改性活性炭纤维脱除COS的研究

本研究采用的催化剂为活性炭纤维,采用了Co~(2+)、Ni~(2+)、Fe~(3+)、Cu~(2+)等多种金属离子通过浸渍法改性活性炭纤维的性能,对COS进行深度脱除。本实验采用固定床反应器,分别通过改性离子的种类、含量、原料气的伴生组分、反应气氛、反应相对湿度和温度的不同催化剂的脱硫性能。结果表明:改性后的催化剂在脱硫性能上有了明显的提高,并根据实验结果推测了过渡金属离子在活性炭纤维上脱除COS的反应机理。

Study of Removal of COSusing Modified Activated Carbon Fibres

The activated carbon fibres were modified with some transitional metal ions such as Co^2＋、Ni^2＋、Fe^3＋、Cu^2＋ by the impregnation method.Some factors which maybe affect the performance of removing carbonyl sulfide such as the kinds and the concentration of transitional metal ions,the components of feed gas,condition of reaction,relative humidity and the temperature were investigated on the fixed-bed reactor.It was showed that the modified activated carbon fibres with Co^2＋ and Ni^2＋, had a higher sulfur capacity than the others.And the mechanism of removal carbonyl sulfide with transitional metal ions was deduced.