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河南油田炼油厂催化裂化装置通过采取将所加工原料的残联控制在1.8％～3.0％；以提高原料中环烷烃、芳烃的含量；把原采用的焦碳选择性好、裂化活性高，但裂化产品中汽油辛烷值较低的烯土氢Y型催化剂，更换为异构化性能好、氢转移反应能力较低，能够提高汽油辛烷值的复合越稳Y型分子筛催化剂；改善操作条件，包括控制适宜的反应温度，注入急冷介质缩短反应时间，控制再生催化剂含碳量在0.1％，在分馏塔中控制汽油终沸点不大于185℃等一系列技术措施，生产出优质合格的90＃无铅汽油是完全可行的。
Henan Oilfield refinery catalytic cracking unit by taking the processing of raw materials, the CDPF control in 1.8% ~ 3.0%; in order to improve the content of naphthenes, aromatics; the original coke selectivity, cracking activity, but cracking In the product, the ethene hydrogen hydrogen type Y catalyst with lower octane number of gasoline is replaced by a composite more stable Y type molecular sieve catalyst with good isomerization performance and lower hydrogen transfer reaction capability, which can improve the octane number of gasoline; and the improvement of operating conditions, Including the control of the appropriate reaction temperature, quenching medium injection shorten the reaction time, control of the regenerated catalyst carbon content of 0.1%, in the fractionation tower control gasoline terminal boiling point is not greater than 185 ℃ and a series of technical measures to produce high-quality qualified 90 # Leaded gasoline is entirely viable.