research and Application: 2012 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.

Chemical Abstracts

Chemical Abstracts PDF Author:
Publisher:
ISBN:
Category : Chemistry
Languages : en
Pages : 2616

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Book Description


Handbook of Commercial Catalysts

Handbook of Commercial Catalysts PDF Author: Howard F. Rase
Publisher: CRC Press
ISBN: 9781420036541
Category : Science
Languages : en
Pages : 528

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Book Description
Despite the advances in understanding the phenomena that occur on a catalyst surface, much of the successful catalyst development and use continues to be half science and half art. The art resides in the practical knowledge of experts in the development and use of commercial catalysts-it comes with experience. Now the background needed to nurture the experience and inspire the art is collected along with the science into a single volume. Whether called upon to select or improve a catalyst, design a process, diagnose operating problems, or improve existing processes, the Handbook of Commercial Catalysts provides the information needed to form a basis for the task. It offers a starting point by providing a broad overview of 150 major commercial processes and the heterogeneous catalyst used for each. The author has arranged them according to specific reaction or reaction type, and supplies reference citations for deeper research. He offers valuable insghts-based on chemistry, thermodynamics, and surface science-that provide a framework for rational reasoning about catalyst performance. With data collected from the existing literature, from the in-house specialists of commercial vendors, and from his own extensive experience, the author discusses for each reaction: Product uses Chemistry Mechanism Catalyst type Catalyst suppliers and licensors Catalyst deactivation Catalyst regeneration Process units Process kinetics Armed with this information, the reader can begin rational analysis of an existing or planned reaction system and logically discuss catalyst characteristics and operations with technical representative of catalyst manufacturers and with colleagues.

Catalysis by Precious Metals, Past and Future

Catalysis by Precious Metals, Past and Future PDF Author: Marcela Martinez Tejada
Publisher: MDPI
ISBN: 3039287222
Category : Technology & Engineering
Languages : en
Pages : 204

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Book Description
The future of the precious metals is shiny and resistant. Although expensive and potentially replaceable by transition metal catalysts, precious metal implementation in research and industry shows potential. These metals catalyze oxidation and hydrogenation due to their dissociative behavior toward hydrogen and oxygen, dehydrogenation, isomerization, and aromatization, etc. The precious metal catalysts, especially platinum-based catalysts, are involved in a variety of industrial processes. Examples include Pt–Rh gauze for nitric acid production, the Pt/Al2O3 catalyst for cyclohexane and propylene production, and Pd/Al2O3 catalysts for petrochemical hydropurification reactions, etc. A quick search of the number of published articles in the last five years containing a combination of corresponding “metals” (Pt, Pd, Ru, Rh and Au) and “catalysts” as keywords indicates the importance of the Pt catalysts, but also the continuous increase in the contribution of Pd and Au. This Special Issue reveals the importance of precious metals in catalysis and focuses on mono- and bi-metallic formulations of any supported precious metals and their promotional catalytic effect of other transition metals. The application of precious metals in diverse reactions, either homogeneous or heterogeneous, and studies of the preparation, characterization, and applications of the supported precious metal catalysts, are presented.

Supported Metals in Catalysis

Supported Metals in Catalysis PDF Author: James Arthur Anderson
Publisher: World Scientific
ISBN: 184816677X
Category : Science
Languages : en
Pages : 581

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Book Description
With contributions from experts in supported metal catalysis, from both the industry and academia, this book presents the latest developments in characterization and application of supported metals in heterogeneous catalysis. In addition to a thorough and updated coverage of the traditional aspects of heterogeneous catalysis such as preparation, characterization and use in well-established technologies such as Naphtha reforming, the book also includes emerging areas where supported metal catalysis will make significant contributions in future developments, such as fuel cells and fine chemicals synthesis. The second edition of Supported Metals in Catalysis comes complete with new and updated chapters containing important summaries of research in a rapidly evolving field. Very few other books deal with this highly pertinent subject matter, and as such, it is a must-have for anyone working in the field of heterogeneous catalysis.

Catalytic Hydrogenation

Catalytic Hydrogenation PDF Author: L. Cervený
Publisher: Elsevier
ISBN: 0080960618
Category : Technology & Engineering
Languages : en
Pages : 705

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Book Description
The collection of contributions in this volume presents the most up-to-date findings in catalytic hydrogenation. The individual chapters have been written by 36 top specialists each of whom has achieved a remarkable depth of coverage when dealing with his particular topic. In addition to detailed treatment of the most recent problems connected with catalytic hydrogenations, the book also contains a number of previously unpublished results obtained either by the authors themselves or within the organizations to which they are affiliated.Because of its topical and original character, the book provides a wealth of information which will be invaluable not only to researchers and technicians dealing with hydrogenation, but also to all those concerned with homogeneous and heterogeneous catalysis, organic technology, petrochemistry and chemical engineering.

Heterogeneous Catalysts for Petrochemical Synthesis and Oil Refining

Heterogeneous Catalysts for Petrochemical Synthesis and Oil Refining PDF Author: Eduard Karakhanov
Publisher: Mdpi AG
ISBN: 9783036514307
Category : Science
Languages : en
Pages : 100

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Book Description
Heterogeneous catalysis is among the major solutions for cost-effective and sustainable industrial application and processing. The design and development of highly efficient and stable heterogeneous catalysts represent an emergent frontier for overcoming energy and environmental challenges. Many industrial petrochemical and oil refining processes are faced with new challenges that can be solved using heterogeneous catalysts. This book covers the most recent progress and advances in the field of heterogeneous catalysts based on mesoporous composites with embedded halloysite nanotubes covered with ruthenium nanoparticles for exhaustive aromatics hydrogenation, generated in situ and supported on zeolites' transition metal sulfides for the hydrocracking of the pyrolysis fuel oil and n-alkanes isomerization. This book also includes investigations of novel rhodium systems supported on FeCrAl composite for the coupling of pre-reforming and partial oxidation to liquefied petroleum gas processing into syngas. We have collected works devoted to the palladium catalysts based on porous aromatic frameworks and alumina for the hydrogenation of unsaturated compounds (alkynes, alkenes and dienes) and for the selective removal of acetylene from ethane-ethylene fractions.

Catalysis By Gold

Catalysis By Gold PDF Author: Geoffrey C Bond
Publisher: World Scientific
ISBN: 1908979852
Category : Science
Languages : en
Pages : 383

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Book Description
Gold has traditionally been regarded as inactive as a catalytic metal. However, the advent of nanoparticulate gold on high surface area oxide supports has demonstrated its high catalytic activity in many chemical reactions. Gold is active as a heterogeneous catalyst in both gas and liquid phases, and complexes catalyse reactions homogeneously in solution. Many of the reactions being studied will lead to new application areas for catalysis by gold in pollution control, chemical processing, sensors and fuel cell technology. This book describes the properties of gold, the methods for preparing gold catalysts and ways to characterise and use them effectively in reactions. The reaction mechanisms and reasons for the high activities are discussed and the applications for gold catalysis considered./a