[滴流床反应器中苯酚催化湿式空气氧化的动力学]

[Kinetics of catalytic wet air oxidation of phenol in trickle bed reactor].

作者信息

Li Guang-ming, Zhao Jian-fu, Wang Hua, Zhao Xiu-hua, Zhou Yang-yuan

机构信息

State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, Shanghai 200092, China.

出版信息

Huan Jing Ke Xue. 2004 May;25(3):53-6.

PMID:15327253

Abstract

By using a trickle bed reactor which was designed by the authors, the catalytic wet air oxidation reaction of phenol on CuO/gamma-Al2O3 catalyst was studied. The results showed that in mild operation conditions (at temperature of 180 degrees C, pressure of 3 MPa, liquid feed rate of 1.668 L x h(-1) and oxygen feed rate of 160 L x h(-1)), the removal of phenol can be over 90%. The curve of phenol conversion is similar to "S" like autocatalytic reaction, and is accordance with chain reaction of free radical. The kinetic model of pseudo homogenous reactor fits the catalytic wet air oxidation reaction of phenol. The effects of initial concentration of phenol, liquid feed rate and temperature for reaction also were investigated.

摘要

采用作者自行设计的滴流床反应器，研究了苯酚在CuO/γ-Al₂O₃催化剂上的催化湿式空气氧化反应。结果表明，在温和的操作条件下（温度为180℃、压力为3MPa、液体进料速率为1.668L·h⁻¹、氧气进料速率为160L·h⁻¹），苯酚的去除率可达90%以上。苯酚转化率曲线类似自催化反应的“S”形，符合自由基链式反应。拟均相反应器动力学模型适用于苯酚的催化湿式空气氧化反应。还研究了苯酚初始浓度、液体进料速率和反应温度的影响。