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Role of minerals in the thermal alteration of organic matter. I - Generation of gases and condensates under dry conditionPyrolysis experiments conducted at 200 and 300 C on kerogen and bitumen from the Monterey formation and on the Green River Formation kerogen with montmorillonite, illite, and calcite added are described. The pyrolysis products are identified and gas and condensate analyses are performed. A catalytic effect is detected in the pyrolysis of kerogen with montmorillonite; however, illite and calcite display no catalytic activity. The increased production of C1-C6 hydrocarbons and the dominance of branched hydrocarbons in the C4-C6 range reveals a catalytic influence. It is observed that the catalysis of montmorillonite is greater during bitumen pyrolysis than for kerogen, and catalysis with minerals affects the production of CO2. It is concluded that a mineral matrix is important in determining the type and amount of gases and condensates forming from organic matter under thermal stress.
Document ID
19860040907
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Tannenbaum, E.
(California Univ. Los Angeles, CA, United States)
Kaplan, I. R.
(California, University Los Angeles, United States)
Date Acquired
August 12, 2013
Publication Date
December 1, 1985
Publication Information
Publication: Geochimica et Cosmochimica Acta
Volume: 49
ISSN: 0016-7037
Subject Category
Geophysics
Accession Number
86A25645
Funding Number(s)
CONTRACT_GRANT: NGR-05-007-221
Distribution Limits
Public
Copyright
Other

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