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Sulfur-specific microbial desulfurization of sterically hindered analogs of dibenzothiophene

Journal Article · · Applied and Environmental Microbiology
OSTI ID:223594
; ;  [1]
  1. Exxon Research and Engineering Co., Annandale, NJ (United States)

Dibenzothiophenes (DBTs) bearing alkyl substitutions adjacent to the sulfur atom, such as 4,6-diethyidibenzothiophene (4,6-DEDBT), are referred to as sterically hindered with regard to access to the sulfur moiety. By using enrichment cultures with 4,6-DEDBT as the sole sulfur source, bacterial isolates which selectively remove sulfur from sterically hindered DBTs were obtained. The isolates were tentatively identified as Arthrobacter species. 4,6-DEDBT sulfone was shown to be an intermediate in the 4,6-DEDBT desulfurization pathway, and 2-hydroxy-3,3`-diethylbiphenyl (HDEBP) was identified as the sulfur-free end product.

OSTI ID:
223594
Journal Information:
Applied and Environmental Microbiology, Journal Name: Applied and Environmental Microbiology Journal Issue: 12 Vol. 61; ISSN AEMIDF; ISSN 0099-2240
Country of Publication:
United States
Language:
English

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