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Simulation, optimization and control of the process of synthesis of ethyl propionate by reactive distillation
Chemical Engineering and Processing: Process Intensification ( IF 4.3 ) Pub Date : 2022-01-07 , DOI: 10.1016/j.cep.2022.108779
Peng Du 1 , Xiaohong Wang 1 , Zenghu Tian 1 , Jingxuan Chen 1 , Xin Ding 1
Affiliation  

This paper proposes the continuous production process of ethyl propionate by reactive distillation and the energy-saving heat pump reactive distillation process. The process is optimized with the goal of minimizing the total annual cost (TAC). In response to energy saving and emission reduction, the cost of CO2 emissions is considered in TAC. The results show that, compared with the conventional reactive distillation process, the CO2 emission cost of the heat pump reactive distillation process is reduced by 59.39%, and TAC is reduced by 17.09%, which shows that the heat pump reactive distillation process is more economical and more environmentally friendly. The dynamic control research of conventional reactive distillation and heat pump reactive distillation is carried out. The temperature control schemes CS1 and CS2 are respectively proposed, and the dynamic response of CS1 and CS2 under external disturbances is analyzed. The test results show that both CS1 and CS2 can simply and effectively control product quality, indicating that the heat pump reactive distillation process also has practical advantages in terms of automatic control. The above conclusions provide the basis for the design and implementation of the continuous production of ethyl propionate, as well as a reference for solving similar problems.



中文翻译:

反应精馏合成丙酸乙酯工艺的模拟、优化与控制

提出了反应精馏连续生产丙酸乙酯工艺和节能型热泵反应精馏工艺。该流程经过优化,目标是最小化年度总成本 (TAC)。为响应节能减排,TAC中考虑了CO 2排放成本。结果表明,与传统的反应精馏工艺相比,CO 2热泵反应精馏工艺排放成本降低59.39%,TAC降低17.09%,说明热泵反应精馏工艺更经济、更环保。开展常规反应精馏和热泵反应精馏的动态控制研究。分别提出了温度控制方案CS1和CS2,分析了CS1和CS2在外界干扰下的动态响应。试验结果表明,CS1和CS2均能简单有效地控制产品质量,说明热泵反应精馏工艺在自动化控制方面也具有实际优势。以上结论为丙酸乙酯连续化生产的设计与实施提供了依据,

更新日期:2022-01-20
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