液相催化氧化法净化H_2S实验研究

采用液相催化氧化法净化H2 S尾气。研究了铁离子浓度、氧含量和表面活性剂等因素在H2 S的净化中对吸收液净化效率和硫容量的影响。实验结果表明 ,用铁离子作催化剂 ,添加表面活性剂后 ,对低氧含量的尾气 ,吸收液具有较高的净化效率和较大的硫容量 ;当吸收液的硫容量达到饱和时 ,可通入空气进行再生循环使用。这一方法对H2 S尾气的污染治理及硫的回收利用具有重要的现实意义。

Experiment Study on H2S Purification by Liquid Phase Catalytic Oxidation

The effect of factors such as ferric ion concentration, oxygen content and surface active agent on purification efficiency and sulphur capacity in absorption solution was studied to purify H_(2)S in tail gas by liquid phase catalytic oxidation. The results show that ferric ion as a catalyst can reach a higher purification efficiency and a larger sulphur capacity in absorption solution for tail gas in low oxygen content after surface active agent was added. The absorption solution can be reused through regeneration when sulphur capacity attains saturation. This method has an important practical significance for pollution control of H_(2)S in tail gas and recycle of sulphide.