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Bioresour Technol. 2019 Jun;282:530-533. doi: 10.1016/j.biortech.2019.03.052. Epub 2019 Mar 12.

Gasification and catalytic reforming of corn straw in closed-loop reactor.

Author information

1
Collaborative Innovation Center of Biomass Energy, Henan Agricultural University, Zhengzhou, Henan Province 45002, China.
2
Department of Chemical Engineering, National Taiwan University, Taipei 10617, Taiwan; Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan; Center for Tropical Ecology and Biodiversity, Tunghai University, Taichung 40704, Taiwan. Electronic address: djlee@ntu.edu.tw.

Abstract

A closed-loop gasification and catalytic reforming apparatus was applied for producing syngas from corn straw with upgraded syngas quality. Four nickel based catalysts at 10% and that at 5-15% loadings on γ-A12O3 were synthesized and tested. Effects of reforming temperature (700-900 °C), steam to biomass ratio (S/B, 0.5-2.5), catalyst to biomass ratio (C/B, 0.2-0.6) on the syngas quality and the carbon conversion and gasification efficiency were investigated. Incorporation of reforming reaction with 10% Ni/γ-A12O3 catalyst leads to the highest CO content (50.2%) and lowest CO2 content (7.5%) amongst the four tested catalysts and amongst the Ni/γ-A12O3 catalysts at different Ni loading. The syngas was upgraded by both the decoking reaction in the pyrolytic chamber and the steam reforming and water shift reactions in the reforming chamber.

KEYWORDS:

Gasification; Recirculation; Reforming; Syngas upgrading

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