Comparison of a discrete coal gasification global model in an entrained flow gasifier with the GRI-Mech 1.2 mechanism

• Autorzy: Mularski J. , Modliński N. , Pawlak-Kruczek H.
• Języki publikacji: EN

Abstrakty

EN

In this study a two-dimensional model of the coal gasification process in an entrained flow gasifier is investigated with a CFD software. Euler approach is used to simulated gas phase while the Lagrangian one is used to describe the solid phase. The current paper is focused on the importance of the gas phase simulation on the gasification model performance. Eddy dissipation concept is applied to simulate homogenous phase reactions a turbulence-chemistry interaction. Other available models have also been mentioned. Global reaction mechanism have been used initially. Consecutively the detailed GRI-Mech 1.2 Mechanism was implemented. GRI-Mech 1.2 Mechanism used in this study includes 176 homogenous embedded reactions and additional 3 heterogeneous reactions. The results of calculations obtained with both mechanisms exhibit good compatibility.

Słowa kluczowe

EN

air gasification; coal; entrained flow gasifier; GRI-Mech; Euler-Lagrange approach

• Wydawca: Komitet Termodynamiki i Spalania PAN
• Czasopismo: Archivum Combustionis
• Rocznik: 2017
• Tom: Vol. 37 nr 2
• Strony: 139--154
• Opis fizyczny: Bibliogr. 16 poz., rys., tab.

Twórcy

autor

Mularski J.

• Wrocław University of Technology Wybrzeże Wyspiańskiego 27, Wrocław 50-370, Poland, tel.: [phone]

autor

Modliński N.

• Wrocław University of Technology Wybrzeże Wyspiańskiego 27, Wrocław 50-370, Poland, tel.: [phone]

autor

Pawlak-Kruczek H.

• Wrocław University of Technology Wybrzeże Wyspiańskiego 27, Wrocław 50-370, Poland, tel.: [phone]

Bibliografia

• [1] Held J, Gasification - status and technology, Raport SGC 240, 2012, p.1-48
• [2] Goshayeshi B, Sutherland C. J., A comparison of various models in predicting ignition delay in single particle coal combustion, Combustion and flame, 2014, p. 1-11
• [3] Silaen A., Wang T. Effect of turbulence and devolatilization models on coal gasification simulation in an entrained flow gasifier, International Journal of Heat and Mass Transfer 53, 2010, p. 2074-2091
• [4] World Nuclear association, http://www.world-nuclear.org/information-library/energy-and-the-environment/clean-coal-technologies.aspx, 2017
• [5] Global CCS Institute, Power Plant Efficiency, https://hub.globalccsinstitute.com/publications/capturing-co2/power-plant-efficiency
• [6] National Energy Technology Laboratory, Gasification Introduction, https://www.netl.doe.gov/research/coal/energy-systems/gasification/gasifipedia/syngas-composition
• [7] Prof. Marek Ściążko, http://home.agh.edu.pl/~lstepien/Gasification/Lectures/L2-2.pdf
• [8] Bell D., Towler B., Fan M., Coal gasification and Its applications, 2010
• [9] Kim S. D., Characteristics of an entrained flow coal gasification in a drop tube reactor, Fuel,1996, p.1034-1042
• [10] Tremel A., Haselsteiner T., Nakonz M., Spliethoff H., Coal and char properties in high temperature entrained flow gasification, Energy, 2012, p. 176-182
• [11] Haugen N., Mitchell R., Tilghman M., A comprehensive model for char particle conversion in environments containing CO2 and O2, Combustion and Flame, 2015, p.1455-1463
• [12] Lin S., Ding L., Zhou Z., Yu G, Discrete model for simulation of char particle gasification with structure evolution, Fuel, 2016, p. 656-664 [13] Spalding D. B., Mixing and chemical reaction in steady confined turbulent flames. W: 13th Symp (Int'l.) on Combustion. The Combustion Institute, 1971, p. 649-657
• [14] Parente A, Malik M., Contino F., Cuoci A., Bassam B., Extension of the Eddy Dissipation Concept for turbulence/chemistry interactions to MILD combustion, Fuel, 2016, p. 98-111
• [15] Khan J., Wang T., Implementation of a Demoisturization and devolatilization model fluidized, International Journal of Clean coal and energy, 2013, p. 35-53
• [16] Gregory P. Smith, David M. Golden, Michael Frenklach, Nigel W. Moriarty, Boris Eiteneer, Mikhail Goldenberg, C. Thomas Bowman, Ronald K. Hanson, Soonho Song, William C. Gardiner, Jr., Vitali V. Lissianski, and Zhiwei Qin http://www.me.berkeley.edu/gri_mech/