Modeling of Gasifiers: Overview of Current Developments

Recent developments in technology demonstrate that real progress in the field of mechanical/aerospace or chemical engineering can be achieved using numerical1) modeling. Basically, experiments are much more expensive than computations. Especially, taking into account possible risks or disasters during tests, simulations become more attractive. However, it should be emphasized that any model is useless unless it reproduces the values measured or their basic behavior during real processes. The basic advantages of modeling are as follows [1]:

[1]  H. M. Antia.  Numerical Methods for Scientists and Engineers , 2002 .

[2]  A. Ladd.  Numerical simulations of particulate suspensions via a discretized Boltzmann equation. Part 2. Numerical results , 1993, Journal of Fluid Mechanics.

[3]  S. Turns.  Introduction to Combustion , 1995, Aerothermodynamics and Jet Propulsion.

[4]  Yuxin Wu,et al.  Effects of Turbulent Mixing and Controlling Mechanisms in an Entrained Flow Coal Gasifier , 2010 .

[5]  A. N. Hayhurst.  Fundamentals of coal combustion for clean and efficient use : edited by L.D. Smoot; published by Elsevier, Amsterdam, New York, 1993; ISBN: 0-444-896430; price $297; 750 pp. + prelims. , 1994 .

[6]  J. Kuipers,et al.  Lattice-Boltzmann simulations of low-Reynolds-number flow past mono- and bidisperse arrays of spheres: results for the permeability and drag force , 2005, Journal of Fluid Mechanics.

[7]  P. Cundall,et al.  A discrete numerical model for granular assemblies , 1979 .

[8]  Marcio L. de Souza-Santos,et al.  Solid Fuels Combustion and Gasification: Modeling, Simulation, and Equipment Operations , 2004 .

[9]  M. Vascellari,et al.  Flamelet modeling of coal particle ignition , 2013 .

[10]  Caixia Chen,et al.  Numerical simulation of entrained flow coal gasifiers. Part I: modeling of coal gasification in an entrained flow gasifier , 2000 .

[11]  L. D. Smoot,et al.  MEASUREMENT AND PREDICTION OF ENTRAINED-FLOW GASIFICATION PROCESSES. , 1988 .

[12]  Madhava Syamlal,et al.  MFIX documentation numerical technique , 1998 .

[13]  A. M. Eaton,et al.  Components, formulations, solutions, evaluation, and application of comprehensive combustion models , 1999 .

[14]  C. Crowe,et al.  The Particle-Source-In Cell (PSI-CELL) Model for Gas-Droplet Flows , 1977 .

[15]  Philip J. Smith,et al.  Pulverized-coal combustion research at Brigham Young University , 1984 .

[16]  M. Baum,et al.  Predicting the Combustion Behaviour of Coal Particles , 1971 .

[17]  Thomas J. O'Brien,et al.  Computational Gas-Solids Flows and Reacting Systems: Theory, Methods and Practice , 2010 .

[18]  M. Vascellari,et al.  Influence of turbulence–chemical interaction on CFD pulverized coal MILD combustion modeling , 2012 .

[19]  K. Hanjalic,et al.  Application of computer simulation in a design study of a new concept of pulverized coal gasification. II: Model of coal reactions and discussion of results , 1994 .

[20]  L. Douglas Smoot,et al.  Coal Combustion and Gasification , 1985 .

[21]  J. Derksen.  Mixing by solid particles , 2008 .

[22]  Ahmed F. Ghoniem,et al.  Multiphysics Simulations of Entrained Flow Gasification. Part II: Constructing and Validating the Overall Model , 2012 .

[23]  H. H. Klein,et al.  Computer modeling of mixing and agglomeration in coal-conversion reactors. Volume I. Model formulation. Final report, September 15, 1978-February 28, 1982 , 1982 .

[24]  R. Hurt,et al.  Coal conversion submodels for design applications at elevated pressures. Part I. devolatilization and char oxidation , 2003 .

