Catalytic steam reforming of biomass over Ni-based catalysts: Conversion from poplar leaves to hydrogen-rich syngas |
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Authors: | Lingyan Cao Zhigang Jia Shengfu Ji Jinyong Hu State Key Laboratory of Chemical Resource Engineering Beijing University of Chemical Technology Beijing China |
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Affiliation: | Lingyan Cao,Zhigang Jia,Shengfu Ji,Jinyong Hu State Key Laboratory of Chemical Resource Engineering,Beijing University of Chemical Technology,Beijing 100029,China |
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Abstract: | A series of Ni/SBA-15 catalysts with Ni contents from 5 wt%–20 wt%and CaO-12.5%Ni/SBA-15 catalysts with CaO contents from 1.4 wt%– 9.8 wt%have been prepared.The structure of the catalysts was characterized using X-ray diffraction(XRD),N2 adsorption-desorption,transmission electron microscopy(TEM)and X-ray photoelectron spectroscopy(XPS).The performance of catalytic steam reforming of the poplar leaves to the hydrogen-rich syngas was tested in a fixed-bed reactor.The results indicate that the 7.0wt%CaO-12.5wt%Ni/SBA-15 catalyst exhibits the best performance for the catalytic steam reforming of poplar leaves to hydrogen-rich syngas.The ratio of H2:CO can reach ca 5:1 in the hydrogen-rich syngas.The yield of H2 can reach 273.30 mL/g(poplar leaves).In the CaO-Ni/SBA-15 catalyst,Ni active component mainly fills the role of catalytic steam reforming of the poplar leaves,and CaO active component mainly plays the role as water-gas shift and CO2 sorbent. |
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Keywords: | biomass steam reforming hydrogen-rich syngas Ni-basic catalyst CaO |
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