... be used for removal of H2S in pipeline gas, water gas, semi-water gas, coke oven gas, methane(biogas). Desulfurizer, activated ferric oxide desulfurizer, mainly ... be used for removal of H2S in pipeline gas, water gas, semi-water gas, coke oven gas, methane(biogas).Advantages:1), Desulfurization rate: when H2S ...