Preview

Fine Chemical Technologies

Advanced search

Estimation of separation quality and costs of heat in rectification processes

Full Text:

Abstract

Different criteria for the quantification of the quality of binary mixtures separation by rectification were compared. The best criterion for the binary mixtures was selected. The unit energy costs in the case of rectification of binary mixtures with different separabilities and the compositions of the initial mixture were found. It is shown that due to the internal energy saving in the processes of rectification the average separability of mixtures (40 to 60%) the unit cost of heat in the reboiler is close to the latent heat of vaporization of the mixtures. In this case the purity of shared components is 98%.

About the Authors

M. K. Zakharov
M.V. Lomonosov Moscow State University of Fine Chemical Technologies, 86, Vernadskogo pr., Moscow 119571
Russian Federation


Mohand Abbasy
M.V. Lomonosov Moscow State University of Fine Chemical Technologies, 86, Vernadskogo pr., Moscow 119571
Russian Federation


E. N. Zvereva
M.V. Lomonosov Moscow State University of Fine Chemical Technologies, 86, Vernadskogo pr., Moscow 119571
Russian Federation


References

1. Halvorsen I.J., Skogestad S. Energy efficient distillation // J. Nat. Gas Sci. & Eng. 2011. V. 3(4). P. 571–580.

2. Lucia A., McCallum B.R. Energy targeting and minimum energy distillation column sequences // Comp. & Chem. Eng. 2010. V. 34. P. 931–942.

3. Серафимов Л.А., Хахин Л.А., Мавлеткулова П.О. Сравнительный анализ универсальных критериев оптимизации процесса ректификации // Теор. основы хим. технологии. 2011. Т. 45. № 6. С. 634–640.

4. Айнштейн В.Г., Захаров М.К., Носов Г.А., Захаренко В.В., Зиновкина Т.В., Таран А.Л., Костанян А.Е. Общий курс процессов и аппаратов химической технологии: в 2-х кн. / Под ред. В.Г. Айнштейна. М.: Университетская книга, Логос, Физматкнига, 2006. Кн. 1. 912 с. Кн. 2. 872 с.

5. Kohei Ogawa. Chemical Engineering: A New Perspective. – Netherlands: Elsevier, 2007. Р. 81–94.

6. Петлюк Ф.Б., Серафимов Л.А. Многокомпонентная ректификация. Теория и расчет. М.: Химия, 1983. 304 с.

7. Захаров М.К. Энергозатраты и энергосбережение при разделении жидких смесей методом перегонки // Вестник МИТХТ. 2009. Т. 4. № 1. С. 60–63.

8. Захаров М.К., Довбиш А.А. Энергозатраты и энергосбережение при ректификации бинарных и трехкомпонентных смесей // Вестник МИТХТ. 2010. Т. 5. № 6. С. 9–12.


For citation:


Zakharov M.K., Abbasy M., Zvereva E.N. Estimation of separation quality and costs of heat in rectification processes. Fine Chemical Technologies. 2013;8(2):34-38. (In Russ.)

Views: 46


ISSN 2410-6593 (Print)
ISSN 2686-7575 (Online)