己内酰胺的前聚工艺控制与优化

Process control and optimization of caprolactam pre-polymerization

分析了己内酰胺前聚工艺中预热器、前聚反应器温度、回流量及物料液位对前聚和后聚产品质量的影响,找出己内酰胺前聚最佳控制方式和工艺参数:预热器温度最高值为220℃,前聚反应器温度为267-272℃,回流量为90-95 L／h,物料液位为50％。

The effects of pre-heater and pre-polymerization reactor temperatures, reflux rate and material level on product quality were studied during caprolactam pre-polymerization and post-polymerization. The caprolactam pre-polymerization process parameters were optimized as followed:pre-heater temperature maximum 220℃, pre-polymerization reactor temperature 267-272℃, reflux rate 90-95 L/h, material level 50%.