Oil shale retort flue gas cooling and cleaning

Details Oil shale retort flue gas cooling and cleaning Oil shale retort flue gas cooling and cleaning

1977-07-18

1978-02-28

Novosad, Stephen J.

Mining or in situ disintegration of hard material

Tunnel recovery of fluid material

166 57, 166256, E21C 4110, E21B 4324

Patent

active

RE0295531

ABSTRACT:
A technique is provided for cooling the flue gas or off gas from the bottom of an in situ oil shale retort. The gas is collected in a conduit that has a vertical portion through which the gas flows upwardly. It is then withdrawn from the retort through a gas tight bulkhead. Water is sparged downwardly through the vertical portion of the conduit for cooling and cleaning the gas. Means are provided for draining the sparged water into a sump at the bottom of the retort wherein oil and water are collected. Water and oil are separated and the water may be recycled for additional cooling.

REFERENCES:
patent: 1867758 (1932-07-01), Ranney
patent: 2481051 (1949-09-01), Uren
patent: 3013609 (1961-12-01), Brink
patent: 3228471 (1966-01-01), Shook
patent: 3240270 (1966-03-01), Marx
patent: 3283814 (1966-11-01), Schlicht et al.
patent: 3486327 (1969-12-01), Poincet et al.
patent: 4004982 (1977-01-01), Jennings et al.
patent: 4014575 (1977-03-01), French et al.

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