催化裂化装置再吸收塔吸收剂的选择  

Absorbent Selection of Secondary Absorber in FCC Unit

作　　者：吕洁 张勇 Lv Jie;ZHANG Yong(Shanghai Hoto Engineering Inc. Shanghai 201203)

机构地区：[1]上海河图工程股份有限公司,上海201203

出　　处：《化工管理》2018年第13期194-195,共2页Chemical Engineering Management

摘　　要：在相同的操作压力和温度条件下,采用顶循环油和轻柴油分别对进入再吸收塔的贫气进行吸收,结果表明:虽然顶循环油对液化石油气组分的吸收能力和选择性都优于轻柴油,但是顶循环油中的汽油组分更容易被携带进入干气,从布置和节能的角度看,再吸收塔更适宜选择轻柴油作为吸收剂。The primary absorber overhead enters the bottom of the secondary absorber and counter-contacts with the fractionator top pumparound and light cycling oil respectively at the same pressure and temperature.The results show that：absorbability and selectivity to liquefed petroleum gas of the fractionator top pumparound is better than light cycling oil,but the gasoline component in fractionator top pumparound is carried by dry gas more easily.From the point of layout and energy consumption light cycling oil as absorbent is more suitable for secondary absorber.

关 键 词：再吸收塔 吸收剂 顶循环油 轻柴油 

分 类 号：TE624.41[石油与天然气工程—油气加工工程] TQ424[化学工程]