期刊
BULLETIN OF CHEMICAL REACTION ENGINEERING AND CATALYSIS
卷 11, 期 2, 页码 191-199出版社
UNIV DIPONEGORO
DOI: 10.9767/bcrec.11.2.550.191-199
关键词
Methane cracking; TCD; Metal catalysts; Co-precipitation; Nobel metal
资金
- Ministry of Higher Education (MOHE) Malaysia [0153AB-K22]
Hydrogen production from the direct thermo-catalytic decomposition of methane is a promising alternative for clean fuel production. However, thermal decomposition of methane can hardly be of any practical and empirical interest in the industry unless highly efficient and effective catalysts, in terms of both catalytic activity and operational lifetime have been developed. In this study, the effect of palladium (Pd) as a promoter onto Ni supported on alumina catalyst has been investigated by using co-precipitation technique. The introduction of Pd promotes better catalytic activity, operational lifetime and thermal stability of the catalyst. As expected, highest methane conversion was achieved at reaction temperature of 800 degrees C while the bimetallic catalyst (1 wt.% Ni-1 wt.% Pd/Al2O3) gave the highest methane conversion of 70% over 15 min of time-on-stream (TOS). Interestingly, the introduction of Pd as promoter onto Ni-based catalyst also has a positive effect on the operational lifetime and thermal stability of the catalyst as the methane conversion has improved significantly over 240 min of TOS. Copyright (C) 2016 BCREC GROUP. All rights reserved
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