DESULFURIZING AGENT FOR REDUCING GAS

摘要

PURPOSE:To obtain a desulfurizing agent for a reducing gas having high desulfurizing performance and high durability by carrying a specified amt. of iron oxide (Fe2O3) on a granular carrier made of an alumina-silica mixture. CONSTITUTION:A powdery alumina-silica mixture having 30:70-80:20 ratio of alumina:silica is granulated and calcined at 1200-1350 deg.C to obtain a granular carrier having 10-45vol.% porosity and 0.5-2.0mm diameter. A satd. soln. of iron sulfate or iron nitrate is impregnated into the carrier and calcined at 650-850 deg.C in the air to carry 2-30wt.% iron oxide on the carrier.