... 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 ... : 6-8% per time;3), Intensity & Water Resistance: this desulfurizer would not become mudding after boiling it 2 hours or ...