Pyrolysis of Organic Molecules

Pyrolysis of Organic Molecules
Author: Serban C. Moldoveanu
Publsiher: Elsevier
Total Pages: 816
Release: 2018-11-14
ISBN: 0444640010
Category: Science
Language: EN, FR, DE, ES & NL

Pyrolysis of Organic Molecules Book Excerpt:

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

Pyrolysis of Organic Molecules
Author: Serban C. Moldoveanu
Publsiher: Elsevier Science
Total Pages: 744
Release: 2009-10-16
ISBN: 9780444531131
Category: Science
Language: EN, FR, DE, ES & NL

Pyrolysis of Organic Molecules Book Excerpt:

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

The Gas phase Pyrolysis of Organic Molecules
Author: Z. H. Shirazi
Publsiher: Unknown
Total Pages: 135
Release: 1973
ISBN: 1928374650XXX
Category: Electronic Book
Language: EN, FR, DE, ES & NL

The Gas phase Pyrolysis of Organic Molecules Book Excerpt:

Pyrolysis of Simple Organic Molecules by Gas Chromatography

Pyrolysis of Simple Organic Molecules by Gas Chromatography
Author: Thomas Wolf
Publsiher: Unknown
Total Pages: 732
Release: 1966
ISBN: 1928374650XXX
Category: Gas chromatography
Language: EN, FR, DE, ES & NL

Pyrolysis of Simple Organic Molecules by Gas Chromatography Book Excerpt:

NBS Special Publication

NBS Special Publication
Author: Anonim
Publsiher: Unknown
Total Pages: 135
Release: 1972
ISBN: 1928374650XXX
Category: Weights and measures
Language: EN, FR, DE, ES & NL

NBS Special Publication Book Excerpt:

The High Temperature Pyrolysis of Simple Organic Molecules and the Formation of C2

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
Publsiher: Unknown
Total Pages: 37
Release: 1968
ISBN: 1928374650XXX
Category: Diatomic molecules
Language: EN, FR, DE, ES & NL

The High Temperature Pyrolysis of Simple Organic Molecules and the Formation of C2 Book Excerpt:

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

Analytical Pyrolysis
Author: C.E.R. Jones
Publsiher: Elsevier
Total Pages: 434
Release: 2012-12-02
ISBN: 0444601406
Category: Science
Language: EN, FR, DE, ES & NL

Analytical Pyrolysis Book Excerpt:

Analytical Pyrolysis presents the Proceedings of the Third International Symposium on Analytical Pyrolysis, held in Amsterdam on September 7-9, 1976. It looks at newly emergent techniques in analytical pyrolysis, including pyrolysis mass spectrometry, gas chromatography, thin-layer chromatography, and pyrolysis-gas liquid chromatography. The book also covers topics ranging from automation and microbiology to forensic science and pharmacology, reproducibility and specificity, biochemistry, laser-induced pyrolysis, pyrolytic reaction mechanisms, and polymers. Comprised of 50 chapters, this book begins with a discussion of automatic analysis of tire rubber blends using computer-linked pyrolysis gas chromatography, thermal procedures in coupling with thin-layer chromatography, the role of pyrolysis-gas liquid chromatography in biomedical studies, and the identification of microorganisms by pyrolysis gas-liquid chromatography. It then examines forensic applications of analytical pyrolysis techniques, structure and degradation behavior of synthetic polymers using pyrolysis in combination with field ion mass spectrometry, determination of polysaccharides in fulvic acids by pyrolysis gas chromatography, and application of Curie-point pyrolysis mass spectrometry in fungal taxonomy. The reader is also introduced to pyrolysis mass spectrometry of model compounds labeled with stable isotopes, the use of pyrolysis/gas chromatography to determine the quality of porous polymers of styrene cross-linked with divinyl benzene, and application of pyrohydrolysis for a rapid and accurate determination of halides in silicate rocks and minerals. This volume will benefit students, researchers, chemists, and scientists working in the field of analytical pyrolysis.

Pyrolysis gas Chromatography Mass Spectrometry Of Polymeric Materials

Pyrolysis gas Chromatography  Mass Spectrometry Of Polymeric Materials
Author: Peter Kusch
Publsiher: World Scientific
Total Pages: 268
Release: 2018-10-08
ISBN: 1786345773
Category: Science
Language: EN, FR, DE, ES & NL

Pyrolysis gas Chromatography Mass Spectrometry Of Polymeric Materials Book Excerpt:

The methodology of analytical pyrolysis-GC/MS has been known for several years, but is seldom used in research laboratories and process control in the chemical industry. This is due to the relative difficulty of interpreting the identified pyrolysis products as well as the variety of them. This book contains full identification of several classes of polymers/copolymers and biopolymers that can be very helpful to the user. In addition, the practical applications can encourage analytical chemists and engineers to use the techniques explored in this volume.The structure and the functions of various types of pyrolyzers and the results of the pyrolysis-gas chromatographic-mass spectrometric identification of synthetic polymers/copolymers and biopolymers at 700°C are described. Practical applications of these techniques are also included, detailing the analysis of microplastics, failure analysis in the automotive industry and solutions for technological problems.

