单纯运用非热平衡等离子体(NTP)技术脱除挥发性有机化合物(VOCs)的效率和能量利用率并不高,而且在降解过程中可能会产生某些有害副产物。为了克服NTP技术在VOCs治理方面的缺陷,可将NTP和化学催化方法组合运用,结合两者的优势使系统的VOCs脱除率、能量利用率和CO2选择率显著提高。从催化反应器结构、NTP与催化剂协同作用的原理等方面总结了近年来NTP协同催化技术在VOCs脱除方面的应用状况。最后指出,NTP协同催化技术在VOCs脱除方面有良好的应用前景,但要真正实现其工程应用,仍有很多问题亟待研究和解决。
The single non-thermal plasma(NTP) technology has the disadvantages of poor decomposition effect and low energy efficiency in VOCs removal,and some toxic by-produced will produced during the decomposition process.So,the non-thermal plasma catalysis technology has received more and more concern as it can achieve higher decomposition rate and energy efficiency,better CO2 selectivity and reduce the unwanted byproducts.This paper discussed the reactor shape,the synergetic mechanisms of non-thermal plasma catalysis system,and also comprehensively introduced the current application status of single-stage and two-stage non-thermal plasma catalysis systems.Finally,it was point out that the non-thermal plasma catalysis technology has the perfect prospect in VOCs removal,while there are still lots of problems to solve to realize the real engineering application.