氯对连续重整装置的影响及解决方案  

Influence of Chloride on CCR Unit and its Solution

作　　者：姚永先 刘春柳 王勇[1] YAO Yongxian;LIU Chunliu;WANG Yong(SINOPEC Qingdao Refining&Chemical Co.,Ltd.,Qingdao 266500,China)

机构地区：[1]中国石化青岛炼油化工有限责任公司,山东青岛266500

出　　处：《石油化工腐蚀与防护》2021年第2期20-23,共4页Corrosion & Protection In Petrochemical Industry

摘　　要：根据某公司连续重整装置的实际运行情况,从原料和催化剂再生注氯等方面分析了氯的来源,阐述了氯对装置各系统的影响,并提出了相应的解决方案。在预加氢系统中采用连续注水冲洗的方法,防止其结盐堵塞和腐蚀;在重整系统中增设脱氯设施,降低氯含量,减轻氯对后续装置的影响;采用树脂在线脱氯技术净化溶剂,脱除苯抽提系统溶剂中的氯,减缓溶剂老化和酸化。这些方案的实施为装置的长周期平稳运行提供了保障。Based on the actual operation of a CCR unit in a company,the source of chloride was analyzed from the aspects of raw material and catalyst regeneration.The influence of chloride on each system was discussed and corresponding solutions were proposed.The method of continuous water injection was adopted in the pre-hydrogenation system to prevent salt blocking and reduce corrosion;dechlorination facilities were added in CCR unit to reduce chloride content and its influence on subsequent units;resin was used in the on-line dechlorination process for benzene extraction system to purify solvent,remove chloride in the solvent as well as slow down aging and acidification of the solvent.These measures ensured the long-term stable operation of the device.

关 键 词：连续重整 氯 结盐 注水 脱氯 溶剂净化 

分 类 号：TE96[石油与天然气工程—石油机械设备]