Abstract
The effect of the presence of trace SO2 in industrial flue gas on the amine-scrubbing-based absorption process for CO2 capture has been a matter of concern. This study aimed to investigate the effect of trace SO2 on the CO2 capture process using piperazine-based amine absorbents, focusing on SO2 resistance capability, SO2/CO2 absorption selectivity, and cyclic stability. The presence of trace SO2 not only restrains CO2 absorption, but also promotes the formation of carbamate within the piperazine-based amine absorbents. Remarkably, the incorporation of aminoethyl group in piperazine-based amine absorbents can enhance the SO2 resistance capability by promoting the formation of carbamate, while piperazine-based amine absorbents with hydroxyethyl group can promote the formation of bicarbonate to reduce the SO2 resistance capability. The work offers valuable insights into the efficient application of novel amine absorbents for CO2 capture from practical industrial flue gas.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call