Abstract
The separation of CO 2 from flue gas by alcohol amine method was investigated in this paper. We conducted the absorption and desorption experiments using different alcohol amines: monoethanolamine (MEA), diethanolamine (DEA), methyl diethanolamine (MDEA), triethanolamine (TEA), piperazine (PZ), and their binary mixtures. Relevant absorption rate and desorption rate of CO 2 were obtained and reported. Aspen Plus was applied to simulate the process of recovering CO 2 from flue gas via absorption of PZ-MEA solution. The influences of the lean liquid CO 2 load, lean liquid temperature and desorber pressure on the reboiler duty were investigated, and the optimal operating parameters were obtained on the basis of the minimum reboiler duty.
Highlights
Materials and apparatusThe absorbents used in this work are MEA, diethanol amine (DEA), methyl diethanol amine (MDEA) and piperazine (PZ), which are supplied by Sinopharm Chemical Reagent Co., Ltd
Higher temperature will inhibit the absorption as the reaction between MEA and CO2 is exothermic
We systematically studied the separation of CO2 from flue gas using different alcohol amines
Summary
The absorbents used in this work are MEA, diethanol amine (DEA), methyl diethanol amine (MDEA) and piperazine (PZ), which are supplied by Sinopharm Chemical Reagent Co., Ltd.
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