화학공학소재연구정보센터
Petroleum Chemistry, Vol.58, No.4, 330-337, 2018
Carbon Dioxide Desorption from Amine Solution in a Nonporous Membrane Contactor
Long-term testing of a membrane contactor based on a blend of the nonporous polymers polytrimethylsilylpropyne (PTMSP) and polyvinyltrimethylsilane (PVTMS) has been carried out. The flat-sheet membrane contactor has been tested for CO2 desorption from an aqueous methyldiethanolamine solution at 100A degrees C. It has been found that the mass transfer parameters (CO2 flux and stripping efficiency) of the 95%PTMSP/5%PVTMS membrane stabilize after the 7th day of testing. The CO2 mass transfer coefficient in the membrane contactor has been evaluated, and optimal desorption parameters have been determined.