Optimization Design of the Solvent Naphtha Separating Distillation Scheme by the Method of Process Simulation

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Abstract Solvent naphtha is one of the most important petrochemical products. Distillation separation sequence is the main method to produce different solvent naphthas with varied characteristic. Adjusting the ratio of different products and operating parameters in the distillation separation sequence can effectively improve the yield and quality of these products, and also save energy. Establishing the simulating model in Aspen Plus, the performance of the distillation scheme for separating solvent naphtha was investigated by the method of process simulation. Based on the separating object, the initial operating parameters of the distillation columns were calculated by the DUSTWU model. Then, by adopting the RADFRAC model, the optimizing process of the operating parameters of the distillation columns was completed by the method of univariate analysis. Reflux ratio, theoretical tray number, feed stage position and distillation rate were the main operating parameters to be studied, and the optimized solvent naphtha distillation separating scheme was finally obtained.

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	Articles by authors
	Chen Jianjuan
	Yang Zujie
	Zhang Wei
	Cong Shan

Keywords： solvent naphtha； distillation scheme； process simulation

Received 2018-06-08;

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Chen Jianjuan, Yang Zujie, Zhang Wei, Cong Shan.Optimization Design of the Solvent Naphtha Separating Distillation Scheme by the Method of Process Simulation[J] Chemcial Industry and Engineering, 2019,V36(2): 59-65

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