Numerical Simulation and Analysis of CO2Removal ina Polypropylene Hollow Fiber Membrane Contactor

[摘要] This present study shows a comprehensive 2D numerical model for removal of CO2in a polypropylene (PP) hollow fiber membrane contactor (HFMC) using the computational fluid dynamics (CFD) method. Monoethanolamine (MEA) solution was used as the liquid absorbent in a nonwetting mode. The simulation results represented that higher liquid velocity and concentration and lower gas velocity and concentration led to higher percent of CO2removal. The most proper parameters for CO2removal were less than 1 mol m−3gas concentration and 0.2 m s−1gas flow rate, and for MEA the values were above 8 mol m−3concentration and approximately 1 m s−1liquid velocity. Furthermore, the model was validated with the experiment results. Therefore, the modeling results provided references to the selection of absorbents and operation parameters in the experimental study and pilot-scale applications.

[学科分类] 工业化学