利用Aspen Plus结合工厂的实际设备和工艺参数以及生产数据建立了电石法氯乙烯精馏工艺的模拟流程，分别对低沸塔和高沸塔的进料位置、回流比等主要操作参数进行了灵敏度分析和优化计算，获得了一致的最佳工艺参数。低沸塔进料位置为4块板，回流比为6；高沸塔进料位置为21块板，回流比为0.3。

A simulation flowsheet of distillation process for vinyl chloride production by calcium carbide method is established by Aspen Plus on the base of actual equipment,process parameters and production data.The sensitivity analysis and optimization calculation are carried out upon the main operational parameters of low boiling tower and high boiling tower,such as position of feed entry,reflux ratios etc.The coherent optimal operational parameters are obtained as follows:the position of feed entry is at the fourth plate for the low boiling tower and at the 21st plate for the high boiling tower,and the reflux ratio is 6 and 0.3 respectively.