Influence of salts on the subcritical water-gas shift reaction


Akgul G., Kruse A.

JOURNAL OF SUPERCRITICAL FLUIDS, vol.66, pp.207-214, 2012 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 66
  • Publication Date: 2012
  • Doi Number: 10.1016/j.supflu.2011.10.009
  • Title of Journal : JOURNAL OF SUPERCRITICAL FLUIDS
  • Page Numbers: pp.207-214

Abstract

The water-gas shift reaction is the key reaction to produce hydrogen by hydrothermal biomass gasification. Salts are ingredients of biomass and accelerate the water-gas shift reaction. In this work, the influences of the NaHCO3 and the KHCO3 on water-gas shift reaction (WGSR) were investigated at 10 and 23 MPa and 230-300 degrees C. The presence of NaHCO3 and KHCO3 promotes the WGSR significantly and to the same extend. Additionally, sodium and potassium formate salts are formed from the carbonates. The water-gas shift reaction rate in the presence of salts is found to be: