| 摘要 |
<p>PURPOSE:To reduce the sulfur content in the gas, oil, etc., to <=0.1ppb with the above desulfurizing agent formed by preparing a copper oxide-zinc oxide mixture from a copper compd. and a zinc compd. by coprecipitation, and reducing the mixture with hydrogen. CONSTITUTION:The mixed soln. of a copper compd. and a zinc compd. and an aq. soln. of sodium carbonate are added dropwise into pure water kept at about 80 deg.C while agitating, the compds. are neutralized while keeping a fixed temp., and a mixed slurry is obtained. The formed precipitate is washed, dried at 110-120 deg.C, and compression-molded. The molded product is further calcined at about 300 deg.C. The obtained copper oxide-zinc oxide mixture is reduced at about 150-300 deg.C in the presence of a gaseous mixture consisting of 0.5-4vol.% inert gas and hydrogen to obtain a desulfurizing agent. The org. sulfur and inorg. sulfur compds. in various gases and oils can be reduced to <=0.1ppb with the desulfurizing agent.</p> |
