Application of the Adsorption Method for Purifying the Working Fluid in the Combined Cycle Plant Heat Recovery Loop

Authors

  • Вера [Vera] Владимировна [V.] Понуровская [Ponurovskaya]
  • Кирилл [Kirill] Игоревич [I.] Кузнецов [Kuznetsov]
  • Евгений [Evgeniy] Вячеславович [V.] Ежов [Ezhov]

DOI:

https://doi.org/10.24160/1993-6982-2025-3-56-62

Keywords:

adsorption, CCP, heat recovery loop, carbon sorbent, sorption capacity, ORC

Abstract

The process cycle circuit of a combined-cycle power plant (CCP) with a working fluid based on fluorocarbons (C3F8) circulating in the heat recovery loop, which operates according to the organic Rankine cycle (ORC) is considered. The basic process cycle circuit and the layout diagram of the CCP with a fully sealed steam turbine casing and electrical generator are presented. The article also presents the schematic design of a unit for continuously purifying the working fluid from process impurities, elaborated on the basis of experimental data on the octafluoropropane (C3F8) sorption and desorption processes. An experimental setup for studying the sorption and desorption of fluorinated compounds is described along with the methodology for making experimental measurements. The effectiveness of octafluoropropane sorption on modified activated charcoal has been demonstrated. The mass sorption capacities of some fluorocarbon-based working substances on a modified carbon sorbent have been calculated.

Author Biographies

Вера [Vera] Владимировна [V.] Понуровская [Ponurovskaya]

Assistant of Theoretical Bases of Heat Engineering Named after Mikhail Vukalovich Dept., NRU MPEI, e-mail: PonurovskyaVV@mpei.ru

Кирилл [Kirill] Игоревич [I.] Кузнецов [Kuznetsov]

Ph.D. (Techn.), Assistant Professor of Theoretical Bases of Heat Engineering Named after Mikhail Vukalovich Dept., NRU MPEI, e-mail: KuznetsovKI@mpei.ru

Евгений [Evgeniy] Вячеславович [V.] Ежов [Ezhov]

Ph.D. (Techn.), Assistant Professor of Theoretical Bases of Heat Engineering Named after Mikhail Vukalovich Dept., NRU MPEI, e-mail: YezhovYevV@mpei.ru

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Для цитирования: Понуровская В.В., Кузнецов К.И., Ежов Е.В. Применение метода адсорбционной очистки рабочего тела в утилизационном контуре парогазовой установки // Вестник МЭИ. 2025. № 3. С. 56—62. DOI: 10.24160/1993-6982-2025-3-56-62
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Конфликт интересов: авторы заявляют об отсутствии конфликта интересов
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3. Javanshir A., Sarunac N. Thermodynamic Analysis of a Simple Organic Rankine Cycle. Energy. 2017;118:85—96.
4. Shubenko O.L., Senetskyi O.V., Babak M.Yu., Sarapin V.P. Organic Rankine Cycle in the Boiler-room with Partial Use of Heat of Hot Water and Flue Gases. Znanstvena Misel J. 2018;1(22):58—64.
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7. Pat. US8904791B2. Rankine Cycle Integrated with Organic Rankine Cycle and Absorption Chiller Cycle / Lehar M.A. e. a.
8. Dubinin M.M. Fundamentals of the Theory of Adsorption in Carbon Adsorbents: Characteristics of Their Adsorption Properties and Microporous Structures. Carbon. 1989;27:457—467.
9. Xue T., Cooper W.C., Pascual R. Effect of Fluoride Ions on the Corrosion of Aluminium in Sulphuric Acid and Zinc Electrolyte. J. Appl. Electrochem. 1991;21:238—246.
10. Kotel'nikova T.A. Adsorbtsionnye, Ionoobmennye i Bakteriostaticheskie Svoystva Kremnezemov, Modifitsirovannykh Kationami Alyuminiya i Serebra. Sorbtsionnye I Khromatograficheskie Protsessy. 2018;18;2:257—264. (in Russian).
11. Men’shchikov I. e. a. Carbon Adsorbents for Methane Storage: Genesis, Synthesis, Porosity, Adsorption. Korean J. Chem. Eng. 2021;38:276—291.
12. Shkolin A.V. e. a. Monolithic Microporous Carbon Absorbent for Lou Temperature Natural Gas Storage. Adsorption. 2019;25(3):1559—1573.
13. Torres-Knoop A. e. a. Behavior of the Enthalpy of Adsorption in Nanoporous Materials Close to Saturation Conditions. J. Chem. Theor. Comput. 2017;13(7):3326—3339.
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For citation: Ponurovskaya V.V., Kuznetsov K.I., Ezhov E.V. Application of the Adsorption Method for Purifying the Working Fluid in the Combined Cycle Plant Heat Recovery Loop. Bulletin of MPEI. 2025;3:56—62. (in Russian). DOI: 10.24160/1993-6982-2025-3-56-62
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Conflict of interests: the authors declare no conflict of interest

Published

2025-02-27

Issue

Section

Energy Systems and Complexes (2.4.5)