pyrolysis of organic molecules

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Pyrolysis of Organic Molecules
Author : Serban C. Moldoveanu
Publisher : Elsevier
Release Date : 2018-11-14
ISBN 10 : 0444640010
Pages : 816 pages
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Pyrolysis of Organic Molecules: Applications to Health and Environmental Issues, Second Edition offers a systematic presentation of pyrolysis results for the main classes of non-polymeric organic molecules. It covers a large body of data published on pyrolysis, as well as numerous original contributions to the pyrolysis of compounds not previously studied. This thoroughly revised edition contains new results reported in the literature since the first edition published, including the generation of traces of toxic compounds in various pyrolytic processes; the pyrolysis in the presence of catalysts and solid supports such as alumina, silica, and non-inert metals; and pyrolysis of specific mixtures of compound such as amino acids plus carbohydrates. This new information regarding the pyrolysis of these mixtures has greatly improved the utility of the book, making Pyrolysis of Organic Molecules an essential resource for chemists and chemical engineers involved in processes related to pyrolysis, as well as toxicologists and environmentalists. Presents new information on the pyrolysis of specific compounds Includes data on the mechanisms and kinetics of pyrolytic processes Provides data on the influence of catalysts and solid supports on pyrolytic processes

Pyrolysis of Organic Molecules
Author : Serban C. Moldoveanu
Publisher : Elsevier Science
Release Date : 2009-10-16
ISBN 10 : 9780444531131
Pages : 744 pages
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Pyrolysis of Organic Molecules with Applications to Health and Environmental Issues, the 28th volume in the Techniques and Instrumentation in Analytical Chemistry series, gives a systematic and comprehensive description of pyrolysis of non-polymeric organic molecules. Pyrolysis is involved in many practical applications as well as in many common human activities, but harmful compounds can be generated in the process. The study of pyrolysis and of the formation of undesirable compounds as a result of pyrolytic processes is of considerable interest to chemists, chemical engineers, and toxicologists. Pyrolysis results for compounds not previously studied or reported Updated information from a large body of results published on pyrolysis of individual compounds or classes of compounds Information on mechanisms and kinetics of numerous pyrolytic processes

Pyrolysis of Organic Molecules
Author : Serban C. Moldoveanu
Publisher : Elsevier
Release Date : 2009-09-16
ISBN 10 : 9780080932156
Pages : 744 pages
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Pyrolysis of Organic Molecules with Applications to Health and Environmental Issues, the 28th volume in the Techniques and Instrumentation in Analytical Chemistry series, gives a systematic and comprehensive description of pyrolysis of non-polymeric organic molecules. Pyrolysis is involved in many practical applications as well as in many common human activities, but harmful compounds can be generated in the process. The study of pyrolysis and of the formation of undesirable compounds as a result of pyrolytic processes is of considerable interest to chemists, chemical engineers, and toxicologists. Pyrolysis results for compounds not previously studied or reported Updated information from a large body of results published on pyrolysis of individual compounds or classes of compounds Information on mechanisms and kinetics of numerous pyrolytic processes

The Gas-phase Pyrolysis of Organic Molecules
Author : Z. H. Shirazi
Publisher : N.A
Release Date : 1973
ISBN 10 :
Pages : 329 pages
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Pyrolysis of Organic Molecules Relevant to Combustion as Monitored by Photoionization Time-of-flight Mass Spectrometry
Author : Kevin Howard Weber
Publisher : N.A
Release Date : 2010
ISBN 10 :
Pages : 226 pages
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Flash pyrolysis coupled to molecular beam extraction and single photon ionization time-of-flight mass spectrometry along with quantum chemical calculations are employed to study the pyrolysis of organic molecules with relevance to combustion processes. Branching ratios for the molecular elimination and bond fission pathways was achieved for ethyl and propyl iodides providing information about the nature of the mechanism with relation to chemical structure. Similarly, the decompositions of a series of alkyl methyl ethers, whose anti-knock ability in commercial fuels is attributed to the molecular elimination pathway, was investigated to examine the competition of primary and subsequent homolyses at higher temperatures, which tend to promote "knock". The isomerization/decomposition of isoprene was looked at in detail with special attention to the formation of soot precursor, most notably the "first ring" benzene. Cyclopentadiene and methylcyclopentadiene are known to be highly sooting fuels and were pyrolyzed to study the initial steps in aromatization. The pyrolysis of cyclohexene, cyclopentene, and 1,4-cyclohexadiene were conducted to facilitate interpretation of aromatic formation and to compare experimental results with well established mechanisms. Finally, the pyrolysis of methylcyclohexane, an important component some jet fuels, was studied.

