A two-dimensional system of parabolic and hyperbolic equations has been constructed describing the aerodynamics, heat and mass transfer, and chemical reaction of a gas-dispersion medium in a fixed bed. An investigation has been made into the effects of particle motion velocity and H2O content in a vapor–air mixture on the temperature and concentration phase fields, unburned carbon loss, grate slagging, steadiness (stabilization) and stationarity of the gasification process, and the calorific value of synthetic gas. An original method has been proposed for the supply of coal dust into the burners using generator (producer) gas as a working medium ejecting fi ne dust.
Similar content being viewed by others
References
M. Tiilikka and M. Bolhàr-Nordenkampf, Advanced gasifi cation technologies for large scale energy production, Power- Gen Europe Conference, Vol. 1 (2014), pp. 1–16.
V. G. Zdanovskii, Modernization of Boiler Units at Thermal Electric Power Stations [in Russian], Tekhnika, Kiev (1990).
B. V. Kantorovich, Introduction to the Theory of Combustion and Gasifi cation of Solid Fuel [in Russian], Metallurgizdat, Moscow (1961).
V. V. Pomerantsev, K. I. Aref′ev, D. B. Akhmedov, et al., Foundations of Practical Theory of Combustion [in Russian], Énergoatomizdat, Leningrad (1986).
B. B. Rokhman, Nonstationary steam–oxygen gasifi cation of solid fuel in a fi xed bed under pressure, J. Eng. Phys. Thermophys., 93, No. 3, 664–676 (2020).
A. N. Nagornov, Investigation and Development of the Technology of Gasifi cation of Low-Ash Coals in a Dense Bed under Pressure in Steam-and-Air Blow, Extended Abstract of Doctor′s Dissertation in Technical Sciences, Barnaul (2010).
M. V. Alekseev, A. R. Bogomolov, N. A. Pribaturin, S. A. Shevyrev, A. L. Sorokin, and E. I. Kagakin, Modeling a layered counter-current gasifi er for the conversion of coal sludge of the "Berezovskaya" concentrating mill in a superheated steam fl ow, Vestn. Kuzbas. Gos. Tekh. Univ., No. 1, 79–84 (2013).
D. R. Taimasov, E. E. Permyakov, Ulziisaikhan Khudréé, and P. K. Senachin, Coal gasifi cation in a dense bed of a reverse process generator, Polzunov Almanac, 1, No. 3, 24–27 (2017).
N. S. Marishin, D. R. Taimasov, E. E. Permyakov, and P. K. Senachin, Modeling coal gasifi cation in a dense energy, Proc. Conf. Energy and Resource Effi ciency of Low-Rise Residential Buildings, March 21–23, 2017, Novosibirsk (2017), pp. 338–342.
C. K. Westbrook and F. L. Dryer, Simplifi ed reaction mechanisms for the oxidation of hydrocarbon fuels in fl ames, Combust. Sci. Technol., 27, 31–43 (1981).
F. Bustanmante, R. M. Enick, R. P. Killmeyer, B. H. Howard, K. S. Rothenberger, A. V. Cugini, B. D. Morreale, and M. V. Ciocco, Uncatalyzed and wall-catalyzed forward water-gas shift reaction kinetics, AIChE J., 51, 1440–1454 (2005).
J. Ma and S. E. Zitney, CFD modeling of entrained-fl ow gasifi ers with improved physical and chemical submodels, Energy Fuels, 26, 7195–7219 (2012).
A. Gómes-Barea and B. Leckner, Modeling of biomass gasifi cation in fl uidized bed, Prog. Energy Combust. Sci., 36, 449–509 (2010).
C. Y. Wen and T. Z. Chaung, Entrainment coal gasifi cation modeling, Ind. Eng. Chem. Process Des. Dev., 18, No. 4, 684–695 (1979).
M. É. Aérov, O. M. Todes, and D. A. Narinskii, Stationary Granular-Bed Apparatus [in Russian], Khimiya, Leningrad (1979).
S. D. Fedoseev and A. B. Chernyshev, Semicoking and Gasifi cation of Solid Fuel [in Russian], Gos. Nauch.-Tekh. Izd. Neftyanoi i Gorno-Toplivnoi Literatury, Moscow (1960).
Author information
Authors and Affiliations
Corresponding author
Additional information
Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 94, No. 5, pp. 1320–1334, September–October, 2021.
Rights and permissions
About this article
Cite this article
Rokhman, B.B. Numerical Investigation of the Process of Peat Gasification in an Oxygen-Enriched Vapor–Air Mixture in a Fixed Bed under a Pressure of 1.5 MPa. J Eng Phys Thermophy 94, 1290–1303 (2021). https://doi.org/10.1007/s10891-021-02409-3
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10891-021-02409-3