水煤气制备硫的试验研究

Study on the Reduction of Sulfur Dioxide by Coal gas

本文探讨了γ-Al 2O 3负载Fe氧化物催化剂对水煤气还原二氧化硫为单质硫的影响因素,考察了浸渍时间、浸渍方法等催化剂制备工艺以及活性组分Fe含量对还原反应的影响。结果表明,含Fe14%的催化剂最有利于催化反应进行;等体积浸渍8h制备的催化剂催化效果最佳,在450℃时硫的产率达到78.26%;微波浸渍法制备的催化剂对二氧化硫的转化率最好,是一种非常有前景的催化剂制备方法;催化剂的硫化处理研究表明,气相硫化比液相硫化效果更有利于单质硫生成。

The reduction of sulfur dioxide by coal gas over catalysts of iron oxide supported onγ-Al 2O 3 was studied in this experiment.Investigated the reaction of different components of Fe content and different process conditions on the catalyst activity and elemental sulfur dioxide yield.The results show that the best iron content of metal catalyst in this experiment is 14%.The best time for making a catalyst is 8h.The yield can reach to 78.26%at 450℃.Micro-wave process is good for the conversion.Gas vulcanized is better than Liquid vulcanized.