Liquid absorbing acidic gases and use thereof in diacidification

Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Carbon dioxide or hydrogen sulfide component

Patent

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Details

Other Related Categories

252189, 423229, C01B 320, C09K 300

Type

Patent

Status

active

Patent number

053487141

Description

ABSTRACT:
An absorbent liquid for improved absorption capacity for CO.sub.2 in a gas due to the presence of an activator for CO.sub.2 absorbent from the gas, the absorption liquid comprising a mixture of one or more tertiary alkanolamines and an activator of CO.sub.2 absorption by the tertiary alkanolamine, which activator has the general formula Y--(CpH.sub.2p)--NHZ wherein Y is a monovalent radical selected from the group consisting of piperazyl, piperidinyl, furyl, tetrahy-drothienyl and --OR.sub.2 radicals, Z is an R.sub.2 radical or hydrogen, R.sub.2 is a monovalent hydrocarbon residue, and p is an integer from 1 to 6. Also a process for using such absorbent liquid for improved CO.sub.2 absorption from a gas.

REFERENCES:
patent: 4101633 (1978-07-01), Sartori et al.

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