论文部分内容阅读
使用Aspen Plus软件对PODE精制过程进行了模拟和优化,以精制塔塔釜液中甲缩醛及甲醇的质量分数均不超过0.1%为分离指标,考察了常压条件下理论塔板数、进料位置及回流比对分离效率和能耗的影响。研究表明,PODE精制过程最优化工艺条件为:理论塔板数为16,进料板为第10块,回流比为1.5。在此条件下,甲缩醛、甲醇的脱除效率分别为99.9%、99.1%,均能满足分离要求。
The Aspen Plus software was used to simulate and optimize the PODE refining process. The mass fraction of methylal and methanol in refined bottoms was less than 0.1% as the separation index. The theoretical plate number under normal pressure was investigated. Effect of material location and reflux ratio on separation efficiency and energy consumption. The results showed that the optimum process conditions of PODE refining process were as follows: the number of theoretical plates was 16, the feed plate was No. 10 and the reflux ratio was 1.5. Under these conditions, the removal efficiencies of methylal and methanol are 99.9% and 99.1% respectively, which can meet the separation requirements.