Mechanism and performance of styrene oxidation by O3/H2O2

作者：He J.-C.; Huang Q.-R.; Ye Q.-H.; Luo Y.-W.; Zhang Z.-L.; Fan Q.-J.; Wei Z.-S.

来源：Environmental Science, 2013, 34(10): 3772-3776.

• Free hydroxyl radical
• GC-MS
• Mechanism
• O3/H2O2
• Performance
• Styrene

It can produce a large number of free radicals in O3/H2O2 system, ozone and free radical coupling oxidation can improve the styrene removal efficiency. Styrene oxidation by O3/H2O2 was investigated. Ozone dosage, residence time, H2O2 volume fraction, spray density and molar ratio of O3/C8H8 on styrene removal were evaluated. The experimental results showed that styrene removal efficiency achieved 85.7. The optimal residence time, H2O2 volume fraction, spray density and O3/C8H8 molar ratio were 20.6 s, 10, 1.72 m3·(m2·h)-1 and 0.46, respectively. The gas-phase degradation intermediate products were benzaldehyde (C6H5CHO) and benzoic acid (C6H5COOH), which were identified by means of gas chromatography-mass spectrometry (GC-MS). The degradation mechanism of styrene is presented.

• 出版日期2013
• 单位中山大学