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Preparation of Dry Glycol-Water Calcium Oxide for Catalytic Hydrolysis of Carbonyl Sulfide
Han Chunyu,Jiang Peng,Liu Ye,Lai Junling,Luo Genxiang
Using hydrophobic nano-silicon dioxide, deionized water, ethylene glycol and calcium oxide as the raw material, dry glycol-water calcium oxide resembling confectioners' sugar was prepared by the high-speed mixing, and the effect of shape of weight percentage content on the shape of dry glycol-water calcium oxide was investigated. The effect of content of active constituents, volume of glycol-water, gas flow and service life of the catalyst on the COS hydrolysis transforming rate was investigated. Under the condition of room temperature, gas flow of 10 mL/min, dry glycol-water calcium oxide (the conditions of preparation: 1 g CaO, 40 mL deionized water, 40 mL ethylene glycol, 19 g hydrophobic nano-silicon dioxide, agitation time 10 s) of 2 g, COS hydrolysis transforming rate reached 90%, and service life of this catalyst was 3.25 hours.
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