Autothermal reforming of methane to syngas using co-precipitated Ni-(La₂O₃)_x-(ZrO₂)_1−x catalyst

Authors: Park, Sun Hee¹; Chun, Kook¹; Yoon, Wang Lai²; Kim, Sung Hyun¹

Source: Research on Chemical Intermediates, Volume 34, Numbers 8-9, 2008 , pp. 781-786(6)

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Abstract:

Two different catalysts, Ni-(ZrO₂) and Ni-(La₂O₃)_0.1-(ZrO₂)_0.9, were synthesized to use as catalysts in the autothermal reforming of methane. Ni-(ZrO₂) catalyst without lanthanum prepared in this study has a good initial performance, but as the reactions keep progressing, the activities gradually decrease. In contrast, the activities of Ni-(La₂O₃)_0.1-(ZrO₂)_0.9 catalyst have high thermal stability and coke resistance due to the presence of La. Both methane conversion and hydrogen yield of Ni-(La₂O₃)0.1-(ZrO₂)_0.9 in non-reduced form are better than reduced form and as good as commercial Ni-based catalyst (ICI 57-4).

Keywords: CATALYST; METHANE; REFORMING; AUTOTHERMAL REFORMING; LANTHANUM

Document Type: Research article

DOI: http://dx.doi.org/10.1163/156856708786189429

Affiliations: 1: Department of Chemical & Biological Engineering, Korea University, 1 Anam-Dong, Sungbuk-Ku, Seoul 136-701, South Korea 2: Hydrogen & Fuel Cell Research Department, Korea Institute of Energy Research, 71-2 Jang-dong, Yuseong-gu, Daejeon 304-345, South Korea

Publication date: 2008-10-01