Enzymatic and Model Carboxylation and Reduction Reactions for Carbon Dioxide Utilization

Enzymatic and Model Carboxylation and Reduction Reactions for Carbon Dioxide Utilization PDF

Author: M. Aresta

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 449

ISBN-13: 9400906633

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The activation of carbon dioxide by transition metal complexes has been extensively studied. both experimentally and theoretically. 1 Central reactions in this chemistry are the insertion of C02 into M-X bonds. where X = H. C. 0. and N. (eq. 1-4). We are presently investigating the mechanistic aspects of these reaction processes and will herein deSCribe our current level of understanding. Comparisons of the pathway of the carbon-carbon bond fonning process in transition metal chemistry with the well known analogous chemistry involving organolithium reagents will be presented. Furthermore. the role of these reaction types in both homogeneous and heterogenous catalytic processes leading to useful chemicals will be elaborated. _OM> (1) lMt-H + ~ lMlopi _OM> (2) [Mt-R + C0. 2 [M]0. 2CR _OM> (3) [Mt-OR+ ~ [M]0. 2COR _OM> (4) [Mt-NR2 + C0. 2 [M]~CNR2 Insertion of C02 into the Metal-Hydride Bond. The reaction of anionic group 6 (Cr. Mo. W) transition metal hydrides with carbon dioxide to afford metalloformates occurs readlly at ambient temperature and 2 reduced pressures of carbon dioxide. This insertion process is referred to the normal pathway (Scheme 1). There are no documented cases of C02 insertion into the metal hydride bond to provide the alternative. metallocarboxylic acid. isomer (referred in Scheme 1 as abnormal). 3 Recent theoretical studies ascribe this preference to an unfavorable electrostatic interaction and poorer orbital overlap in the latter pro 4 cess. Nevertheless.

Carbon Dioxide Recovery and Utilization

Carbon Dioxide Recovery and Utilization PDF

Author: M. Aresta

Publisher: Springer Science & Business Media

Published: 2013-06-29

Total Pages: 422

ISBN-13: 9401702454

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Carbon Dioxide Recovery and Utilization is a complete and informative resource on the carbon dioxide sources and market at the European Union level, with reference to the world situation. The book covers the following themes: - Sources of carbon dioxide and their purity, - Market of carbon dioxide and its uses, - Separation techniques of carbon dioxide from flue gases, - Analysis of the potential of each technique and application, - Basic science and technology of supercritical CO2, - Reactions in supercritical CO2 and its use as reactive solvent, - Utilization of CO2 in the synthesis of chemicals with low energy input, - Conversion of CO2 into fuels: existing techniques, - Dry reforming of methane, - Assessment of the use of carbon dioxide for the synthesis of methanol. This book is unique in providing integrated information and a perspective on innovative technologies for the use of carbon dioxide. The book is suitable for use as a textbook for courses in chemical engineering and chemistry. It is also of great interest as a general reference for those involved with technologies for avoiding carbon dioxide production and for economists. This is an invaluable reference for specialists on synthetic chemistry, gas separation, supercritical fluids, carbon dioxide marketing, renewable energy and sustainable development. In addition, it will be useful for those working in the chemical industry and for policy makers for carbon dioxide mitigation, innovative technologies, carbon recycling, and power generation.

Carbon Dioxide as Chemical Feedstock

Carbon Dioxide as Chemical Feedstock PDF

Author: Michele Aresta

Publisher: John Wiley & Sons

Published: 2010-01-26

Total Pages: 414

ISBN-13: 9783527629923

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Filling the need for an up-to-date handbook, this ready reference closely investigates the use of CO2 for ureas, enzymes, carbamates, and isocyanates, as well as its use as a solvent, in electrochemistry, biomass utilization and much more. Edited by an internationally renowned and experienced researcher, this is a comprehensive source for every synthetic chemist in academia and industry.

Transformation and Utilization of Carbon Dioxide

Transformation and Utilization of Carbon Dioxide PDF

Author: Bhalchandra M. Bhanage

Publisher: Springer Science & Business Media

Published: 2014-01-27

Total Pages: 390

ISBN-13: 3642449883

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Transformation and Utilization of Carbon Dioxide shows the various organic, polymeric and inorganic compounds which result from the transformation of carbon dioxide through chemical, photocatalytic, electrochemical, inorganic and biological processes. The book consists of twelve chapters demonstrating interesting examples of these reactions, depending on the types of reaction and catalyst. It also includes two chapters dealing with the utilization of carbon dioxide as a reaction promoter and presents a wide range of examples of chemistry and chemical engineering with carbon dioxide. Transformation and Utilization of Carbon Dioxide is a collective work of reviews illustrative of recent advances in the transformation and utilization of carbon dioxide. This book is interesting and useful to a wide readership in the various fields of chemical science and engineering. Bhalchandra Bhanage is a professor of industrial and engineering chemistry at Institute of Chemical Technology, India. Masahiko Arai is a professor of chemical engineering at Hokkaido University, Japan.

Plant Protein Engineering

Plant Protein Engineering PDF

Author: P. R. Shewry

Publisher: Cambridge University Press

Published: 1992-08-20

Total Pages: 366

ISBN-13: 9780521417617

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This first volume of the plant and microbial biotechnology series introduces the concepts and potential of plant protein engineering and gives an account of current research in the field. An essential purchase for academic and industrial research institutions and professional biotechnologists.

