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Vol. 25 No. 16 (2013): Vol 25 Issue 16

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Steam Consumption on Solvent Recovery Distillation of 1500t/a Propylene Oxide Pilot Plant: Simulation and Optimization

https://doi.org/10.14233/ajchem.2013.14904
Yi-Chuan Li
State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai, P.R. China
Ben-Xian Shen
State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai, P.R. China
Wei-Guo Xiao
Tianjin Dagu Chemical Co., Ltd., Tianjin, P.R. China
Lei Wang
State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai, P.R. China ; Tianjin Dagu Chemical Co., Ltd., Tianjin, P.R. China
Ji-Gang Zhao
State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai, P.R. China

Corresponding Author(s) : Ji-Gang Zhao

zjg@ecust.edu.cn

Asian Journal of Chemistry, Vol. 25 No. 16 (2013): Vol 25 Issue 16

Abstract

China's first pilot-scale hydrogen peroxide to propylene oxide (HPPO) plant has been built in Tianjin in March 2009. In the test duration, it produced qualified propylene oxide but its solvent recovery distillation consumed more energy. In order to improve the energy utilization level of plant, the solvent recovery process was simulated and its steam consumption was optimized by PRO/II with established thermodynamic model. According to the energy-saving optimization results, the actual steam consumption performed in the 1500 t/a plant could be reduced by 6.2 %.

Keywords

Propylene oxide Direct epoxidation Solvent recovery distillation Steam consumption Simulation Optimization
Li, Y.-C., Shen, B.-X., Xiao, W.-G., Wang, L., & Zhao, J.-G. (2013). Steam Consumption on Solvent Recovery Distillation of 1500t/a Propylene Oxide Pilot Plant: Simulation and Optimization. Asian Journal of Chemistry, 25(16), 8905–8908. https://doi.org/10.14233/ajchem.2013.14904
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