Abstract
Mycobacterium goodii X7B, a facultative thermophilic bacterium, cleaving the C-S bond of dibenzothiophene via a sulfur-specific pathway, was investigated for DBT in tetradecane and crude oil desulfurization. The extent of growth was improved by fed-batch culture controlled at a constant pH. The total sulfur level of dibenzothiophene in tetradecane, was reduced by 99%, from 200 to 2 ppm within 24h at 40 degrees C. After 72 h treatment, 59% of the total sulfur content in Liaoning crude oil was removed, from 3600 to 1478 ppm.
Publication types
-
Research Support, Non-U.S. Gov't
MeSH terms
-
Alkanes / chemistry*
-
Alkanes / metabolism*
-
Biodegradation, Environmental
-
Biphenyl Compounds / pharmacology
-
Catalysis / drug effects
-
Chromatography, Gas
-
Fermentation / drug effects
-
Hydrocarbons / metabolism
-
Mycobacterium / drug effects
-
Mycobacterium / growth & development
-
Mycobacterium / metabolism*
-
Petroleum / metabolism*
-
Sulfur / metabolism*
-
Thiophenes / metabolism*
-
Thiophenes / pharmacology
-
Water
Substances
-
Alkanes
-
Biphenyl Compounds
-
Hydrocarbons
-
Petroleum
-
Thiophenes
-
n-tetradecane
-
Water
-
Sulfur
-
2-phenylphenol
-
dibenzothiophene