| 학회 | 한국화학공학회 |
| 학술대회 | 2008년 가을 (10/23 ~ 10/24, 부산 BEXCO) |
| 권호 | 14권 2호, p.2396 |
| 발표분야 | 고분자 |
| 제목 | Proton exchange membrane for SO2 depolarized electrolyzer from hybrid sulfur process |
| 초록 | As the fuel cell technology has been advanced, the demands for hydrogen are increasing. So it is necessary to develop more efficient methods to produce hydrogen. In thermochemical cycles, all other chemical species in these reactions are recycled resulting in the consumption of only heat and water. Among the thermochemical cycles, Hybrid sulfur cycle has SO2 depolarized electrolyzer, and it has also proton exchange membrane as fuel cells. Proton exchange membrane of this process is required some properties, and low SO2 permeability is most important to increase overall efficiency. Nafion® membranes are too expensive to be used in real process, permit penetration of SO2 gas, and have the high resistance. So it is necessary to find more appropriate membrane for this hybrid sulfur process. In this work, I measured SO2 permeability of Nafion® membrane and sPEEK membrane, having rigid structure in it. To measure SO2 permeability, I used potentiostating method. Diffusion is affected by temperature, so I worked measuring diffusion coefficient at different temperature and plotted Arrhenius plot. |
| 저자 | 김나영, 김덕준 |
| 소속 | 성균관대 |
| 키워드 | proton exchange electrolyzer; hydrogen; thermochemical process; hybrid sulfur process; sPEEK membrane |
| 원문파일 | 초록 보기 |