Reaction Mechanisms in Carbon Dioxide Conversion

Reaction Mechanisms in Carbon Dioxide Conversion PDF

Author: Michele Aresta

Publisher: Springer

Published: 2015-11-07

Total Pages: 423

ISBN-13: 366246831X

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This book provides an analysis of the reaction mechanisms relevant to a number of processes in which CO2 is converted into valuable products. Several different processes are considered that convert CO2 either in specialty chemicals or in bulk products or fuels. For each reaction, the mechanism is discussed and the assessed steps besides the dark sites of the reaction pathway are highlighted. From the insertion of CO2 into E-X bonds to the reduction of CO2 to CO or other C1 molecules or else to C2 or Cn molecules, the reactions are analysed in order to highlight the known and obscure reaction steps. Besides well known reaction mechanisms and energy profiles, several lesser known situations are discussed. Advancing knowledge of the latter would help to develop efficient routes for the conversion of CO2 into valuable products useful either in the chemical or in the energy industry. The content of this book is quite different from other books reporting the use of CO2. On account of its clear presentation, “Reaction Mechanisms in Carbon Dioxide Conversion” targets in particular researchers, teachers and PhD students.

Advances in Enzymology and Related Areas of Molecular Biology

Advances in Enzymology and Related Areas of Molecular Biology PDF

Author: Alton Meister

Publisher: John Wiley & Sons

Published: 2009-09-15

Total Pages: 528

ISBN-13: 0470123915

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Advances in Enzymology and Related Areas of Molecular Biology is a seminal series in the field of biochemistry, offering researchers access to authoritative reviews of the latest discoveries in all areas of enzymology and molecular biology. These landmark volumes date back to 1941, providing an unrivaled view of the historical development of enzymology. The series offers researchers the latest understanding of enzymes, their mechanisms, reactions and evolution, roles in complex biological process, and their application in both the laboratory and industry. Each volume in the series features contributions by leading pioneers and investigators in the field from around the world. All articles are carefully edited to ensure thoroughness, quality, and readability. With its wide range of topics and long historical pedigree, Advances in Enzymology and Related Areas of Molecular Biology can be used not only by students and researchers in molecular biology, biochemistry, and enzymology, but also by any scientist interested in the discovery of an enzyme, its properties, and its applications.

Green Chemistry Using Liquid and Supercritical Carbon Dioxide

Green Chemistry Using Liquid and Supercritical Carbon Dioxide PDF

Author: Joseph M. DeSimone

Publisher: Oxford University Press

Published: 2003-11-20

Total Pages: 288

ISBN-13: 0190288612

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Chemists have been researching the potential of liquid and supercritical carbon dioxide for environmentally safe applications. This edited volume will cover the various applications of using these forms of carbon dioxide. The three main areas of focus are catalysis and chemical synthesis in CO2, polymers in CO2, and industrial processes and applications utilizing CO2. The book is aimed at researchers in academia and industry, and the contributors are all experts in the field.

Carbon Dioxide Chemistry

Carbon Dioxide Chemistry PDF

Author: J P Pradier

Publisher: Elsevier

Published: 2014-03-14

Total Pages: 418

ISBN-13: 1782424938

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This book derives from a workshop held in Sweden to examine the environmental implications of the dramatic increase in carbon dioxide levels in the atmosphere in the last 50 years and to find ways of mitigating greenhouse gas emissions. This multi-disciplinary approach makes it essential reading not only for chemists but for all engineers, biologists and environmentalists concerned with this crucially important issue.

Environmental Challenges and Greenhouse Gas Control for Fossil Fuel Utilization in the 21st Century

Environmental Challenges and Greenhouse Gas Control for Fossil Fuel Utilization in the 21st Century PDF

Author: M. Mercedes Maroto-Valer

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 436

ISBN-13: 1461507731

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As we are moving ahead into the 21st century, our hunger for cost effective and environmentally friendly energy continues to grow. The Energy Information Administration of US has forecasted that only in the first two decades of the 21st century, our energy demand will increase by 60% compared to the levels at the end of the 20th century. Fossil fuels have been traditionally the major primary energy sources worldwide, and their role is expected to continue growing for the forecasted period, due to their inherent cost competitiveness compared to non-fossil fuel energy sources. However, the current fossil energy scenario is undergoing significant transformations, especially to accommodate increasingly stringent environmental challenges of contaminants like sulfur dioxide, nitrogen oxides or mercury, while still providing affordable energy. Furthermore, traditional fossil fuel utilization is inherently plagued with greenhouse gas emissions from combustion, especially carbon dioxide from stationary sources as well as from mobile sources. Should worldwide government policies dictate a reduction of greenhouse gas emissions, such as proposed by the Kyoto Protocol and the implementation of carbon taxes, fossil fuels would lose their significant competitive appeal in favor of nuclear energy and renewable energy sources. However, the current non-fossil fuel energy share of the worldwide energy market is merely below 15%, and therefore, it is more likely that fossil fuel energy producers would adapt to the new requirements by developing and implementing emission control technologies, and emission trades among other strategies.