Process for defoaming acid gas scrubbing solutions and defoaming

Details Process for defoaming acid gas scrubbing solutions and defoaming Process for defoaming acid gas scrubbing solutions and defoaming

1979-12-21

1982-08-17

Schofer, Joseph L.

Compositions

Co, s, negative element, or acid, bindant containing

Alkali-metal or alkali-metal compound containing

252189, 252190, 252358, 423226, 423228, 423232, C09K 300

Patent

active

043448631

ABSTRACT:
The foam in acid gas scrubbing solutions created during an acid gas scrubbing process is reduced or eliminated by the addition of certain polyoxyethylene polyoxypropylene block cpolymers as defoaming agents. The defoaming agents are particularly effective when the acid gas scrubbing solution contains an amine having a large hydrophobic moiety.

REFERENCES:
patent: 2176441 (1939-10-01), Ulruch et al.
patent: 3071433 (1963-01-01), Dunn
patent: 3642430 (1972-02-01), Benson
patent: 3848057 (1974-11-01), Leder et al.
patent: 3862243 (1975-01-01), Bellos
patent: 3943227 (1976-03-01), Schutze
patent: 4112050 (1978-09-01), Sartori et al.
patent: 4112051 (1978-09-01), Sartori et al.
patent: 4112052 (1978-09-01), Sartori et al.
"The Wonderful World of Pluronics Polyols", BASF Wyandotte Corporation, Wyndotte, Michigan, 1972, pp. 4-7, 12 & 13.

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