A two-phase reactor model for the steam-gasification of carbonaceous materials under concentrated thermal radiation

作者: A. Z’Graggen , A. Steinfeld

DOI: 10.1016/J.CEP.2006.12.003

关键词:

摘要: A chemical reactor for the steam-gasification of carbonaceous materials (e.g., coal or coke) is modeled by means a two-phase formulation that couples radiative, convective, and conductive heat transfer to kinetics. unique feature gas-particle flow directly exposed concentrated solar radiation, providing efficient radiative reaction site high-temperature endothermic process. The governing mass, momentum, energy conservation equations are solved applying Monte Carlo, two-flux, finite-volume techniques. Validation accomplished comparing numerically calculated temperatures, product composition, conversions with experimentally measured values obtained from testing 5 kW prototype in high-flux furnace.

参考文章(29)
M. Binnewies, E. Milke, Thermochemical data of elements and compounds ,(1999)
Nikolaus Hansen, Stefan Kern, Evaluating the CMA Evolution Strategy on Multimodal Test Functions parallel problem solving from nature. pp. 282- 291 ,(2004) , 10.1007/978-3-540-30217-9_29
P. von Zedtwitz, W. Lipiński, A. Steinfeld, Numerical and experimental study of gas–particle radiative heat exchange in a fluidized-bed reactor for steam-gasification of coal Chemical Engineering Science. ,vol. 62, pp. 599- 607 ,(2007) , 10.1016/J.CES.2006.09.027
W. Lipinski, A. Steinfeld, Heterogeneous thermochemical decomposition under direct irradiation International Journal of Heat and Mass Transfer. ,vol. 47, pp. 1907- 1916 ,(2004) , 10.1016/J.IJHEATMASSTRANSFER.2003.10.010
Joachim Werther, Ernst-Ulrich Hartge, Modeling of Industrial Fluidized-Bed Reactors Industrial & Engineering Chemistry Research. ,vol. 43, pp. 5593- 5604 ,(2004) , 10.1021/IE030760T
A ZGRAGGEN, P HAUETER, D TROMMER, M ROMERO, J DEJESUS, A STEINFELD, Hydrogen production by steam-gasification of petroleum coke using concentrated solar power—II Reactor design, testing, and modeling International Journal of Hydrogen Energy. ,vol. 31, pp. 797- 811 ,(2006) , 10.1016/J.IJHYDENE.2005.06.011
Aldo Steinfeld, Solar thermochemical production of hydrogen--a review Solar Energy. ,vol. 78, pp. 603- 615 ,(2005) , 10.1016/J.SOLENER.2003.12.012
Hong-ming Yan, Craig Heidenreich, Dong-ke Zhang, Mathematical modelling of a bubbling fluidised-bed coal gasifier and the significance of ‘net flow’ Fuel. ,vol. 77, pp. 1067- 1079 ,(1998) , 10.1016/S0016-2361(98)00003-9