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    Geosynthesis of dibenzothiophene and alkyl dibenzothiophenes in crude oils and sediments by carbon catalysis

    Access Status
    Fulltext not available
    Authors
    Asif, M.
    Alexander, Robert
    Fazeelat, T.
    Pierce, K.
    Date
    2009
    Type
    Journal Article
    
    Metadata
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    Citation
    Asif, M. and Alexander, R. and Fazeelat, T. and Pierce, K. 2009. Geosynthesis of dibenzothiophene and alkyl dibenzothiophenes in crude oils and sediments by carbon catalysis. Organic Geochemistry. 40 (8): pp. 895-901.
    Source Title
    Organic Geochemistry
    DOI
    10.1016/j.orggeochem.2009.04.016
    ISSN
    0146-6380
    School
    Department of Chemistry
    URI
    http://hdl.handle.net/20.500.11937/18342
    Collection
    • Curtin Research Publications
    Abstract

    Sediment extracts and crude oils have been shown to contain methyl substituted biphenyls and dibenzothiophenes, with isomer distributions suggesting a geochemical relationship between the two compound classes. Laboratory simulation experiments have shown that carbon catalyses the reaction between surface adsorbed sulfur and biphenyl to form dibenzothiophene. Similarly, the methyl substituted biphenyls reacted to yield corresponding methyl dibenzothiophenes. We suggest that the widespread distribution of dibenzothiophene and alkylated dibenzothiophenes in sediments and crude oils is the result of a catalytic reaction of biphenyl ring systems and surface-adsorbed sulfur on the surface of carbonaceous material. © 2009 Elsevier Ltd. All rights reserved.

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