Pyrolysis of Organic Molecules Relevant to Combustion as Monitored by Photoionization Time of flight Mass Spectrometry

Pyrolysis of Organic Molecules Relevant to Combustion as Monitored by Photoionization Time of flight Mass Spectrometry
Author: Kevin Howard Weber
Publsiher: Unknown
Total Pages: 226
Release: 2010
ISBN: 9781124263601
Category: Aromatic compounds
Language: EN, FR, DE, ES & NL

Pyrolysis of Organic Molecules Relevant to Combustion as Monitored by Photoionization Time of flight Mass Spectrometry Book Excerpt:

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.

Catalog of National Bureau of Standards Publications 1966 1976 pt 1 2 Citations and abstracts v 2 pt 1 2 Key word index

Catalog of National Bureau of Standards Publications  1966 1976  pt  1 2  Citations and abstracts  v  2  pt  1 2  Key word index
Author: United States. National Bureau of Standards. Technical Information and Publications Division
Publsiher: Unknown
Total Pages: 135
Release: 1978
ISBN: 1928374650XXX
Category: Government publications
Language: EN, FR, DE, ES & NL

Catalog of National Bureau of Standards Publications 1966 1976 pt 1 2 Citations and abstracts v 2 pt 1 2 Key word index Book Excerpt:

Kinetic Studies of the Pyrolysis of Ethane and Other Organic Molecules in the Presence of Nitrous Oxide

Kinetic Studies of the Pyrolysis of Ethane and Other Organic Molecules in the Presence of Nitrous Oxide
Author: Ronald Kenwright
Publsiher: Unknown
Total Pages: 135
Release: 1958
ISBN: 1928374650XXX
Category: Electronic Book
Language: EN, FR, DE, ES & NL

Kinetic Studies of the Pyrolysis of Ethane and Other Organic Molecules in the Presence of Nitrous Oxide Book Excerpt:

Scientific and Technical Aerospace Reports

Scientific and Technical Aerospace Reports
Author: Anonim
Publsiher: Unknown
Total Pages: 135
Release: 1986
ISBN: 1928374650XXX
Category: Aeronautics
Language: EN, FR, DE, ES & NL

Scientific and Technical Aerospace Reports Book Excerpt:

Biofuels Production and Processing Technology

Biofuels Production and Processing Technology
Author: M.R. Riazi,David Chiaramonti
Publsiher: CRC Press
Total Pages: 690
Release: 2017-10-10
ISBN: 1498778941
Category: Technology & Engineering
Language: EN, FR, DE, ES & NL

Biofuels Production and Processing Technology Book Excerpt:

The importance of biofuels in greening the transport sector in the future is unquestionable, given the limited available fossil energy resources, the environmental issues associated to the utilization of fossil fuels, and the increasing attention to security of supply. This comprehensive reference presents the latest technology in all aspects of biofuels production, processing, properties, raw materials, and related economic and environmental aspects. Presenting the application of methods and technology with minimum math and theory, it compiles a wide range of topics not usually covered in one single book. It discusses development of new catalysts, reactors, controllers, simulators, online analyzers, and waste minimization as well as design and operational aspects of processing units and financial and economic aspects. The book rounds out by describing properties, specifications, and quality of various biofuel products and new advances and trends towards future technology.

Electronic Waste and Printed Circuit Board Recycling Technologies

Electronic Waste and Printed Circuit Board Recycling Technologies
Author: Muammer Kaya
Publsiher: Springer Nature
Total Pages: 326
Release: 2019-10-17
ISBN: 3030265935
Category: Technology & Engineering
Language: EN, FR, DE, ES & NL

Electronic Waste and Printed Circuit Board Recycling Technologies Book Excerpt:

This book covers state-of-the-art technologies, principles, methods and industrial applications of electronic waste (e-waste) and waste PCB (WPCB) recycling. It focuses on cutting-edge mechanical separation processes and pyro- and hydro-metallurgical treatment methods. De-soldering, selective dismantling, and dry separation methods (including the use of gravity, magnetic and electrostatic techniques) are discussed in detail, noting the patents related to each. The volume discusses the available industrial equipment and plant flowsheets used for WPCB recycling in detail, while addressing potential future directions of the field. This practical, comprehensive, and multidisciplinary reference will appeal to professionals throughout global industrial, academic and government institutions interested in addressing the growing problem of e-waste. Covers principles, methods and industrial applications of e-waste and PCB recycling; Details state-of-the-art mechanical separation processes and pyro- and hydro-metallurgical treatment methods; Describes the available industrial equipment used and plant flowsheets for PCB recycling and addresses potential future developments of this important field.

