四氢呋喃-水体系变压精馏工艺模拟及塔水力学分析优化
首发时间:2020-08-26
摘要:利用四氢呋喃-水体系在不同压力下共沸组成变化较大的特性,采用变压精馏工艺分离该共沸物,基于Aspen Plus流程模拟软件,采用"NRTL-RK"物性模型进行模拟,模拟结果表明:在101.325kPa到800kPa压力下,共沸组成变化大于5%;采用变压精馏可以有效分离四氢呋喃和水,得到的产品中四氢呋喃气体的质量分数大于99.0%,废水中四氢呋喃小于0.5%,其中高压塔10块理论板,进料位置为第8块板上进料,低压塔10块理论板,进料位置为第8块板上进料,回流比为3。
关键词: 四氢呋喃-水 Aspen Plus 共沸物 变压精馏 塔水力学分析优化
For information in English, please click here
Simulation of tetrahydrofuran-water variable pressure distillation process and optimization column hydraulics analysis
Abstract:The azeotrope was separated by variable pressures distillation process based on the characteristics of tetrahydrofuran-water system with great changes in the co-ransfer composition under different pressures. The physicalproperty model of "NRTL-RK" was used to simulate the azeotrppe based on Aspen Plus process simulation software. The simulation results showed that the co-transfer composition changed more than 5% at 101.325kPa to 800kPa. The massfraction of tetrahydrofuran gas in the obtained products is greater than 99.0%, and the massfraction of trtrahydrofuran in the waste water is less than 0.5%. Among them, there are 10 theroretical plates in the HP tower feeding on the 8th plate, 10 theroretical plates in the LP tower feeding on the 8th plate, and its reflux ratio is 3.
Keywords: tetrahydrofuran-water Aspen Plus azeotrope variable pressure distillation optimization of tower hydraulics analysis.
基金:
引用
No.****
动态公开评议
共计0人参与
勘误表
四氢呋喃-水体系变压精馏工艺模拟及塔水力学分析优化
评论
全部评论0/1000