Comprehensive Simulation and Optimization of an Ethylene Dichloride Cracker Based on the One-Dimensional Lobo鈥揈vans Method and Computational Fluid Dynamics

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• 作者：Chaochun Li ; Guihua Hu ; Weimin Zhong ; Hui Cheng ; Wenli Du ; Feng Qian
• 刊名：Industrial & Engineering Chemistry Research
• 出版年：2013
• 出版时间：January 16, 2013
• 年：2013
• 卷：52
• 期：2
• 页码：645-657
• 全文大小：775K
• 年卷期：v.52,no.2(January 16, 2013)
• ISSN：1520-5045

文摘

Coupled simulations of an ethylene dichloride (EDC) cracking furnace and reactor are conducted using one-dimensional Lobo鈥揈vans and computational fluid dynamics (CFD) models. Optimization is performed using the first model, in which the fuel gas allocation operator 伪 is investigated to improve performance indices such as selectivity, conversion, and fuel gas consumption (per vinyl chloride monomer production). The optimum coil outlet temperature (COT) is suggested to make a good compromise among the performance indices. The CFD model is used to validate the optimized results. A standard k鈭捨?/i> two-equation model is applied to simulate turbulence, and a finite-rate/eddy dissipation model is used to model a premixed combustion of the sidewall burners. The discrete ordinate model is applied to simulate the radiative heat transfer of a furnace in a CFD simulation. The EDC cracking process in the reactor, as well as the flow, combustion, and radiative heat transfer in the furnace, is provided in the CFD model.