Mineral oils: processes and products – By treatment of solid mineral – e.g. – coal liquefaction – etc. – Including contact with extraneous additive other than...
Patent
1995-06-06
1996-11-05
Myers, Helane
Mineral oils: processes and products
By treatment of solid mineral, e.g., coal liquefaction, etc.
Including contact with extraneous additive other than...
208429, C10G 104
Patent
active
055714030
ABSTRACT:
An improved process for extracting hydrocarbons from a diatomite ore which comprises the combination of the steps of:
a) Reducing the particle size of the ore to form a processed ore;
b) Grinding the processed ore in an enclosed pin mixer to form pelletized ore;
c) Feeding the pellets into each section of a ROTOCEL.RTM. extractor unit containing 5-8 sections or baskets to form columns of pelletized ore;
d) Distributing a solvent from the top of each column of the ROTOCEL.RTM. extractor and allowing the solvent to permeate the pelletized ore column to form a hydrocarbon-rich solvent stream while leaving behind spent ore mixture;
e) Separating extracting solvent from the hydrocarbon solvent stream to form a hydrocarbon product stream and an extracting solvent stream;
f) Removing the spent ore mixture from the extracting zone;
g) Recycling the extracting solvent; and
h) Recovering the hydrocarbon product.
REFERENCES:
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patent: 4167470 (1979-09-01), Karnofsky
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patent: 4461695 (1984-07-01), Williams
patent: 4571294 (1986-02-01), Friedman et al.
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patent: 4859371 (1989-08-01), Diosady et al.
Hanzlik Edward J.
Scott Thomas G.
Seufert Frederick B.
Bailey James L.
Hunter Cynthia L.
Myers Helane
Priem Kenneth R.
Texaco Inc.
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