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Experimental investigation of steam reforming of methanol over La2CuO4/CuZnAl-oxides nanocatalysts

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  • Zhang, Yidian
  • Guo, Shaopeng
  • Tian, Zhenyu
  • Zhao, Yawen
  • Hao, Yong

Abstract

Nanocatalysts of compound metal oxides (La2CuO4)x(CNZ-1)1−x (x = 0.3, 0.5, 0.7) were prepared. Steam reforming of methanol (SRM) over these nanocatalysts was experimentally studied at a H2O/methanol molar ratio of 1.6. The results showed that the methanol solution catalyzed by all catalysts synthesized in this work could be completely converted into H2, CO2 and a small amount of CO below a reaction temperature of 270 °C with a liquid hourly space velocity (LHSV) of 1.2 ml/(g·h). The catalysts of La2CuO4 and CuO/ZnO/Al2O3 were tested under the same operating conditions. Compared with La2CuO4, LCOx-CNZ showed better performance with a higher methanol conversion rate and H2 yield. Conversely LCO5-CNZ had better CO and H2 selectivity compared with CuO/ZnO/Al2O3. LCO3-CNZ showed good competitiveness in all four above aspects when operated at 150–270 °C. It could be concluded that LCOx-CNZ with special structures provided a significant improvement in catalytic performance of SRM benefiting from the synergistic effect among La2CuO4 and CuZnAl oxides. Thermodynamics analysis and experiments using a hybrid power generation system were applied with the above catalysts. Under direct normal irradiation at 915 W/m2 and a reaction temperature of 230 °C, LCO3-CNZ showed 9.7% higher H2 yield and 3.9% higher net solar power generation efficiency than did Cu/Zn/Al oxides.

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  • Zhang, Yidian & Guo, Shaopeng & Tian, Zhenyu & Zhao, Yawen & Hao, Yong, 2019. "Experimental investigation of steam reforming of methanol over La2CuO4/CuZnAl-oxides nanocatalysts," Applied Energy, Elsevier, vol. 254(C).
    • Handle: RePEc:eee:appene:v:254:y:2019:i:c:s0306261919306439
    DOI: 10.1016/j.apenergy.2019.04.018
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    Cited by:

    1. Xiao Li & Lingzhi Yang & Yong Hao, 2023. "Absorption-Enhanced Methanol Steam Reforming for Low-Temperature Hydrogen Production with Carbon Capture," Energies, MDPI, vol. 16(20), pages 1-16, October.
    2. Lu, Buchu & Yan, Xiangyu & Liu, Qibin, 2023. "Enhanced solar hydrogen generation with the direct coupling of photo and thermal energy – An experimental and mechanism study," Applied Energy, Elsevier, vol. 331(C).
    3. Fajín, José L.C. & Cordeiro, M. Natália D.S., 2021. "Light alcohols reforming towards renewable hydrogen production on multicomponent catalysts," Renewable and Sustainable Energy Reviews, Elsevier, vol. 138(C).

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