论催化剂在线高温活化的重要性

On the Importance of On-line High Temperature Activation of Catalysts

扬州石化有限责任公司烯烃分厂乙烯回收利用装置以变废为宝的理念,应用DTL 技术实现对干气中稀乙烯等高附加值组分的回收利用。乙烯回收利用装置包括干气制燃料油系统与液化气回收系统,干气制燃料油系统通过反应器床层内的叠合反应生成高温油气、液化气,在冷凝、压缩、聚集后产出轻质燃料油、重燃料油;液化气回收系统利用膜回收+汽柴油吸收组合工艺回收液化气组分。本文根据催化剂、装置运行特性,论述催化剂在线高温活化方案在延长单程运行周期、提高产品收率等在装置降本增效运行方面的重要性。

With the idea of turning waste into treasure,the ethylene recovery unit of the olefin branch of Yangzhou Petrochemical Co. Ltd. realized the recovery and utilization of high value-added components such as dilute ethylene in dry gas by DTL technology. Ethylene recovery and utilization device includes dry gas fuel oil system and liquefied gas recovery system. The dry gas fuel oil system generates high temperature oil and gas through the superposition reaction in the reactor bed,and produces light fuel oil and heavy fuel oil after condensation,compression and accumulation. The liquefied gas recovery system recovers the components of liquefied gas by the combined process of membrane recovery and gasoline and diesel absorption. According to the operation characteristics of catalysts and units,the importance of on-line high temperature activation of catalysts in prolonging oneway operation cycle and increasing product yield in cost reduction and efficiency operation of units is discussed.