Biogas produced in anaerobic digestion process has been considered as a renewable energy source. To recover biogas from the anaerobic effluent and thereby maximize the energy recovery from anaerobic processes, membrane contactor employing hydrophobic porous hollow fiber membrane has been applied. By optimizing the surface hydrophobicity and the porosity of membranes, a desirable CH4 flux could be achieved. Biogas recovered can be upgraded by applying required purification processes for the injection into natural gas grid or for the use as vehicle fuel. My group has synthesized various microporous materials including zeolites, metal-organic frameworks (MOFs) and amine-appended sorbents that are selectively transport CO2 molecule and incorporated them into polymeric films to design high performance gas separation membranes.

• 배태현(싱가포르 난양공대 화학생물공학부, 싱가포르 분리막 연구센터) | Tae-Hyun Bae