【多选题】针对不同原料气提出的脱硫方法不下数十种,大致可分为大类There are more than ten kinds of desulfurization methods for different raw gas, which can be divided into four categories:()
天然气主要杂质:砂、岩屑粉尘、铁锈、携带的水滴或水蒸气饱和后析出水,硫化物,CO2等杂质的危害。Main impurities of natural gas: sand, cuttings dust, rust, carried water droplets or water vapor saturated precipitation, sulfur compounds, CO2 and other impurities.