硫化物sulfide(1) 无机硫（H2S）。H2S及其燃烧产物SO2是剧毒气体，对环境有害；酸性气体，两者与水形成酸液造成腐蚀；H2S又是制造硫磺、硫酸的原料。Inorganic sulfur (H2S). H2S and its combustion product SO2 are highly toxic gases, which are harmful to the environment. Acidic gases, both of which form acid with water and cause corrosion; H2S is also used to make sulfur and sulfuric acid.(2) 有机硫，CS2和COS（硫氧化碳）等。天然气作为化工原料使催化剂中毒，影响产品质量。Organic sulfur, CS2 and COS (sulfur oxide carbon), etc. When natural gas is used as chemical raw material, the catalyst is easy to be poisoned and the product quality is affected.