Process for recovering acidic gases

Details Process for recovering acidic gases Process for recovering acidic gases

1988-05-06

1989-09-26

Hart, Charles

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Carbon dioxide or hydrogen sulfide component

55 68, B01D 5514

Patent

active

048698849

ABSTRACT:
An improved process is provided for the removal and recovery of acidic gases contained in mixed gas streams. The improvements comprise cooling a process regenerated aqueous alkanolamine solution containing an alkanolamine concentration ranging up to about 20 percent by weight to a temperature ranging up to about 35.degree. C. and introducing said cooled regenerated solution into an absorption zone to contact a mixed gas stream containing acidic gases and wherein the regenerated aqueous alkanolamine solution remains essentially at the temperature to which it is cooled throughout a substantial portion of the absorption zone.

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patent: 4437419 (1984-10-01), Peorce et al.
patent: 4452763 (1984-06-01), Von de Kraals et al.
patent: 4624839 (1986-11-01), Wolcott et al.
patent: 4708721 (1987-11-01), Ehrler
patent: 4714597 (1987-12-01), Trevino
Kirk-Othmer Encyclopedia of Chemical Technology, 2ed, vol. 1 pp. 821-822.
Kirk-Othmer Encyclopedia of Chemical Technology, 2ed, vol. 4 357, 358, 362.

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