화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Korean Journal of Chemical Engineering, Vol.35, No.12, 2336-2347, December, 2018
DOI10.1007/s11814-018-0149-y  Export Citation
Design and control of extractive distillation for the separation of methyl acetate-methanol-water
Honghai Wang, Pengyu Ji, Huibin Cao, Weiyi Su, and Chunli Li†
  • National-Local Joint Engineering Laboratory for Energy Conservation of Chemical Process Integration and Resources, Utilization of Hebei University of Technology, Tianjin 300130, P. R. China
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The azeotrope of methyl acetate methanol and water was isolated using extractive distillation with water as entrainer. The pressure-swing extractive distillation (PSED) process and vapor side-stream distillation column (VSDC) with the rectifier process were designed to separate the methyl acetate, methanol and water mixture. It was revealed that the VSDC with the rectifier process had a reduction in energy consumption than the PSED process. Four control schemes of the two process were investigated: Double temperature control scheme (CS1), QR/F feedforward control of reboiler duty scheme for PESD (CS2), QR/F feedback control scheme for VSDC (CS3), the feedback control scheme of sensitive plate temperature of side-drawing distillation column to dominate the compressor shaft speed (CS4). Feed flow and composition disturbance were used to evaluate the dynamic performance. As a result, CS4 is a preferable choice for separation of methyl acetate-methanol-water mixture. A control scheme combining the operating parameters of dynamic equipment with the control indicators of static equipment was proposed in this paper. It means using the sensitive plate temperature of side-drawing column to control the compressor shaft speed. This is a new control scheme for extractive distillation.
Keywords:Extractive Distillation;Global Optimization;Energy Saving;Dynamic Control;Control Scheme
  1. Zheng HD, Xie LD, Cai LY, Wu D, Zhao SY, Chem. Eng. Process., 95, 214 (2015)
  2. Jie H, Cui X, Peng Y, Li X, Xu L, Lin R, Huagong Xuebao/CIESC J., 67, 606 (2016)
  3. Zhang ZG, Hu AR, Zhang T, Zhang QQ, Sun MY, Sun DZ, Li WX, Fluid Phase Equilib., 401, 1 (2015)
  4. Genduso G, Farrokhzad H, Latre Y, Darvishmanesh S, Luis P, Van der Bruggen B, J. Membr. Sci., 482, 128 (2015)
  5. Lux S, Winkler T, Forstinger M, Friesenbichler S, Siebenhofer M, Sep. Sci. Technol., 50(18), 2920 (2015)
  6. Aniya V, De D, Satyavathi B, Ind. Eng. Chem. Res., 55(25), 6982 (2016)
  7. Hosgor E, Kucuk T, Oksal IN, Kaymak DB, Comput. Chem. Eng., 67, 166 (2014)
  8. Gao X, Zhu B, Gu Q, Jiang Y, Yang D, Chin. J. Process. Eng., 17(2), 254 (2017)
  9. Chen X, Liu C, Geng Z, Chem. Eng. Process., 123, 233 (2017)
  10. Luyben WL, Chem. Eng. Process., 107, 29 (2016)
  11. Li Lumin, Tu Yangqin, Sun Lanyi, Hou Yafei, Zhu Minyan, Guo Lianjie, Li Qingsong, Tian Yuanyu, Ind. Eng. Chem. Res., 55(32), 8837 (2016)
  12. Zhang LH, Liu JB, Li XG, Li H, Jiang B, Xiao XM, Sep. Sci. Technol., 50(1), 148 (2015)
  13. Luyben WL, Chem. Eng. Res. Des., 106, 253 (2016)
  14. Navarro-Espinosa IR, Cardona CA, Lopez JA, Fluid Phase Equilib., 287(2), 141 (2010)
  15. Wang HH, Cui XY, Li CL, Fang J, Chem. Eng. Technol., 36(4), 627 (2013)
  16. Luyben WL, John Wiley & Sons, 292 (2013).
  17. Wang HH, Li Y, Su WY, Zhang YZ, Guo JJ, Li CL, Chem. Eng. Technol., 39(12), 2339 (2016)
  18. Xia M, Xin YP, Luo JW, Li WS, Shi L, Min Y, Xu CJ, Ind. Eng. Chem. Res., 52(50), 17996 (2013)
  19. Li WS, Shi L, Yu BR, Xia M, Luo JW, Shi HC, Xu CJ, Ind. Eng. Chem. Res., 52(23), 7836 (2013)
  20. Chang WL, Chien IL, Ind. Eng. Chem. Res., 55(43), 11291 (2016)
  21. Wang XH, Xie L, Tian P, Tian GZ, Chem. Eng. Process., 110, 172 (2016)