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Protocols For The Selective Cleavage Of Carbon Sulfur Bonds In Coal
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Book Synopsis Protocols for the Selective Cleavage of Carbon-sulfur Bonds in Coal. Final Technical Report, September 1, 1992--December 31, 1993 by :
Download or read book Protocols for the Selective Cleavage of Carbon-sulfur Bonds in Coal. Final Technical Report, September 1, 1992--December 31, 1993 written by and published by . This book was released on 1993 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: Results of research pertaining to chemical reactions that aim to selectively cleave C-S bonds in model compounds as well as Illinois coal are summarized. Chemical reactions that result in carbon-sulfur bond cleavage are an essential aspect of any protocol designed to remove organic sulfur from coal. In the second year of the project ''Protocols for the Selective Cleavage of Carbon-Sulfur Bonds in Coal'' investigations of reactions in which organic sulfur-containing coal model compounds are subjected to different conditions of temperature, solvent mixtures, reagents, and radiation have been completed. A series of reactions have been undertaken in which physically cleaned Illinois coal has been subjected to many of the same reaction conditions that were shown, via the use of model sulfides, to result in substantial C-S bond cleavage and or sulfur oxidation. Therefore, summarized in this final report are results of the investigations of the photooxidation reactions of coal model sulfones and sulfides; the photolytic desulfurization of coal; and various other topics, including a summary of endeavors aimed at initiating C-S bond cleavage reactions using oxidation/chlorination/desulfurization protocols, and various tellurium reagents.
Book Synopsis Protocols for the Selective Cleavage of Carbon-sulfur Bonds in Coal. Technical Report, December 1, 1992--February 28, 1993 by :
Download or read book Protocols for the Selective Cleavage of Carbon-sulfur Bonds in Coal. Technical Report, December 1, 1992--February 28, 1993 written by and published by . This book was released on 1993 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chemical reactions that result in carbon-sulfur bond cleavage are an essential aspect of any protocol designed to remove organic sulfur from coal. Planned in the second year of our project Protocols for the Selective Cleavage of Carbon-Sulfur Bonds in Coal are investigations of reactions in which organic sulfur-containing coal model compounds are subjected to different conditions of temperature, solvent mixtures and radiation. Other investigations that will result in analyses of the likelihood of C-S bond cleavages resulting from various oxidative processes will also be undertaken. Summarized in this quarterly report are results of our investigations of the following topics: (a) desulfurization of coal model sulfones; (b) desulfurization of coal model sulfides; (c) photooxidation of organic sulfides; and (d) photolytic desulfurization of coal.
Book Synopsis Protocols for the Selective Cleavage of Carbon-sulfur Bonds in Coal. [Quarterly] Technical Report, March 1, 1993--May 31, 1993 by :
Download or read book Protocols for the Selective Cleavage of Carbon-sulfur Bonds in Coal. [Quarterly] Technical Report, March 1, 1993--May 31, 1993 written by and published by . This book was released on 1993 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chemical reactions that result in carbon-sulfur bond cleavage are an essential aspect of any protocol designed to remove organic sulfur from coal. Planned in the second year of our project ''Protocols for the Selective Cleavage of Carbon-Sulfur Bonds in Coal'' are investigations of reactions in which organic sulfur-containing coal model compounds are subjected to different conditions of temperature, solvent mixtures and radiation. other investigations that will result in analyses of the likelihood of C-S bond cleavages resulting from various oxidative processes will also be undertaken. Summarized in this quarterly report are results of our investigations of the following topics: (a) desulfurization of coal model sulfones and sulfides; (b) photolytic desulfurization of coal; (c) differential scanning calorimetric experiments on photooxidized coal; and (d) discussions on C-S bond strengths in radical cations.
Book Synopsis Protocols for the Selective Cleavage of Carbon-sulfur Bonds in Coal. Interim Final Technical Report, September 1, 1992--August 31, 1993 by :
Download or read book Protocols for the Selective Cleavage of Carbon-sulfur Bonds in Coal. Interim Final Technical Report, September 1, 1992--August 31, 1993 written by and published by . This book was released on 1993 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents results of research pertaining to chemical reactions that aim to selectively cleave C-S bonds in model compounds as well as Illinois coal. Chemical reactions that result in carbon-sulfur bond cleavage are an essential aspect of any protocol designed to remove organic sulfur from coal. In the second year of the project {open_quotes}Protocols for the Selective Cleavage of Carbon-Sulfur Bonds in Coal, the author has completed investigations of reactions in which organic sulfur-containing coal model compounds are subjected to different conditions of temperature, solvent mixtures, reagents, and radiation. He has also undertaken a series of reactions in which physically cleaned Illinois coal has been subjected to many of the same reaction conditions that were shown, via the use of model sulfides, to result in substantial C-S bond cleavage and or sulfur oxidation. Therefore, summarized in this interim final report are results of the investigations of the photooxidation reactions of coal model sulfones and sulfides; the photolytic desulfurization of coal; and various other topics, including a summary of the endeavors aimed at initiating C-S bond cleavage reactions using oxidation/chlorination/desulfurization protocols, and various tellurium reagents. Important experiments remain to be completed on this project; therefore, efforts in these areas will continue through the end of calendar year 1993.
