Abstract
This paper introduces a circulating fluidized bed gasifier (CFBG) with a diameter of 410mm, a height of 4000mm and a load of 250kg/m2h for wood powders. The CFBG has been operated in Press Wood Products factory, utilizing its wastes, for more than a year in Zhanjiang, China. The gas produced is used to fuel the boiler. The whole system including gasifier, feeding and circulating are all operated pneumatically. The design of the CFBG, including fast fluidized bed for gasification and L-valves for feeding and circulating is presented in detail. The main factors to operate the system, especially for wood powders, which are very difficult to be fluidized, are elucidated in the paper. The performance of the CFBG is expressed as follows:
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Productivity: 2000kg4m2h
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LHV of gas: 7000KJ/m3
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Heat efficiency of cold gas: 75%
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References
Xu Bingyan, Luo Zengfen, Chen xiaowan et.al: “Design and operation of an up-draft gasifier” Acta Energiae Solaris Sinica, Volume 9, Issue 4, 1988
Xu Bingyan, Virgil Flanigan, Olive Sitton, Eric, W. Huang: “Design and Operation of A 6 Inch Fluidized Bed Gasifier for Rice Hulls”, Symposium paper of “Energy from Biomass and Wastes IX” Orlando, U.S.A. 1985.
Mooson Kwauk et. al: “Fast fluidization At 1CM” from “Circulating Fluidized Bed Technology”.
T.M. Knowlton: “Solids Transfer in Fluidized System” from “Gas Fluidization Technology” John Wiley & Sons Ltd., 1986.
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© 1993 Springer Science+Business Media Dordrecht
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Bingyan, X., Jiagzhi, W., Zengfen, L., Haitao, H., Xiguang, Z. (1993). Design and Operation of a Circulating Fluidized Bed Gasifier for Wood Powders. In: Bridgwater, A.V. (eds) Advances in Thermochemical Biomass Conversion. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-1336-6_28
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DOI: https://doi.org/10.1007/978-94-011-1336-6_28
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-010-4582-7
Online ISBN: 978-94-011-1336-6
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