| 학회 |
한국화학공학회 |
| 학술대회 |
2007년 가을 (10/26 ~ 10/27, 한국과학기술원) |
| 권호 |
13권 2호, p.2420 |
| 발표분야 |
촉매 및 반응공학 |
| 제목 |
Ni Catalyst Washcoated on Metal Monolith with Enhanced Heat-transfer Capability for Steam Reforming |
| 초록 |
A commercial Ni-based catalyst was washcoated on a monolith made of 50㎛-thick fecralloy plates. Compared with the same volume of coarsely powdered Ni catalysts, the monolith-washcoated Ni catalysts showed a higher methane conversion in the steam reforming reaction, especially at gas hourly space velocities (GHSV) higher than 28000 h-1, and with no pressure drop. A higher conversion of the monolith catalyst was obtained, even though it contained a lower amount of active catalyst (3 g of the washcoated Ni catalyst vs. 17 g of the powdered catalyst), indicating that the heat transfer capability of the Ni catalyst was significantly enhanced by the use of a metal monolith. The efficacy of the monolith catalyst was tested using a shell-and-tube type heat exchanger reactor, using 912 cc of the monolith catalyst charged onto the tube side, with hot combusted gas supplied to the shell side in the counter-current direction to the reactant flow. A methane conversion higher than 94% was obtained at a GHSV of 7300 h-1 and average temperature of 640oC. |
| 저자 |
류재홍1, 이관영1, 양정일2, 김학주2, 천동현2, 정 헌2
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| 소속 |
1고려대, 2한국에너지기술(연) |
| 키워드 |
Ni catalyst; metal monolith; steam reforming; noble metal doping; heat transfer enhancement
|
| E-Mail |
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| VOD |
VOD 보기 |
| 원문파일 |
초록 보기 |