The Manhunters
Author : Dean Edwards
Publisher : Ulverscroft
Release Date : 2006
ISBN 10 : 9781846173943
Pages : 220 pages
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Young cowboy Clu Marvin finishes a routine cattle drive in McCoy and sets out to enjoy his pay with a couple of pals. He had no idea that, from his wanted poster, keen-eyed Sheriff Dan Brown has spotted Marvin's resemblance to the notorious outlaw the Reno Kid.

The High Temperature Pyrolysis of Simple Organic Molecules and the Formation of C2
Author : Alastair R. Fairbairn,AVCO EVERETT RESEARCH LAB EVERETT MASS.,Avco-Everett Research Laboratory
Publisher : N.A
Release Date : 1968
ISBN 10 :
Pages : 37 pages
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The high temperature pyrolysis of simple organic molecules, CH4, CCl4, CF4 and C2H2 has been studied in a shock tube. Under conditions where the final equilibrium composition is almost entirely atomic, the C2 molecule is observed to rise to a peak and thereafter decline, apparently at the same rate as the original compound is decomposing. Absolute intensity measurements on the peak C2 yield indicate that as much as 20% of the carbon atoms can form C2. By following the decay of the C2, the overall rates of decomposition of the organic materials have been obtained. The formation of C2 can be explained in terms of the reaction type CX + C yielding C2 + X. (Author).

Analytical Pyrolysis of Natural Organic Polymers
Author : S.C. Moldoveanu
Publisher : Elsevier
Release Date : 1998-11-11
ISBN 10 : 9780080527161
Pages : 510 pages
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Analytical pyrolysis is one of the many tools utilized for the study of natural organic polymers. This books describes in three parts the methodology of analytical pyrolysis, the results of pyrolysis for a variety of biopolymers, and several practical applications of analytical pyrolysis on natural organic polymers and their composite materials. Analytical pyrolysis methodology covers two distinct subjects, the instrumentation used for pyrolysis and the analytical methods that are applied for the analysis of the pyrolysis products. A variety of pyrolytic techniques and of analytical instruments commonly coupled with pyrolysis devices are given. The description of the results of pyrolysis for biopolymers and some chemically modified natural organic polymers is the core of the book. The main pyrolysis products of numerous compounds as well as the proposed mechanisms for their pyrolysis are described. In this part an attempt is made to present as much as possible the chemistry of the pyrolytic process of natural organic polymers. The applications of analytical pyrolysis include topics such as polymer detection used for example in forensic science, structure elucidation of specific polymers, and identification of small molecules present in polymers (anti-oxidants, plasticizers, etc.). Also, the degradation during heating is a subject of major interest in many practical applications regarding the physical properties of polymers. The applications to composite polymeric materials are in the fields of classification of microorganisms, study of a variety of biological samples, study of fossil materials, etc. Analytical pyrolysis can also be used for obtaining information on the burning area generate pyrolysates that have complex compositions. Their analysis is important in connection with health issues, environmental problems, and taste of food and cigarettes. Features of this book: • Presents analytical pyrolysis as a uniform subject and not as a conglomerate of scientific papers. • Puts together in an organized manner a large volume of available information in this specific field. • Provides original results which address subjects with relatively scarce information in literature. • Gives original views on subjects such as the parallel between the pyrolytic process and the ion fragmentation in mass spectrometry. • Includes the role of pyrolysis in the burning process. The three parts of the book are covered in 18 chapters, each divided into sections. Some sections are further divided by particular subjects. References are given for each chapter, and an effort has been made to include as much as possible from the available representative information. A few unpublished personal results are also included.

