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Conflict of Interest: In relation to this article, we declare that there is no conflict of interest.

Publication history: Received February 22, 2016
Accepted May 25, 2016

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Pyrolysis kinetics and product properties of softwoods, hardwoods, and the nut shell of softwood

Young-Min Kim Tae Uk Han ByeongAh Hwang Boram Lee Hyung Won Lee¹ Young-Kwon Park¹ Seungdo Kim^†

Department of Environmental Sciences and Biotechnology, Hallym University, Chuncheon 24252, Korea ¹School of Environmental Engineering, University of Seoul, Seoul 02504, Korea

Korean Journal of Chemical Engineering, August 2016, 33(8), 2350-2358(9), 10.1007/s11814-016-0142-2

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Abstract

The pyrolysis of softwoods (Pinus (P.) densiflora, P. koraiensis), hardwoods (Quercus acutissima and Liriodendron tulipifera) and nut shell of P. koraiensis was investigated using a thermogravimetric analyzer and fixed bed reactor. Thermogravimetric analysis showed that the maximum decomposition temperature of each biomass was influenced by the ash content and lignocellulosic composition of biomass. The activation energy values also varied according to the content of hemicellulose and lignin of each biomass. Large amounts of acids, such as acetic acid, were recovered from the hardwood pyrolysis reaction due to their high hemicellulose content. The nut shell of P. koraiensis and softwoods with a higher lignin content produced higher yields of phenolic compounds than the hardwoods.

Keywords

Softwood Hardwood Pyrolysis Kinetics Lignocellulosic Composition