Catalytic Fast Pyrolysis of Forestry Wood Waste for Bio-Energy Recovery Using Nano-Catalysts

Cheng Li, Xiaochen Yue, Jun Yang, Yafeng Yang, Haiping Gu and Wanxi Peng
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Cheng Li: School of Forestry, Henan Agricultural University, Zhengzhou 450002, China
Xiaochen Yue: School of Forestry, Henan Agricultural University, Zhengzhou 450002, China
Jun Yang: School of Forestry, Henan Agricultural University, Zhengzhou 450002, China
Yafeng Yang: School of Forestry, Henan Agricultural University, Zhengzhou 450002, China
Haiping Gu: School of Forestry, Henan Agricultural University, Zhengzhou 450002, China
Wanxi Peng: School of Forestry, Henan Agricultural University, Zhengzhou 450002, China

Energies, 2019, vol. 12, issue 20, 1-12

Abstract: Fast pyrolysis is envisioned as a promising technology for the utilization of forestry wood waste (e.g., widely available from tree logging) as resources. In this study, the potential of an innovative approach was explored to convert forestry wood waste of Vernicia fordii (VF) into energy products based on fast pyrolysis combined with nano-catalysts. The results from fast pyrolysis using three types of nano-catalysts showed that the distribution and composition of the pyrolytic product were affected greatly by the type of nano-catalyst employed. The use of nano-Fe 2 O 3 and nano-NiO resulted in yields of light hydrocarbons (alkanes and olefins) as 38.7% and 33.2%, respectively. Compared to the VF sample, the use of VF-NiO and VF-Fe 2 O 3 led to significant increases in the formation of alkanes (e.g., from 14% to 26% and 31%, respectively). In addition, the use of nano-NiO and nano-Fe 2 O 3 catalysts was found to promote the formation of acid, aromatics, and phenols that can be used as chemical feedstocks. The NiO catalyst affected the bio-oil composition by promoting lignin decomposition for the formation of aromatics and phenolics, which were increased from 9.52% to 14.40% and from 1.65% to 4.02%, respectively. Accordingly, the combined use of nano-catalysts and fast pyrolysis can be a promising technique for bio-energy applications to allow efficient recovery of fuel products from forestry wood waste.

Keywords: pyrolysis; catalyst; wood; waste; energy (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: 2019
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