Abstract
PARAFFINIC hydrocarbons have been proposed as indicators of the conditions obtaining during the deposition and subsequent maturation of sediments1–4. We consider here the relationship between the rank (as measured by carbon content) of coals and analytical results for the alkane fractions obtained by a novel extraction procedure (under investigation for the derivation of liquid fuels and feedstocks from coal5,6) which uses super-critical gases (SCG). We first discuss the limitations of n-alkane distributions and then deal with acyclic isoprenoids, drawing particular attention to the ratio of pristane to phytane.
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References
Maxwell, J. R., Pillinger, C. T. & Eglinton, G. Q. Rev. 25, 571 (1971).
Didyk, B. M., Simoneit, B. R. T., Brassell, S. C. & Eglinton, G. Nature 272, 216 (1978).
Bartle, K. D., Jones, D. W. & Pakdel, H. in Analytical Methods for Coal and Coal Products Vol 2 (ed Karr, C., Jr) 209 (Academic, New York, 1979).
Welte, D. Erdöl Kohle 31, 139 (1978).
Whitehead, J. C. & Williams, D. F. J. Inst. Fuel 48, 182 (1975).
Maddocks, R. R. & Gibson, J. J. Chem. Engng Progr. 59 (1977).
Leythaeuser, D. & Welte, D. H. in Advances in Organic Geochemistry 1968 (eds Schenck, P. A. & Havenaar, I.) 429 (Pergamon, Oxford, 1969).
Brooks, J. D. & Smith, J. W. Geochim. cosmochim. Acta 31, 2389 (1967).
Firth, J. N. & Eglinton, G. in Advances in Organic Geochemistry 1971 (eds von Gaertner, H. R. & Wehner, H.) 613 (Pergamon, London, 1972).
White, C. M., Shultz, J. L. & Sharkey, A. G. Jr, Nature 268, 620 (1977).
Bartle, K. D., Martin, T. G. & Williams, D. F. Fuel 54, 226 (1975).
Bartle, K. D., Jones, D. W. & Pakdel, H. in Molecular Spectroscopy (ed. West, A. R.) 127 (Heyden, London, 1977).
Bartle, K. D., Ladner, W. R., Snape, C. E., Martin, T. G. & Williams, D. F. Fuel (submitted).
Kershaw, J. R. S. Afr. J. Chem. 30, 205 (1977).
Bartle, K. D., Jones, D. W., Martin, T. G. & Wise, W. S. J. appl. Chem. 20, 197 (1970).
Vahrman, M. Fuel 49, 5 (1970).
Allan, J. thesis, Univ. Newcastle-upon-Tyne (1972).
Brooks, J. D., Gould, K. & Smith, J. W. Nature 222, 257 (1969).
Connan, J. in Advances in Organic Geochemistry 1973 (eds Tissot, B. & Bienner, F.) 73 (Technip, Paris, 1974).
Albrecht, P., Vanderbroucke, M. & Mandengue, M. Geochim. cosmichim. Acta 40, 791 (1976).
Teichmüller, M. in Advances in Organic Geochemistry 1973 (eds Tissot, B. & Bienner, F.) 379 (Technip, Paris, 1974).
Powell, T. G. & McKirdy, D. M. Bull. Am. Ass. Petrol. Geol. 59, 1176 (1975).
Given, P. H. in Advances in Organic Geochemistry 1971 (eds von Gaertner, H. R. & Wehner, H.) 69 (Pergamon, London, 1972).
Long, C. (ed.) Biochemists Handbook (Spon, London, 1961).
Merrill, R. C., Scotti, L. J., Ford, L. & Domina, D. J. in Coal Processing Technology 2, 88 (American Institute of Chemical Engineers, New York, 1975).
Gibson, J. & Gregory, D. H. Carbonisation of Coal ch. 4 (Mills and Boon, London, 1971).
Bartle, K. D., et al. Fuel (submitted).
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BARTLE, K., JONES, D., PAKDEL, H. et al. Paraffinic hydrocarbons from supercritical-gas extracts of coal as organic geochemical markers. Nature 277, 284–287 (1979). https://doi.org/10.1038/277284a0
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DOI: https://doi.org/10.1038/277284a0
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