Cause Analysis and Improvement of Scale Formation in High Pressure Recycle Gas System of High Pressure Polyethylene Plant
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.
high pressure polyethylenehigh pressure recycle gas systempolymerfoulingdefouling
万方数据
维普
