Kinetics of Multistep Reactions

Kinetics of Multistep Reactions PDF Author: Friedrich G. Helfferich
Publisher: Elsevier
ISBN: 0080473180
Category : Science
Languages : en
Pages : 508

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Book Description
This book addresses primarily the engineer in industrial process development, the research chemist in academia and industry, and the graduate student intending to become a reaction engineer. In industry, competitive pressures put a premium on scale-up by large factors to cut development time. To be safe, such development should be based on "fundamental" kinetics that reflect the elementary steps of which the reaction consists. The book forges fundamental kinetics into a practical tool by presenting new, effective methods for elucidation of mechanisms and reduction of complexity without unacceptable sacrifice in accuracy: fewer equations (lesser computational load), fewer coefficients (fewer experiment to determine them). For network elucidation, new rules relating network configurations to observable kinetic behaviour allow incorrect networks to be ruled out by whole classes instead of one by one. For modelling, general equations and algorithms are given from which equations for specific networks can be recovered by simple substitutions. The procedures are illustrated with examples of industrial reactions including, among others, paraffin oxidation, ethoxylation, hydroformylation, hydrocyanation, shape-selective catalysis, ethane pyrolysis, styrene polymerization, and ethene oligomerization. Many of the rate equations have not been published before. The expanded edition of the 2001 title, Kinetics of Homogeneous Multistep Reactions includes new chapters on heterogeneous catalysis and periodic and chaotic re-actions; new sections on adsorption, statistical methods, and lumping; and other new detail. - Contains new chapters on heterogeneous catalysis, oscillations and chaos - Includes new sections on statistical methods, lumping adsorption and software and databases - Provides a better understanding of complex reaction mechanisms

Kinetics of Multistep Reactions

Kinetics of Multistep Reactions PDF Author: Friedrich G. Helfferich
Publisher: Elsevier
ISBN: 0080473180
Category : Science
Languages : en
Pages : 508

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Book Description
This book addresses primarily the engineer in industrial process development, the research chemist in academia and industry, and the graduate student intending to become a reaction engineer. In industry, competitive pressures put a premium on scale-up by large factors to cut development time. To be safe, such development should be based on "fundamental" kinetics that reflect the elementary steps of which the reaction consists. The book forges fundamental kinetics into a practical tool by presenting new, effective methods for elucidation of mechanisms and reduction of complexity without unacceptable sacrifice in accuracy: fewer equations (lesser computational load), fewer coefficients (fewer experiment to determine them). For network elucidation, new rules relating network configurations to observable kinetic behaviour allow incorrect networks to be ruled out by whole classes instead of one by one. For modelling, general equations and algorithms are given from which equations for specific networks can be recovered by simple substitutions. The procedures are illustrated with examples of industrial reactions including, among others, paraffin oxidation, ethoxylation, hydroformylation, hydrocyanation, shape-selective catalysis, ethane pyrolysis, styrene polymerization, and ethene oligomerization. Many of the rate equations have not been published before. The expanded edition of the 2001 title, Kinetics of Homogeneous Multistep Reactions includes new chapters on heterogeneous catalysis and periodic and chaotic re-actions; new sections on adsorption, statistical methods, and lumping; and other new detail. - Contains new chapters on heterogeneous catalysis, oscillations and chaos - Includes new sections on statistical methods, lumping adsorption and software and databases - Provides a better understanding of complex reaction mechanisms

Kinetics of Homogeneous Multistep Reactions

Kinetics of Homogeneous Multistep Reactions PDF Author: Friedrich G. Helfferich
Publisher: Elsevier
ISBN: 0080535267
Category : Technology & Engineering
Languages : en
Pages : 427

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Book Description
This book addresses primarily the chemist and engineer in industrial research and process development, where competitive pressures put a premium on scale-up by large factors to cut development time. To be safe, such scale-up should be based on "fundamental" kinetics, that is, mathematics that reflect the elementary steps of which the reactions consist. The book forges fundamental kinetics into a practical tool by presenting new effective methods for elucidation of mechanisms and reduction of mathematical complexity without unacceptable sacrifice in accuracy.

Chemical Kinetics with Mathcad and Maple

Chemical Kinetics with Mathcad and Maple PDF Author: Viktor Korobov
Publisher: Springer Science & Business Media
ISBN: 3709105315
Category : Science
Languages : en
Pages : 353

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Book Description
The authors explain at length the principles of chemical kinetics and approaches to computerized calculations in modern software suites — mathcad and maple. Mathematics is crucial in determining correlations in chemical processes and requires various numerical approaches. Often significant issues with mathematical formalizations of chemical problems arise and many kinetic problems can ́t be solved without computers. Numerous problems encountered in solving kinetics ́ calculations with detailed descriptions of the numerical tools are given. Special attention is given to electrochemical reactions, which fills a gap in existing texts not covering this topic in detail. The material demonstrates how these suites provide quick and precise behavior predictions for a system over time (for postulated mechanisms).Examples, i.e., oscillating and non-isothermal reactions, help explain the use of mathcad more efficiently. Also included are the results of authors’ own research toward effective computations.

