催化裂化装置分馏塔顶循油作再吸收油分析  

Analysis of Re-absorbed Oil from Fractionator Top of FCC Unit

作　　者：张明申 Zhang Mingshen(SINOPEC Luoyang Company,Luoyang 471012, Henan,China)

机构地区：[1]中国石油化工股份有限公司洛阳分公司

出　　处：《四川化工》2019年第3期28-29,33,共3页Sichuan Chemical Industry

摘　　要：某公司一催化装置原是用轻柴油作再吸收塔吸收剂,干气C3吸收效果不佳。2017年7月,分馏塔顶循油作再吸收油流程改造完成后投用,再吸收油返分馏塔仍是走原流程进入分馏塔,干气C3含量由2.24%下降至1.84%,而且分馏塔一中热量充足,解吸塔底蒸汽用量由3t/h下降至1.4t/h,年增效益440万元。A catalytic unit of a company used light diesel oil as resorbent,but the absorption effect of dry gas C3 was not good. In July 2017, the top of the fractionator was put into operation after the revamping of the reabsorbed oil process. The reabsorbed oil returning fractionator still went into the fractionator after the original process. The C3 content of dry gas decreased from 2.24% to 1.84%, and there was sufficient heat in the first fractionator. The steam consumption at the bottom of the desorption tower decreased from 3 t/h to 1.4 t/h, with an annual benefit of 4.4 million yuan.

关 键 词：催化裂化 再吸收塔 再吸收油 顶循油 干气C3含量 

分 类 号：TQ053.5[化学工程]