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nature : desulfurization of a methodology. Hit by sulfur agent were all multi-component solution. Typically for the purification of hydrogen sulfide and other sulfur compounds higher gases. The following two types of commonly used methods. (1) chemical absorption method : ammonia used in the catalysis (hydroquinone as catalyst), sodium anthraquinone 2 (ADA) Act (sodium carbonate solution for the absorbent, sodium anthraquinone 2 as the catalyst), a modified alkaline arsenic (G-V). (2) physical absorption method : a common low-temperature methanol, propylene carbonate law.
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