Next Article in Journal
Determining the Minimal Power Capacity of Energy Storage to Accommodate Renewable Generation
Next Article in Special Issue
Dielectric Properties of Biomass/Biochar Mixtures at Microwave Frequencies
Previous Article in Journal
Impedance Decoupling in DC Distributed Systems to Maintain Stability and Dynamic Performance
Previous Article in Special Issue
Optimization of a Bubbling Fluidized Bed Plant for Low-Temperature Gasification of Biomass
Article Menu
Issue 4 (April) cover image

Export Article

Open AccessArticle
Energies 2017, 10(4), 469;

Thermal Properties of Biochars Derived from Waste Biomass Generated by Agricultural and Forestry Sectors

School of Environment and Chemical Engineering, Foshan University, Foshan 528000, China
Key Laboratory of Soil Contamination Bioremediation of Zhejiang Province, School of Environmental and Resource Sciences, Zhejiang Agricultural and Forestry University, Lin’an, Hangzhou 311300, China
Department of Environmental Engineering, Foshan University, Foshan 528000, China
Centre for Solid Waste Bioprocessing, School of Civil Engineering, School of Chemical Engineering, The University of Queensland, St Lucia, QLD 4072, Australia
College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China
Zhejiang Chengbang Landscape Co. Ltd., Hangzhou 310008, China
School of Engineering, Huzhou University, Huzhou 313000, China
School of Natural Resources and Environmental Science & Korea Biochar Research Center, Kangwon National University, Chuncheon 24341, Korea
Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China
Guangdong Dazhong Agriculture Science Co. Ltd., Dongguan 523169, China
Authors to whom correspondence should be addressed.
Academic Editor: S. Kent Hoekman
Received: 18 December 2016 / Revised: 20 March 2017 / Accepted: 24 March 2017 / Published: 2 April 2017
(This article belongs to the Special Issue Biomass Chars: Elaboration, Characterization and Applications)
Full-Text   |   PDF [3289 KB, uploaded 25 April 2017]   |  


Waste residues produced by agricultural and forestry industries can generate energy and are regarded as a promising source of sustainable fuels. Pyrolysis, where waste biomass is heated under low-oxygen conditions, has recently attracted attention as a means to add value to these residues. The material is carbonized and yields a solid product known as biochar. In this study, eight types of biomass were evaluated for their suitability as raw material to produce biochar. Material was pyrolyzed at either 350 °C or 500 °C and changes in ash content, volatile solids, fixed carbon, higher heating value (HHV) and yield were assessed. For pyrolysis at 350 °C, significant correlations (p < 0.01) between the biochars’ ash and fixed carbon content and their HHVs were observed. Masson pine wood and Chinese fir wood biochars pyrolyzed at 350 °C and the bamboo sawdust biochar pyrolyzed at 500 °C were suitable for direct use in fuel applications, as reflected by their higher HHVs, higher energy density, greater fixed carbon and lower ash contents. Rice straw was a poor substrate as the resultant biochar contained less than 60% fixed carbon and a relatively low HHV. Of the suitable residues, carbonization via pyrolysis is a promising technology to add value to pecan shells and Miscanthus. View Full-Text
Keywords: biochar; biomass; higher heating value (HHV); proximate analysis; renewable energy biochar; biomass; higher heating value (HHV); proximate analysis; renewable energy

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Share & Cite This Article

MDPI and ACS Style

Yang, X.; Wang, H.; Strong, P.J.; Xu, S.; Liu, S.; Lu, K.; Sheng, K.; Guo, J.; Che, L.; He, L.; Ok, Y.S.; Yuan, G.; Shen, Y.; Chen, X. Thermal Properties of Biochars Derived from Waste Biomass Generated by Agricultural and Forestry Sectors. Energies 2017, 10, 469.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Energies EISSN 1996-1073 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top