Oil shale upgrading process

Details Oil shale upgrading process Oil shale upgrading process

1980-12-24

1982-09-07

Hill, Ralph J.

Classifying, separating, and assorting solids

Special applications

209 17, 2091725, 208 11R, 208 11LE, 241 24, 241 77, B03B 902

Patent

active

043482740

ABSTRACT:
A size fraction of oil shale is upgraded by separating the shale into a first low density fraction containing particles relatively rich in kerogen and a first high density fraction containing particles relatively lean in kerogen, crushing the first low density fraction to produce smaller particles, separating the smaller particles into a second low density fraction and a second high density fraction and recovering the second low density fraction as high grade oil shale rich in kerogen.

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