Pyrolysis of Simple Organic Molecules by Gas Chromatography
Author : Thomas Wolf
Publisher : N.A
Release Date : 1966
ISBN 10 :
Pages : 732 pages
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Kinetic Studies of the Pyrolysis of Ethane and Other Organic Molecules in the Presence of Nitrous Oxide
Author : Ronald Kenwright
Publisher : N.A
Release Date : 1958
ISBN 10 :
Pages : 329 pages
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Analytical Pyrolysis of Synthetic Organic Polymers
Author : Serban C. Moldoveanu
Publisher : Elsevier
Release Date : 2005-01-20
ISBN 10 : 9780080455860
Pages : 714 pages
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Analytical Pyrolysis of Synthetic Organic Polymers is a follow-up to Analytical Pyrolysis of Natural Organic Polymers, which is volume 20 of the series. The main focus of the book is on practical applications of analytical pyrolysis in synthetic organic polymer identification and characterization. The first part of the book has five chapters including an introduction, a discussion on physico-chemistry of thermal degradation of synthetic polymers and on instrumentation used in analytical pyrolysis, a chapter discussing what type of information can be obtained from analytical pyrolysis, and a chapter dedicated to the analysis and characterization of synthetic polymers. The second part systematically covers the analytical pyrolysis of various classes of synthetic polymers. Some theoretical background for the understanding of polymer structure using analytical pyrolysis is also discussed. * Includes broad coverage of organic synthetic macromolecules * Focuses on physico-chemistry of thermal degradation, and the analytical pyrolysis of various classes of synthetic polymers * Is well written and suitable for both researchers and chemists working in analytical chemistry or in synthetic polymers

Studies in the Pyrolysis of Organic Compounds
Author : John Austin Meyer
Publisher : N.A
Release Date : 1958
ISBN 10 :
Pages : 276 pages
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Pyrolysis of Organic Compounds Containing Long Unbranched Alkyl Groups
Author : George W. Mushrush,Robert N. Hazlett,NAVAL RESEARCH LAB WASHINGTON DC.
Publisher : N.A
Release Date : 1982
ISBN 10 :
Pages : 30 pages
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The presence of n-alkanes in jet fuel in the right distillation range can be explained if large n-alkanes are present in the crude-oil source. Quantities of large n-alkanes present in crudes made from shale are insufficient, however, to explain the amounts found (up to 37%) in the jet fuel made from these crudes. Although possible precursors to small straight chain molecules are branch alicyclic compounds or substituted cyclic compounds, this report shows that attack in the side chain of model aromatic compounds typically found in shale crudes affords a path to significant yields of n-alkanes. Primary attack at the alpha and gamma positions is favored for substituted benzenes and pyridines. The major initial product distribution can be explained on the basis of Fabuss-Smith-Satterfield theory. (Author).

The Mechanism of Pyrolysis of Some Important Organic Compounds
Author : Chester Wallace Bennett
Publisher : N.A
Release Date : 1927
ISBN 10 :
Pages : 329 pages
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Pyrolytic Methods in Organic Chemistry
Author : Roger Brown
Publisher : Elsevier
Release Date : 2012-12-02
ISBN 10 : 0323154174
Pages : 362 pages
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Pyrolytic Methods in Organic Chemistry: Application of Flow and Flash Vacuum Pyrolytic Techniques is concerned with the use of flow pyrolysis and flash vacuum pyrolysis in preparative organic chemistry. Topics covered include pyrolytic generation and reactions of free radicals, arynes, and cyclobutadienes; elimination reactions; rearrangements of carbenes and nitrenes in the gas phase; and fragmentation of cyclic and acyclic structures. Examples of the types of reaction for which flow and flash pyrolytic methods are well suited are provided. This book is comprised of nine chapters and begins by discussing the place of flow and flash vacuum pyrolytic methods in organic chemistry. The next chapter gives an account of apparatus and experimental methods, while the remaining chapters focus on pyrolytic reactions that are grouped together according to the nature of the overall process, the formal structure of the starting material, and mechanistic type. Reactions that are formally related because they involve elimination of a small fragment molecule X-X or X-Y from a larger molecular framework are examined, along with cleavage of carbocyclic systems. The final chapter presents examples of high-temperature rearrangements, focusing on electrocyclic reactions and cycloadditions involving mainly four or six electrons; reactions that proceed through diradical intermediates; and isomerizations of heterocyclic rings. This monograph is intended mainly for practicing academic and industrial organic chemists and for advanced and graduate students.

