研究了以氯气和2,4二-氯甲苯为原料制取2,4二-氯亚苄基二氯,讨论了2,4二-氯甲苯侧链光氯化反应温度对产物收率的影响;用气相色谱仪分别测定了在343 K、373 K及403 K 3个不同温度下反应体系中各组分摩尔分数随反应时间的变化;导出氯化反...研究了以氯气和2,4二-氯甲苯为原料制取2,4二-氯亚苄基二氯,讨论了2,4二-氯甲苯侧链光氯化反应温度对产物收率的影响;用气相色谱仪分别测定了在343 K、373 K及403 K 3个不同温度下反应体系中各组分摩尔分数随反应时间的变化;导出氯化反应过程的动力学模型为dxC/dt=-kxC,3个不同温度下k值分别为0.096、0.120、0.192 h-1。实验数据与动力学模型拟合的结果相吻合。展开更多
The adsorption equilibria of N<sub>2</sub>,Ar,CH<sub>4</sub>,CO<sub>2</sub>,and N<sub>2</sub>O on H-Mordenite were studied with a constant volume appa-ratus under pressu...The adsorption equilibria of N<sub>2</sub>,Ar,CH<sub>4</sub>,CO<sub>2</sub>,and N<sub>2</sub>O on H-Mordenite were studied with a constant volume appa-ratus under pressure from 3.04×10<sup>3</sup> to 1.43×10<sup>7</sup> Pa at—196°,0°,25°,50° and 75℃.The amount of adsorption ofN<sub>2</sub>,Ar and CH<sub>4</sub> increases with pressure until approaching saturation at about 6.08×10<sup>6</sup> Pa.A maximum exists on theadsorption isotherm of CO<sub>2</sub> and N<sub>2</sub>O,and their isotherms at different temperatures cross each other.All the data obtainedin this work can be correlated by the extended adsorption potential theory quite well.All experimental points can be repre-sented by the generalized characteristic curve.展开更多
The adsorption equilibria of n-heptane, n-octane and n-nonane on silicalite and ZSM-5 have been measured in the temperature range of 373.15--473.15K under low pressure (0---5.332kPa). All the experimental data can be ...The adsorption equilibria of n-heptane, n-octane and n-nonane on silicalite and ZSM-5 have been measured in the temperature range of 373.15--473.15K under low pressure (0---5.332kPa). All the experimental data can be represented by a generalized characteristic curve of the extended adsorption potential theory utilizing the parameter of the initial heat of adsorption, which is estimated reasonably by a new approach.展开更多
文摘The adsorption equilibria of N<sub>2</sub>,Ar,CH<sub>4</sub>,CO<sub>2</sub>,and N<sub>2</sub>O on H-Mordenite were studied with a constant volume appa-ratus under pressure from 3.04×10<sup>3</sup> to 1.43×10<sup>7</sup> Pa at—196°,0°,25°,50° and 75℃.The amount of adsorption ofN<sub>2</sub>,Ar and CH<sub>4</sub> increases with pressure until approaching saturation at about 6.08×10<sup>6</sup> Pa.A maximum exists on theadsorption isotherm of CO<sub>2</sub> and N<sub>2</sub>O,and their isotherms at different temperatures cross each other.All the data obtainedin this work can be correlated by the extended adsorption potential theory quite well.All experimental points can be repre-sented by the generalized characteristic curve.
文摘The adsorption equilibria of n-heptane, n-octane and n-nonane on silicalite and ZSM-5 have been measured in the temperature range of 373.15--473.15K under low pressure (0---5.332kPa). All the experimental data can be represented by a generalized characteristic curve of the extended adsorption potential theory utilizing the parameter of the initial heat of adsorption, which is estimated reasonably by a new approach.
