Chinese Journal of Chemical Engineering ›› 2019, Vol. 27 ›› Issue (3): 677-684.doi: 10.1016/j.cjche.2018.03.036

• Energy, Resources and Environmental Technology • Previous Articles     Next Articles

Ethanol steam reforming study over ZSM-5 supported cobalt versus nickel catalyst for renewable hydrogen generation

Ashutosh Kumar1, Ram Prasad2, Yogesh Chandra Sharma1   

  1. 1 Department of Chemistry, Indian Institute of Technology (Banaras Hindu University) Varanasi, Varanasi 221005, India;
    2 Department of Chemical Engineering & Technology, Indian Institute of Technology (Banaras Hindu University) Varanasi, Varanasi 221005, India
  • Received:2017-11-22 Revised:2018-01-19 Online:2019-03-28 Published:2019-04-25
  • Contact: Yogesh Chandra Sharma,E-mail

Abstract: The renewable hydrogen generation through ethanol steam reforming is one of the anticipated areas for sustainable hydrogen generation. To elucidate the role of Ni and Co with ZSM-5 support, catalysts were prepared by wet impregnation method and ethanol steam reforming (ESR) was performed. The catalysts were characterized by HR-XRD, ATR-FTIR, HR-SEM, TEM with SAED, EDAX, surface area analyzer and TPR. It had shown complete ethanol conversion at 773 K, but the selectivity in hydrogen generation was found higher for 10% Ni/ZSM-5 catalyst as compared to 10% Co/ZSM-5. The 10% Ni/ZSM-5 catalyst has about 72% hydrogen selectivity at temperature 873 K. It indicates that Ni is a more sustainable catalyst as compared to Co with ZSM-5 support for ESR. The C2H4 was found major undesirable products up to 823 K temperature. Nevertheless, the 10% Ni/ZSM-5 catalyst had shown its stability for high temperature (873 K) ESR performance.

Key words: Ethanol steam reforming, Zeolite, Hydrogen, Renewable energy, Catalyst