在YS银催化剂上乙烯环氧化反应器操作工况分析 |
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引用本文: | 赖海明,刘维国,宋夕平,崔晨,杨凤云.在YS银催化剂上乙烯环氧化反应器操作工况分析[J].石油化工,1998(8). |
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作者姓名: | 赖海明 刘维国 宋夕平 崔晨 杨凤云 |
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作者单位: | 北京化工大学化学工程学院,齐鲁石化烯烃厂,北京石油化工学院化工系 |
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摘 要: | 利用国产YS型银催化剂上环氧乙烷生产操作数据,检验了所选用的一维拟均相反应器模型及其表观动力学方程的可靠性,由此分析了乙烯氧化反应器的参变性能及反应活性随催化剂剂龄衰减的变化规律。模拟结果表明,采用低转化率、高空速的操作方式有利于YS型催化剂的运行。在正常的操作条件下,以满足设计产量计,国产YS型催化剂的有效使用期约为4年左右。
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关 键 词: | 环氧乙烷 乙烯氧化 反应器模拟 操作工况分析 |
Performance Simulation of an Ethylene Oxidation Reactorwith YS Type Silver Catalyst |
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Abstract: | he operation performance of an ethylene oxidation fixed bed reactor with domestic YS type silver catalyst has been simulated by a phenomenological ,one dimensional pseudohomogeneous model with apparent kinetic equations obtained from literature and checked by comparing with industiral production data of the plant equipmentThe computation results show that increasing space velocity and decreasing ethylene conversion can improve the reaction selectivity and production yield and facilitate the operation of YS type catalystThe behavior of the YS type catalyst deactivation has also been studiedUnder normal operating conditions,a 4 year lifetime of YS type catalyst is expected according to required production capacity |
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Keywords: | ethylene oxide ethylene oxidation reactor simulation operation parameter analysis |
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