Due to the fact that butadiene contained in alkylation feedstocks from catalytic cracking unit can convert into heavy oil during alkylation reaction, resulting in the dry point of product and the acid consumption going up and the octane number down.

• 由于来自催化裂化装置的烷基化原料中所含有的丁二烯在烷基化反应中可生成重质油,使产品干点上升,辛烷值下降,并使酸耗增加。