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Kinetic Analysis of the Chemical Structure of Waves of Filtration Combustion of Gases in Fuel-Rich Compositions

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Combustion, Explosion and Shock Waves Aims and scope

Abstract

The structure of heat release and the dynamics of formation of radicals and methane oxidation in a wave of filtration combustion of gases in fuel-rich methane–air compositions is studied with the use of skeleton diagrams and sensitivity analysis. Depending on heat release, the wave is divided into a preheating zone, an exothermic zone characterized by partial oxidation of methane in the reaction CH4 + 0.5O2 = CO + 2H2, and an endothermic zone with the conversion processes CO + H2O = CO2 + H2 and CH4 + H2O = CO + 3H2. It is shown that the composition of products in the wave front is essentially nonequilibrium. Several typical regions are also identified from the viewpoint of prevailing reactions of formation of the basic radicals in the wave. Thus, the dominating mechanism of chain branching is the reaction CH3 + O2 = CH3O + O in the “low-temperature” region, H2O2(+M) = 2OH(+M) and HO2 + CH3 = CH3O + OH in the “transitional” region, and H + O2 = O + OH in the “high-temperature” region. Two former regions correspond to the preheating zone and the latter region corresponds to the exothermic peak of the wave of filtration combustion of gases.

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REFERENCES

  1. V. S. Babkin, “Filtrational combustion of gases,” Pure Appl. Chem., 65, 335–344 (1993).

    Google Scholar 

  2. L. A. Kennedy, A. A. Fridman, and A. V. Saveliev, “Superadiabatic combustion in porous media: wave propagation, instabilities, new type of chemical reactor,” Int. J. Fluid Mech. Res., 2, 1–27 (1995).

    Google Scholar 

  3. M. K. Drayton, A. V. Saveliev, L. A. Kennedy, et al. “Superadiabatic partial oxidation of methane in reciprocal and counterow porous burners,” in: The 27th Symp. (Int.) on Combustion, The Combustion Inst., Pittsburgh (1998), pp. 1361–1367.

    Google Scholar 

  4. V. V. Gavrilyuk, Yu. M. Dmitrenko, S. A. Zhdanok, et al., “Investigation of methane conversion to hydrogen in the regime of a single filtration-combustion wave,” in: Proc. IV Int. Forum, Vol. 4, Minsk (2000), pp. 21–31.

    Google Scholar 

  5. P. F. Hsu and R. D. Matthews, “The necessity of using detailed kinetics in models for premixed combustion within porous media,” Combust. Flame, 93, 457–466 (1993).

    Google Scholar 

  6. J. R. Howell, M. J. Hall, and J. L. Ellzey, “Combustion of hydrocarbon fuels within porous inert media,” Prog. Ener. Combust. Sci., 22, 121–145 (1996).

    Google Scholar 

  7. L. A. Kennedy, J. P. Binque, M. K. Drayton, et al., “Chemical structures of filtration combustion waves in porous media,” in: Proc. 27th Int. Symp. on Combustion, Pittsburgh (1998), p. 403.

  8. M. R. Henneke and J. L. Ellzey, “Modeling offiltration combustion waves in porous media,” Combust. Flame, 117, 832–840 (1999).

    Google Scholar 

  9. L. A. Kennedy, J. P. Binque, A. V. Saveliev, et al., “Chemical structures of methane-airfiltration combustion waves for fuel-lean and fuel-rich conditions,” in: Proc. 28th Int. Symp. on Combustion, Pittsburgh (2000), p. 26.

  10. G. P. Smith, D. M. Golden, M. Frenklach, et al., “GRI-Mech 3.0,” in: http://www.me.berkeley.edu /gri_mech/.

  11. R. J. Kee, J. F. Grcar, M. D. Smooke, and J. A. Miller, “A Fortran chemical kinetics package for the analysis of gas-phase chemical kinetics,” Sandia Report No. SAND85-8240 UC-401 (1985).

  12. Yu. M. Laevskii and V. S. Babkin, “Filtration combustion of gases,” in: Propagation of Heat Waves in Heterogeneous Media [in Russian], Nauka, Novosibirsk (1988), pp. 118–120.

    Google Scholar 

  13. S. I. Futko, “Effect of kinetic properties of a mixture on wave macrocharacteristics of filtration combustion of gases,” Combust. Expl. Shock Waves, 39, No. 1, 11–22 (2003).

    Google Scholar 

  14. A. I. Rozlovskii, Fundamentals of Explosion Safety in Working with Combustible Gases and Vapors [in Russian], Khimiya, Moscow (1980), p. 207.

    Google Scholar 

  15. S. I. Futko, “Kinetic analysis of the chemical structure of filtration-combustion waves in fuel-lean mixtures,” Combust. Expl. Shock Waves, 39, No. 3, 261–269 (2003).

    Google Scholar 

  16. J. Warnatz, “Resolution of gas phase and surface combustion chemistry into elementary reactions,” in: 24th (Int.) Symp. on Combustion, Pittsburgh (1992), pp. 553579.

  17. S. I. Futko, A. V. Saveliev, L. A. Kennedy, and S. A. Zhdanok, “Reaction path analysis of the structure of rich methane-airfiltrational combustion wave,” in: Modern Problems of Combustion and Its Applications, Proc. 3rd Int. School-Seminar, Minsk (1999), pp. 31–35.

  18. A. L. Dicks, “Hydrogen generation from natural gas for the fuel cell systems of tomorrow,” J. Power Sources, 61, 113124 (1996).

    Google Scholar 

  19. N. Peters and F. A. Williams, “The asymptotic structure of stoichiometric methane</del>-air flames,”Combust. Flame, 68, 185207 (1987).

    Google Scholar 

  20. K. Seshadri, X. S. Bai, H. Pitsch, and N. Peters, “Asymptotic analysis of the structure of moderately rich methane-air flames,” Combust. Flame, 113, 589602 (1998).

    Google Scholar 

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  1. Belarus National Academy of Sciences, Institute of Heat and Mass Transfer, Minsk, 220072

    S. I. Futko

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Futko, S.I. Kinetic Analysis of the Chemical Structure of Waves of Filtration Combustion of Gases in Fuel-Rich Compositions. Combustion, Explosion, and Shock Waves 39, 437–447 (2003). https://doi.org/10.1023/A:1024786805591

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