Catalytic Upgrading of Biomass Fast Pyrolysis Vapors with Nano Metal Oxides: An Analytical Py-GC/MS Study

Qiang Lu, Zhi-Fei Zhang, Chang-Qing Dong and Xi-Feng Zhu
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Qiang Lu: National Engineering Laboratory for Biomass Power Generation Equipment, North China Electric Power University, Beijing 102206, China
Zhi-Fei Zhang: National Engineering Laboratory for Biomass Power Generation Equipment, North China Electric Power University, Beijing 102206, China
Chang-Qing Dong: National Engineering Laboratory for Biomass Power Generation Equipment, North China Electric Power University, Beijing 102206, China
Xi-Feng Zhu: Key Laboratory for Biomass Clean Energy of Anhui Province, University of Science and Technology of China, Hefei 230026, China

Energies, 2010, vol. 3, issue 11, 1-16

Abstract: Fast pyrolysis of poplar wood followed with catalytic cracking of the pyrolysis vapors was performed using analytical pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS). The catalysts applied in this study were nano MgO, CaO, TiO 2 , Fe 2 O 3 , NiO and ZnO. These catalysts displayed different catalytic capabilities towards the pyrolytic products. The catalysis by CaO significantly reduced the levels of phenols and anhydrosugars, and eliminated the acids, while it increased the formation of cyclopentanones, hydrocarbons and several light compounds. ZnO was a mild catalyst, as it only slightly altered the pyrolytic products. The other four catalysts all decreased the linear aldehydes dramatically, while the increased the ketones and cyclopentanones. They also reduced the anhydrosugars, except for NiO. Moreover, the catalysis by Fe 2 O 3 resulted in the formation of various hydrocarbons. However, none of these catalysts except CaO were able to greatly reduce the acids.

Keywords: biomass; fast pyrolysis; catalytic cracking; Py-GC/MS; nano metal oxides (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2010
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (23)

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