Process and system for low-temperature carbonization of oil shal

Details Process and system for low-temperature carbonization of oil shal Process and system for low-temperature carbonization of oil shal

1989-12-19

1991-02-19

Davis, Curtis R.

Mineral oils: processes and products

By treatment of solid mineral, e.g., coal liquefaction, etc.

Including contact of feed with liquid produced in the...

208430, 208434, 201 28, 201 29, 201 30, 201 31, 201 35, 201 36, 201 37, 201 38, 202 96, 202121, 422140, 422187, 422145, C10G 100

Patent

active

049941747

ABSTRACT:
A process and system for low-temperature carbonization of oil shale, oil sands and similar oil-bearing solids includes low-temperature carbonization of oil-bearing solids in a high-pressure fluidized bed reactor in the presence of a substance selected from the group consisting of hydrogen and steam at temperatures substantially between 400.degree.and 600.degree. C. for producing low-temperature carbonization gas. The low-temperature carbonization gas is condensed in at least two stages for producing relatively higher boiling and relatively lower boiling oil fractions. The oil-bearing solids are peripherally mashed with the higher boiling oil fraction of the low-temperature carbonization gas, before introducing the oil-bearing solids into the high-pressure fluidized bed reactor. The oil-bearing solids mashed with the higher boiling oil fraction are returned to the high-pressure fluidized bed reactor.

REFERENCES:
patent: 2773018 (1956-12-01), Parry
patent: 3018241 (1962-01-01), Gorin
patent: 4104129 (1978-08-01), Fields et al.

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