Mechanism and kinetic of the reduction of benzene by ozone in flue gas

作者：Wen Zheng Cheng^*; Zhou Jun Hu; Wang Zhi Hua; Yang Wei Juan; Liu Jian Zhong; Cen Ke Fa

来源：Journal of Combustion Science and Technology, 2008, 14(2): 171-175.

• Benzene reduction
• Chemical mechanism
• Environmenteal control technology
• Kinetic calculations

Based on the established chemical mechanism, sensitivity analysis and kinetic calculations were performed by CHEMKIN to affirm the important primitive reactions and the major factors affecting the reduction of benzene were deeply analyzed. Results indicate that the formation of NO3 the most important factor affecting the reduction of benzene. The reaction between ozone and benzene is not an important elemental reaction with little effect on the reduction. The reduction improves with the rising of the temperature, the increasing of amount of added ozone and the descending of initial concentration of benzene. But the variation of O2 concentration will not affect the reduction. Under typical flue gas conditions, assuming that the initial concentration of benzene is 0.1 × 10-6, to control benzene effectively, the factors should be as follows: R≥1.6, t=1 s, T=250°C, then the reduction will be above 65%.

• 出版日期2008
• 单位浙江大学