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Tseng, Bae-Heng 2014-12-16T20:52:08Z 2014-12-16T20:52:08Z 10000-01-01 1986 1986 Measurement has been made of the organic sulfur concentration in coal macerals of several bituminous coals. Variation of organic sulfur content among the maceral groups is striking. The average organic sulfur content of the major maceral groups has the progression S(exinite) > S(vitrinite) > S(inertinite). The highest concentration of organic sulfur occurs for those macerals with a density around 1.18 gm/cc. This density corresponds to that of sporinite in bituminous coals. Desulfurization study of these coals shows that the removal of organic sulfur increases with increasing temperature. The percentage of organic sulfur removal has nearly the same values regardless of the maceral types. Our measurements were also carried out for pyrite decomposed within a coal matrix. A reaction between pyritic sulfur and the hydrocarbon matrix was detected around 450(DEGREES)C. Made available in DSpace on 2014-12-16T20:52:08Z (GMT). No. of bitstreams: 1 8623426.pdf: 2542407 bytes, checksum: c3b3437141af1624bb28d1f2a3e6e797 (MD5) Previous issue date: 1986 Embargo set by: Seth Robbins for item 72001 Lift date: Forever Reason: Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs U of I Only 107 p. Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 1986. http://hdl.handle.net/2142/71835 (UMI)AAI8623426 Engineering, Metallurgy Direct Measurement of Organic Sulfur Content in Coal Macerals and the Study of Pyrite Decomposition in Coal text Metallurgy and Mining Engineering Metallurgical Engineering University of Illinois at Urbana-Champaign Dissertation Ph.D.