Coal desulfurization through reverse micelle biocatalysis process
Conference
·
· Prepr. Pap., Am. Chem. Soc., Div. Fuel Chem.; (United States)
OSTI ID:5969928
A novel bioprocess using micelle biocatalysis has been attempted to minimize several disadvantages of conventional microbial coal desulfurization scale-up processes. The reverse micelle biocatalysis process consists of a water-immiscible organic medium, a surfactant, an aqueous phase and sulfur-oxidizing bacteria or enzymes. This process has been successful for removing sulfur from bituminous coal (Illinois coal 5). The preliminary results showed that coal desulfurization through the use of cell-free enzyme extracts of Thiobacillus ferrooxidans ATCC 19859 was better than that of bacteria itself. The use of enzymes has shown potential for commercial coal desulfurization process as well. This same process is being applied to the thermophillic bacteria Sulfolobus acidocaldarius ATCC 33909. The implications of these experimental results are discussed, including a hypothetical mechanism using reverse micelle biocatalytical process for coal desulfurization.
- Research Organization:
- Univ. of Southern California, Los Angeles (USA)
- OSTI ID:
- 5969928
- Report Number(s):
- CONF-8809269-
- Conference Information:
- Journal Name: Prepr. Pap., Am. Chem. Soc., Div. Fuel Chem.; (United States) Journal Volume: 33:4
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
01 COAL, LIGNITE, AND PEAT
010402* -- Coal
Lignite
& Peat-- Purification & Upgrading
BACILLUS
BACTERIA
BIODEGRADATION
BITUMINOUS COAL
BLACK COAL
CARBONACEOUS MATERIALS
CATALYSIS
CHALCOGENIDES
CHEMICAL REACTIONS
COAL
DECOMPOSITION
DESULFURIZATION
ENERGY SOURCES
ENZYMES
FOSSIL FUELS
FUELS
IRON COMPOUNDS
IRON SULFIDES
MATERIALS
MICROORGANISMS
MINERALS
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OXYGEN COMPOUNDS
PYRITE
SULFATES
SULFIDE MINERALS
SULFIDES
SULFUR COMPOUNDS
SULFUR CONTENT
SULFUR-OXIDIZING BACTERIA
THERMOPHILIC CONDITIONS
THIOBACILLUS FERROXIDANS
TRANSITION ELEMENT COMPOUNDS
010402* -- Coal
Lignite
& Peat-- Purification & Upgrading
BACILLUS
BACTERIA
BIODEGRADATION
BITUMINOUS COAL
BLACK COAL
CARBONACEOUS MATERIALS
CATALYSIS
CHALCOGENIDES
CHEMICAL REACTIONS
COAL
DECOMPOSITION
DESULFURIZATION
ENERGY SOURCES
ENZYMES
FOSSIL FUELS
FUELS
IRON COMPOUNDS
IRON SULFIDES
MATERIALS
MICROORGANISMS
MINERALS
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OXYGEN COMPOUNDS
PYRITE
SULFATES
SULFIDE MINERALS
SULFIDES
SULFUR COMPOUNDS
SULFUR CONTENT
SULFUR-OXIDIZING BACTERIA
THERMOPHILIC CONDITIONS
THIOBACILLUS FERROXIDANS
TRANSITION ELEMENT COMPOUNDS