Effects of promoters on biomass gasification using nickel/dolomite catalyst |
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Authors: | Pattaraporn Chaiprasert Tharapong Vitidsant |
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Affiliation: | (1) Laboratory for Sustainable Technology, Department of Chemical Engineering, University of Sydney, Sydney, NSW 2006, Australia |
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Abstract: | Metallic nickel has been selected as a catalyst for biomass gasification because of its activity in biomass steam gasification
and tar reduction. The effects of types of promoters such as platinum, cobalt, and iron on biomass gasification were evaluated.
The area of interest was the effects of preparation methods, which were impregnation and coprecipitation. Catalyst preparation
by the impregnation method showed superior performance. The conclusion can be drawn from the experiments that the platinum
promoter enhanced the reforming reaction, iron promoted a water-gas shift reaction, and the cobalt promoter favored a methanation
reaction. Moreover, the addition of noble metal reduced carbon deposition on Ni/dolomite. |
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