Indexed by:期刊论文

Date of Publication:2022-06-29

Journal:现代化工

Issue:2

Page Number:70-73

ISSN No.:0253-4320

Abstract:A study of carbon dioxide absorption and regeneration in aqueous amine solutions,consisting of 20wt% of 2-(aminoethylamino) ethanol (AEE)+2wt% N-methyldiethanolamine (MDEA) and 20wt% of monoethylamino(MEA)+ 2wt% MDEA has been carried out in a packed tower.The results show that the effect of CO_2 absorption in the absorbent composed of AEE+MDEA is better than that in absorbent composed of MEA+MDEA,and the effect of CO_2 desorption of the two is similar.Also,the volumetric overall mass transfer coefficient (K_Ga_v) of dilute CO_2 absorption into AEE+MDEA is measured.The influence factors of CO_2 mole flow rate in inlet gas,gas flow rate and liquid flow rate on K_Ga_v value is evaluated.The result indicate that the K_Ga_v can be remarkably improved by increasing CO_2 molar flow rate in inlet gas,gas flow rate and liquid flow rate.

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