Process for the recovery of shale oil, heavy oil, kerogen or tar from their natural sources
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United States of America Patent
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Dec 6, 1983
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N/A
app pub date -
Oct 22, 1981
filing date -
Dec 23, 1980
priority date (Note) -
Expired
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Abstract
A method of recovering hydrocarbon substances such as oil and tar from naturally occurring mineral matter such as oil shale and young coal ranks, which comprises subjecting the natural mineral product to microwave irradiation in a pressure vessel through which an expelling medium is passed. The expelling medium can be gaseous or liquefied carbon dioxide containing natural or mixed gases, hydrocarbon-containing gas, vapor or liquid and gaseous or vapor-halogenated hydrocarbons.
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