Process for producing cracked product fraction comprising propylene, C4 olefins, or both

The present invention provides a process for producing a cracked product fraction comprising propylene, C4 olefins, or both. In the process, a catalytic cracking feedstock containing a hydrocarbon feed comprising at least 5 wt% of isoparaffins is catalytically cracked in a catalytic cracking reactor. 本发明提供了用于生产包含丙烯、C4烯烃或两者的裂化产物馏份的方法。在该方法中，对含有包含至少5wt％异链烷烃的烃进料的催化裂化原料在催化裂化反应器中进行催化裂化。