催化水解-氧化耦合一步法脱除二硫化碳的研究

A novel desulfurizing agent (DA) was developed to remove carbon disulfide in one step at relatively low temperature. Catalytic hydrolysis and catalytic oxidation were combined on this desulfurizing process. The mechanism to remove carbon disulfide in one step was confirmed by the experiment. The effects of temperature, space velocity, CS-2 concentration, relative humidity, the ratio of O/S were also investigated. From the experimental result, a high sulfur capacity of 2.64 mg/m3 was obtained at the condition of 130 ℃, 1% of relative humidity, 2 of the O/S ratio, 600 h－1 of space velocity. The chemical analysis of basic and sulfuric acid on the catalysts showed different tendency on the catalysts. The decrease of OH－1 was attributed to the formation of SO42－. High ratio of SO42－ to total S-yield had negative effect on the sulfur capacity.