醋酸甲酯侧反应精馏过程的多变量动态控制

doi:10.11949/j.issn.0438-1157.20151984

化工学报 ›› 2016, Vol. 67 ›› Issue (3): 919-924.DOI: 10.11949/j.issn.0438-1157.20151984

醋酸甲酯侧反应精馏过程的多变量动态控制

薄翠梅¹, 黄庆庆¹, 汤吉海², 张广明¹, 乔旭²

1. 南京工业大学电气工程与控制科学学院, 江苏南京 211816;
2. 南京工业大学化学化工学院, 江苏南京 211816

收稿日期:2015-12-28 修回日期:2016-01-08 出版日期:2016-03-05 发布日期:2016-01-12
通讯作者: 薄翠梅
基金资助:
国家自然科学基金项目(61203020,21276126;61403190);江苏省自然科学基金项目(BK20141461)。

Multi-variable dynamic control of distillation column with side reactors for methyl acetate production

BO Cuimei¹, HUANG Qingqing¹, TANG Jihai², ZHANG Guangming¹, QIAO Xu²

1. College of Electrical Engineering and Control Science, Nanjing Tech University, Nanjing 211816, Jiangsu, China;
2. College of Chemistry and Chemical Engineering, Nanjing Tech University, Nanjing 211816, Jiangsu, China

Received:2015-12-28 Revised:2016-01-08 Online:2016-03-05 Published:2016-01-12
Contact: 67
Supported by:
supported by the National Natural Science Foundation of China (61203020, 21276126, 61403190) and the Natural Science Foundation of Jiangsu Province (BK20141461).

摘要/Abstract

摘要：

侧反应器与精馏塔的耦合结构与物料交换方式的灵活性,造成系统的自由度高、设计变量多,增加了该过程的稳态优化模拟和动态控制的难度。针对侧反应精馏过程(SRC)的平滑操作和自动控制问题,以醋酸甲酯工业生产过程为例,采用基于独立反应量的稳态设计方法获取最佳的反应精馏集成结构和操作参数,在此基础上设计了以产品成分调节变比值控制为主的多变量控制方案,并通过在Aspen流程模拟软件建立醋酸甲酯侧反应精馏动态流程模拟系统,验证控制方案的有效性。

关键词: 醋酸甲酯, 侧反应精馏, 稳态模拟, 动态控制

Abstract:

The distillation column with side reactors (SRC) process allowing a more flexible way of coupling reaction and separation leads to the increase in the freedom of the system and the number of design variables, which consequently increases the difficulty in the process simulation, optimization and dynamic control. For smooth operation and automatic control of the SRC process, with the SRC integration technique in the production of methyl acetate production process as an example, the steady-state optimization, dynamic control and simulation are discussed in the paper. To obtain the optimum integrated structure and the steady-state simulation of SRC for methyl acetate production, the systematic design approach based on the concept of independent reaction amount is applied to the process of SRC for methyl acetate production. Then multivariable control schemes based on product quality control with variable ratio control are designed and SRC of methyl acetate dynamic simulation based on process simulation software Aspen is used to verify the effectiveness of the control scheme. The simulation results show good control precision, robustness and dynamic follow performance of the control scheme.

Key words: methyl acetate, distillation column with side reactors, steady-state simulation, dynamic control

中图分类号:

TP13

薄翠梅, 黄庆庆, 汤吉海, 张广明, 乔旭. 醋酸甲酯侧反应精馏过程的多变量动态控制[J]. 化工学报, 2016, 67(3): 919-924.

BO Cuimei, HUANG Qingqing, TANG Jihai, ZHANG Guangming, QIAO Xu. Multi-variable dynamic control of distillation column with side reactors for methyl acetate production[J]. CIESC Journal, 2016, 67(3): 919-924.

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醋酸甲酯侧反应精馏过程的多变量动态控制

Multi-variable dynamic control of distillation column with side reactors for methyl acetate production

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