Mixed solld solutions magnesium-alumina spinel catalyst, MgAl2O4 ·xAl2O3·yMgO (01, the activity decreases which was due to MgO and spinel coekist in the catalyst. The results of reduction-oxidation (red-ox) cycle tests showed that introducing rare earth cerium to spinel could improve the de-SOx activity. Of all the catalysts, 0.1Ce/MgAl2O4· MgO is a promising catalyst which has the highest activity.30% propane as reducing gas is superior to 30% H2.
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