稀醋酸脱水系统的模拟优化及其控制  

Simulating optimization and control of dilute acetic acid dehydration system

作　　者：王意[1] 李绍军[1] 

机构地区：[1]华东理工大学化工过程先进控制和优化技术教育部重点实验室,上海200237

出　　处：《现代化工》2016年第7期170-173,共4页Modern Chemical Industry

基　　金：国家自然科学基金项目(21176072)

摘　　要：通过萃取与共沸精馏联合工艺来提纯质量分数10%的稀醋酸废水,利用Aspen Plus对工艺流程进行稳态模拟优化得出最佳的原料去萃取塔比例为23%,使用简化的Guthrie关系式进行设备投资和操作费用估算。在稳态模型的基础上设计了2种控制方案,用Aspen Dynamics进行动态模拟,在进料组分扰动和流量扰动下进行测试,找出较优的控制方案。10% Concentration of dilute acetic acid is purified through extraction and azeotropic distillation combined process. This process is simulated and optimized at steady state. The optimal proportion of raw material to extraction column is 23%. Equipment investments and operating costs are calculated by simplified Guthrie equation. Two kinds of control scheme are designed on the basis of the steady-state model. The models are simulated through Aspen Dynamics and tested under the disturbance of feed composition and flow rate. An optimum control scheme is finally identified.

关 键 词：萃取 共沸精馏 稀醋酸脱水 稳态优化 动态模拟 控制 

分 类 号：TQ021[化学工程]