工艺参数对降低催化裂化汽油烯烃含量的影响

Effects of Processing Parameters on Reducing Olefin Content in Catalytic Cracking Gasoline

探讨了催化裂化装置各种主要工艺参数对汽油产品中烯烃含量的影响及机理,提出了在2 500 kt/a催化裂化装置上,通过逐渐调整操作参数,降低催化裂化汽油烯烃含量的措施。通过提高催化剂活性、降低反应温度、降低原料预热温度、提高烃分压、提高第二反应区催化剂藏量、注入终止剂、提高剂油比、延长反应时间、提高汽油终馏点等措施,可以有效降低催化裂化装置汽油产品中烯烃体积分数8.1个百分点。

The effects and mechanism of each major processing content in gasoline product were discussed. Measures parameter of catalytic cracking plant on olefin through reducing olefin content in catalytic cracking gasoline in the 2 Through a series of measures as improving catalyst activity preheating temperature,increasing olefin partial pressure and injecting terminator, improving agent and oil ratio, prolonging point of gasoline, the volume fraction of olefin in gasoline effectively reduced by 8.1 percent points. gradually adjusting operating parameters for 500 kt/a catalytic cracking plant were raised. , reducing reaction temperature and feedstock catalyst amount in the second reaction region, reaction period, and increasing distillation end products of catalytic cracking plant could be