Book Synopsis Protocols for the Selective Cleavage of Carbon-sulfur Bonds in Coal by :
Download or read book Protocols for the Selective Cleavage of Carbon-sulfur Bonds in Coal written by and published by . This book was released on 1991 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: Removal of the organic sulfur in coal constitutes one of the major challenges facing fossil fuel scientists today. A cost--effective of desulfurizing Illinois coal is non-existent at the present time. Research in our group aims to develop a simple protocol for sulfur removal by gaining understanding of how various additives can enhance the rates of C-S bond cleavage in Illinois coal and coal model compounds, relative to fragmentation of the coal macromolecule via C-C, C-O, and C-N bond cleavage. During this funding period, we plan to carry out examinations of: (a) the effects of various reaction conditions on radical-initiated and Lewis acid-catalyzed C-S bond cleavages; (b) the effects of caustic impregnation and subsequent alcoholic reflux on C-S bond cleavage strategies; (c) the reactions of coal model compounds with electron-deficient substrates; (d) examinations of photooxidative C-S bond cleavage reactions; (e) the effects of moderate (300--400°C) temperatures and pressures as well as ultrasonic radiation on (a) - (c). Also planned are differential scanning calorimetric (DSC) examinations of selected C-S bond cleavage protocols, including those on Illinois coals that possess varying amounts of organic and inorganic sulfur.
Download or read book לאה'קה הנערה מפלאנטש written by and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Protocols for the Selective Cleavage of Carbon-sulfur Bonds in Coal. Technical Report, March 1, 1992--May 30, 1992 by :
Download or read book Protocols for the Selective Cleavage of Carbon-sulfur Bonds in Coal. Technical Report, March 1, 1992--May 30, 1992 written by and published by . This book was released on 1992 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chemical reactions that result in carbon-sulfur bond cleavage are an essential aspect of any protocol designed to remove organic sulfur from coal. Unfortunately, several classes of reactions that lead to carbon-sulfur bond cleavage are not well understood. Planned in ''Protocols for the Selective Cleavage of Carbon-Sulfur Bonds in Coal'' are reactions in which organic sulfur-containing coal model compounds are subjected to different conditions of temperature, solvent mixtures and radiation. Summarized in this quarterly report are results of our investigations of the following topics: (a) the reactions of coal model compounds, namely, benzyl phenyl sulfide (BPS), diphenyl sulfide (hereafter referred to as phenylsulfide, PS) and dibenzothiophene (DBT) with various reagents (Lewis acid catalysts, radical initiators, electron acceptors) using different solvents and temperature in an attempt to maximize the degree of carbon-sulfur (C-S) bond cleavage; and (b) the results of photooxidation of coal model compounds under controlled conditions. Quantitative product analyses are presented in this report.
Book Synopsis Protocols for the Selective Cleavage of Carbon-sulfur Bonds in Coal. Technical Report, December 1, 1991--February 29, 1992 by :
Download or read book Protocols for the Selective Cleavage of Carbon-sulfur Bonds in Coal. Technical Report, December 1, 1991--February 29, 1992 written by and published by . This book was released on 1992 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt: Planned in this project ''Protocols for the Selective Cleavage of Carbon-Sulfur Bonds in Coal'' are reactions in which organic free radicals and/or organic anions are allowed to react with physically cleaned Illinois coal and sulfur-containing coal model compounds. This quarterly report contains the results of photooxidation of coal model compounds, namely, benzyl phenyl sulfide, phenylsulfide, dibenzothiophene, benzothiophene and thiophene, in the presence of 9,10-dicyanoanthracene or anthracene. Quantitative product analysis for the matrix of reactions whereby the coal model compounds are subjected to various solvents and temperature changes is presented in this quarterly report. Further quantitative analyses of the products are being undertaken.
Book Synopsis Protocols for the Selective Cleavage of Carbon-sulfur Bonds in Coal. Quarterly Report, September 1, 1991--November 30, 1991 by :
Download or read book Protocols for the Selective Cleavage of Carbon-sulfur Bonds in Coal. Quarterly Report, September 1, 1991--November 30, 1991 written by and published by . This book was released on 1991 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: Removal of the organic sulfur in coal constitutes one of the major challenges facing fossil fuel scientists today. A cost--effective of desulfurizing Illinois coal is non-existent at the present time. Research in our group aims to develop a simple protocol for sulfur removal by gaining understanding of how various additives can enhance the rates of C-S bond cleavage in Illinois coal and coal model compounds, relative to fragmentation of the coal macromolecule via C-C, C-O, and C-N bond cleavage. During this funding period, we plan to carry out examinations of: (a) the effects of various reaction conditions on radical-initiated and Lewis acid-catalyzed C-S bond cleavages; (b) the effects of caustic impregnation and subsequent alcoholic reflux on C-S bond cleavage strategies; (c) the reactions of coal model compounds with electron-deficient substrates; (d) examinations of photooxidative C-S bond cleavage reactions; (e) the effects of moderate (300--400°C) temperatures and pressures as well as ultrasonic radiation on (a) - (c). Also planned are differential scanning calorimetric (DSC) examinations of selected C-S bond cleavage protocols, including those on Illinois coals that possess varying amounts of organic and inorganic sulfur.
Download or read book Energy Research Abstracts written by and published by . This book was released on 1995 with total page 782 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Final Technical Report by : Illinois Clean Coal Institute
Download or read book Final Technical Report written by Illinois Clean Coal Institute and published by . This book was released on 1994 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Cleavage of the Carbon-sulfur Bond by : Donald Philip Harnish
Download or read book The Cleavage of the Carbon-sulfur Bond written by Donald Philip Harnish and published by . This book was released on 1948 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Announcements & Index by :
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1993 with total page 930 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Annual Index by :
Download or read book Government Reports Annual Index written by and published by . This book was released on 1994 with total page 1144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Abstracts of Papers by : Illinois Coal Development Board. Contractors' Technical Meeting
Download or read book Abstracts of Papers written by Illinois Coal Development Board. Contractors' Technical Meeting and published by . This book was released on 1991 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Gas Abstracts written by and published by . This book was released on 1995 with total page 856 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Energy: a Continuing Bibliography with Indexes by :
Download or read book Energy: a Continuing Bibliography with Indexes written by and published by . This book was released on 1983 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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