|
|
|
Syngas composition study |
| Zhe WANG , Jinning YANG , Zheng LI , Yong XIANG , |
| The State Key Lab of
Power Systems, Department of Thermal Engineering, Tsinghua-BP Clean
Energy Center,Tsinghua University, Beijing 100084,China; |
|
|
|
Abstract The syngas composition characteristic was investigated in the real slurry-feed gasifier using a detailed gas phase reaction mechanism. The results show that the time for syngas to reach equilibrium is much shorter than the residence time for slurry feed entrained-flow gasifiers, indicating a gas phase species partial equilibrium state. Further calculation shows that the four major species, CO, CO2, H2, and H2O, are in equilibrium via the reaction . Suggestions are provided for future modeling and model validation.
|
| Keywords
entrained-flow
gasifier
syngas
|
|
Issue Date: 05 September 2009
|
|
|
lfee.mit.edu/public/LFEE_2005-002_WP5.pdf
|
|
Ruggiero M, Manfrida G. An equilibrium model forbiomass gasification processes. RenewableEnergy, 1999, 16(1―4): 1106―1109
doi: 10.1016/S0960-1481(98)00429-7
|
|
Chern S M, Wallawender W P, Fan L T. Equilibrium modeling of a downdraft gasifier. 1. overallgasifier. Chemical Engineering Communications, 1991, 108(1): 243–265
doi: 10.1080/00986449108910961
|
|
Li X, Grace J, Watkinson A, et al. Equilibrium modeling of gasification: a freeenergy minimization approach and its application to a circulatingfluidized bed coal gasifier. Fuel, 2001, 80(2): 195―207
doi: 10.1016/S0016-2361(00)00074-0
|
|
Li Z, Wang T, Han Z, et al. Study of mathematical model for Texaco gaifier(I)―Modeling. Power Engineering, 2001, 21(2): 1316―1319
|
|
Li Z, Wang T, Han Z, et al. Study of mathematical model for Texaco gaifier(II)―Calculation and analysis. PowerEngineering, 2001, 21(4): 1161―1168
|
|
Ruprecht P, Schafer W, Wallace P. A computer model of entrained coal gasification. Fuel, 1988, 67(6): 739―742
doi: 10.1016/0016-2361(88)90142-1
|
|
Chen C, Horio M, Kojima T., Numerical simulation of entrained flow coal gasifiers.Part I: Modeling of coal gasification in an entrained flow gasifier. Chemical Engineering Science, 2000, 55(8): 3861―3874
doi: 10.1016/S0009-2509(00)00030-0
|
|
Chen C, Horio M, Kojima T. Numerical simulation of entrained flow coal gasifiers.Part II: Effects of operating conditions on gasifier performance. Chemical Engineering Science, 2000, 55(8): 3875―3883
doi: 10.1016/S0009-2509(00)00031-2
|
|
Chen C, Horio M, Kojima T. Use of numerical modeling in the design and scale-upof entrained flow coal gasifiers. Fuel, 2001, 80(10): 1513―1523
doi: 10.1016/S0016-2361(01)00013-8
|
|
Choi Y, Li X, Park T, et al. Numerical study on the coal gasification characteristicsin an entrained flow coal gasifier. Fuel, 2001, 80(15): 2193―2201
doi: 10.1016/S0016-2361(01)00101-6
|
|
Cho H. Anumerical study on parametric sensitivity of the flow characteristicson pulverized coal gasification. InternationalJournal Energy Research, 2000, 24(6): 511―523
doi: 10.1002/(SICI)1099-114X(200005)24:6<511::AID-ER600>3.0.CO;2-M
|
|
Vicente W, Ochoa S, Aguillon J, et al. An Eulerian model for the simulation of an entrainedflow coal gasifier. Applied Thermal Engineering, 2003, 23(15): 1993―2008
doi: 10.1016/S1359-4311(03)00149-2
|
|
Perkins G, Sahajwalla V. A mathematical model forthe chemical reaction of a semi-infinite block of coal undergroundcoal gasification. Energy & Fuels, 2005, 19(4): 1679―1692
doi: 10.1021/ef0496808
|
|
Li J, Zhao Z, Kazakov A, et al. A comprehensive kinetic mechanism for CO, CH2O, and CH3OH combustion. International Journal of Chemical Kinetics, 2007, 39(3): 109―136
doi: 10.1002/kin.20218
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
| |
Shared |
|
|
|
|
| |
Discussed |
|
|
|
|