MTBE/1-丁烯装置腐蚀原因分析及防范措施探讨  

Causes and solution of corrosion in MTBE/1-butene unit

作　　者：张宇婷[1] 何德永 

机构地区：[1]中国石油化工股份有限公司化工事业部,北京100000 [2]中国石油化工股份有限公司齐鲁分公司橡胶厂,山东淄博255000

出　　处：《石化技术》2017年第11期34-35,158,共3页Petrochemical Industry Technology

摘　　要：本文分析了甲基叔丁基醚(MTBE)/1-丁烯装置的腐蚀原因。分析结果表明,合成MTBE反应使用的催化剂含有的残酸或磺酸根离子的脱落、系统含水形成酸性腐蚀环境,就形成了电化学腐蚀。根据腐蚀发生的原因对易腐蚀部位的防腐蚀措施进行了探讨,通过改善酸性环境,破坏其腐蚀发生的条件;提高有关设备管线的材质,增加装置耐腐蚀能力等措施,有效地控制了MTBE/1-丁烯装置的腐蚀问题。The causes of corrosion in methyl tert-butyl ether(MTBE)/1-butene unit are analyzed in this article. The results show that the residual acid or sulfate ion detached from the catalyst used in the synthesis of MTBE as well as acidic corrosion environment formed by water in the system lead to electrochemical corrosion. The anti-corrosion measures for corrosion sites are discussed according to the reasons of corrosion. The corrosion in MTBE/1-butene unit is controlled effectively by eliminating the acidic environment and the conditions of corrosion,switching the material of equipment and pipelines,and improving corrosion resistance of the plant.

关 键 词：甲基叔丁基醚 腐蚀 磺酸根 PH值 

分 类 号：TQ221.213[化学工程—有机化工] TQ223.24