催化裂化条件下甲醇与石脑油交互作用研究

为进一步研究甲醇作为催化裂化部分进料反应过程的特征,对催化裂化条件下甲醇与石脑油的交互作用规律进行了考察。利用小型固定流化床装置对甲醇与石脑油共同进料的反应过程进行研究。实验结果表明:随着石脑油中甲醇比例的增加,产物中气体烃产率、焦炭产率、二甲醚产率及低碳烯烃选择性增加;裂化汽油中烷烃含量、芳烃含量先增加后降低,烯烃含量增加;甲醇与石脑油的交互作用使得甲醇转化为低碳烯烃的反应程度加深,同时促进了石脑油的裂化反应。该研究初步探究了甲醇与石脑油的交互作用规律,为更深入的研究甲醇作为催化裂化部分进料的反应过程提供基础数据。

Study on the Interaction between Methanol and Naphtha under FCC conditions

The interaction between methanol and naphtha was inspected under FCC conditions for further study of the reaction process characteristics of methanol as part of FCC feedstock.The reaction process that methanol and naphtha were added at the same time was studied in a fixed fluidized bed.The experimental results showed that the yields of coke and DME,selectivity to light olefins increased with the increasing of methanol content in naphtha,the content of alkanes and aromatics increased at first and then decreased,and light olefins content increased in catalytic gasoline.The reaction of methanol conversion to light olefins went deeply because of the interaction between methanol and naphtha,moreover,which promoted the cracking reaction of naphtha.The research preliminarily investigated the interaction law between methanol and naphtha,which provided the basic data for further study of the reaction process of methanol as a part of FCC feedstock.