Two phase treatment of gas to remove halogens

Details Two phase treatment of gas to remove halogens Two phase treatment of gas to remove halogens

1994-12-30

1997-03-04

Caldarola, Glenn A.

Mineral oils: processes and products

Fractionation

2082621, 208283, 208286, 208299, 208302, 201 29, 95131, 95132, 95141, 95142, C10G 1900, C10G 2500, B01D 5302, B01D 5926

Patent

active

056075766

ABSTRACT:
Acidic halogens, especially chlorides, are removed from a dry gas stream by contact with dry particles of solid caustic. The solid caustic particles are preferably non-porous, and disposed in a bed with at least a 10% bed interstitial volume. Limiting halogen content in gas, and operating with a bone dry gas, ensures that salts deposit on the surface of the solid caustic without plugging the bed of solid caustic. Efficient halogen removal can be achieved even when treating a bone dry gas, one having less than 10 ppmv water vapor, at ambient temperature, without plugging the bed.

REFERENCES:
patent: 1921116 (1933-08-01), Caldwell
patent: 2034712 (1933-11-01), Dolbear
patent: 2481300 (1949-09-01), Engel
patent: 2658027 (1953-11-01), Hoover
patent: 3457165 (1969-07-01), Urban
patent: 3761534 (1973-09-01), Sun et al.
patent: 3862900 (1975-01-01), Reusser
patent: 4664027 (1987-05-01), Mendiratta et al.
patent: 4992164 (1991-02-01), McCullough et al.
Oil & Gas Journal Item - Merichem Ad - Oct. 1994.
Copies of portions of "Opposers" work.
Lexpat Search - OGJ Sep. 17, 1990.

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