600kt/a催化裂化装置的MIP工艺技术改造

APPLICATIONS OF MIP TECHNOLOGY ON A 0.6 Mt/a FCC UNIT

为了降低催化裂化汽油的烯烃含量,延长石油榆林炼油厂对600kt/a催化裂化装置进行MIP技术改造。MIP工艺技术改造后,装置具有较强的重油裂化能力和适宜的氢转移反应促进能力。在原料性质及组成基本相当的情况下,装置汽油收率和柴油收率较改造前有所提高,汽油烯烃含量大幅降低,液化气和油浆收率下降,同时干气和焦炭的产率小幅降低,总液体收率上升,产品分布良好。MIP工艺技术改造后装置总能耗下降182.11MJ/t。

In order to reduce the olefin content in FCC gasoline, the 0.6 Mt/a FCC unit of Yulin Refinery was revamped with MIP technology. After the revamping, the unit exhibited improved heavy oil crackability and moderate hydrogen transfer performance. Under the similar feedstock compositions and properties as compared with prior to revamping, the yields of gasoline and diesel fuel increased, the olefin content in FCC gasoline reduced significantly, the yields of LPG and slurry oil decreased, as well as the dry gas and coke yields decreased a little, the total liquid yield increased and the product distributions were good. Besides, the total energy consumption reduced 182.11 MJ/t after revamping.