Chinese Journal of Chemical Engineering ›› 2020, Vol. 28 ›› Issue (9): 2328-2336.doi: 10.1016/j.cjche.2020.06.025

• Catalysis, Kinetics and Reaction Engineering • Previous Articles     Next Articles

Renewable hydrogen production from steam reforming of glycerol (SRG) over ceria-modified γ-alumina supported Ni catalyst

Ammaru Ismaila1, Huanhao Chen1, Yan Shao1,2, Shaojun Xu3,4, Yilai Jiao5, Xueli Chen6, Xin Gao1,7, Xiaolei Fan1   

  1. 1 Department of Chemical Engineering and Analytical Science, School of Engineering, The University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom;
    2 School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 52920, China;
    3 School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff, CF10 3AT, United Kingdom;
    4 UK Catalysis Hub, Research Complex at Harwell, Rutherford Appleton Laboratory, Harwell, Oxon OX11 0FA, United Kingdom;
    5 Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China;
    6 Institute of Clean Coal Technology, East China University of Science and Technology, Shanghai 200237, China;
    7 School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
  • Received:2020-04-21 Revised:2020-06-14 Online:2020-09-28 Published:2020-10-21
  • Contact: Xin Gao, Xiaolei Fan;
  • Supported by:
    This project has received funding from European Union's Horizon 2020 research and innovation programme under grant agreement No. 872102. A. Ismaila thanks the financial support by the Petroleum Technology Development Fund (PTDF), Nigeria (PTDF/ED/OSS/PHD/IA/1209/17). H. Chen thanks the financial support from the European Commission Marie Sk?odowska-Curie Individual Fellowship (H2020-MSCAIF-NTPleasure-748196). Y. Shao thanks the Chinese Scholarship Council (CSC) for her academic visiting fellowship at the University of Manchester (No. 201708440477) and the Foundation of Department of Education of Guangdong Province (Nos. 2017KZDXM085, 2018KZDXM070).

Abstract: Excess crude glycerol derived as a by-product from biodiesel industry prompts the need to valorise glycerol to value-added chemicals. In this context, catalytic steam reforming of glycerol (SRG) was proposed as a promising and sustainable alternative for producing renewable hydrogen (H2). Herein, the development of nickel (Ni) supported on ceria-modified mesoporous γ-alumina (γ-Al2O3) catalysts and their applications in catalytic SRG (at 550-750 °C, atmospheric pressure and weight hourly space velocity, WHSV, of 44,122 ml·g-1·h-1 (STP)) is presented. Properties of the developed catalysts were characterised using many techniques. The findings show that ceria modification improved Ni dispersion on γ-Al2O3 catalyst support with highly active small Ni particles, which led to a remarkable catalytic performance with the total glycerol conversion (ca. 99%), glycerol conversion into gaseous products (ca. 77%) and H2 yield (ca. 62%). The formation rate for H2 production (14.4 × 10-5 mol·s-1·g-1, TOF (H2) = 3412 s-1) was significantly improved with the Ni@12Ce-Al2O3 catalyst, representing nearly a 2-fold increase compared with that of the conventional Ni@Al2O3 catalyst. In addition, the developed catalyst also exhibited comparatively high stability (for 12 h) and coke resistance ability.

Key words: Steam reforming of glycerol (SRG), Hydrogen (H2), Nickel (Ni) catalysts, Ceria, γ-Alumina (γ-Al2O3)