Curtin University Homepage
  • Library
  • Help
    • Admin

    espace - Curtin’s institutional repository

    JavaScript is disabled for your browser. Some features of this site may not work without it.
    View Item 
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item

    Formation and reactions of alkyl adamantanes in sediments: Carbon surface reactions

    Access Status
    Fulltext not available
    Authors
    Berwick, Lyndon
    Alexander, Robert
    Pierce, Kieran
    Date
    2011
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Berwick, Lyndon and Alexander, Robert and Pierce, Kieran. 2011. Formation and reactions of alkyl adamantanes in sediments: Carbon surface reactions. Organic Geochemistry 42 (7): pp. 752-761.
    Source Title
    Organic Geochemistry
    DOI
    10.1016/j.orggeochem.2011.05.008
    ISSN
    01466380
    School
    Department of Applied Chemistry
    URI
    http://hdl.handle.net/20.500.11937/16667
    Collection
    • Curtin Research Publications
    Abstract

    Diamondoids are hydrocarbons with a carbon skeleton that is superimposable on the diamond lattice. Adamantane is the cage-shaped primary unit of diamondoids and occurs widely in sediments and petroleum. The first report of adamantane isolated from petroleum extends back seven decades, but the precursors and reaction mechanisms for the formation of adamantane and related diamondoids in sediments has remained unclear. We report the formation of alkyl adamantanes by heating beta-ionone with activated carbon in closed system pyrolysis experiments in the range 170-320 C. In addition, hydrogen exchange, demethylation, methyl transfer and isomerisation reactions were observed when the model compounds adamantane and 1,3-dimethyladamantane were heated at moderate temperature with activated carbon. A reaction pathway for the formation and reactions of alkyl adamantanes is proposed on the basis of ring isomerisation of adamantane to protoadamantane on the activated carbon surface. The carbonaceous surface reactions described help account for the occurrence and distribution of alkyl adamantanes in petroleum basins, as evidenced by the strong linear relationships between compound pairs related by isomerisation and demethylation for a set of crude oils from the Carnarvon Basin, Western Australia.

    Related items

    Showing items related by title, author, creator and subject.

    • Characterisation of aquatic natural organic matter by micro-scale sealed vessel pyrolysis
      Berwick, Lyndon (2009)
      The analytical capacity of MSSV pyrolysis has been used to extend the structural characterisation of aquatic natural organic matter (NOM). NOM can contribute to various potable water issues and is present in high ...
    • Studies of the saturate and aromatic hydrocarbon unresolved complex mixtures in petroleum
      Warton, Benjamin (1999)
      This thesis reports the results of investigations carried out into the composition of the saturate and aromatic unresolved complex mixtures (UCMs) in crude oils. It is divided into two sections. Section A reports on studies ...
    • Diamondoid naphthenic acids cause in vivo genetic damage in gills and haemocytes of marine mussels
      Dissanayake, A.; Scarlett, Alan; Jha, A. (2016)
      Diamondoids are polycyclic saturated hydrocarbons that possess a cage-like carbon skeleton approaching that of diamond. These ‘nano-diamonds’ are used in a range of industries including nanotechnologies and biomedicine. ...
    Advanced search

    Browse

    Communities & CollectionsIssue DateAuthorTitleSubjectDocument TypeThis CollectionIssue DateAuthorTitleSubjectDocument Type

    My Account

    Admin

    Statistics

    Most Popular ItemsStatistics by CountryMost Popular Authors

    Follow Curtin

    • 
    • 
    • 
    • 
    • 

    CRICOS Provider Code: 00301JABN: 99 143 842 569TEQSA: PRV12158

    Copyright | Disclaimer | Privacy statement | Accessibility

    Curtin would like to pay respect to the Aboriginal and Torres Strait Islander members of our community by acknowledging the traditional owners of the land on which the Perth campus is located, the Whadjuk people of the Nyungar Nation; and on our Kalgoorlie campus, the Wongutha people of the North-Eastern Goldfields.