【摘要】 研究了D008离子交换树脂对甲基叔丁基醚(MTBE)的吸附作用,以及H-D008树脂对MTBE水解的催化作用,结果表明,Na-D008及H-D008树脂对MTBE都具有较强的吸附作用,吸附等温线呈直线型.H-D008树脂催化MTBE的水解反应符合一级反应动力学.初始浓度增大,表观一级速率常数基本不变;温度升高,表观一级速率常数增大,当温度为25℃,30℃和35℃时,表观一级速率常数分别为0.067d-1,0.216d-1和0.343d-1.H-D008催化水解MTBE反应的活化能为124.8kJ·mol-1.更多还原

【Abstract】 In this study,methyl tert-butyl ether(MTBE)adsorption over Na-D008 ion exchange resin and hydrolysis over H-D008 resin was investigated.Results showed that both H-D008 and Na-D008 exhibited strong MTBE adsorption, and adsorption of MTBE followed the linear adsorption isotherm.MTBE hydrolysis could be well described by first order kinetics with R2 of 0.99.The reaction rate constants were found to be independent on MTBE initial concentrations.The rate constants were 0.067 d-1, 0.216 d-1 and 0.343 d-1 at 25℃, 30℃ and 35℃, respectively, indicating that rate constants increased with the increase of reaction temperature.Activation energy of MTBE hydrolysis over H-D008 was determined to be 124.8 kJ.mol-1 which is relatively low, suggesting that MTBE hydrolysis over H-D008 is easy.更多还原