丙烯酸废水超临界水氧化动力学研究

Kinetics of oxidation of acrylic acid production wastewater in supercritical water

用H2O2作为氧化剂,对丙烯酸生产废水进行超临界水氧化研究。得到了反应速率方程表达式。COD、H2O2和水的反应级数分别为1、0和0,指前因子A为4.97 s-1,反应活化能Ea为20.64 kJ/mol,诱导时间为8 s左右。

Supercritical water oxidation of acrylic acid production wastewater was investigated using H2O2 as the oxidant. Reaction rate expression was achieved, and the reaction order of feed wastewater （ based on COD） , oxidant and water was assumed to be first, zero and zero, respectively. The resulting pre-exponential factor A was 4.97 s-1 ; the activation energy Ea was 20.64 kJ/mol; the induction time was about 8 s.