Kinetics of production of nitric oxide during the pyrolysis of small particles of coal in a hot (electrically heated) bed of sand fluidised by pure nitrogen

作者: A. F. Barker , D. Hart , A. N. Hayhurst

DOI: 10.1179/174602208X305228

关键词:

摘要: AbstractTiny coal particles (size 300 kJ mol-1) broken during pyrolysis or devolatilisation. Likewise, the frequency factor for thermal decomposition producing NO is 5 s-1; this very much less than expected value of ~1014 s-1. The reason these major numerical discrepancies that volatile matter and consequently are produced by many first order reactions, all acting in parallel. These differences also hold generally kinetics devolatilisation, when hydr...

参考文章(13)
J DESYPRIS, P MURDOCH, A WILLIAMS, Investigation of the flash pyrolysis of some coals Fuel. ,vol. 61, pp. 807- 816 ,(1982) , 10.1016/0016-2361(82)90307-6
M.S. Parmar, A.N. Hayhurst, The heat transfer coefficient for a freely moving sphere in a bubbling fluidised bed Chemical Engineering Science. ,vol. 57, pp. 3485- 3494 ,(2002) , 10.1016/S0009-2509(02)00259-2
P.S. Fennell, S. Kadchha, H.-Y. Lee, J.S. Dennis, A.N. Hayhurst, The measurement of the rate of burning of different coal chars in an electrically heated fluidised bed of sand Chemical Engineering Science. ,vol. 62, pp. 608- 618 ,(2007) , 10.1016/J.CES.2006.09.024
N. Wakao, J.M. Smith, Diffusion in catalyst pellets Chemical Engineering Science. ,vol. 17, pp. 825- 834 ,(1962) , 10.1016/0009-2509(62)87015-8
Robert D. LaNauze, Coal devolatilization in fluidized-bed combustors Fuel. ,vol. 61, pp. 771- 774 ,(1982) , 10.1016/0016-2361(82)90255-1
S.A. Scott, J.S. Dennis, J.F. Davidson, A.N. Hayhurst, An algorithm for determining the kinetics of devolatilisation of complex solid fuels from thermogravimetric experiments Chemical Engineering Science. ,vol. 61, pp. 2339- 2348 ,(2006) , 10.1016/J.CES.2005.11.002
Steven T. Perry, Thomas H. Fletcher, Mark S. Solum, Ronald J. Pugmire, Modeling nitrogen evolution during coal pyrolysis based on a global free-radical mechanism Energy & Fuels. ,vol. 14, pp. 1094- 1102 ,(2000) , 10.1021/EF000061I
Jyuung-Shiauu Chern, Allan N. Hayhurst, A model for the devolatilization of a coal particle sufficiently large to be controlled by heat transfer Combustion and Flame. ,vol. 146, pp. 553- 571 ,(2006) , 10.1016/J.COMBUSTFLAME.2006.04.011
S SCOTT, J DENNIS, J DAVIDSON, A HAYHURST, Thermogravimetric measurements of the kinetics of pyrolysis of dried sewage sludge Fuel. ,vol. 85, pp. 1248- 1253 ,(2006) , 10.1016/J.FUEL.2005.11.003