Skip to main content
SpringerLink
Log in

Determination of Heat Flows in Built-in Column Reflux Exchangers During Diabatic Rectification

  • RESEARCH, DESIGN, NUMERICAL ANALYSES, AND OPERATING EXPERIENCE
  • PROCESSES AND EQUIPMENT OF CHEMICAL AND OIL-AND-GAS TECHNOLOGIES
  • Published:
Chemical and Petroleum Engineering Aims and scope

During diabatic rectification, the internal flows of the mixture being separated change along the column height due to heat exchangers placed on plates through which the heat carrier circulates. The authors of the article propose a scheme for implementing diabatic rectification with integrated coil reflux exchangers in a poppet column and present a mathematical description of the process of heat removal from them during condensation of ascending vapors of ethyl alcohol–water mixture under separation on the coil pipes. The thermal power of the built-in reflux exchanger is determined by considering the influence of thermophysical properties and the location of the coils. An increase in the coolant’s temperature at the outlet of the coil deflector leads to a decrease in thermal power. All other conditions being equal, the largest amount of thermal power falls on the lower plates of the column. The values of the average heat transfer coefficient during condensation of liquid vapors increase with an increase in the coolant’s temperature (water) at the outlet of the reflux exchanger, however, the linear heat transfer coefficient decreases. To increase the thermal capacity of the reflux exchangers (and, consequently, the efficiency of separation of liquid mixtures) it is advisable to use various methods of intensifying heat exchange from the outside of the pipes.,

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1
Fig. 2

Similar content being viewed by others

References

  1. Z. Fonyo, “Thermodynamic analysis of rectification,” International Chemical Engineering, (Part I, “Reversible model of rectification,” 14, No. 1, 18–27 (1974); Part II, “Finite cascade models,” 14, No. 2, 203–210 (1974).

  2. G. Koeijer, A. Røsjorde, and S. Kjelstrup, “Distribution of heat exchange in optimum diabatic distillation columns,” Energy, 29, No. 12-15, 2425–2440 (2004).

    Article  Google Scholar 

  3. J. R. Alcántara-Avila, K.-I. Sotowa, and T. Horikawa, “Entropy production and economic analysis in diabatic distillation columns with heat exchangers in series,” Energy, 93, Part 2, 1719–1730 (2015).

  4. G. N. Mello, R. Battisti, N.S. Urruth, et al., “New distributed-action control strategy with simultaneous heating and cooling in trays of a pilot-scale diabatic distillation column,” Chemical Engineering Research and Design, 159, 424–438 (2020).

    Article  CAS  Google Scholar 

  5. G. Koeijer and R. Rivero, “Entropy production and exergy loss in experimental distillation columns,” Chemical Engineering Science, 58, No. 8, 1587–1597 (2003).

    Article  Google Scholar 

  6. I. N. Björn, U. Grén, and A. P. Soermardji, “Diabatic distillation − comments on the influence of side streams,” Computer Aided Chemical Engineering, 20, 511–516 (2005).

    Article  Google Scholar 

  7. N. A. Voinov, D. A. Zemtsov, A. V. Bogatkova, et al., “Intensification of heat exchange in diabatic rectification columns,” Khim. Rastiteln. Syriya, No. 4, 511–518 (2020).

  8. I. N. Björn, U. Grén, and F. Svensson, “Simulation and experimental study of intermediate heat exchange in a sieve tray distillation column,” Computers & Chemical Engineering, 26, No. 4-5, 499–505 (2002).

    Article  Google Scholar 

  9. T. R. Andersen, G. Siragusa, B. Andresen, et al., “Energy efficient distillation by optimal distribution of heating and cooling requirements,” European Symposium on Computer Aided Process Engineering, 10, 709-714 (2000).

    Google Scholar 

  10. I. N. Madyshev, O. S. Dmitrieva, A. O. Mayasova, and A. N. Nikolaev, “Increasing efficiency of contact devices of column masstransfer apparatuses when using thermal rectification processes,” Khim. Neftegaz. Mashinostr., No. 4, 3–6 (2022).

  11. K. F. Pavlov, P. G. Romankov, and А. А. Noskov, Examples and Tasks for the Course of Chemical Engineering Processes and Apparatuses [in Russian], Khimiya, Leningrad (1987), p. 560.

  12. G. M. Mikhailov, V. G. Mikhailov, L. A. Kondakova, and L. S. Reva, “Determination of the coefficient of convective heat transfer in a transient pipe flow at high Grashof numbers,” Theoretical Foundations of Chemical Engineering, 41, No. 4, 414–416 (2007).

    Article  CAS  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Kazan National Research Technological University, Kazan, Russia

    I. N. Madyshev, O. S. Dmitrieva, A. O. Mayasova & A. N. Nikolaev

Authors
  1. I. N. Madyshev
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. O. S. Dmitrieva
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. A. O. Mayasova
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. A. N. Nikolaev
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to I. N. Madyshev.

Additional information

Translated from Khimicheskoe i Neftegazovoe Mashinostroenie, Vol. 58, No. 7, pp. 3−6, July, 2022.

Rights and permissions

Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Madyshev, I.N., Dmitrieva, O.S., Mayasova, A.O. et al. Determination of Heat Flows in Built-in Column Reflux Exchangers During Diabatic Rectification. Chem Petrol Eng 58, 537–544 (2022). https://doi.org/10.1007/s10556-023-01126-3

Download citation

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10556-023-01126-3

Keywords

Search

Navigation