Patent ID: 8231719
Filing Date: 2012-07-31
Classification: B01D,Y02C

Abstract:
1. An absorbent liquid for removing CO 2 or H 2 S or both from a gas, comprising: a first compound component including at least one member selected from the group consisting of 2-methylaminoethanol, 2-ethylaminoethanol, 2-n-propylaminoethanol, 2-n-butylaminoethanol, 2-n-pentylaminoethanol, 2-isopropylaminoethanol, 2-sec-butylaminoethanol, or 2-isobutylaminoethanol, and a second compound component including at least one member selected from the group consisting of 1-(2-aminoethyl)piperazine and (1-methylaminoethyl)-4-methylpiperazine, wherein the first compound component is contained in an amount in a range from equal to or larger than 15 wt % to equal to or less than 45 wt % and the second compound component is contained in an amount in a range from equal to or larger than 15 wt % to equal to or less than 45 wt %, and a total amount of the first compound component and the second compound component is more than 30 wt % to equal to or less than 90 wt %.