Evaluation of sulfur-reducing microorganisms for organic desulfurization. Final technical report, September 1, 1990--August 31, 1991
Because of substantial portion of the sulfur in Illinois coal is organic, microbial desulfurization of sulfidic and thiophenic functionalities could hold great potential for completing pyritic sulfur removal. We are testing the hypothesis that organic sulfur can be reductively removed as H{sub 2}S through the activities of anaerobic microorganisms. Our objectives for this year include the following: (1) To obtain cultures that will reductively desulfurize thiophenic model compounds. In addition to crude oil enrichments begun last year, we sampled municipal sewage sludge. (2) To continue to work toward optimizing the activity of the DBDS-reducing cultures obtained during the previous year. (3) To expand coal desulfurization work to include other coals including Illinois Basin Coal 101 and a North Dakota lignite, which might be more susceptible to the dibenzyldisulfide reducing cultures due to its lower rank. (4) To address the problem of sulfide sorption, by investigating the sorption capacity of coals in addition to Illinois Basin Coal 108.
- Research Organization:
- Illinois State Univ., Normal, IL (United States). Dept. of Biological Sciences
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- FG22-90PC90176
- OSTI ID:
- 10105708
- Report Number(s):
- DOE/PC/90176--T52; ON: DE92004188
- Country of Publication:
- United States
- Language:
- English
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Evaluation of sulfur-reducing microorganisms for organic desulfurization
Evaluation of sulfur-reducing microorganisms for organic desulfurization
Related Subjects
010402
550700
59 BASIC BIOLOGICAL SCIENCES
ANAEROBIC CONDITIONS
BACTERIA
BIODEGRADATION
BITUMINOUS COAL
COAL
CULTURE MEDIA
DESULFURIZATION
HYDROGEN SULFIDES
MICROBIOLOGY
MICROORGANISMS
ORGANIC SULFUR COMPOUNDS
PROGRESS REPORT
PURIFICATION AND UPGRADING
PYRITE
REDUCTION
SAMPLING
SLUDGES
SULFATES
SULFUR
THIOPHENE
TOLUENE