Liquid absorbant of acid gases containing a tertiary alcanolamin compound and an absorption activator for CO2 and its use for the deacidification of CO2 and possibly other acid gases

摘要

An absorbent liquid for improved absorption capacity for CO2 in a gas due to the presence of an activator for CO2 absorbent from the gas, the absorption liquid comprising a mixture of one or more tertiary alkanolamines and an activator of CO2 absorption by the tertiary alkanolamine, which activator has the general formula Y-(CpH2p)-NHZ wherein Y is a monovalent radical selected from the group consisting of piperazyl, piperidinyl, furyl, tetrahy-drothienyl and -OR2 radicals, Z is an R2 radical or hydrogen, R2 is a monovalent hydrocarbon residue, and p is an integer from 1 to 6. Also a process for using such absorbent liquid for improved CO2 absorption from a gas.