Journal
ENERGIES
Volume 3, Issue 11, Pages 1805-1820Publisher
MDPI AG
DOI: 10.3390/en3111805
Keywords
biomass; fast pyrolysis; catalytic cracking; Py-GC/MS; nano metal oxides
Categories
Funding
- National Basic Research Program of China [2007CB210203, 2009CB219801]
- Nature Science Foundation of Beijing [3101001]
- Ministry of Education of China [108033, 107119]
- National Science Foundation of China [50976032]
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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.
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