고온수성가스전이 반응에서 조촉매(La, Pr, Zr)를 첨가한 Co계 촉매의 성능 비교 연구

• 영문명: The comparison study on the performance of Co based catalysts using different promoters (La, Pr, and Zr) in the HTS reaction
• 발행기관: 한국환경에너지공학회
• 저자명: 김주환(Ju-Hwan Kim) 정대운(Dae-Woon Jeong)
• 간행물 정보: 『한국환경에너지공학회 학술대회지』2020년 춘계학술발표회, 38~38쪽, 전체 1쪽
• 주제분류: 공학 > 환경공학
• 파일형태: PDF
• 발행일자: 2020.07.16

영문 초록

In the study, We compared the effect of Promoter on catalyst performance by adding various Promoter (La, Pr, Zr) in Co-CeO2 catalyst for high temperature shift(HTS: CO + H2O → CO2 + H2) reaction. The promoted Co-CeO2 catalysts by co-precipitation method. The physicochemical properties of the prepared catalysts are analyzed by BET, XRD, and TPR. In addition, the HTS reaction was carried out at a very high gas hourly space velocity (GHSV = 286,000 h-1) to evaluate the catalyst performance. Among the prepared catalysts, Zr promoted Co-CeO2 catalyst exhibits the highest CO conversion (XCO = 82.8% at 500 oC). This result is mainly due to small CeO2 crystallite size, high BET surface area.

키워드

High Temperature Water Gas Shift Reaction Hydrogen production Co-precipitation Promoter