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Characterization Of Coal Macerals By High Resolution Supercritical Fluid Chromatography
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Book Synopsis Characterization of Coal Macerals by High Resolution Supercritical Fluid Chromatography by : Milton L. Lee
Download or read book Characterization of Coal Macerals by High Resolution Supercritical Fluid Chromatography written by Milton L. Lee and published by . This book was released on 1987 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Pyridine extracts of three new vitrinite-rich coals of different rank have been fractionated into chemical classes and analyzed by capillary column gas chromatography-mass spectrometry. Cf. Report documentation page.
Book Synopsis Chemical Characterization of Thermal Maturity in Coals Using High Resolution Chromatographic Methods by : Milton L. Lee
Download or read book Chemical Characterization of Thermal Maturity in Coals Using High Resolution Chromatographic Methods written by Milton L. Lee and published by . This book was released on 1990 with total page 71 pages. Available in PDF, EPUB and Kindle. Book excerpt: A mild base catalyzed depolymerization method has been applied to three coals (North Dakota lignite, Utah Blind Canyon high volatile bituminous, and Pocahontas No. 3 low volatile bituminous) from low to high rank. Resultant solubilities ranged from 60 to 90 percent. Comparative results of the depolymerization products with coal solvent extracts indicate that the solvent extractable portion of coal becomes more characteristic of the macromolecular structure of coal as rank increases. Furthermore, the compositions of the depolymerized macromolecular structures of the different rank coals were surprisingly similar. The polycyclic aromatic hydrocarbons in the solvent extracts had structural features that appear to be more related to coal rank or maturity than do the components of the depolymerized coals. There were preferred aromatic moieties for which the degree of alkylation and the extent of aromatization decreased and increased, respectively, with rank. The use of supercritical ammonia as a mobile phase, and the improvements in two-dimensional chromatograph for supercritical fluid chromatography strengthen the possibility of identifying aromatic moieties with linking groups in the various fractions.
Download or read book Energy Research Abstracts written by and published by . This book was released on 1989 with total page 780 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book ERDA Energy Research Abstracts written by and published by . This book was released on 1983 with total page 1028 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1990 with total page 850 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Novel Techniques in Fossil Fuel Mass Spectrometry by : Terrence R. Ashe
Download or read book Novel Techniques in Fossil Fuel Mass Spectrometry written by Terrence R. Ashe and published by ASTM International. This book was released on 1989 with total page 207 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Coal Liquefaction Process Streams Characterization and Evaluation. Characterization of Coal-derived Materials by Field Desorption Mass Spectrometry, Two-dimensional Nuclear Magnetic Resonance, Supercritical Fluid Extraction, and Supercritical Fluid Chromatography by :
Download or read book Coal Liquefaction Process Streams Characterization and Evaluation. Characterization of Coal-derived Materials by Field Desorption Mass Spectrometry, Two-dimensional Nuclear Magnetic Resonance, Supercritical Fluid Extraction, and Supercritical Fluid Chromatography written by and published by . This book was released on 1992 with total page 179 pages. Available in PDF, EPUB and Kindle. Book excerpt: Under contract from the DOE, and in association with CONSOL Inc., Battelle, Pacific Northwest Laboratory (PNL) evaluated four principal and several complementary techniques for the analysis of non-distillable direct coal liquefaction materials in support of process development. Field desorption mass spectrometry (FDMS) and nuclear magnetic resonance (NMR) spectroscopic methods were examined for potential usefulness as techniques to elucidate the chemical structure of residual (nondistillable) direct coal liquefaction derived materials. Supercritical fluid extraction (SFE) and supercritical fluid chromatography/mass spectrometry (SFC/MS) were evaluated for effectiveness in compound-class separation and identification of residual materials. Liquid chromatography (including microcolumn) separation techniques, gas chromatography/mass spectrometry (GC/MS), mass spectrometry/mass spectrometry (MS/MS), and GC/Fourier transform infrared (FTIR) spectroscopy methods were applied to supercritical fluid extracts. The full report authored by the PNL researchers is presented here. The following assessment briefly highlights the major findings of the project, and evaluates the potential of the methods for application to coal liquefaction materials. These results will be incorporated by CONSOL into a general overview of the application of novel analytical techniques to coal-derived materials at the conclusion of CONSOL's contract.
Download or read book Coal Abstracts written by and published by . This book was released on 1991 with total page 720 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis ASMS Conference on Mass Spectrometry and Allied Topics : [proceedings] by :
Download or read book ASMS Conference on Mass Spectrometry and Allied Topics : [proceedings] written by and published by . This book was released on 1987 with total page 1348 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis High Resolution Chromatographic Characterization of Depolymerized Coals of Different Rank by : Richard E. Carlson (Chemist.)
Download or read book High Resolution Chromatographic Characterization of Depolymerized Coals of Different Rank written by Richard E. Carlson (Chemist.) and published by . This book was released on 1991 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Chemistry and Characterization of Coal Macerals by : Randall E. Winans
Download or read book Chemistry and Characterization of Coal Macerals written by Randall E. Winans and published by . This book was released on 1984 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Chemistry and Characterization of Coal Macerals by : Randall E. Winans
Download or read book Chemistry and Characterization of Coal Macerals written by Randall E. Winans and published by . This book was released on 1984-01-01 with total page 195 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Characterization of Coal Molecular Structure Using High Resolution Chromatographic Techniques by : Huey-Ching K. Chang
Download or read book Characterization of Coal Molecular Structure Using High Resolution Chromatographic Techniques written by Huey-Ching K. Chang and published by . This book was released on 1989 with total page 530 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fossil Energy Update written by and published by . This book was released on 1981 with total page 698 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1983 with total page 1368 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Coal Liquefaction Process Streams Characterization and Evaluation by :
Download or read book Coal Liquefaction Process Streams Characterization and Evaluation written by and published by . This book was released on 1992 with total page 179 pages. Available in PDF, EPUB and Kindle. Book excerpt: Under contract from the DOE, and in association with CONSOL Inc., Battelle, Pacific Northwest Laboratory (PNL) evaluated four principal and several complementary techniques for the analysis of non-distillable direct coal liquefaction materials in support of process development. Field desorption mass spectrometry (FDMS) and nuclear magnetic resonance (NMR) spectroscopic methods were examined for potential usefulness as techniques to elucidate the chemical structure of residual (nondistillable) direct coal liquefaction derived materials. Supercritical fluid extraction (SFE) and supercritical fluid chromatography/mass spectrometry (SFC/MS) were evaluated for effectiveness in compound-class separation and identification of residual materials. Liquid chromatography (including microcolumn) separation techniques, gas chromatography/mass spectrometry (GC/MS), mass spectrometry/mass spectrometry (MS/MS), and GC/Fourier transform infrared (FTIR) spectroscopy methods were applied to supercritical fluid extracts. The full report authored by the PNL researchers is presented here. The following assessment briefly highlights the major findings of the project, and evaluates the potential of the methods for application to coal liquefaction materials. These results will be incorporated by CONSOL into a general overview of the application of novel analytical techniques to coal-derived materials at the conclusion of CONSOL's contract.
Download or read book Gas Abstracts written by and published by . This book was released on 1989 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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