(H2S, SO2, SF6) and organic sulfur (COS, CS2, thiol, thioether, thiophene) are mainly composed of H2S, SO2, SF6, COS, CS2 , The majority of mercaptans. Sulfide indicators are the operating and living areas must be controlled, the presence of sulfide in syngas can poison the catalyst, the sulfide in the gas is the main material that causes the corrosion of the material, and the analysis of the sulfide in the gas is equivalent in the production life important.

           Sulfide has corrosive and easy adsorption characteristics, chromatographic analysis is often poor reproducibility, can not be accurate quantitative.

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