Analytical Pyrolysis of Natural Organic Polymers
Author : S.C. Moldoveanu
Publisher : Elsevier
Release Date : 2020-09-12
ISBN 10 : 0128235535
Pages : 640 pages
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Analytical Pyrolysis of Natural Organic Polymers, Second Edition, Volume 20 describes the methodology of analytical pyrolysis, the results of pyrolysis for a variety of biopolymers, and several practical applications of analytical pyrolysis on natural organic polymers and their composite materials. The book describes the results of pyrolysis for biopolymers and some chemically modified natural organic polymers. In addition, the many applications of analytical pyrolysis are covered in detail, including topics such as polymer detection used in forensic science, structure elucidation of specific polymers, and identification of small molecules present in polymers (anti-oxidants, plasticizers, etc.). Assembles all essential information on the pyrolysis of natural polymers in one volume, together with the techniques and instrumentation used Covers advances and developments over the last 20 years, including discussions on the many different types of apparatus commercially available Includes reference lists in every chapter to guide readers on a path to further study

The Photolysis and Pyrolysis of Some Organic Compounds
Author : Ronald James Denning
Publisher : N.A
Release Date : 1979
ISBN 10 :
Pages : 110 pages
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Encyclopaedia of Occupational Health and Safety
Author : Jeanne Mager Stellman
Publisher : International Labour Organization
Release Date : 1998
ISBN 10 : 9789221098171
Pages : 906 pages
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Gas-Phase Pyrolytic Reactions
Author : Nouria A. Al-Awadi
Publisher : John Wiley & Sons
Release Date : 2019-11-11
ISBN 10 : 111901073X
Pages : 304 pages
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Offers a physical organic chemistry and mechanistic perspective of the chemistry of thermal processes in the gas phase The book looks at all aspects of the chemical processing technique called gas-phase pyrolysis, including its methodology and reactors, synthesis, reaction mechanisms, structure, kinetics, and applications. It discusses combinations of pyrolytic reactors with physiochemical techniques, routes for and reactions for the synthesis of organic compounds, and the control of reaction rates. Gas-Phase Pyrolytic Reactions: Synthesis, Mechanisms, and Kinetics starts with in-depth chapter coverage of static pyrolysis, dynamic flow pyrolysis, and analytical pyrolysis. It then examines synthesis and applications, including flash vacuum pyrolysis in organic synthesis, elimination of HX, elimination of CO and CO2, pyrolysis of Meldrum’s acid derivatives, and elimination of N2. A chapter on reaction mechanism comes next and includes coverage of retero-ene reaction and reactive intermediates. Following that are sections covering: structure/reactivity correlation, functional group & structural frame interconversions; gas-phase pyrolysis of hydrazones and phosphorus Ylides; and more. Deals with a growing area of chemistry and engineering interest that fits under the practices of green and sustainable chemistry Addresses several important aspects: methodology and reactors, synthesis, reaction mechanisms, structure, kinetics, and applications Reviews general methods of pyrolysis techniques Sets out the fundamentals and advantages of gas-phase pyrolysis in a way that illustrates its wide potential applications Gas-Phase Pyrolytic Reactions: Synthesis, Mechanisms, and Kinetics will appeal to organic chemists, physical organic chemists, chemical engineers and anyone interested in green/sustainable chemistry, chemical synthesis, or process chemistry.

Pyrolysis of Oil Shale and Related Organic Compounds in Supercritical Steam
Author : Ke-shieng Yang
Publisher : N.A
Release Date : 1982
ISBN 10 :
Pages : 226 pages
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