| 학회 | 한국화학공학회 |
| 학술대회 | 2002년 봄 (04/26 ~ 04/27, 강원대학교) |
| 권호 | 8권 1호, p.645 |
| 발표분야 | 분리기술 |
| 제목 | 이산화탄소 흡수를 위한 PVDF와 PTFE중공사막의 물질전달계수의 결정 |
| 초록 | The gas-liquid mass transfer accompanied by chemical reaction was studied in a membrane absorber for the separation of CO2 from mixture gases. The membranes used were made of polytetrafluoroethylene(PTFE) and polyvinylidenefluoride (PVDF) and the aqueous MEA solution was used as an absorbent possessing a high chemical reaction with carbon dioxide. The numerical model for CO2 concentration profile in a fiber was developed, and the influence of its flux on the external mass transfer resistances including gas and membrane was simulated with this numerical model and compared with the experimental results. Experimentally, it is found that absorption rate per surface area was higher in PVDF membrane than that in PTFE membrane because of the non-wetted condition of membrane pore. The membrane pore wetted with an absorbent showed the low absorption performance by high membrane resistance. We could predict the liquid resistance and membrane-gas resistance (external resistance) from experimental and numerical mass transfer coefficient data. |
| 저자 | 연순화, 서봉국, 박유인, 김민정, 이기섭, 이규호 |
| 소속 | 한국화학(연) |
| 키워드 | Carbon dioxide; Gas absorption; Hollow fiber; Membrane contactor; Numerical modeling; Mass transfer coefficienct |
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| 원문파일 | 초록 보기 |
