Characterization of Desulfurization Extracts from Midwestern U.S. Coals
Coals from Midwestern States were extracted using two different processes, viz., a supercritical extraction process and a perchloroethylene coal refining process. The objectives of these processes are the selective removal of sulfur and nitrogen compounds from high-sulfur coals. The solvent extracts were analyzed using gas chromatography/mass spectrometry as well as wet chemical analysis. The extracted organosulfur compounds varied, depending upon the extraction process, extraction conditions, type of solvent, type of coal, and degree of weathering. The experimental results are compared among the types of coal as well as among the different processes, from viewpoints of chemical and molecular interaction.
S. Lee and K. L. Fullerton, "Characterization of Desulfurization Extracts from Midwestern U.S. Coals," Fuel Science and Technology International, Taylor & Francis, Jan 1992.
The definitive version is available at http://dx.doi.org/10.1080/08843759208916039
Chemical and Biochemical Engineering
Article - Journal
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