液化石油气铜片腐蚀不合格的研究分析  

Research and analysis on unqualified copper corrosion of LPG

作　　者：葛玉翠 罗致爱 郭智慧 袁晓云 赵湘庆 贾红博 GE Yucui;LUO Zhiai;GUO Zhihui;YUAN Xiaoyun;ZHAO Xiangqing;JIA Hongbo(Shaanxi Coal Chemical Technology Research Institute Co.,Ltd.,Xi'an Shaanxi 710100,China;CNPC Changqing Petrochemical Company,Xianyang Shaanxi 712000,China)

机构地区：[1]陕西煤业化工技术研究院有限责任公司,陕西西安710100 [2]中国石油长庆石化分公司,陕西咸阳712000

出　　处：《石油化工应用》2023年第6期100-103,共4页Petrochemical Industry Application

摘　　要：针对中国石油长庆石化分公司液化石油气铜片腐蚀不合格现象,对引起液化石油气铜片腐蚀不合格的原因进行了分析。分析结果表明硫化氢及硫化物不是导致铜片腐蚀不合格的主要原因,由于原料变化,导致原料中含有含氧化合物,并最终形成有机酸,此类酸通过MDEA和脱硫剂无法去除,导致液化石油气铜片腐蚀不合格。Aiming at the unqualified corrosion of LPG copper sheet in Changqing Petrochemical Company,the causes of unqualified copper corrosion of LPG were analyzed.The analysis results show that hydrogen sulfide and sulfide are not the main reasons for unqualified copper corrosion.Due to the change of raw materials,oxygen-containing compounds are contained in the raw materials,and organic acids are finally formed.These acids cannot be removed by MDEA and desulfurizer,resulting in unqualified copper corrosion of LPG.

关 键 词：液化石油气 腐蚀 硫化氢 有机酸 

分 类 号：TE624.1[石油与天然气工程—油气加工工程]