Biodesulfurization of DBT in tetradecane and crude oil by a facultative thermophilic bacterium Mycobacterium goodii X7B.
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.
Li
Fuli
F
State Key Laboratory of Microbial Technology, Shandong University, Jinan 250100, PR China.
Zhang
Zhengzhi
Z
Feng
Jinhui
J
Cai
Xiaofeng
X
Xu
Ping
P
D000473:Alkanes / Q000737:chemistry* / Q000378:metabolism*; D001673:Biodegradation, Environmental; D001713:Biphenyl Compounds / Q000494:pharmacology; D002384:Catalysis / Q000187:drug effects; D002849:Chromatography, Gas; D005285:Fermentation / Q000187:drug effects; D006838:Hydrocarbons / Q000378:metabolism; D009161:Mycobacterium / Q000187:drug effects / Q000254:growth & development / Q000378:metabolism*; D010578:Petroleum / Q000378:metabolism*; D013455:Sulfur / Q000378:metabolism*; D013876:Thiophenes / Q000378:metabolism* / Q000494:pharmacology; D014867:Water
D000473:Alkanes; D001713:Biphenyl Compounds; D006838:Hydrocarbons; D010578:Petroleum; D013876:Thiophenes; C024713:n-tetradecane; D014867:Water; D013455:Sulfur; C004369:2-phenylphenol; C016366:dibenzothiophene