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Potassium hypochlorite (chemical formula KClO) is the potassium salt of hypochlorous acid. It is used in variable concentrations, often diluted in water solution. It has a light grey color and a strong chlorine smell. It can be used as a disinfectant.
A method for deep removal of sulfides from fuel gas
The application provides a method for deeply removing sulfides from fuel gas, comprising the following steps: (1) removing hydrogen sulfide gas by an organic alcohol amine absorbent; (2) contacting and reacting the fuel gas after removal of hydrogen sulfide gas with an oxidizing solvent to remove methyl mercaptan, dimethyl sulfide and residual hydrogen sulfide, the oxidizing solvent comprising 1-10% of an organic alcohol amine, 0.5-20% of an organic solvent, 2-38% of an oxidizing agent, 0.2-1% of an inorganic salt, and the balance of water, the organic solvent being at least one selected from the group consisting of tributyl phosphate, dimethylformamide, N-methyl pyrrolidone and polyethylene glycol dimethyl ether; the oxidizing agent being at least one selected from the group consisting of sodium hypochlorite, sodium chlorate, potassium hypochlorite, potassium chlorate, hydrogen peroxide and potassium permanganate; the inorganic salt being sodium carbonate and / or potassium carbonate; (3) adsorbing the fuel gas after removal of hydrogen sulfide, methyl mercaptan and dimethyl sulfide by an adsorbent to remove carbonyl sulfur and carbon disulfide.
Owner:PETROCHINA CO LTD