Ni-CeO2/γ-Al2O3电催化间甲基苯酚水蒸气重整的实验研究

doi:10.3969/j.issn.1673-5854.2016.04.002

Abstract

Abstract: m-Cresol was selected as the oxygenated model compound of biomass gasification tar to study the electrochemical catalytic steam reforming using the Ni-CeO₂/γ-Al₂O₃ as catalyst. Experiments were carried out to reveal the effects of electric current intensity and reforming temperature on the m-cresol conversion, product gas composition and carbon deposition of the catalyst. In addition, the stability tests at 600℃ were conducted to evaluate the stability of the catalyst and the improving effect of the electric current on the catalyst stability.The results indicated that the electrochemical catalytic method significantly improved the reforming efficiency of the m-cresol.The conversion rate reached ashigh as 99.7% at 700 ℃ and electric current of 3A with 2.4g catalyst in the vertical tube furnace.The elevation of the temperature and current intensity could increase the CO volume fraction, and decrease the concentrations of CO₂ and H₂.Furthermore, the presence of the electric current also reduced the carbon deposition on the catalyst and enhanced the stability of the catalyst.

Key words: tar, electrochemical catalytic steam reforming, m-cresol, Ni-CeO₂/γ-Al₂O₃

CLC Number:

TQ35
TK6

RAN Ze-peng, LU Qiang, WANG Xin, HU Bin, DONG Chang-qing. Electrochemical Catalytic Steam Reforming of m-Cresol with Ni-CeO₂/γ-Al₂O₃ Catalyst[J]. bce, 2016, 50(4): 6-12.

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Electrochemical Catalytic Steam Reforming of m-Cresol with Ni-CeO₂/γ-Al₂O₃ Catalyst

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Electrochemical Catalytic Steam Reforming of m-Cresol with Ni-CeO2/γ-Al2O3 Catalyst

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Electrochemical Catalytic Steam Reforming of m-Cresol with Ni-CeO₂/γ-Al₂O₃ Catalyst