1.The purpose of polymethylene polyphenyl polyamines purification system is to get rid of anilin and water.The stripping tower and drying tower are two main separation units in the system.

1.多精制系统的任务是脱除粗多中的水,针对现有工艺存的精制效果差、消耗题,分别对影响汽提塔干燥塔的因素进行了模拟分析,提出了相应的改进措施。