Selective absorption of SO.sub.2 from gases containing the same

Details Selective absorption of SO.sub.2 from gases containing the same Selective absorption of SO.sub.2 from gases containing the same

1983-12-19

1985-07-23

Nozick, Bernard

Gas separation

Means within gas stream for conducting concentrate to collector

55 73, B01D 4700

Patent

active

045307040

ABSTRACT:
There is disclosed a process for selectively removing and recovering sulfur dioxide from a gas stream containing the same by contacting the gas with an absorbent (an aqueous solution of a piperazine, piperazinone or a morpholinone) and thermally regenerating the absorbent (i.e. releasing the sulfur dioxide from the absorbent) for reuse in the contacting step.

REFERENCES:
patent: 3856921 (1974-12-01), Shrier et al.
patent: 4112049 (1978-09-01), Bozzelli et al.
patent: 4336223 (1982-06-01), Appl et al.

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