LT-WGS 반응을 위한 Cu/ZnO/MgO/Al₂O₃ 촉매의 수분처리에 의한 촉매 특성 분석

• Published in: 한국수소및신에너지학회논문집 Vol. 30; no. 2; pp. 95 - 102
• Main Authors: 박지혜(JIHYE PARK), 백정훈(JEONG HUN BAEK), 조광희(GWANG HUI JO), Haroon ur Rasheed, 이광복(KWANG BOK YI)
• Format: Journal Article
• Language: Korean
• Published: 한국수소및신에너지학회 01.04.2019
• Subjects: 기계공학; Water gas shift(수성가스 전이); Co-precipitation(공침법); Water treatment(수분처리); Cu/ZnO/MgO/Al₂O₃ catalyst(Cu/ZnO/MgO/Al₂O₃ 촉매); Copper(구리)
• ISSN: 1738-7264; 2288-7407

In order to investigate the effect of water treatment on activity of WGS catalyst, Cu/ZnO/MgO/Al2O3 (CZMA) catalysts were synthesized by co-precipitation method. The prepared catalysts were water-treated at two different temperature (250, 350℃). Synthesized catalysts were characterized by using BET, SEM, N2O chemisorption, XRD, H2-TPR and XPS analysis. The catalytic activity tests were carried out at a GHSV of 28,000 h-1 and a temperature range of 180- 320℃. The reduction temperature decreased with water treatment and CZMA_250 catalyst showed the lowest reduction temperature and retained a large amount of Cu+. Water-treated catalysts showed increased reactivity compared to untreated catalyst and the CZMA_250 catalyst showed higher catalytic activity on WGS reaction. KCI Citation Count: 7