[25]  Sabodh K. Garg,et al.  Dynamics of gas‐fluidized beds , 1975 .

[26]  Mingchuan Zhang,et al.  A new flame sheet model to reflect the influence of the oxidation of CO on the combustion of a carbon particle , 2005 .

[27]  A. Martin,et al.  Combustion of Pulverised Coal , 1967 .

[28]  Masayuki Horio,et al.  On the scaling-up of a two-stage air blown entrained flow coal gasifier , 1999 .

[29]  D. Spalding.  Mixing and chemical reaction in steady confined turbulent flames , 1971 .

[30]  James W. Evans,et al.  Gas-solid reactions , 1976 .

[31]  Madhava Syamlal,et al.  Advanced coal gasifier designs using large-scale simulations , 2009 .

[32]  A. Silaen,et al.  Effect of turbulence and devolatilization models on coal gasification simulation in an entrained-flow gasifier , 2010 .

[33]  S. Schulze,et al.  From Detailed Description of Chemical Reacting Carbon Particles to Subgrid Models for CFD , 2013 .

[34]  S. Sundaresan,et al.  The role of meso-scale structures in rapid gas–solid flows , 2001, Journal of Fluid Mechanics.

[35]  I. W. Smith,et al.  The combustion rates of coal chars: A review , 1982 .

[36]  Jack B. Howard,et al.  Coal devolatilization and hydrogastification , 1976 .

[37]  S. Schulze,et al.  Numerical Simulation of Pulverized Coal MILD Combustion Using a New Heterogeneous Combustion Submodel , 2014 .

[38]  Olivier Desjardins,et al.  An Euler-Lagrange strategy for simulating particle-laden flows , 2013, J. Comput. Phys..

[39]  Ng Niels Deen,et al.  Review of discrete particle modeling of fluidized beds , 2007 .

[40]  Ahmed F. Ghoniem,et al.  Multiphysics Simulations of Entrained Flow Gasification. Part I: Validating the Nonreacting Flow Solver and the Particle Turbulent Dispersion Model , 2012 .

[41]  B. Magnussen.  On the structure of turbulence and a generalized eddy dissipation concept for chemical reaction in turbulent flow , 1981 .

[42]  W. Ranz.  Evaporation from drops : Part II , 1952 .

[43]  B. Hjertager,et al.  On mathematical modeling of turbulent combustion with special emphasis on soot formation and combustion , 1977 .

[44]  Y. Chyou,et al.  NUMERICAL ANALYSIS OF GASIFICATION PERFORMANCE VIA FINITE-RATE MODEL IN A CROSS-TYPE TWO-STAGE GASIFIER , 2013 .

[45]  A consistent flamelet formulation for a reacting char particle considering curvature effects , 2013 .

[46]  R. Glowinski,et al.  Fluidization of 1204 spheres: simulation and experiment , 2002, Journal of Fluid Mechanics.

[47]  S. Pannala,et al.  Open-source MFIX-DEM software for gas-solids flows: Part I – verification studies , 2012 .

[48]  J. Kuipers,et al.  Numerical study of segregation using a new drag force correlation for polydisperse systems derived from lattice-Boltzmann simulations , 2007 .

[49]  K. H. van Heek,et al.  Progress of coal science in the 20th century , 2000 .

[50]  Stephen Niksa,et al.  Coal conversion submodels for design applications at elevated pressures. Part II. Char gasification , 2004 .

[51]  M. Syamlal,et al.  MFIX documentation theory guide , 1993 .

[52]  P. J. O'rourke,et al.  Eulerian–Lagrangian method for three-dimensional thermal reacting flow with application to coal gasifiers , 2011 .

[53]  Tiziano Faravelli,et al.  A predictive multi-step kinetic model of coal devolatilization , 2010 .

[54]  M. SIJERCčICć,et al.  Application of Computer Simulation in a Design Study of a New Concept of Pulverized Coal Gasification , 1994 .

