Biomass pyrolysis/gasification using three dimensional ordered macroporous (3DOM) Fe<sub>2</sub>O<sub>3</sub> as an oxygen carrier

ZHAO Kun; HE Fang; HUANG Zhen; WEI Guo-qiang; LI Hai-bin; ZHAO Zeng-li

Volume 41 Issue 03

Mar. 2013

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Article Navigation > Journal of Fuel Chemistry and Technology > 2013 > 41(03): 277-284

ZHAO Kun, HE Fang, HUANG Zhen, WEI Guo-qiang, LI Hai-bin, ZHAO Zeng-li. Biomass pyrolysis/gasification using three dimensional ordered macroporous (3DOM) Fe2O3 as an oxygen carrier[J]. Journal of Fuel Chemistry and Technology, 2013, 41(03): 277-284.

Citation:

ZHAO Kun, HE Fang, HUANG Zhen, WEI Guo-qiang, LI Hai-bin, ZHAO Zeng-li. Biomass pyrolysis/gasification using three dimensional ordered macroporous (3DOM) Fe₂O₃ as an oxygen carrier[J]. Journal of Fuel Chemistry and Technology, 2013, 41(03): 277-284.

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Biomass pyrolysis/gasification using three dimensional ordered macroporous (3DOM) Fe₂O₃ as an oxygen carrier

1.
The Key Laboratory of Renewable Energy and Gas Hydrate of Chinese Academy of Sciences, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China;
2.
University of Chinese Academy of Sciences, Beijing 100049, China

Received Date: 2012-09-11
Rev Recd Date: 2012-12-10
Publish Date: 2013-03-30

Abstract

Abstract

Polystyrene spheres were prepared by soap free emulsion polymerization method,then three dimensional ordered macroporous (3DOM) oxides Fe₂O₃ were successfully prepared after impregnation and calcination using nitrates as raw materials and citric acid as complexing agent. The samples were characterized by the techniques of scanning electron microscopy (SEM), X-ray diffraction(XRD), BET and mercury porosimetry. Pyrolysis and gasification of biomass with Fe₂O₃ as oxygen carriers in helium atmosphere were carried out in a thermogravimetric analyzer coupled with mass spectrometry (TG-MS). The possibility of 3DOM Fe₂O₃ functioning as gasification agent in biomass gasification substituted for pure oxygen, oxygen-enriched air or steam were investigated. Furthermore, a comparison experiment was carried out by using analytically pure Fe₂O₃ to analysis the high-performance of 3DOM Fe₂O₃. The characterization results showed that 3DOM Fe₂O₃ presented a three-dimensional ordered macroporous morphology, its tiers were arranged alternatively and connected through three-dimensional pore structures. By contrast with the XRD pattern of analytically pure Fe₂O₃. TG-MS results showed that Fe₂O₃ contributed to biomass gasification in high temperature stage. When used 3DOM Fe₂O₃ as oxygen carrier, the maximum weight loss and maximum weight loss rate raised 7.1% and 0.29%/min in the gasification stage, respectively, meanwhile two generation peaks of CO, CO₂, and CH₄ appeared in the MS curves.
- TG-MS,
- 3DOM,
- oxygen carrier,
- biomass,
- pyrolysis gasification

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References

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