PTA项目管道材料替换  

Material Replacement for Piping in PTA Project

作　　者：刘红 Liu Hong(Hunan Brunp Recycling Technology Co.,Ltd,Changsha 410000,China;Guangdong Brunp Recycling Technology Co.,Ltd,foshan 528137,China;Guangdong Provincial Key Laboratory of Battery Recycling Enterprises,foshan 528137,China)

机构地区：[1]湖南邦普循环科技有限公司,长沙410600 [2]广东邦普循环科技有限公司,广东佛山528137 [3]广东省电池循环利用企业重点实验室,广东佛山528137

出　　处：《化工设备与管道》2022年第4期85-88,共4页Process Equipment & Piping

基　　金：广东省电池循环利用企业重点实验室(2021年度)(2021B1212050002);国家重点研发计划“固废资源化”(2018YFC1901803)。

摘　　要：介绍某国产化PTA工艺,此工艺由于操作介质中的溴离子、醋酸、氢氧化钠,对材料有很强的腐蚀性,容易出现均匀腐蚀、局部腐蚀、氢腐蚀等,因此对管道设计中材料的选择尤为关键。分析了此PTA项目中材料的使用情况,并对项目中遇到的材料替换问题进行具体分析,论证替换是可靠并符合标准要求的。One domestic PTA process was introduced in this article.In the mediums treated in this process include bromine ion,acetic acid and sodium hydroxide,which are strongly corrosive and often result in uniform corrosion,local corrosion and hydrogen corrosion.Thus,it is crucial to select correct material for piping design in engineering.The use of the materials in PTA project was analyzed,especially the issue of material replacement in application was concretely analyzed,from which the material replacement has been validated to be reliable and in conform to the requirements in standard.

关 键 词：PTA 腐蚀 317L 2205双相钢 316L 

分 类 号：TQ050.4[化学工程] TH14[一般工业技术—材料科学与工程]