[55]  P. Moin,et al.  DIRECT NUMERICAL SIMULATION: A Tool in Turbulence Research , 1998 .

[56]  J. Kuipers,et al.  Drag force of intermediate Reynolds number flow past mono- and bidisperse arrays of spheres , 2007 .

[57]  Masayuki Horio,et al.  Use of numerical modeling in the design and scale-up of entrained flow coal gasifiers , 2001 .

[58]  Christian Hasse,et al.  Simulation of entrained flow gasification with advanced coal conversion submodels. Part 1: Pyrolysis , 2013 .

[59]  D. G. Roberts,et al.  CFD MODELLING FOR AN ENTRAINED FLOW GASIFICATION REACTOR USING MEASURED “ INTRINSIC ” KINETIC DATA , 2006 .

[60]  Christoph Hochenauer,et al.  Evaluation of a steady flamelet approach for use in oxy-fuel combustion , 2014 .

[61]  M. Vascellari,et al.  Simulation of entrained flow gasification with advanced coal conversion submodels. Part 2: Char conversion , 2014 .

[62]  P. Rosin.  The Laws Governing the Fineness of Powdered Coal , 1933 .

[63]  T. Fletcher,et al.  Chemical percolation model for devolatilization. 2. Temperature and heating rate effects on product yields , 1990 .

[64]  O. T. Stein,et al.  Towards Comprehensive Coal Combustion Modelling for LES , 2013 .

[65]  Sze Zheng Yong,et al.  Oxy-fuel combustion of pulverized coal: Characterization, fundamentals, stabilization and CFD modeling , 2012 .

[66]  Ahmed F. Ghoniem,et al.  Large eddy simulations of coal gasification in an entrained flow gasifier , 2013 .

[67]  Ting Wang,et al.  Investigation of radiation models in entrained-flow coal gasification simulation , 2013 .

[68]  Masayuki Horio,et al.  Numerical simulation of entrained flow coal gasifiers. Part II: effects of operating conditions on gasifier performance , 2000 .

[69]  D. G. Roberts,et al.  Gasification behaviour of Australian coals at high temperature and pressure , 2006 .

[70]  Gilles Flamant,et al.  DEM-LES of coal combustion in a bubbling fluidized bed. Part I: gas-particle turbulent flow structure , 2004 .

[71]  Ng Niels Deen,et al.  Direct numerical simulation of flow and heat transfer in dense fluid-particle systems , 2012 .

[72]  D. D. Perlmutter,et al.  A random pore model for fluid‐solid reactions: I. Isothermal, kinetic control , 1980 .

[73]  Xijia Lu,et al.  Water–gas shift modeling in coal gasification in an entrained-flow gasifier – Part 2: Gasification application , 2013 .

[74]  Gianluca Iaccarino,et al.  IMMERSED BOUNDARY METHODS , 2005 .

[75]  L. D. Smoot,et al.  Entrained flow gasification of coal: 1. Evaluation of mixing and reaction processes from local measurements , 1985 .

[76]  Normand M. Laurendeau,et al.  Heterogeneous Kinetics of Coal Char Gasification and Combustion , 1979 .

[77]  Kelly,et al.  Reactivity characterisation of Australian coals for use in advanced technologies , 2002 .

[78]  N. Peters.  Laminar diffusion flamelet models in non-premixed turbulent combustion , 1984 .

[79]  Shuai Zhang,et al.  Simulation of solid-fluid mixture flow using moving particle methods , 2009, J. Comput. Phys..

[80]  Ng Niels Deen,et al.  Numerical Simulation of Dense Gas-Solid Fluidized Beds: A Multiscale Modeling Strategy , 2008 .

[81]  Gilles Flamant,et al.  DEM-LES simulation of coal combustion in a bubbling fluidized bed Part II: coal combustion at the particle level , 2004 .