工业管式反应器中乙烷蒸汽裂解过程的建模与优化

›› 2020, Vol. 22 ›› Issue (4): 117-125.

• Simulation and Optimization • 上一篇下一篇

工业管式反应器中乙烷蒸汽裂解过程的建模与优化

Mohsin Ali¹,廖祖维¹,杨遥¹,孙婧元²,蒋斌波³,王靖岱⁴,阳永荣⁴

1. 浙江大学化工学院
2. 浙江大学化学工程与生物工程学院
3. 浙江大学化学工程与生物工程学院
4. 浙江大学化学工程与生物工程学系

收稿日期:2020-04-08 修回日期:2020-05-18 出版日期:2020-12-30 发布日期:2020-12-30
通讯作者: 廖祖维 E-mail:15068118098@139.com
作者简介:2020-05-08
基金资助:
国家自然科学基金;煤炭高效利用与绿色化工国家重点实验室基金

Modeling and optimization of ethane steam cracking process in an industrial tubular reactor with improved reaction scheme

Received:2020-04-08 Revised:2020-05-18 Online:2020-12-30 Published:2020-12-30
Supported by:
National Natural Science Foundation of China;Foundation of State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering

摘要/Abstract

摘要： Ethane steam cracking process in an industrial reactor was investigated. A 1-demsional (1D) steady-state model was developed firstly by using an improved molecular reaction scheme and then simulated in Aspen Plus. A comparison of model results with industrial data and previously reported results showed that the model can predict the process kinetics more accurately. In addition, the validated model was used to study the effects of different process variables, including coil outlet temperature (COT), steam-to-ethane ratio and residence time on ethane conversion, ethylene selectivity, products yields and coking rate. Finally, steady-state optimization was conducted to the operation of industrial reactor. The COT and steam-to-ethane ratio were taken as decision variables to maximize the annual operational profit.

关键词: Ethane steam cracking, Tubular reactor, Aspen Plus, Molecular reaction scheme, Process simulation, Process optimization

Abstract: Ethane steam cracking process in an industrial reactor was investigated. A 1-demsional (1D) steady-state model was developed firstly by using an improved molecular reaction scheme and then simulated in Aspen Plus. A comparison of model results with industrial data and previously reported results showed that the model can predict the process kinetics more accurately. In addition, the validated model was used to study the effects of different process variables, including coil outlet temperature (COT), steam-to-ethane ratio and residence time on ethane conversion, ethylene selectivity, products yields and coking rate. Finally, steady-state optimization was conducted to the operation of industrial reactor. The COT and steam-to-ethane ratio were taken as decision variables to maximize the annual operational profit.

Key words: Ethane steam cracking, Tubular reactor, Aspen Plus, Molecular reaction scheme, Process simulation, Process optimization

Mohsin Ali 廖祖维杨遥孙婧元蒋斌波王靖岱阳永荣. 工业管式反应器中乙烷蒸汽裂解过程的建模与优化[J]. , 2020, 22(4): 117-125.

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工业管式反应器中乙烷蒸汽裂解过程的建模与优化

Modeling and optimization of ethane steam cracking process in an industrial tubular reactor with improved reaction scheme

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