Numerical and Experimental Studies on Devolatilizaton Behavior of Pulverized Coal in a Drop Tube Furnace

Jihoon Jang; Karam Han; Geun Sil Yu; Wook Ryun Lee; HyeonSoo Lim; Ho Young Park

doi:10.15231/jksc.2019.24.2.034

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2019 Vol.24, Issue 2 Preview Page Next Page

Research Article

Numerical and Experimental Studies on Devolatilizaton Behavior of Pulverized Coal in a Drop Tube Furnace DTF내 미분탄의 탈휘발 거동 해석 및 실험

30 June 2019. pp. 34-40

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Abstract

Devolatilization behavior of pulverized coal in a drop tube furnace (DTF) has been calculated with the measured gas temperature and velocity. The particle temperature and velocity were calculated from the energy and momentum equations of particle by using the fourth order Runge-Kutta method. The volatile evolved from the particle along with the reactor tube was also calculated varying the wall temperature of reaction tube as well as the particle diameter. The optimal kinetic parameters of subbituminous coal were obtained from the volatile evolution data of the devolatilization experiment in the DTF by error minimization.

Keywords

Devolatilization

DTF

Pulverized coal

Volatile

Kinetic parameter

References

S. Badzioch, G.W. Hawksley, Kinetics of Thermal Decomposition of Pulverised Coal Particles, Ind. Eng. Chem. Proc. DD, 9 (1970) 521-525.

10.1021/i260036a005

H. Kobayashi, J.B. Howard, A.F. Sarofim, Coal Devolatilization at High Temperatures, Symposium (International) on Combustion, 16, 1976, 411-425.

10.1016/S0082-0784(77)80341-X

E.M. Suuberg, W.A. Peters, J.B. Howard, Product Compositions and Formation Kinetics in Rapid Pyrolysis of Pulverised Coal Implications for Combustion, Symposium (International) on Combustion, 17, 1979, 117-122.

10.1016/S0082-0784(79)80015-6

A.W. Scaroni, Jr.P.L. Walker, R.H. Essenhigh, Kinetics of Lignite Pyrolysis in an Entrained-Flow, Isothermal Furnace, Fuel, 60 (1981) 71-76.

10.1016/0016-2361(81)90035-1

K.R. Doolan, J.C. Mackie, Kinetics of Rapid Pyrolysis of a Calcium-Exchanged Brown Coal and of a Calcium Model Compound, Symposium (International) on Combustion, 20, 1985, 1462-1467.

10.1016/S0082-0784(85)80639-1

M.A. Serio, D.G. Hamblen, J.R. Markham, P.R. Solomon, Kinetics of Volatile Product Evolution in Coal Pyrolysis: Experiment and Theory, Energy Fuels, 1 (1987) 138-148.

10.1021/ef00002a002

G.R. Johnson, P. Murdoch, A. Williams, A Study of the Mechanism of the Rapid Pyrolysis of Single Particles of Coal, Fuel, 67 (1988) 834-840.

10.1016/0016-2361(88)90159-7

T.H. Fletcher, Time-Resolved Temperature Measuremens of Individual Coal Particles during Devolateilization, Combust. Sci. Tech., 63 (1989) 89-105.

10.1080/00102208908947120

T.H. Fletcher, Time-Resolved Particle Temperature and Mass Loss Measurements of Bituminous Coal during Devolatilization, Combust. Flame, 26 (1989) 223-236.

10.1016/0010-2180(89)90127-2

P.R. Solomon, M.A. Serio, E.M. Suuberg, Coal Pyrolysis: Experiments, Kinetic Rates and Mechanisms, Prog. Energy Combust. Sci., 18 (1992) 133-140.

10.1016/0360-1285(92)90021-R

RJ. Flaxman, W.L.H. Hallett, Flow and Particle Heating in an Entrained Flow Reactor, Fuel, 66 (1987) 607-611.

10.1016/0016-2361(87)90266-3

D. Merrick, Mathematical Models of the Thermal Decomposition of Coal 1. Evolution of Volatile Matter, Fuel, 62 (1983) 535-541.

10.1016/0016-2361(83)90222-3

Information

Publisher :The Korean Society Combustion
Publisher(Ko) :한국연소학회
Journal Title :Journal of The Korean Society Combustion
Journal Title(Ko) :한국연소학회지
Volume : 24
No :2
Pages :34-40
Received Date : 2019-05-15
Revised Date : 2019-05-20
Accepted Date : 2019-05-23
DOI :https://doi.org/10.15231/jksc.2019.24.2.034

Journal of The Korean Society Combustion ISSN:1226-0959(Print) 2466-2089(Online) 한국연소학회지

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