Download or read book Investigation on the Thermal Decomposition of Cyclic Hydrocarbons with the Shock Tube Technique written by Chen Xu and published by . This book was released on 2009 with total page 115 pages. Available in PDF, EPUB and Kindle. Book excerpt: The reactions involving aromatic hydrocarbons play a crucial role in the combustion chemistry for the formation and growth of polyaromatic hydrocarbons (PAHs). In this work, the thermal decomposition of the single ring aromatics benzene, phenyl and ortho-benzyne have been investigated behind reflected shock waves by using a sensitive detection technique - Atomic Resonance Absorption Spectroscopy (ARAS).The unimolecular decomposition of ortho-benzyne was investigated behind reflected shock waves by taking 1,2-diiodobenzene as the thermal source. The initial concentration of ortho-benzyne was determined in situ with I-ARAS. Simultaneously, the progress of reaction was monitored by measuring the produced H atoms with H-ARAS. By reproducing the experimental H atom concentration time profiles, a two channel decomposition model of ortho-benzyne was developed.By investigating the thermal decomposition of phenyl and benzene, a complete detailed chemical reaction model was elaborated which is able to capture the measured H atom concentration profiles over the whole investigated parameter range.Thus, the present work may contribute to a better understanding and describing of high temperature combustion of aromates which are considered as major soot precursors.

Download or read book Shock Tube Investigations of the Reaction Kinetics of Small Unsaturated Hydrocarbon Species written by Ravi Xavier Fernandes and published by Cuvillier Verlag. This book was released on 2004 with total page 133 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Shock tube investigations of the reaction kinetics of small unsaturated hydrocarbon species written by and published by Cuvillier Verlag. This book was released on 2004-07-29 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Thermal Decomposition Studies of Chlorocarbon Molecules in a Shock Tube Using the Cl atom ARAS Method written by and published by . This book was released on 1994 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: Because of needs for understanding the chemical kinetic mechanism in chlorocarbon molecule incineration, we have recently completed studies on the thermal decompositions of COCl2, CH3Cl, CH2Cl2, CCl4, and CF3 Cl. The shock tube technique combined with atomic resonance absorption spectrometry (ARAS), as applied to Cl atoms, has been used to obtain absolute rate data for these reactions. In all cases, the decompositions are nearly in the second-order regime. Theoretical calculations, using the Troe formalism, have been performed. In these calculations, both the threshold energies for decomposition, E{sub o}, and the energy transferred per down collision, [Delta]E{sub down}, are varied parametrically for best fitting to the data. The latter quantity determines the collisional deactivation efficiency factor, [beta]{sub c}.

Download or read book Investigations of the Thermal Decomposition of Small Molecules Especially at High Pressures written by H. A. OLSCHEWSKI and published by . This book was released on 1966 with total page 69 pages. Available in PDF, EPUB and Kindle. Book excerpt: Unimolecular dissociation reactions of small molecules were investigated. The thermal decomposition of N2O was investigated in a detailed way. By using the methods of shock waves and adiabatic compression the reaction was studied between 1200 and 2500K. All experimental results which describe a variation of the low pressure limiting rate of about eleven orders of magnitude, are in good agreement. This example and others were selected for a detailed theoretical analysis of unimolecular reactions of three- and four-atomic molecules. For shock tube experiments up to about 1000 atmospheres, a shock tube with 70 mm internal diameter was constructed and put into operation. Driving pressures up to about 200 atmospheres were used for experiments on N2O- and N2H4- decomposition, which gave data on the high pressure limiting rate of both dissociations.

Download or read book Shock Tube Studies of Thermal Decomposition Reactions Using Ultraviolet Absorption Spectroscopy written by Matthew A. Oehlschlaeger and published by . This book was released on 2005 with total page 143 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Mathematical Modelling of Gas Phase Complex Reaction Systems Pyrolysis and Combustion written by and published by Elsevier. This book was released on 2019-06-06 with total page 1034 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mathematical Modelling of Gas-Phase Complex Reaction Systems: Pyrolysis and Combustion, Volume 45, gives an overview of the different steps involved in the development and application of detailed kinetic mechanisms, mainly relating to pyrolysis and combustion processes. The book is divided into two parts that cover the chemistry and kinetic models and then the numerical and statistical methods. It offers a comprehensive coverage of the theory and tools needed, along with the steps necessary for practical and industrial applications. Details thermochemical properties and "ab initio" calculations of elementary reaction rates Details kinetic mechanisms of pyrolysis and combustion processes Explains experimental data for improving reaction models and for kinetic mechanisms assessment Describes surrogate fuels and molecular reconstruction of hydrocarbon liquid mixtures Describes pollutant formation in combustion systems Solves and validates the kinetic mechanisms using numerical and statistical methods Outlines optimal design of industrial burners and optimization and dynamic control of pyrolysis furnaces Outlines large eddy simulation of turbulent reacting flows

Download or read book Experimental and Kinetic Modeling Study of Cyclohexane and Its Mono alkylated Derivatives Combustion written by Zhandong Wang and published by Springer. This book was released on 2018-01-23 with total page 225 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis investigates the combustion chemistry of cyclohexane, methylcyclohexane, and ethylcyclohexane on the basis of state-of-the-art synchrotron radiation photoionization mass spectrometry experiments, quantum chemistry calculations, and extensive kinetic modeling. It explores the initial decomposition mechanism and distribution of the intermediates, proposes a novel formation mechanism of aromatics, and develops a detailed kinetic model to predict the three cycloalkanes’ combustion properties under a wide range of conditions. Accordingly, the thesis provides an essential basis for studying much more complex cycloalkanes in transport fuels and has applications in engine and fuel design, as well as emission control.

Download or read book U S Government Research Reports written by and published by . This book was released on 1962 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Kinetic Investigation of Gas Phase Reactions Relevant to the Formation and Degradation of Aromatic Hydrocarbons written by Binod Raj Giri and published by Cuvillier Verlag. This book was released on 2005-08-17 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt: Die vorliegende Arbeit beschäftigt sich mit kinetischen Untersuchungen zur Bildung und Abbau des ersten aromatischen Rings unter verbrennungsrelevanten Bedingungen.

Download or read book A Shock Tube Study of the High Temperature Reactions of Nitrogen with Hydrocarbons written by Vithal Vasudev Rao and published by . This book was released on 1966 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Thermal Decomposition of Cyclic Compounds written by Howard Dean Batha and published by . This book was released on 1954 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Technical Abstract Bulletin written by Defense Documentation Center (U.S.) and published by . This book was released on 1963 with total page 1032 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Part I Thermal Data on Some Cyclic Hydrocarbons written by Ralph William Spitzer and published by . This book was released on 1941 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Study of the High temperature Autoignition and Thermal Decomposition of Hydrocarbons written by David Charles Horning and published by . This book was released on 2001 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 836 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Shock Tube Study of the High Temperature Reactions of Nitrogen with Hydrocarbons microform written by Vithal Vasudev Rao and published by National Library of Canada. This book was released on 1966 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: