The mechanism of bed material coating in dual fluidized bed biomass steam gasification plants and its impact on plant optimization

作者: Friedrich Kirnbauer , Hermann Hofbauer

DOI: 10.1016/J.POWTEC.2013.04.022

关键词:

摘要: Abstract The bed material and especially its catalytic activity plays an important role in biomass steam gasification dual fluidized gasifiers. is modified by interaction with ash during operation of the plant forming layers at particles which are induced ash. Optimization will have significant influence on process variables such as temperatures, inorganic composition product gas composition. these changes layer formation still unknown. This paper summarizes results investigations about characteristics taken from industrial-scale Gussing where woody used fuel. Analyses surface crystal structures treated combustion atmospheres were carried out. thermal behavior olivine fresh different was analyzed. A suggestion for mechanism presented possible optimization measures discussed. change elemental not detectable but a slight structure. Thermal show weak endothermic weight loss CO2-rich atmosphere could be determined olivine. considered to caused intensive contact burning char reactor.

参考文章(53)
HP Nielsen, LL Baxter, G Sclippab, C Morey, FJ Frandsen, Kim Dam-Johansen, Deposition of potassium salts on heat transfer surfaces in straw-fired boilers: a pilot-scale study Fuel. ,vol. 79, pp. 131- 139 ,(2000) , 10.1016/S0016-2361(99)00090-3
Tobias Pröll, Reinhard Rauch, Christian Aichernig, Hermann Hofbauer, Fluidized Bed Steam Gasification of Solid Biomass - Performance Characteristics of an 8 MWth Combined Heat and Power Plant International Journal of Chemical Reactor Engineering. ,vol. 5, ,(2007) , 10.2202/1542-6580.1398
Lopamudra Devi, Krzysztof J. Ptasinski, Frans J. J. G. Janssen, Decomposition of Naphthalene as a Biomass Tar over Pretreated Olivine: Effect of Gas Composition, Kinetic Approach, and Reaction Scheme Industrial & Engineering Chemistry Research. ,vol. 44, pp. 9096- 9104 ,(2005) , 10.1021/IE050801G
Lopamudra Devi, Krzysztof J. Ptasinski, Frans J.J.G. Janssen, Pretreated olivine as tar removal catalyst for biomass gasifiers : investigation using naphthalene as model biomass tar Fuel Processing Technology. ,vol. 86, pp. 707- 730 ,(2005) , 10.1016/J.FUPROC.2004.07.001
Nicholas H. Florin, Andrew T. Harris, Enhanced hydrogen production from biomass with in situ carbon dioxide capture using calcium oxide sorbents Chemical Engineering Science. ,vol. 63, pp. 287- 316 ,(2008) , 10.1016/J.CES.2007.09.011
Tobias Pro¨ll, Reinhard Rauch, Christian Aichernig, Hermann Hofbauer, Fluidized Bed Steam Gasification of Solid Biomass: Analysis and Optimization of Plant Operation Using Process Simulation 18th International Conference on Fluidized Bed Combustion. pp. 763- 770 ,(2005) , 10.1115/FBC2005-78129
T. Valmari, T. M. Lind, E. I. Kauppinen, G. Sfiris, K. Nilsson, W. Maenhaut, Field Study on Ash Behavior during Circulating Fluidized-Bed Combustion of Biomass. 1. Ash Formation Energy & Fuels. ,vol. 13, pp. 379- 389 ,(1999) , 10.1021/EF980085D
Alejandro Grimm, Nils Skoglund, Dan Boström, Christoffer Boman, Marcus Öhman, Influence of Phosphorus on Alkali Distribution during Combustion of Logging Residues and Wheat Straw in a Bench-Scale Fluidized Bed Energy & Fuels. ,vol. 26, pp. 3012- 3023 ,(2012) , 10.1021/EF300275E