Reaction Rate Theory and Rare Events

Reaction Rate Theory and Rare Events PDF Author: Baron Peters
Publisher: Elsevier
ISBN: 0444594701
Category : Technology & Engineering
Languages : en
Pages : 636

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Book Description
Reaction Rate Theory and Rare Events bridges the historical gap between these subjects because the increasingly multidisciplinary nature of scientific research often requires an understanding of both reaction rate theory and the theory of other rare events. The book discusses collision theory, transition state theory, RRKM theory, catalysis, diffusion limited kinetics, mean first passage times, Kramers theory, Grote-Hynes theory, transition path theory, non-adiabatic reactions, electron transfer, and topics from reaction network analysis. It is an essential reference for students, professors and scientists who use reaction rate theory or the theory of rare events. In addition, the book discusses transition state search algorithms, tunneling corrections, transmission coefficients, microkinetic models, kinetic Monte Carlo, transition path sampling, and importance sampling methods. The unified treatment in this book explains why chemical reactions and other rare events, while having many common theoretical foundations, often require very different computational modeling strategies. - Offers an integrated approach to all simulation theories and reaction network analysis, a unique approach not found elsewhere - Gives algorithms in pseudocode for using molecular simulation and computational chemistry methods in studies of rare events - Uses graphics and explicit examples to explain concepts - Includes problem sets developed and tested in a course range from pen-and-paper theoretical problems, to computational exercises

CK-12 Chemistry - Second Edition

CK-12 Chemistry - Second Edition PDF Author: CK-12 Foundation
Publisher: CK-12 Foundation
ISBN: 1935983490
Category : Science
Languages : en
Pages : 995

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Book Description
CK-12 Foundation's Chemistry - Second Edition FlexBook covers the following chapters:Introduction to Chemistry - scientific method, history.Measurement in Chemistry - measurements, formulas.Matter and Energy - matter, energy.The Atomic Theory - atom models, atomic structure, sub-atomic particles.The Bohr Model of the Atom electromagnetic radiation, atomic spectra. The Quantum Mechanical Model of the Atom energy/standing waves, Heisenberg, Schrodinger.The Electron Configuration of Atoms Aufbau principle, electron configurations.Electron Configuration and the Periodic Table- electron configuration, position on periodic table.Chemical Periodicity atomic size, ionization energy, electron affinity.Ionic Bonds and Formulas ionization, ionic bonding, ionic compounds.Covalent Bonds and Formulas nomenclature, electronic/molecular geometries, octet rule, polar molecules.The Mole Concept formula stoichiometry.Chemical Reactions balancing equations, reaction types.Stoichiometry limiting reactant equations, yields, heat of reaction.The Behavior of Gases molecular structure/properties, combined gas law/universal gas law.Condensed Phases: Solids and Liquids intermolecular forces of attraction, phase change, phase diagrams.Solutions and Their Behavior concentration, solubility, colligate properties, dissociation, ions in solution.Chemical Kinetics reaction rates, factors that affect rates.Chemical Equilibrium forward/reverse reaction rates, equilibrium constant, Le Chatelier's principle, solubility product constant.Acids-Bases strong/weak acids and bases, hydrolysis of salts, pHNeutralization dissociation of water, acid-base indicators, acid-base titration, buffers.Thermochemistry bond breaking/formation, heat of reaction/formation, Hess' law, entropy, Gibb's free energy. Electrochemistry oxidation-reduction, electrochemical cells.Nuclear Chemistry radioactivity, nuclear equations, nuclear energy.Organic Chemistry straight chain/aromatic hydrocarbons, functional groups.Chemistry Glossary

Chemical and Catalytic Reaction Engineering

Chemical and Catalytic Reaction Engineering PDF Author: James J. Carberry
Publisher: Courier Corporation
ISBN: 9780486417363
Category : Technology & Engineering
Languages : en
Pages : 676

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Book Description
Designed to give chemical engineers background for managing chemical reactions, this text examines the behavior of chemical reactions and reactors; conservation equations for reactors; heterogeneous reactions; fluid-fluid and fluid-solid reaction systems; heterogeneous catalysis and catalytic kinetics; diffusion and heterogeneous catalysis; and analyses and design of heterogeneous reactors. 1976 edition.

