工艺条件对催化汽油烯烃及苯含量的影响分析

The analysis of operation factors on the content of olefin and benzene in the FCC gasoline

通过工业应用数据分析可知:反应温度及平衡剂活性是影响催化汽油烯烃含量的2个主要因素,平衡剂活性提高有利于降低催化汽油中的烯烃,反应温度与催化汽油烯烃的呈现抛物线关系,即存在一个临界反应温度,在临界反应温度以前,汽油烯烃含量随温度上升而上升,超过临界点后则下降。汽油中苯含量与平衡剂活性没有明显的关联关系,较低的反应温度有利于降低汽油中的苯含量。

The running data shows that reaction temperature and regenerated catalyst macro activity are the main influence factors on the olefin content in the FCC gasoline. That is improve the regenerated catalyst macro activity help to reduce the olefin level in the gasoline. And the reaction temperature has a parabola relation with olefin content,which means at the lower reaction temperature stage,the olefin content level will higher with the reaction temperature rising,then after reach the top point will turn over. The content of benzene in the gasoline has none relation with the regenerated catalyst activity,and lower reaction temperature will help to reduce the benzene content in the gasoline.