汽油铜片腐蚀不合格的原因分析及对策  

ANALYSIS OF OFF-SPECIFICATION OF GASOLINE COPPER CORROSION AND COUNTERMEASURES

作　　者：李丙庚[1] 

机构地区：[1]中国石化济南分公司,济南250101

出　　处：《石油炼制与化工》2014年第1期77-80,共4页Petroleum Processing and Petrochemicals

摘　　要：针对中国石化济南分公司催化裂化精制汽油铜片腐蚀经常不合格,并导致成品调合罐样品常常出现铜片腐蚀不合格的情况,对原因进行分析并提出应对措施。结果表明,成品汽油铜片腐蚀不合格的原因是第一套催化裂化装置(简称一催化)的精制汽油中含有多硫化物等活性硫化物,由一催化精制汽油原料所含直馏汽油中的单质硫转化而来。通过更改工艺,将含有单质硫的一催化稳定汽油和部分二催化稳定汽油进S Zorb装置,剩余的二催化稳定汽油则进入脱硫脱臭单元,从而解决了成品汽油铜片腐蚀不合格的问题。The copper corrosion test of refined FCC gasoline and gasoline product in pool is often not qualified in SINOPEC Jinan Company. The cause of off-specification of gasoline copper corrosion was an- alyzed and countermeasures were put forward. It is found that the element sulfur in refined FCC gasoline from straight run gasoline（SRG） is the main reason for that phenomenon. The problem of off-specifica- tion of gasoline copper corrosion has now been solved completely by means of changing process scheme where the SRG containing elemental sulfur,the stabilized gasoline from the No. 1 catalytic cracking unit and part of the stabilized gasoline from the No. 2 catalytic cracking unit are processed in S Zorb unit and the remaining stabilized gasoline from the No. 2 catalytic cracking unit is sent to gasoline desulfurization and deodorization unit.

关 键 词：铜片腐蚀 活性硫化物 多硫化物 催化裂化精制汽油 直馏汽油 

分 类 号：TE986[石油与天然气工程—石油机械设备]