초록 |
Pre-combustion CO2 capture process is a very promising process in that H2 is produced during the CO2 separation. In this study, polybenzoxazole (PBO) membranes were prepared by dehydration of polyhydroxylamide with various acid chloride monomers. TR-PBO has superior thermostability and mechanical properties as well as high gas permeation properties and selectivities, especially for H2/CO2 separation at high temperature, revealing that the TR-PBO membranes derived from polyhydroxyamide can be excellent candidate for hydrogen separation from pre-combustion. |