Separation of tars, oils and inorganic constituents from oil bearing sands or shales
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United States of America Patent
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Oct 15, 2002
Grant Date -
N/A
app pub date -
Aug 22, 2000
filing date -
Oct 13, 1998
priority date (Note) -
Expired
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Abstract
An improved process for the total separation and recovery of four constituents, namely, 1) insoluble pitches and tars also known as asphaltenes, 2) a kerosene based oil fraction, 3) clays and silts of less than 80 .mu.m mesh and 4) sands of greater than 80 .mu.m mesh. Recombination of the hydrocarbon fractions is the bitumen portion of tar sands. A further process for the extraction and separation of plant resins from cellulose and kerogen from oil shale that on thermal depolymerization become a source for aromatic and kerosene based oil fractions respectively.
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