Process Simulation on Crude Naphthalene Purification by Extractive Distillation

Abstract:

The impurity of benzothiophthene can be removed by extractive distillation in the crude naphthalene purification process. A process simulation has been studied on the crude naphthalene purification. In the case of ensuring each fraction's naphthalene concentration, a sensitivity analysis is made to determine the optimal conditions by varying extractive distillation parameters such as the feed stage, the reflux ratio and the distillate rate. Besides controlling of the sensitive plate for the recovery section is also discussed.

• Periodical: Advanced Materials Research (Volumes 860-863)
• Pages: 994-1002
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.860-863.994
• Online since: December 2013
• Authors: Zhao Xiang Yu, Yi Jun Wang, Heng Bo Huang
• Keywords: Benzothiophene, Crude Naphthalene, Extractive Distillation, Sensitivity Analysis

References

[1] S.D. Wang, C.W. Yan, Y.Z. Deng and S.C. Zhao: Coal Conversion, Vol. 61 (1992), p.13 (in Chinese).

[2] C.S. Wang, Y.M. Sun: Journal of Polymerscience. Part A, Polymerchemistry, Vol. 32 (2003), p.1295.

[3] X.Y. She: Simulation of Coal Tar Separation Process (MS., East China University of Science & Technology, China 2012), p.63 (in Chinese).

[4] X.Q. Ruan, C.T. Guo: Gas & Heat, Vol. 11 (1991), p.15 (in Chinese).

[5] H.Y. Wang, R.Y. Wang and Z.L. Xu: Chemical World, Vol. 48 (2007), p.148 (in Chinese).

[6] H. Renon, J.M. Prausnitz: AIChE Journal, Vol. 14 (1968), p.135.

[7] H.Y. Wang, R.Y. Wang and Z.L. Xu: Fuel & Chemical Processes, Vol. 39 (2008), p.41 (in Chinese).

[8] G.Y. Luan, W.P. Gao, Y.J. Liu Yanjie and Z.J. Zhuang: Chemical Engineering Design, Vol. 12 (2002), p.18 (in Chinese).