烯烃催化裂解装置反应进料系统的节能优化

Energy-saving optimization of reaction feed system in olefin catalytic cracking process

通过挖掘现有烯烃催化裂解技术在节能方面的潜力,提出了一种反应进料先气化,再作为膨胀机工质做功,从而降低能耗的反应进料系统。通过工程实例,对比现有技术方案和改进方案,证明改进方案可达到降低装置能耗,节省操作费用的效果,同时不影响预加氢反应和催化裂解反应。

An improved reaction feed system is proposed by seeking energy-saving potential olefin catalytic cracking technology. In this system,the reaction feed is firstly vaporized,and then acts as the working fluid of the expander to reduce the energy consumption. The result shows that,comparing with the existing scheme,the improved scheme can reduce both the energy consumption and save the operation cost of the device. Moreover,the improved scheme has almost no influence on the pre-hydrogenation reaction and catalytic cracking reaction.