| 苯气相烃化制乙苯工艺中AF-5分子筛催化剂失活动力学的研究 |
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| 引用本文： | 支玉珍,张国泰.苯气相烃化制乙苯工艺中AF-5分子筛催化剂失活动力学的研究[J].石油化工,1985(11). |
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| 作者姓名： | 支玉珍 张国泰 |
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| 作者单位： | 华东化工学院能源化工系 上海 |
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| 基金项目： | 中国科学院科学基金资助的课题 |
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| 摘 要： | 用积分反应器研究了苯气相烃化制乙苯过程中AF-5分子筛催化剂失活规律。测定了反应活化能、反应级数以及340—360℃时的失活反应级数。在乙烯分压为0.025—0.075大气压和苯分压为0.024—0.058大气压范围内,得到的失活动力学速率式为从失活级数推测其失活机理为反应物没有内扩散阻力的平行连串失活,反应物苯及生成物乙苯、二乙苯均能引起催化剂的失活。
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Deastivation kinetics of stage. vapor phase alkylation of benzene with ethylene over AF-5 zeolite catalyst |
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| Abstract: | Deactivation kinetics of AF-5 zeolite catalyst was studied in an integral reactor for vapor phase alkylation process of benzene with etnylene. Within a temperature range of 340—360℃ and a partial pressure range of 0.025—0.075 atm for ethylene and 0.24—0.58 atm for benzene, the deactivation kinetics equations have been derived. From the deactivation order, it is expected that the deactivation mechanism is a parallel-series one with no pore resistance for the reactants. Both the reactants and the products will deactivate the catalyst. |
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