Numerical simulation and optimization of dimethyl carbonate melt crystallization based on computational fluid dynamicsOA
Dimethyl carbonate(DMC)is widely used in organic synthesis and lithium battery industries.Melt crystallization,as a green manufacturing method,is highly important for the production of DMC with ultra-high purity.Herein,a two-dimensional transient Computational Fluid Dynamics(CFD)model was developed utilizing the enthalpyporosity approach to simulate the layer melt crystallization process of DMC.The fluid dynamic and thermodynamic phenomena during the evolution of the crystal layer under various conditions were investigated.The findings suggest that natural convection heat transfer plays a crucial role in determining the distribution of the crystal layer.Moreover,the heating temperatures were optimized based on the specificity of DMC melt layer crystallization to enhance the heat transfer during crystallization.Afterwards,a general correlation model for crystallization time,crystal fraction,and heat transfer rate was established by non-dimensional analysis.The results presented in this work could be used to optimize the melt crystallization process of DMC and to facilitate better understanding of heat and mass transfer during melt crystallization.
Mingyu Chen;Jingyu Li;Jun Qian;Yuefeng Wu;Xin Xu;Mingpu Yuan;Ting Wang;Na Wang;Xin Huang;Hongxun Hao
National Engineering Research Center of Industrial Crystallization Technology,School of Chemical Engineering and Technology,Tianjin University,Tianjin,300072,ChinaNational Engineering Research Center of Industrial Crystallization Technology,School of Chemical Engineering and Technology,Tianjin University,Tianjin,300072,ChinaHigh-end chemicals and cutting-edge new materials Technology Innovation Center of Hefei,Hefei,230ooo,ChinaHigh-end chemicals and cutting-edge new materials Technology Innovation Center of Hefei,Hefei,230ooo,ChinaHigh-end chemicals and cutting-edge new materials Technology Innovation Center of Hefei,Hefei,230ooo,ChinaNational Engineering Research Center of Industrial Crystallization Technology,School of Chemical Engineering and Technology,Tianjin University,Tianjin,300072,ChinaNational Engineering Research Center of Industrial Crystallization Technology,School of Chemical Engineering and Technology,Tianjin University,Tianjin,300072,China Collaborative Innovation Center of Chemical Science and Engineering(Tianjin),Tianjin,300072,China State Key Laboratory of Chemical Engineering,School of Chemical Engineering and Technology,Tianjin University,Tianjin,300072,ChinaNational Engineering Research Center of Industrial Crystallization Technology,School of Chemical Engineering and Technology,Tianjin University,Tianjin,300072,China Collaborative Innovation Center of Chemical Science and Engineering(Tianjin),Tianjin,300072,China State Key Laboratory of Chemical Engineering,School of Chemical Engineering and Technology,Tianjin University,Tianjin,300072,ChinaNational Engineering Research Center of Industrial Crystallization Technology,School of Chemical Engineering and Technology,Tianjin University,Tianjin,300072,China Collaborative Innovation Center of Chemical Science and Engineering(Tianjin),Tianjin,300072,China State Key Laboratory of Chemical Engineering,School of Chemical Engineering and Technology,Tianjin University,Tianjin,300072,ChinaNational Engineering Research Center of Industrial Crystallization Technology,School of Chemical Engineering and Technology,Tianjin University,Tianjin,300072,China Collaborative Innovation Center of Chemical Science and Engineering(Tianjin),Tianjin,300072,China State Key Laboratory of Chemical Engineering,School of Chemical Engineering and Technology,Tianjin University,Tianjin,300072,China
化学化工
Layer melt crystallizationComputational fluid dynamicsNatural convectionNon-dimensional analysis
《Green Chemical Engineering》 2026 (3)
P.318-326,9
financial support of the National Natural Science Foundation of China(Grant number U22A201195)the High-end chemicals and cutting-edge new materials Technology Innovation Center of Hefei(Grant number ECEC-HCHC202208)。
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