| 학회 |
한국화학공학회 |
| 학술대회 |
2018년 봄 (04/25 ~ 04/27, 창원컨벤션센터) |
| 권호 |
24권 1호, p.250 |
| 발표분야 |
분리기술 |
| 제목 |
Pd/BCC Composite H2 Permeable Membrane: Fabrication, Characterization, and Application |
| 초록 |
Group VB metals inherently have low surface catalytic activity and hydrogen embrittlement issues, which limited their practical application as a hydrogen permeable membrane. This study overcomes these problems and successfully demonstrates operation of a Pd/BCC composite membranes. The fabricated Pd/Ta composite membrane allowed leak-free operation with close-to-infinite selectivity (purity above 99.999%) from mixed gas (CO, CO2, H2O, and H2) feed. It also presented higher permeability (4.7×10-8 mol m-1 s-1 pa-0.5) than that of widely adopted metallic membranes. To prove its full capability, a membrane module was prepared for treating 26 L min-1 of mixed gas feed flow and separating about 6.9 L min-1 of pure hydrogen, which potentially allow operation of 500W-class fuel cell. Leak-free operation of the module was possible under pressurized conditions (＜ 10 bar), therefore hydrogen embrittlement issues of Ta could be avoided. |
| 저자 |
조영석, 이찬현, 김윤도, 윤창원, 남석우, 한종희
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| 소속 |
한국과학기술(연) |
| 키워드 |
가스분리 |
| E-Mail |
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| 원문파일 |
초록 보기 |
