Numerical study of <i>n</i>-heptane/benzene separation by thermal diffusion column

Neda Hashemipour; Javad Karimi-Sabet; Kazem Motahari; Saeed Mahruz Monfared; Younes Amini; Mohammad Ali Moosavian

doi:10.1016/j.cjche.2018.10.004

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Numerical study of n-heptane/benzene separation by thermal diffusion column

Fluid Dynamics and Transport Phenomena | Updated：2026-01-06

- Numerical study of n-heptane/benzene separation by thermal diffusion column
- Chinese Journal of Chemical Engineering Vol. 27, Issue 8, Pages: 1745-1755(2019)
- Affiliations：
  
  1. Department of Chemical Engineering, Faculty of Engineering, Arak University, Arak,Iran
  2. Material and Nuclear Fuel Research School(MNFRS), Nuclear Science and Technology Research Institute, Tehran,Iran
  3. Department of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran,Iran
  4. Department of Chemical Engineering, Isfahan University of Technology, Isfahan,Iran
  5. School of Chemical Engineering, Faculty of Engineering, University of Tehran, Tehran,Iran
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2018.10.004
  CLC：
- Published：2019
- Accepted：
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-heptane/benzene separation by thermal diffusion column[J]. 中国化学工程学报, 2019, 27(8): 1745-1755.
DOI：

-heptane/benzene separation by thermal diffusion column[J]. 中国化学工程学报, 2019, 27(8): 1745-1755. DOI： 10.1016/j.cjche.2018.10.004.

摘要

Abstract

In this article

numerical simulations are performed to investigate the performance of the thermal diffusion column for the separation of

-heptane/benzene mixture. The present work tried to optimize column by analyzing significant parameters such as feed flow rate

temperature and cut. In order to obtain the hydrodynamic and temperature and mass distribution inside thermal diffusion column

computational fluid dynamic (CFD) method is applied to solve the Navier-Stocks equations. Numerical simulations are conducted to study the main parameters in both stationary and time-dependent conditions. By using the separation work unit as a function of cut

the optimal cut for maximum SWU occurs within a limited range of 0.47-0.5 for feed rate between 0.5 and 4·g min

-1

. Our findings reveal that the optimum feed rate in the range of optimum cut is about 1 g min

-1

. In transient study

results show that the best cut for reaching to steady-state condition is

=0.5.

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Numerical study of n-heptane/benzene separation by thermal diffusion column

DOI：10.1016/j.cjche.2018.10.004

摘要

Abstract

关键词

Keywords

references