摘要
某公司25万吨/年管式法高压聚乙烯装置(又称管式低密度聚乙烯装置)的高压循环系统中循环乙烯与熔融聚合物不能有效地分离,同时产生大量的低分子聚合物,从而产生换热器结垢的现象,对装置的长周期运行影响较大。本文主要阐述了高压循环系统结垢的危害、原因及预防和处理措施,对控制结垢现象有指导意义。
In the high pressure recycle gas system of a company's 250,000-ton/year tubular method high-pressure polyethylene device(also known as tubular low-density polyethylene device),recycle ethylene and molten polymer can not be effectively separated,and a large number of low molecular weight polyethylene is produced,resulting in the phenomenon of heat exchanger scale,which has a great impact on the long-term operation of the device.In this paper,the harm,cause,prevention and treatment measures of scale formation in high pressure recycle gas system are described,which is of guiding significance to control scale formation.
作者
折军
She Jun(Zhongtian Synergetic Energy Co.,Ltd.,Ordos,China)
出处
《科学技术创新》
2024年第1期67-71,共5页
Scientific and Technological Innovation
关键词
高压聚乙烯
高压循环系统
聚合物
结垢
除垢
high pressure polyethylene
high pressure recycle gas system
polymer
fouling
defouling