Chemistry: analytical and immunological testing – Geochemical – geological – or geothermal exploration – For petroleum oils or carbonaceous minerals
Patent
1984-05-31
1987-04-21
Schor, Kenneth M.
Chemistry: analytical and immunological testing
Geochemical, geological, or geothermal exploration
For petroleum oils or carbonaceous minerals
436141, 436158, 436175, 436178, G01N 3324
Patent
active
046596755
ABSTRACT:
The present invention provides for on-site capture of methane at sea at dry ice temperature, for isotopic examination. In more detail, after interfering gas species have been removed from subsequent operational steps, the methane is oxidized to carbon dioxide and water vapor, which are then trapped with a trapping tube maintained at dry ice temperature. The tube also houses a bed of granules made of porous polymer cross-linked to form a lattice network for retention of the carbon dioxide without a change in phase. Thereafter, the carbon and deuterium distribution of the oxidized methane products, carbon dioxide and water vapor, are determined by isotopic examination so as to establish their biogenic and/or thermogenic origin.
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Demaison Gerard J.
Kaplan Isaac R.
Chevron Research Company
Keeling E. J.
LaPaglia S. R.
Messner H. D.
Schor Kenneth M.
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