This papar dealt with the occurrence of explosive polymerization in Daqing 140kt/ a plant and found that it is mainly caused by high concentration of CAT, comonomer, slurry, and ethylene moleculs in polymerizing zone. 本文研究分析大庆140kt/a装置的爆聚事故,主要是由于催化剂、共聚单体、浆液和聚合中心乙烯分子浓度高所引起的。
Cause and Prevention of Explosive Polymerization in Slurry Process HDPE 淤浆法HDPE反应器内爆聚的原因分析及预防
Propylene in the unit are flammable and explosive substances. And the products acrylic acid have high tendency of polymerization. Equipment and piping would be blocked and safe production would be impacted in case of self polymerization. 装置内的丙烯为易燃易爆的介质,且产品丙烯酸具有较高的聚合倾向,一旦出现自聚将会造成设备和管道的堵塞,影响生产正常进行。
It was found that reaction temperature has great impact in the reaction process: when the temperature is high, polymerization reacted rapidly, but overly temperature may bring about explosive polymerization; If the temperature is too low the reaction may be not occur. 实验发现,反应温度对反应过程影响较大,具体表现为:反应温度高时,聚合反应迅速进行,甚至由于反应过于剧烈而出现爆聚现象;反应温度低时,聚合反应进行缓慢,甚至不发生聚合。