Performance of spinel ferrite catalysts integrated with mesoporous Al2O3 in the high temperature water-gas shift reaction

Dae Woon Jeong, Ajay Jha, Won Jun Jang, Won Bi Han, Hyunseog Roh

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Abstract

The present study focuses on the use of spinel ferrite (MFe2O4) catalysts (M=Ni, Co, Fe, or Cu) integrated with mesoporous alumina for the high temperature water-gas shift (WGS) reaction. Among these catalysts, copper ferrite integrated with mesoporous alumina exhibits outstanding performance. To optimize the Cu/Fe ratio in the copper ferrite catalyst, we prepared different CuxFe(3-x)O4-MA catalysts (x=0.5, 1.0, 1.5, 2.0, or 2.5) by varying the Cu/Fe mole ratio. Of the various Cu/Fe catalysts, the 1:1 mole ratio of Cu/Fe exhibited the highest CO conversion (84%) and 100% selectivity to CO2 at a very high GHSV of 42,000h-1. The improved performance of the catalyst is correlated with its easier reducibility.

Original languageEnglish
Pages (from-to)100-109
Number of pages10
JournalChemical Engineering Journal
Volume265
DOIs
Publication statusPublished - 2015 Apr 1

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All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Environmental Chemistry
  • Chemical Engineering(all)
  • Industrial and Manufacturing Engineering

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