Process for breaking emulsions in a tar-containing aqueous conde

Details Process for breaking emulsions in a tar-containing aqueous conde Process for breaking emulsions in a tar-containing aqueous conde

1976-03-04

1977-12-27

Adee, John

Gas separation

Means within gas stream for conducting concentrate to collector

55228, 55 85, B01D 4700

Patent

active

040652734

ABSTRACT:
Gravity separation process for removing tar from water in a condensate formed by the cooling of a raw gas produced by the gasification or dry distillation of solid fuel such as coal. The tar and water condensate formed by cooling the raw gas to about 100.degree. C is enriched in a tar-water separator with ammonium carbonate to a concentration of least 5 grams NH.sub.3 per kg H.sub.2 O. The cooling can be carried out in a plurality of stages with the hotter condensate from at least one of the first cooling stages being mixed at a weight ratio of 10:1 to 1:2 with colder condensate from at least one of the succeeding cooling stages.

REFERENCES:
patent: 2224228 (1940-12-01), Lunn et al.
patent: 2761563 (1956-09-01), Waterman et al.
patent: 2817411 (1957-12-01), Coberly
patent: 3620971 (1971-11-01), Plumber

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