... the removal of H2S from semi-water gas, water gas, coke oven gas, natural gas, biogas, shift gas in petrochemical and fertilizer production, CO2 ... the bed.5),Operating: It should be replaced by feed gas before operating, and improve the pressure gradually, then move ... .6),When regenerate or replace desulfurizer, use inert gas to replace the flammable gas, down to the explosive limit. When regeneration, ...