Rates of Soil Chemical Processes

Rates of Soil Chemical Processes PDF Author: Donald L. Sparks
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 328

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Book Description
Kinetics of soil chemical reactions. Methods of obtaining and analyzin kinetic data. Relaxation methods for studying kinetics of soil chemical phenomena. Kinetics of ion sorptionon humic substances. Kinetics of sorption/desorption processes in soils. Modelling nonequilibrium reactions of inorganic solutes in soil columns. Sorption kinetics of organic chemicals: methods, models, and mechanisms.

Fundamentals of Electrochemical Deposition

Fundamentals of Electrochemical Deposition PDF Author: Milan Paunovic
Publisher: John Wiley & Sons
ISBN: 047000939X
Category : Science
Languages : en
Pages : 388

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Book Description
Excellent teaching and resource material . . . it is concise, coherently structured, and easy to read . . . highly recommended for students, engineers, and researchers in all related fields." -Corrosion on the First Edition of Fundamentals of Electrochemical Deposition From computer hardware to automobiles, medical diagnostics to aerospace, electrochemical deposition plays a crucial role in an array of key industries. Fundamentals of Electrochemical Deposition, Second Edition is a comprehensive introduction to one of today's most exciting and rapidly evolving fields of practical knowledge. The most authoritative introduction to the field so far, the book presents detailed coverage of the full range of electrochemical deposition processes and technologies, including: * Metal-solution interphase * Charge transfer across an interphase * Formation of an equilibrium electrode potential * Nucleation and growth of thin films * Kinetics and mechanisms of electrodeposition * Electroless deposition * In situ characterization of deposition processes * Structure and properties of deposits * Multilayered and composite thin films * Interdiffusion in thin film * Applications in the semiconductor industry and the field of medicine This new edition updates the prior edition to address the new developments in the science and its applications, with new chapters on innovative applications of electrochemical deposition in semiconductor technology, magnetism and microelectronics, and medical instrumentation. Added coverage includes such topics as binding energy, nanoclusters, atomic force, and scanning tunneling microscopy.Example problems at the end of chapters and other features clarify and improve understanding of the material. Written by an author team with extensive experience in both industry and academe, this reference and text provides a well-rounded introduction to the field for students, as well as a means for professional chemists, engineers, and technicians to expand and sharpen their skills in using the technology.

The Art of Writing Reasonable Organic Reaction Mechanisms

The Art of Writing Reasonable Organic Reaction Mechanisms PDF Author: Robert B. Grossman
Publisher: Springer Science & Business Media
ISBN: 0387954686
Category : Science
Languages : en
Pages : 371

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Book Description
Intended for students of intermediate organic chemistry, this text shows how to write a reasonable mechanism for an organic chemical transformation. The discussion is organized by types of mechanisms and the conditions under which the reaction is executed, rather than by the overall reaction as is the case in most textbooks. Each chapter discusses common mechanistic pathways and suggests practical tips for drawing them. Worked problems are included in the discussion of each mechanism, and "common error alerts" are scattered throughout the text to warn readers about pitfalls and misconceptions that bedevil students. Each chapter is capped by a large problem set.

Chemistry of Hydrocarbon Combustion

Chemistry of Hydrocarbon Combustion PDF Author: David. Hucknall
Publisher: Springer Science & Business Media
ISBN: 9400948522
Category : Science
Languages : en
Pages : 423

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Book Description
The scientific and economic importance of the high-temperature reactions of hydrocarbons in both the presence and absence of oxygen cannot be overemphasized. A vast chemical industry exists based on feedstocks produced by the controlled pyrolysis of hydrocarbons, while uncontrolled combustion in air is still among the most important sources of heat and mechanical energy. The detonation and explosion of hydrocarbon-oxidant mixtures can however, be a highly dangerous phenomenon which destroys lives and equipment. In order that control can be exerted over combustion processes, a complete description of hydrocarbon oxidation and pyrolysis is required. A major contribution to this is an understanding of the unstable intermediates involved and their reactions. The aim of this book is to review our knowledge of the chemistry of hydrocarbon combustion and to consider the data which are available for relevant reactions. Chapter 1 describes early studies in which the apparent complexity of the chemistry was established and the type of information required for a better understanding was defined. Experimental studies of the overall process which were carried out with the aim of establishing the sequence of stable chemical intermediates and some of the unstable species are described in Chapter 2. The limited nature of the information thus obtained showed that independent studies of individual reactions involving the unstable species were required. In Chapter 3 investigations specifically aimed at the determination of the kinetics of elementary reactions are discussed.