(558bt) Study on Optimal Side Draw Amine Design to Improve the Performance of the Post-Combustion CO2 Capture Processes
AIChE Annual Meeting
2019
2019 AIChE Annual Meeting
Poster Sessions
General Poster Session II
Wednesday, November 13, 2019 - 3:30pm to 5:00pm
The design of a side draw from the stripper to absorber is a promising way to reduce the energy consumption and thus to improve the performance of the post combustion CO2 capture process. However, few studies provide a systematic method for the relevant optimal design and operation. This study employs both steady-state and dynamic modeling and simulation to investigate the best tray position, temperature, and flowrate of the semi-lean amine for the side draw. First, by investigating the solvent on each stage of stripper and the liquid/gas composition on each stage of absorber, the approximate location for side-draw flow inlet and outlet could be roughly identified. Second, multiple simulations will be conducted to obtain the energy saving operating conditions under different side-draw flow designs including different temperature and flowrate of the side-draw stream. Finally, by comparing both steady-state and dynamic simulation results, the optimal design and operation will be identified.