Механизм термолиза компонентов топлив для реактивных двигателей

УДК 543.876:665.743.3

DOI: 10.32758/2071-5951-2020-0-04-40-44

Thermolysis mechanism of fuel components for jet engines

Anisimov D.I., Juravleva V.D., Lihterova N.M.

(Federal Autonomous Enterprise «The 25-th State Research Institute of Himmotology, Ministry of Defence of Russian Federation», Moscow)

Keywords: propensity to form deposits, fuel injectors, aviation kerosene, thermal oxidation stability, thermolysis, oxidation mechanism, radical reactions.


The article presents literature data on mechanisms of temperature deposits formation in fuel systems of aviation gas turbine engines. Two main ways of formation of deposits are distinguished: liquid-phase auto oxidation at low temperatures (150-360 °С) (thermo-oxidative stability), and also gas or supercritical pyrolysis and cracking at high temperatures (> 400 °С) (thermolysis). The data on the effect of antioxidants and hydroperoxides formed during thermal oxidation on thermolysis are also presented. It is shown that these mechanisms do not reflect real operating conditions of some aircraft gas-turbine engine systems, such as fuel injectors, where dissolved oxygen is most likely mixed with thermolysis. In this connection, a scheme of deposit formation, including the stages of oxygen oxidation and thermolysis, has been proposed. Based on this scheme, a gross model of deposit formation will be developed for use in a mathematical model describing the functioning of fuel channels of aircraft gas turbine engines.


1. Kazakova, E. Structure-Thermal Stability Relationship During Pyrolysis of Pure Hydrocarbon // M.S. Thesis. – The Pennsylvania State University, 1998.

2. Hazlett, R.N. Free Radical Reactions Related to Fuel Research, in Frontiers of Free Radical Chemistry / R.N. Hazlett. – Pryor, W.A. d., Academic Press, New York, 1980. – P. 195–223.

3. Edwards, T. System Drivers for High Heat Sink Fuels. Preprints of Papers / T. Edwards // American Chemical Society Division of Petroleum Chemistry. – 2000. – V. 45(3). – P. 436–439.

4. Edwards, T. Liquid Fuels and Propellants for Aerospace Propulsion: 1903–2003 / T. Edwards // Journal of Propulsion and Power. – 2003. – V. 9(6). – P. 1089–1107.

5. Kuprowicz, N. J. A Predictive Modeling Approach to Simulate Liquid-Phase Oxidation and Deposition of Jet Fuels / Doctoral Dissertation. – University of Dayton, Dayton, OH, 2006.

6. Zarbanick, S. Chemical Kinetic Modeling of Jet Fuel Autoxidation and Antioxidant Chemistry / S. Zarbanick // Industrial Engineering and Chemistry Research. – 1993. – V. 115. –P. 1012–1017.

7. Edwards, T. USAF Supercritical Hydrocarbon Fuels Interests, AIAA 93-0807. in 31st Aerospace Sciences Meeting and Exhibit. 1993. Reno, NV.

8. Edwards, T. Recent Research Results in Advanced Fuels. Preprints of Papers / T. Edwards // American Chemical Society, Division of Petroleum Chemistry. – 1996. – V. 41(2). – P. 481–487.

9.Dagaut, P. Ethylene Pyrolysis and Oxidation – A Kinetic Modeling Study / P. Dagaut, J.C. Boettner, M. Cathonnet // International Journal of Chemical Kinetics. – 1990. – V. 22(6). – P. 641–664.

10. Zhang, H.Y. Elementary Reaction Modeling of High-Temperature Benzene Combustion / H.Y. Zhang, J.T. McKinnon // Combustion Science and Technology. – 1994. – V. 107(4–6). – P. 261–300.

11. Bittner, J.D. Composition Profiles and Reaction Mechanisms in a Near-Sooting Premixed Benzene/Oxygen/Argon Flame / J.D. Bittner, J.B. Howard // In Eighteenth Symposium (International) on Combustion. – The Combustion Institute, Pittsburgh, 1981.

12. Song, C. On the Mechanisms of PAH and Solid Formation During Thermal Degradation of Jet Fuels / C. Song, Y. Peng, H. Jiang, H.H. Schobert // Preprints of papers, American Chemical Society Division of Petroleum Chemistry. – 1992. – V. 37. – P. 484–492.

13. Edwards, T. The Relationship Between Oxidation and Pyrolysis in Fuels Heated to ~590 °C (1100 °F) / T. Edwards, P. Liberio // Preprints of Papers, American Chemical Society, Division of Petroleum Chemistry. – 1994. – V. 39(1). – P. 92–96.

14. Yoon, E.M. Exploratory Screening and Development of Potential Jet Fuel Thermal Stabilizers over 400 °C // Ph.D. Thesis. – The Pennsylvania State University, 1996.

15. Coleman, M.M. Hydrogen Donors as High Temperature (>400 °C) Stabilizers for Jet Fuels – A Dilemma / M.M. Coleman, M. Sobkowiak, S.P. Fearnley, C. Song // Preprints of Papers, American Chemical Society Division of Petroleum Chemistry. – 1998. – V. 43(3). – P. 353–356.