摘要
进行了电子束辐照分解甲苯的静态实验研究，实验结果表明，电子束辐照能够有效地分解甲苯，在850keV、11kGy电子束的辐照下，初始质量浓度为1000-3000mg／m^3的甲苯去除率可以达到77％以上，且甲苯去除率随吸收剂量的增加而提高。甲苯辐照分解的主要产物是苯甲醛和甲酸，此外还有少量苯、苯酚等。进一步验证了·OH在甲苯分解中的重要作用。
A static experiment on degradation of toluene by electron beam irradiation was carried out. The results show that electron beam can degrade toluene effectively. Under the irradiation of electron beam with 850 keV and 11 kGy, the removal rate of toluene with initial mass concentration 1 000 - 3 000 mg/m^3 is more than 77% and it is increased with the increasing of absorbed dose. The primary products from toluene radiolysis are benzaldehyde, formic acid and a little of benzene and phenol. These more prove the importance of free radical· OH in the degradation of toluene.
出处
《化工环保》
CAS
CSCD
北大核心
2006年第3期190-193,共4页
Environmental Protection of Chemical Industry
基金
国际原子能机构资助项目(13172)
中国工程物理研究院科学技术基金面上课题(20030550)
关键词
电子束
有机污染物
甲苯
降解机理
废气处理
electron beam
organic contaminant
toluene
degradation mechanism
waste gas treatment
