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U.S. Department of Energy
Office of Scientific and Technical Information

Acid treatment of kerogen-agglomerated oil shale

Patent ·
OSTI ID:5434822
This patent describes a method of upgrading kerogen-agglomerated oil shale. It comprises: contacting oil shale with a two-phase mixture comprising an added organic liquid and water to form kerogen-rich agglomerates and mineral-rich particles; separating the kerogen-rich agglomerates from the mineral-rich particles and water utilizing at least one screen, the screen having a size that prevents passage fa the kerogen-rich agglomerates and allows for passage fa the mineral-rich particles and water, thereby producing solid, kerogen-rich agglomerates, and contacting the solid, kerogen-rich agglomerates with an acid-containing solution having a pH of less than about 3 to form acid-treated, kerogen-rich agglomerates.
Assignee:
Amoco Corp., Chicago, IL (United States)
Patent Number(s):
A; US 5091076
Application Number:
PPN: US 7-434916
OSTI ID:
5434822
Country of Publication:
United States
Language:
English