| 학회 | 한국화학공학회 |
| 학술대회 | 2007년 봄 (04/19 ~ 04/20, 울산 롯데호텔) |
| 권호 | 13권 1호, p.1098 |
| 발표분야 | 촉매 및 반응공학 |
| 제목 | 고온고압 황내구성 WGS 반응 촉매 |
| 초록 | The WGS reaction is one of the key catalytic stages in a fuel processor and hydrogen station. Since the reaction is an exothermic, the equilibrium conversion of CO is highest at low temperatures. Consequently a two-stage process in often used. In industrial reactors, Fe3O4-Cr2O3 catalyst was used for a high temperature shift (HTS) and Cu-Zn/Al2O3 catalyst was used for a low temperature shift (LTS) reaction. Existing commercial Cu-Zn/Al2O3 (LTS) catalyst, though highly active, was unsuitable for transportation applications because of their large size and weight, and the deactivation tendency of the copper-based catalysts under the severe conditions encountered in an automotive system. The Cu-Zn/Al2O3 catalyst also can not be used at temperatures above about 250℃, which further limits their utility. Therefore, the development of high performance WGS catalysts for integration with PEM fuel cells is very important . In this works, we have studied the WGS reaction over Pt- and (or) Ni-containing cerium oxide catalysts. The thermal cycling performance over the prepared catalysts was compared with that over the commercial Cu-Zn/Al2O3 catalyst. |
| 저자 | 이윤주, 류종우, 문동주 |
| 소속 | KIST |
| 키워드 | WGS; HTS; catalyst |
| 원문파일 | 초록 보기 |
