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Understanding Off-Gassing of Biofuel Wood Pellets Using Pellets Produced from Pure Microcrystalline Cellulose with Different Additive Oils

Siwale, Workson and Frodeson, Stefan and Finell, Michael and Arshadi, Mehrdad and Jonsson, Carina and Henriksson, Gunnar and Berghel, Jonas (2022). Understanding Off-Gassing of Biofuel Wood Pellets Using Pellets Produced from Pure Microcrystalline Cellulose with Different Additive Oils. Energies. 15 :6 , 2281
[Research article]

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Abstract

Fuel wood pellets have the tendency of undergoing self-heating and off-gassing during storage and transportation. Self-heating can lead to spontaneous combustion and cause fires while toxic gasses such as carbon monoxide and some volatile organic compounds released due to off-gassing are a human health and environmental hazard. Previous research suggests that the self-heating and off-gassing of wood pellets are as a result of the oxidation of wood extractives. The aim of this study was to identify the extractives, i.e., fatty and resin acids that are responsible for the emissions of carbon monoxide, carbon dioxide and methane from wood pellets by testing the off-gassing tendencies of pellets produced from synthetic microcrystalline cellulose and different additive oils. The additive oils were intentionally selected to represent different types of wood extractives (mainly fatty and resin acids) and they included: tall oil, pine rosin, linseed oil and coconut oil. The highest mean concentrations of carbon monoxide, carbon dioxide and methane were recorded from cellulose pellets with added linseed oil. The concentrations of carbon monoxide and methane for the other four pellet types were negligible and there was no carbon dioxide emission. Pellets with added linseed oil had high off-gas emissions due to the high content of unsaturated fatty acids compared to other pellet types.

Authors/Creators:Siwale, Workson and Frodeson, Stefan and Finell, Michael and Arshadi, Mehrdad and Jonsson, Carina and Henriksson, Gunnar and Berghel, Jonas
Title:Understanding Off-Gassing of Biofuel Wood Pellets Using Pellets Produced from Pure Microcrystalline Cellulose with Different Additive Oils
Series Name/Journal:Energies
Year of publishing :2022
Volume:15
Number:6
Article number:2281
Number of Pages:12
Publisher:MDPI
ISSN:1996-1073
Language:English
Publication Type:Research article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 2 Engineering and Technology > 209 Industrial Biotechnology > Bioenergy
Keywords:off-gassing, cellulose pellets, additive oils, fatty and resin acids, solid biofuels, wood pellets, self-heating
URN:NBN:urn:nbn:se:slu:epsilon-p-116793
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-116793
Additional ID:
Type of IDID
DOI10.3390/en15062281
Web of Science (WoS)000775539800001
ID Code:27652
Faculty:S - Faculty of Forest Sciences
Department:(S) > Department of Forest Biomaterials and Technology
Deposited By: SLUpub Connector
Deposited On:29 Apr 2022 09:26
Metadata Last Modified:29 Apr 2022 09:31

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