Torrefaction of de-oiled Jatropha seed kernel biomass for solid fuel production

Non-edible Jatropha seed used for biodiesel production has increased due to its high-oil contents in kernel and potential to reduce greenhouse gas emission. High demand for biodiesel generates a large volume of waste. In this study, de-oiled Jatropha seed kernel was torrefied at 200 °C, 250 °C and 3...

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Main Authors: Gan, Yong Yang, Ong, Hwai Chyuan, Ling, Tau Chuan, Chen, Wei-Hsin, Chong, Cheng Tung
Format: Article
Published: Elsevier 2019
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Online Access:http://eprints.um.edu.my/20085/
https://doi.org/10.1016/j.energy.2018.12.026
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Institution: Universiti Malaya
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spelling my.um.eprints.200852019-12-16T03:13:05Z http://eprints.um.edu.my/20085/ Torrefaction of de-oiled Jatropha seed kernel biomass for solid fuel production Gan, Yong Yang Ong, Hwai Chyuan Ling, Tau Chuan Chen, Wei-Hsin Chong, Cheng Tung Q Science (General) QH Natural history TJ Mechanical engineering and machinery Non-edible Jatropha seed used for biodiesel production has increased due to its high-oil contents in kernel and potential to reduce greenhouse gas emission. High demand for biodiesel generates a large volume of waste. In this study, de-oiled Jatropha seed kernel was torrefied at 200 °C, 250 °C and 300 °C, holding time of 15, 30, 45 and 60 min and particle sizes of 0.5–1.0 and 1.0–2.0 mm to produce solid fuel. Torrefaction performance was highly affected by torrefaction temperature compared with holding time. The enhancement factor of HHV increased up to 1.243 after torrefaction at 300 °C and 60 min with particle size of 0.5–1.0 mm. The large particle size reduces the diffusion rate of torrefaction vapour through internal pores, thereby producing high solid yield and low enhancement in HHV. The analysis of torrefaction severity index shows that HHV increase is highly dependent on the weight loss, thereby directly decreasing the total energy in biochar. Scanning electron microscopy image clearly illustrated that the microparticles on the surface were destroyed to increase the porous structure of the biochar with increasing torrefaction temperature. Severe torrefaction with particle size of 0.5–1.0 mm was an effective approach to increase the energy content of biochar. Elsevier 2019 Article PeerReviewed Gan, Yong Yang and Ong, Hwai Chyuan and Ling, Tau Chuan and Chen, Wei-Hsin and Chong, Cheng Tung (2019) Torrefaction of de-oiled Jatropha seed kernel biomass for solid fuel production. Energy, 170. pp. 367-374. ISSN 0360-5442 https://doi.org/10.1016/j.energy.2018.12.026 doi:10.1016/j.energy.2018.12.026
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Research Repository
url_provider http://eprints.um.edu.my/
topic Q Science (General)
QH Natural history
TJ Mechanical engineering and machinery
spellingShingle Q Science (General)
QH Natural history
TJ Mechanical engineering and machinery
Gan, Yong Yang
Ong, Hwai Chyuan
Ling, Tau Chuan
Chen, Wei-Hsin
Chong, Cheng Tung
Torrefaction of de-oiled Jatropha seed kernel biomass for solid fuel production
description Non-edible Jatropha seed used for biodiesel production has increased due to its high-oil contents in kernel and potential to reduce greenhouse gas emission. High demand for biodiesel generates a large volume of waste. In this study, de-oiled Jatropha seed kernel was torrefied at 200 °C, 250 °C and 300 °C, holding time of 15, 30, 45 and 60 min and particle sizes of 0.5–1.0 and 1.0–2.0 mm to produce solid fuel. Torrefaction performance was highly affected by torrefaction temperature compared with holding time. The enhancement factor of HHV increased up to 1.243 after torrefaction at 300 °C and 60 min with particle size of 0.5–1.0 mm. The large particle size reduces the diffusion rate of torrefaction vapour through internal pores, thereby producing high solid yield and low enhancement in HHV. The analysis of torrefaction severity index shows that HHV increase is highly dependent on the weight loss, thereby directly decreasing the total energy in biochar. Scanning electron microscopy image clearly illustrated that the microparticles on the surface were destroyed to increase the porous structure of the biochar with increasing torrefaction temperature. Severe torrefaction with particle size of 0.5–1.0 mm was an effective approach to increase the energy content of biochar.
format Article
author Gan, Yong Yang
Ong, Hwai Chyuan
Ling, Tau Chuan
Chen, Wei-Hsin
Chong, Cheng Tung
author_facet Gan, Yong Yang
Ong, Hwai Chyuan
Ling, Tau Chuan
Chen, Wei-Hsin
Chong, Cheng Tung
author_sort Gan, Yong Yang
title Torrefaction of de-oiled Jatropha seed kernel biomass for solid fuel production
title_short Torrefaction of de-oiled Jatropha seed kernel biomass for solid fuel production
title_full Torrefaction of de-oiled Jatropha seed kernel biomass for solid fuel production
title_fullStr Torrefaction of de-oiled Jatropha seed kernel biomass for solid fuel production
title_full_unstemmed Torrefaction of de-oiled Jatropha seed kernel biomass for solid fuel production
title_sort torrefaction of de-oiled jatropha seed kernel biomass for solid fuel production
publisher Elsevier
publishDate 2019
url http://eprints.um.edu.my/20085/
https://doi.org/10.1016/j.energy.2018.12.026
_version_ 1654960693192949760