Patent ID: 11872519
Assignee: SOGANG UNIVERSITY RESEARCH FOUNDATION
Field: Chemical engineering (Chemistry)
Classification: CPC B  Y | IPC B

Claim 0:
1. A carbon dioxide absorbent comprising a triamine, an ether, and water,
wherein the triamine is selected from the group consisting of 2,2′-iminobis (N,N′-dimethylethylamine), N,N-bis[2-(methylamino)ethyl]methylamine, N,N-bis[3-(methylamino)propyl]methylamine, N,N′-(iminobisethylene)bismethanamine, and N,N′-(iminobispropylene)bismethanamine, and
wherein the ether is a tetraalkylene glycol dialkyl ether and selected from the group consisting of tetraethylene glycol dimethyl ether, tetraethylene glycol diethyl ether, tetraethylene glycol dipropyl ether, tetraethylene glycol dibutyl ether, tetrapropylene glycol dimethyl ether, tetrapropylene glycol diethyl ether, tetrapropylene glycol dipropyl ether, and tetrapropylene glycol dibutyl ether,
wherein the ether is contained in an amount of 20 to 40 wt. % with respect to the total weight of the absorbent,
wherein the water is comprised in an amount of 1.0 to 9.0 wt. % with respect to the total weight of the absorbent, and
wherein the triamine is contained in an amount of 50 to 90 wt. % with respect to the total weight of the absorbent.