The identification of crocetane in Australian crude oils
MetadataShow full item record
Journal home page at: https://www.journals.elsevier.com/organic-geochemistry. Copyright © 2001 Elsevier B.V. All rights reserved.
AbstractThe C20 irregular isoprenoid crocetane (2,6,11,15-tetramethylhexadecane) has been unambiguously identified in a series of Western Australian crude oils from the Canning (Ordovician/Devonian) and Perth (Lower Triassic) Basins. PMI (2,6,10,15,19-pentamethylicosane) was found to co-occur with crocetane in the same samples. In addition, a newly observed series of C22-C24 irregular isoprenoids possessing the same carbon skeleton have also been tentatively identified in each of these crude oils on the basis of GC retention times and mass spectral characteristics. This may indicate a source for crocetane, in the Canning and Perth Basin crude oils, from the diagenesis of PMI. The stable carbon isotopiccomposition for combined crocetane/phytane in these samples suggests crocetane is not unusually depleted in 13C compared with all previous reports. This is the first reported occurrence of biomarkers attributable to methanogenic archaea in crude oils.
Showing items related by title, author, creator and subject.
Ioppolo-Armanios, Marisa (1996)Analytical procedures have been developed for the quantitative analysis of phenols in crude oils and sedimentary rock pyrolysates and extracts. The procedures involve isolation of the phenolic components of the sedimentary ...
Synthesis of PMMA/modified graphene oxide nanocomposite pour point depressant and its effect on the flow properties of Indian waxy crude oilSharma, R.; Mahto, V.; Vuthaluru, Hari (2019)Application of Polymeric nanocomposites as pour point depressant (PPD) for crude oil has opened the doors for a new area of research in the petroleum industry. In this research work, a polymer nanocomposite Poly(methyl ...
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 ...