Microbial desulfurization of natural gas
Conference
·
OSTI ID:5408410
It has been demonstrated that the H/sub 2/S content of a gas can be reduced to very low levels by contact with an aerobic or anaerobic culture of Thiobacillus denitrificans if the reactor is operated under sulfide-limiting conditions. Hydrogen sulfide was observed to be an inhibitory substrate; however, upset conditions produced by excess H/sub 2/S feed were readily detected and reversed. Biomass yield is lower under aerobic conditions than anaerobic conditions presumably because of inhibition of growth by oxygen. However, under aerobic conditions the maximum loading of the biomass is 2-3 times higher than that observed for anaerobic conditions. Heterotrophic contamination was shown to have a negligible effect on reactor performance. The use of mixed cultures (T. denitrification and heterotrophs) could simplify a microbial gas desulfurization process by removing the requirement for aseptic operation of the reactor.
- OSTI ID:
- 5408410
- Report Number(s):
- CONF-870822-
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
03 NATURAL GAS
030300* -- Natural Gas-- Drilling
Production
& Processing
AEROBIC CONDITIONS
ANAEROBIC CONDITIONS
BACTERIA
BIOMASS
CHEMICAL REACTION YIELD
CHEMICAL REACTIONS
DESULFURIZATION
ENERGY SOURCES
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
GAS FUELS
GASES
MICROORGANISMS
NATURAL GAS
PERFORMANCE TESTING
RENEWABLE ENERGY SOURCES
TESTING
YIELDS
030300* -- Natural Gas-- Drilling
Production
& Processing
AEROBIC CONDITIONS
ANAEROBIC CONDITIONS
BACTERIA
BIOMASS
CHEMICAL REACTION YIELD
CHEMICAL REACTIONS
DESULFURIZATION
ENERGY SOURCES
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
GAS FUELS
GASES
MICROORGANISMS
NATURAL GAS
PERFORMANCE TESTING
RENEWABLE ENERGY SOURCES
TESTING
YIELDS