期刊
CHEMCATCHEM
卷 7, 期 20, 页码 3376-3385出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cctc.201500482
关键词
biomass; lanthanum; mesoporous silica; nickel; syngas
资金
- National University of Singapore
- NEA-ETRP [1002 114, 279-000-333-490]
Catalytic biomass gasification is an environmentally benign solution to energy problems. A series of Ni catalysts on mesoporous SBA-15 are synthesized with various La2O3 loadings. The catalytic activity of unpromoted Ni/SBA-15 catalyst indicates that it has a high carbon formation rate, resulting in fast deactivation. In contrast, addition of La2O3 to Ni/SBA-15 catalyst helps to remove deposited carbon by formation of oxycarbonate, resulting in higher CO production. A 1% La doping in the Ni/SBA-15 catalyst is sufficient to achieve high activity and stability in biomass gasification with various raw materials and in the steam reforming of toluene as a tar model compound. The combination of small metal particle size, high metal dispersion, high surface area of SBA-15, the crucial role of La in carbon removal, and the novel synthesis method result in a highly active, stable, and effective 1% La-Ni/SBA-15 catalyst for biomass gasification.
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