H_(2)O_(2)气相高级氧化法脱除烟气中多污染物研究进展

Research progress on removal of multiple pollutants from flue gas by H_(2)O_(2) advanced oxidation in gas phase

综述了气相H_(2)O_(2)氧化法的机理和近年来气相H_(2)O_(2)氧化脱除烟气污染物的研究,主要分为铁基催化剂催化、紫外和其他方式协同催化。气相H_(2)O_(2)与气态污染物接触可发生快速的氧化反应,经催化后使其可产生更多的活性自由基,对烟气污染物具有很强的的氧化脱除效果,且使用H_(2)O_(2)不会产生二次环境问题。分析提出了该研究存在的不足,以及对未来的研究方向进行了展望,H_(2)O_(2)气相高级氧化法脱除烟气多污染物具有广阔的应用前景。

The mechanism of gas-phase H_(2)O_(2)oxidation and the recent research on the removal of flue gas pollutants via this method are reviewed,the catalysts of which are mainly divided into iron-based catalyst,ultraviolet and other collaborative catalyst.The gas-phase H_(2)O_(2)quickly reacts with gaseous pollutants.A large amount of free active radicals with a strong oxidation effect originated from H_(2)O_(2)is produced after catalytic action.Besides,the utilize of H_(2)O_(2)produce little secondary environmental problems.And then,the deficiency is analyzed and the promising research is prospected.A broad application prospect in the removal of multi pollutants in flue gas exists in the H_(2)O_(2)gas phase advanced oxidation method.