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

Author: M. Aresta
Publisher: Springer Science & Business Media
ISBN: 9400906633
Category : Science
Languages : en
Pages : 449

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Book Description
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.

Author: M. Aresta
Publisher: Springer Science & Business Media
ISBN: 9401702454
Category : Science
Languages : en
Pages : 422

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Book Description
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.

Author: Michele Aresta
Publisher: John Wiley & Sons
ISBN: 9783527629923
Category : Science
Languages : en
Pages : 414

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Book Description
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.

Author: Robert A. Alberty
Publisher: John Wiley & Sons
ISBN: 0470036451
Category : Science
Languages : en
Pages : 482

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Book Description
Navigate the complexities of biochemical thermodynamics with Mathematica(r) Chemical reactions are studied under the constraints of constant temperature and constant pressure; biochemical reactions are studied under the additional constraints of pH and, perhaps, pMg or free concentrations of other metal ions. As more intensive variables are specified, more thermodynamic properties of a system are defined, and the equations that represent thermodynamic properties as a function of independent variables become more complicated. This sequel to Robert Alberty's popular Thermodynamics of Biochemical Reactions describes how researchers will find Mathematica(r) a simple and elegant tool, which makes it possible to perform complex calculations that would previously have been impractical. Biochemical Thermodynamics: Applications of Mathematica(r) provides a comprehensive and rigorous treatment of biochemical thermodynamics using Mathematica(r) to practically resolve thermodynamic issues. Topics covered include: * Thermodynamics of the dissociation of weak acids * Apparent equilibrium constants * Biochemical reactions at specified temperatures and various pHs * Uses of matrices in biochemical thermodynamics * Oxidoreductase, transferase, hydrolase, and lyase reactions * Reactions at 298.15K * Thermodynamics of the binding of ligands by proteins * Calorimetry of biochemical reactions Because Mathematica(r) allows the intermingling of text and calculations, this book has been written in Mathematica(r) and includes a CD-ROM containing the entire book along with macros that help scientists and engineers solve their particular problems.

Author: Martin M. Halmann
Publisher: CRC Press
ISBN: 1482227835
Category : Nature
Languages : en
Pages : 593

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Book Description
Any mention of the "greenhouse effect" tends to ignite controversy. While the rising atmospheric concentrations of greenhouse gases-especially carbon dioxide- are certainly among the most pressing issues today, theoretical and perceived consequences have been subject to conjecture and misinformation. That raging debate has obscured an important

Author: P. R. Shewry
Publisher: Cambridge University Press
ISBN: 9780521417617
Category : Medical
Languages : en
Pages : 366

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Book Description
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.

Author: Joseph M. DeSimone
Publisher: Oxford University Press, USA
ISBN: 0195154835
Category : Language Arts & Disciplines
Languages : en
Pages : 276

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Book Description
Annotation. Introduction, J. Young, J. DeSimone, and W. TumasPart I: Catalysis and Chemical Synthesis in CO21. Phase behavior and its effects on reactions in liquid and supercritical CO2, L.A. Blanchard et al. 2. Advances in homogeneous, heterogeneous and biphasic metal catalyzed reactions in dense phase carbon dioxide, T. Ikariya et al. 3. CO2 as a reactant and solvent in catalysis, T. Ikariya and R. Noyori4. Free radical chemistry in supercritical CO2, J.M. Tanko5. Fluorous phases and compressed carbon dioxide as alternative solvents for chemical synthesis: a comparison, W. Leitner6. Enzyme chemistry in carbon dioxide, R.L. Rodney and A.J. RussellPart II: Polymers in CO27. Solubility of polymers in CO2, M. McHugh8. Interfacial phenomena with CO2-soluble surfactants, K. Johnston et al. 9. Synthesis and characterization of polymers: From polymeric micelles to step growth polymerizations, J. Young and J. DeSimone10. Preparation and studies of polymer/polymer composites prepared using supercritical carbon dioxide, E. Kung, A.J. Lesser, and T.J. McCarthy11. Rheological properties of polymers modified with CO2, C.W. Manke and E. GulariPart III: Industrial Processes and Applications Utilizing CO212. Coatings from liquid and supercritical CO2, Y. Chernyak et al. 13. Dry cleaning with liquid CO2, G. Stewart14. Selective and complete hydrogenation of vegetable oils and free fatty acids in supercritical fluids, T. Tacke, S. Wieland, and P. Panster15. Supercritical CO2 enhancement of cemented materials, C. Taylor, J. Rubin, and B. Carey.

Author: Michele Aresta
Publisher: Springer
ISBN: 366246831X
Category : Science
Languages : en
Pages : 423

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Book Description
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.

Author: Alton Meister
Publisher: John Wiley & Sons
ISBN: 0470123915
Category : Science
Languages : en
Pages : 528

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Book Description
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.

Author: J P Pradier
Publisher: Elsevier
ISBN: 1782424938
Category : Science
Languages : en
Pages : 418

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Book Description
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.