The Mechanisms of Pyrolysis Oxidation and Burning of Organic Materials

The Mechanisms of Pyrolysis  Oxidation  and Burning of Organic Materials
Author: Leo Aloysius Wall
Publsiher: Unknown
Total Pages: 192
Release: 1972
ISBN: 1928374650XXX
Category: Chemistry, Organic
Language: EN, FR, DE, ES & NL

The Mechanisms of Pyrolysis Oxidation and Burning of Organic Materials Book Excerpt:

Analytical Pyrolysis of Natural Organic Polymers

Analytical Pyrolysis of Natural Organic Polymers
Author: S.C. Moldoveanu
Publsiher: Elsevier
Total Pages: 510
Release: 1998-11-11
ISBN: 9780080527161
Category: Science
Language: EN, FR, DE, ES & NL

Analytical Pyrolysis of Natural Organic Polymers Book Excerpt:

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.

Stable Isotopes

Stable Isotopes
Author: H. Griffiths
Publsiher: Garland Science
Total Pages: 464
Release: 2020-08-18
ISBN: 1000102327
Category: Science
Language: EN, FR, DE, ES & NL

Stable Isotopes Book Excerpt:

In this authoritative review, leading international researchers explore the growing range of applications of stable isotope techniques for probing and integrating biological processes and palaeoclimatic cycles. The interdisciplinary approach covers a wide range of issues, opportunities and developments, setting interactions with plants in the context of water and nutrient cycles, exchanges with the atmosphere and modelling past and present climate change. This important book will appeal to those requiring an overview of the use of stable isotopes in aquatic, terrestrial and climatic processes and is in tune with current global concerns. In addition postgraduates and research scientists will find an extensive guide to more specialist disciplines, including developing mass spectrometer technologies, compound-specific and cellular-discrimination processes or whole organism and ecosystem responses.

Fiscal Year 1986 Department of Energy Authorization basic Research Programs

Fiscal Year 1986 Department of Energy Authorization  basic Research Programs
Author: United States. Congress. House. Committee on Science and Technology. Subcommittee on Energy Development and Applications
Publsiher: Unknown
Total Pages: 135
Release: 1985
ISBN: 1928374650XXX
Category: Fossil fuels
Language: EN, FR, DE, ES & NL

Fiscal Year 1986 Department of Energy Authorization basic Research Programs Book Excerpt:

Biochar from Biomass and Waste

Biochar from Biomass and Waste
Author: Yong Sik Ok,Daniel C.W. Tsang,Nanthi Bolan,Jeffrey M. Novak
Publsiher: Elsevier
Total Pages: 462
Release: 2018-11-02
ISBN: 0128117303
Category: Science
Language: EN, FR, DE, ES & NL

Biochar from Biomass and Waste Book Excerpt:

Biochar from Biomass and Waste: Fundamentals and Applications provides the fundamentals of biochar, such as its basic concepts, production technology and characterization methods, also including comprehensive examples for readers. This book includes information on state-of-art biochar application technologies in the fields of agriculture, energy and environmental sciences with step-by-step case studies. Biochar has received worldwide interests in the past decade because it encompasses high priority research areas, including bioenergy production, global warming mitigation and sustainable agriculture. Offers comprehensive coverage of biochar production, characterization and modification methods Provides global case studies covering a wide range of application fields, including environmental, agricultural, syngas and bio-oil Covers the sustainability and future of biochar

Identification of Soil Organics Using a Gas Chromatographic Mass Spectrometric Method

Identification of Soil Organics Using a Gas Chromatographic Mass Spectrometric Method
Author: William F. O'Reilly,R. P. Murrmann
Publsiher: Unknown
Total Pages: 13
Release: 1974
ISBN: 1928374650XXX
Category: Gas chromatography
Language: EN, FR, DE, ES & NL

Identification of Soil Organics Using a Gas Chromatographic Mass Spectrometric Method Book Excerpt:

As part of a study on the role of natural organics in determining the physical properties of soils, the use of combined gas chromatographic/mass spectrometric methods for identification of the more volatile organic chemicals in soils were explored. Soil was first treated at 100, 150, and 200C to select the optimum temperature where minimum pyrolysis of soil organic matter occurred. The vapors from three soils heated in a closed system at 150C were then analyzed. Subsequent refinement in technique involved collection of vapor from the three soils maintained at 150C using a constant flow sample holder/inlet system. About 50 organic compounds were identified. While application of this approach is restricted to the volatile compounds in the lower molecular weight range, conditions of analysis are thought to be suitable for identification of compounds originally present as opposed to pyrolysis products of soil organic matter. (Author).