by Illinois Dept. of Energy and Natural Resources, Illinois State Geological Survey in Champaign, Ill .
Written in English
|Statement||Richard D. Harvey [and] Ilham Demir|
|Series||Open file series (Illinois State Geological Survey) -- 1992-1, Open file series (Illinois State Geological Survey) -- 1992-1.|
|Contributions||Demir, Ilham, Ho, Ken K., Illinois. Dept. of Energy and Natural Resources, Illinois State Geological Survey, Illinois Coal Research Board, Center for Research on Sulfur in Coal|
|The Physical Object|
|Pagination||21 p. :|
|Number of Pages||21|
Characterization of organic sulfur in macerals and chars. Characterization of organic sulfur in macerals and chars: Author(s): Harvey, Richard David; Demir, Ilham; Ho, Ken K. Contributor(s): Illinois Department of Energy and Natural Resources; Illinois State Geological Survey; Illinois Coal Research Board; Center for Research on Sulfur in Coal: Subject(s): Organosulfur compounds. Char. : Richard David Harvey, Ilham Demir, Ken K. Ho. Characterization of the organic sulfur in macerals and chars: Author(s): Harvey, Richard David; Demir, Ilham; Banerjee, Daniel D. Contributor(s): Illinois State Geological Survey: Subject(s): Organosulfur compounds. Char. Maceral. Coal -- Composition. Coal -- Sulfur content. Sulfur. Issue Date: Publisher: Champaign, Ill.: Illinois State Geological Survey. Characterization of the organic sulfur in macerals and chars. By Richard David Harvey, Ilham Demir and Daniel D. Banerjee. Get PDF (1 MB) Abstract. Cover pal investigator: Richard D. -investigator: Ilham t monitor: Daniel D. technical report: September 1, through Aug Includes.
Characterization of organic sulfur in macerals and chars. By Richard David Harvey, Ilham Demir and Ken K. Ho. Get PDF (1 MB) Abstract "November "Project monitor: Dr. Ken K. report to the Coal Research Board, Illinois Department of Energy and Natural Resources through the Center for Research on Sulfur in ct Different macerals have different distributions and types of organic sulfur species. 2). Organic sulfur compounds in coal occur at the ends of macromolecular structures. 3). Maceral separation techniques do not affect organic sulfur species in coal. 4). Maceral separation is essential for the chemical characterization of coal. 5). Determinations of organic sulfur concentrations were made at locations within macerals, mostly vitrinite, around grains of pyrite and at 50 locations around 5 pores in chars. The pyrite considered here is restricted to the disseminated type within macerals. These results fur- ther show that the organic sulfur remaining in the chars is made up of approx. 18% sulfur which was originally pyritic sulfur (Table 3). The isotope data provide an independent confirmation for the SEM-EDX results; that is, some of the pyritic sulfur released from pyrite grains during charring at moved into and was captured by the adjacent organic matrix.
The organic nitrogen chemistry of coal appears to be much more complex than the organic sulfur chemistry. e) Between 20–40% of the organic sulfur in these coals may have a methyldisulfide or simple thiophene structure. f) Maceral separation allows for a more detailed study of organic sulfur and nitrogen compounds to be made. The Raša coal has been recognized for its unusually high (superhigh) organic sulfur content and the consequent properties of the coal, such as an anomalously high thermoplasticity for the high volatile B bituminous (% R max) coal rank. The sample studied here had % organic sulfur out of % total sulfur (both on ash basis). Project Title: CHARACTERIZATION OF ORGANIC SULFUR IN MACERALS AND CHARS Principal Investigator: Co-investigator: Project Monitor: Richard D. Harvey, ISGS Ilham Demir, ISGS Ken K. Ho ABSTRACT The overall objective of this project is to determine the spatial. Ultrafine Mineral Associations in Superhigh-Organic-Sulfur Kentucky Coals. ACS Omega , 3 (9), DOI: /acsomega.8b Dipu Borah. Desulfurization of Organic Sulfur from a Subbituminous Coal by Electron-Transfer Process with K4[Fe(CN)6].