Patent · US Expired

Method of scrubbing acid gases from gas mixtures

US4279872A · kind A · utility

1Cited by

3References

7Claims

0Family size

Assignee

Linde GmbH · DE

Inventors

Eberhard Lassmann · Pullach, DE
Peter Kohler · Djursholm, SE
Franz Beran · Munich, DE
Hans J. Gerhards · Munich, DE

Key dates

Filing date	Sep 10, 1979
Grant date	Jul 21, 1981
Priority date	—
Expiry date	Sep 10, 1999

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC10K1/143
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A process for scrubbing acid gases, especially carbon dioxide, from gas mixtures with an aqueous amine solution serving as the scrubbing liquid in which hexamethylene diamine serves as the amine. The concentration of the hexamethylene diamine in the aqueous solution is 5 to 40% by weight, preferably 25 to 35% by weight.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.