Design and control of a p-xylene oxidation process

doi:10.1016/j.cjche.2015.09.009

Chin.J.Chem.Eng. ›› 2015, Vol. 23 ›› Issue (12): 1935-1944.DOI: 10.1016/j.cjche.2015.09.009

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Design and control of a p-xylene oxidation process

Lili Tao¹, ZhihuaHu¹, Feng Qian²

1 College of Engineering, Shanghai Second Polytechnic University, Shanghai 201209, China;
2 Key Laboratory of Advanced Control and Optimization for Chemical Processes, Ministry of Education, East China University of Science and Technology, Shanghai 200237, China

Received:2015-05-25 Revised:2015-07-27 Online:2016-01-19 Published:2015-12-28
Contact: Lili Tao, Feng Qian
Supported by:
Supported by the Major State Basic Research Development Program of China (2012CB720500), the National Natural Science Foundation of China (U1162202), the Shanghai Second Polytechnic University Key Discipline Construction (4th term)-Control Theory & Control Engineering (XXKPY1308), the Cultivation Program of Young Teachers in Colleges and Universities of Shanghai (ZZegd14013) and the School Foundation of Shanghai Second Polytechnic University (EGD14XQD02).

Design and control of a p-xylene oxidation process

Lili Tao¹, ZhihuaHu¹, Feng Qian²

1 College of Engineering, Shanghai Second Polytechnic University, Shanghai 201209, China;
2 Key Laboratory of Advanced Control and Optimization for Chemical Processes, Ministry of Education, East China University of Science and Technology, Shanghai 200237, China

通讯作者: Lili Tao, Feng Qian
基金资助:
Supported by the Major State Basic Research Development Program of China (2012CB720500), the National Natural Science Foundation of China (U1162202), the Shanghai Second Polytechnic University Key Discipline Construction (4th term)-Control Theory & Control Engineering (XXKPY1308), the Cultivation Program of Young Teachers in Colleges and Universities of Shanghai (ZZegd14013) and the School Foundation of Shanghai Second Polytechnic University (EGD14XQD02).

Abstract

Abstract: The p-xylene (PX) oxidation process is of great industrial importance because of the strong demand of the global polyester fiber. A steady-state model of the PX oxidation has been studied by many researchers. In our previous work, a novel industrial p-xylene oxidation reactor model using the free radical mechanism based kinetics has been developed. However, the disturbances such as production rate change, feed composition variability and reactor temperature changes widely exist in the industry process. In this paper, dynamic simulation of the PX oxidation reactorwas designed by Aspen Dynamics and used to develop an effective plantwide control structure, which was capable of effectively handling the disturbances in the load and the temperature of the reactor. Step responses of the control structure to the disturbances were shown and served as the foundation of the smooth operation and advanced control strategy of this process in our future work.

Key words: p-Xylene oxidation, Dynamic simulation, Aspen Dynamics, Process design and control

摘要： The p-xylene (PX) oxidation process is of great industrial importance because of the strong demand of the global polyester fiber. A steady-state model of the PX oxidation has been studied by many researchers. In our previous work, a novel industrial p-xylene oxidation reactor model using the free radical mechanism based kinetics has been developed. However, the disturbances such as production rate change, feed composition variability and reactor temperature changes widely exist in the industry process. In this paper, dynamic simulation of the PX oxidation reactorwas designed by Aspen Dynamics and used to develop an effective plantwide control structure, which was capable of effectively handling the disturbances in the load and the temperature of the reactor. Step responses of the control structure to the disturbances were shown and served as the foundation of the smooth operation and advanced control strategy of this process in our future work.

关键词: p-Xylene oxidation, Dynamic simulation, Aspen Dynamics, Process design and control

Lili Tao, ZhihuaHu, Feng Qian. Design and control of a p-xylene oxidation process[J]. Chin.J.Chem.Eng., 2015, 23(12): 1935-1944.

Lili Tao, ZhihuaHu, Feng Qian. Design and control of a p-xylene oxidation process[J]. Chinese Journal of Chemical Engineering, 2015, 23(12): 1935-1944.

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Design and control of a p-xylene oxidation process

Design and control of a p-xylene oxidation process

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