Process and installation for regenerating an absorbent solution

Details Process and installation for regenerating an absorbent solution Process and installation for regenerating an absorbent solution

1981-03-31

1983-05-24

Yudkoff, Norman

Refrigeration

Processes

Circulating external gas

62 28, 62 26, 55 68, 48196R, F25J 302

Patent

active

043848753

ABSTRACT:
The present invention relates to a process for regenerating an absorbent solution, for example an aqueous solution of an alkanolamine, containing acid compounds such as CO.sub.2 and/or H.sub.2 S, in which said compounds are released by heating and/or stripped away. The regenerated absorbent solution, drawn off from the regeneration zone, is subject to a plurality of successive expansions with formation of a vapor in the course of each expansion, and the vapor thus formed is gradually compressed to form a compressed vapor, which is introduced into the regeneration zone. Such a process of regeneration with expansion of the regenerated solution is used in the regenerative processes for scrubbing gases containing acid compounds and renders possible an appreciable overall saving of energy.

REFERENCES:
patent: 4088735 (1978-05-01), Bratzler
patent: 4097250 (1978-06-01), Pagani et al.
patent: 4250150 (1981-02-01), Karwat et al.
patent: 4284423 (1981-08-01), Eakman et al.
patent: 4305733 (1981-12-01), Scholz et al.
patent: 4311496 (1982-01-01), Fabian

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