Study on mass transfer and heat transfer in transition zone of short-path distillation separation equipment based on N-dodecanol and N-hexadecanol

Zhenya Duan; Haodong Zhang; Bin Liu; Zhiwei Sun; Junmei Zhang; Longlong Lin

Korean Journal of Chemical Engineering, Vol.39, No.2, 306-315, February, 2022

DOI10.1007/s11814-021-0908-z Export Citation

Study on mass transfer and heat transfer in transition zone of short-path distillation separation equipment based on N-dodecanol and N-hexadecanol

Zhenya Duan, Haodong Zhang, Bin Liu, Zhiwei Sun, Junmei Zhang^{1, †}, and Longlong Lin²

College of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao 266061, China
¹College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
²Shandong Xinhua Pharmaceutical Company Limited, Zibo 255000, Shandong Province, China

E-mail:

Based on the fact that the distance between the heat exchange surfaces has little influence on the separation efficiency in the short-path distillation, a hypothesis that the heat and mass transfer process in the transition region is controlled by heat convection is proposed; the gas-liquid state in the transition zone was calculated by numerical simulation experiment. The results show that the gas-liquid volume fraction and temperature fluctuation in the evaporation and condensation process is unstable, while the gas-liquid volume fraction and temperature fluctuation in the transition zone is stable in the short-path distillation process. It can be concluded that in unsteady thermodynamics, the transition zone is a stable convective heat transfer process that is not affected by the distance between heat transfer surfaces. Thus, under ideal conditions, the continuous extension of the transition region has little effect on the distillation efficiency.

Keywords:Short-path Distillation;Fluent;Molecular Dynamic Simulation;Transition Region;Evaporation and Condensation

[References]

Fu J, Han X, Hu J, Xiong W, Wu L, The Food Ind., 41(09), 186 (2020)
Zhao G, Zhao Y, Lu L, Hou Z, Special Wild Economic Animal and Plant Research, 42(03), 53 (2020).
Xu T, Han W, Mech. Electr. Inform., 3(08), 1 (2015)
Dong H, Wang R, Chem. Design Commun., 45(03), 55 (2019)
Sun X, Technol. Dev. Chem. Ind., 47(12), 35 (2018)
Zhu G, Petrolem Prod Appucation Res., 36(05), 76 (2018)
Tao Y, Li C, Wu W, Gao Y, Sci. Technol. Food Ind., 33(03), 429 (2012)
Li Y, Liu J, Cereals Oils, 1(03), 7 (2011)
Kawala Z, Stephan K, Chem. Eng. Technol., 12(1), 406 (1989)
Ren Y, Tianjin Univ (2006).
Guo J, Su S, Li H, Han S, Qian D, Mod. Chinese Med., 15(01), 9 (2013)
Li H, Li Y, Hu C, Han J, Res. Explor. Lab., 31(07), 54 (2012)
Persad AH, Ward CA, Chem. Rev., 116(14), 7727 (2016)
Henry DJ, Dewan VI, Prime EL, Qiao GG, Solomon DH, Yarovsky I, J. Phys. Chem. B, 114(11), 3869 (2010)
Liang Z, Keblinski P, The J. Chem. Phys., 148(6), 064708 (2018)
Liang Z, Biben T, Keblinski P, Int. J. Heat Mass Transf., 114, 105 (2017)
Liang Z, Chandra A, Brid E, Keblinski P, Int. J. Heat Mass Transf., 149, 119 (2020)
Wang Z, Tsinghua Univ (2002).
Gu Y, Ge S, Chen M, Mol. Phys., 114(12), 1922 (2016)
Ge S, Gu Y, Chen M, Mol. Phys., 113(7), 703 (2015)
Kumar R, Lee YK, Jho YS, Int. J. Mol. Sci., 31(13), 4602 (2020)
Roel-Touris J, Bonvin AMJJ, Comput. Struct. Biotec., 18, 1182 (2020)
Beu TA, Ailenei AE, Costinas RI, J. Comput. Chem., 41(4), 349 (2020)
Shivgan AT, Marzinek JK, Huber RG, J. Chem. Inf. Model, 60, 3864 (2020)
Tang Y, Zhang X, Lin Y, Xue J, He Y, Ma L, Adv. Theor. Simul., 2(8), 190006 (2019)
Qun C, Wei S, Zheng C, Int. J. Heat Mass Transf., 153, 119616 (2020)
Wang P, China Univ Petroleum (East China) (2013).
Xing H, J. Wuhan Inst. Chem. Technol., 27(01), 72 (2005)

[1] Fu J, Han X, Hu J, Xiong W, Wu L, The Food Ind., 41(09), 186 (2020)

[2] Zhao G, Zhao Y, Lu L, Hou Z, Special Wild Economic Animal and Plant Research, 42(03), 53 (2020).

[3] Xu T, Han W, Mech. Electr. Inform., 3(08), 1 (2015)

[4] Dong H, Wang R, Chem. Design Commun., 45(03), 55 (2019)

[5] Sun X, Technol. Dev. Chem. Ind., 47(12), 35 (2018)

[6] Zhu G, Petrolem Prod Appucation Res., 36(05), 76 (2018)

[7] Tao Y, Li C, Wu W, Gao Y, Sci. Technol. Food Ind., 33(03), 429 (2012)

[8] Li Y, Liu J, Cereals Oils, 1(03), 7 (2011)

[9] Kawala Z, Stephan K, Chem. Eng. Technol., 12(1), 406 (1989)

[10] Ren Y, Tianjin Univ (2006).

[11] Guo J, Su S, Li H, Han S, Qian D, Mod. Chinese Med., 15(01), 9 (2013)

[12] Li H, Li Y, Hu C, Han J, Res. Explor. Lab., 31(07), 54 (2012)

[13] Persad AH, Ward CA, Chem. Rev., 116(14), 7727 (2016)

[14] Henry DJ, Dewan VI, Prime EL, Qiao GG, Solomon DH, Yarovsky I, J. Phys. Chem. B, 114(11), 3869 (2010)

[15] Liang Z, Keblinski P, The J. Chem. Phys., 148(6), 064708 (2018)

[16] Liang Z, Biben T, Keblinski P, Int. J. Heat Mass Transf., 114, 105 (2017)

[17] Liang Z, Chandra A, Brid E, Keblinski P, Int. J. Heat Mass Transf., 149, 119 (2020)

[18] Wang Z, Tsinghua Univ (2002).

[19] Gu Y, Ge S, Chen M, Mol. Phys., 114(12), 1922 (2016)

[20] Ge S, Gu Y, Chen M, Mol. Phys., 113(7), 703 (2015)

[21] Kumar R, Lee YK, Jho YS, Int. J. Mol. Sci., 31(13), 4602 (2020)

[22] Roel-Touris J, Bonvin AMJJ, Comput. Struct. Biotec., 18, 1182 (2020)

[23] Beu TA, Ailenei AE, Costinas RI, J. Comput. Chem., 41(4), 349 (2020)

[24] Shivgan AT, Marzinek JK, Huber RG, J. Chem. Inf. Model, 60, 3864 (2020)

[25] Tang Y, Zhang X, Lin Y, Xue J, He Y, Ma L, Adv. Theor. Simul., 2(8), 190006 (2019)

[26] Qun C, Wei S, Zheng C, Int. J. Heat Mass Transf., 153, 119616 (2020)

[27] Wang P, China Univ Petroleum (East China) (2013).

[28] Xing H, J. Wuhan Inst. Chem. Technol., 27(01), 72 (2005)