Removal of acidic halides from hot gas streams and attrition reg

Details Removal of acidic halides from hot gas streams and attrition reg Removal of acidic halides from hot gas streams and attrition reg

1994-12-30

1997-07-22

Caldarola, Glenn A.

Mineral oils: processes and products

Refining

With solid catalyst or absorbent

2082621, 208284, 208287, 95132, C07C 712

Patent

active

056500637

ABSTRACT:
Acidic halides, especially chlorides, are removed from a dry fluid stream by contact with dry particles of solid caustic. The solid caustic particles are preferably non-porous, and disposed as a fluidized bed. Salts deposit on the surface of the caustic and are physically removed, preferably by attrition, to regenerate the surface of the solid caustic. An dry, slightly alkaline salt can be the only product of neutralization. Salt coated beds of solid caustic can also be regenerated for reuse by attrition removal of salt deposits.

REFERENCES:
patent: 3060117 (1962-10-01), Payne
patent: 3761534 (1973-09-01), Sun et al.
patent: 4123351 (1978-10-01), Chapman et al.
patent: 4167531 (1979-09-01), Potts
patent: 4938936 (1990-07-01), Yan

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