Efficient gasification of wet biomass residue to produce middle caloric gas--颗粒学报PARTICUOLOGY

Xu, G., Murakami, T., Suda, T., Tani, H., & Mito, Y. (2008). Efficient gasification of wet biomass residue to produce middle caloric gas. Particuology, 6(5), 376–382. https://doi.org/10.1016/j.partic.2008.07.004

Efficient gasification of wet biomass residue to produce middle caloric gas

Guangwen Xu ^{a b *}, Takahiro Murakami ^a, Toshiyuki Suda ^a, Hidehisa Tani ^a, Yutaka Mito ^c

a Research Laboratory, IHI Co., Ltd. (IHI), Isogo-Ku, Yokohama 235-8501, Japan
b State Key Laboratory of Multiphase Phase Complex System, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100080, China
c Energy Research Division, Kobe steel Co., Ltd., Kobe, Hyogo 651-2271, Japan

10.1016/j.partic.2008.07.004

Volume 6, Issue 5, October 2008, Pages 376-382

Received 30 October 2007, Accepted 14 July 2008, Available online 24 September 2008.

E-mail: gwxu@home.ipe.ac.cn

Highlights

Abstract

Various process residues represent a kind of biomass resource already concentrated but containing water as much as 60 wt.%. These materials are generally treated as waste or simply combusted directly to generate heat. Recently, we attempted to convert them into middle caloric gas to substitute for natural gas, as a chemical or a high-rank gaseous fuel for advanced combustion utilities. Such conversion is implemented through dual fluidized bed gasification (DFBG). Concerning the high water content of the fuels, DFBG was suggested to accomplish either with high-efficiency fuel drying in advance or direct decoupling of fuel drying/pyrolysis from char gasification and tar/hydrocarbon reforming. Along with fuel drying, calcium-based catalyst can be impregnated into the fuel, without much additional cost, to increase the fuel's gasification reactivity and to reduce tar formation. This article reports the Ca impregnation method and its resulting effects on gasification reactivity and tar suppression ability. Meanwhile, the principle of directly gasifying wet fuel with decoupled dual fluidized bed gasification (D-DFBG) is also highlighted.

Graphical abstract

Keywords

High-water content biomass; Catalytic gasification; Dual fluidized bed gasification; Decoupled gasification; Calcium

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