管壳式甲醇合成反应器中的“汽垫层”在生产中的影响分析  

Impact of the"Steam Cushion"to Production in the Shell-and-tube Reactor for Methanol Synthesis

作　　者：张湘江[1] 张新凤[2] 

机构地区：[1]新疆天富热电股份有限公司,石河子832000 [2]兖矿鲁南化肥厂,滕州277527

出　　处：《煤化工》2010年第1期41-44,共4页Coal Chemical Industry

摘　　要：介绍了管壳式甲醇合成反应器的结构,提出了管壳式结构在运行中存在"汽垫层"的概念,分析了"汽垫层"产生的原因及在生产中的危害,指出"汽垫层"是导致上管板和换热管上端过热失效的主要影响因素,举例说明了管壳式甲醇合成反应器使用不当所产生的影响,并提出了预防和解决问题的方法。This paper gave an introduction to the structure of the shell-and-tube reactor for methanol synthesis application. It brings forward the concept of ＂cushion gas＂ that appears during the operation of such reactors.It tells the causes of the ＂cushion gas＂ and also the harm it does during operation.It pointed out that the ＂cushion gas＂ is the main fact that causes overheat to the upper tubesheet and the upper heat exchange tubes,and that makes them ineffective.The paper gave examples to show the impact of the improper use of the shell-and-tube reactor for methanol synthesis,and also the remedies for overcoming such problems.

关 键 词：管壳式甲醇合成反应器 汽垫层 绝热层 

分 类 号：TQ223.121[化学工程—有机化工]