A Comprehensive Characterization of Pyrolysis Oil from Softwood Barks
Abstract
Pyrolysis of raw pine bark, pine, and Douglas-Fir bark was examined. The pyrolysis oil yields of raw pine bark, pine, and Douglas-Fir bark at 500 °C were 29.18%, 26.67%, and 26.65%, respectively. Both energy densification ratios (1.32–1.56) and energy yields (48.40–54.31%) of char are higher than pyrolysis oils (energy densification ratios: 1.13–1.19, energy yields: 30.16–34.42%). The pyrolysis oils have higher heating values (~25 MJ/kg) than bio-oils (~20 MJ/kg) from wood and agricultural residues, and the higher heating values of char (~31 MJ/kg) are comparable to that of many commercial coals. The elemental analysis indicated that the lower O/C value and higher H/C value represent a more valuable source of energy for pyrolysis oils than biomass. The nuclear magnetic resonance results demonstrated that the most abundant hydroxyl groups of pyrolysis oil are aliphatic OH groups, catechol, guaiacol, and p-hydroxy-phenyl OH groups. The aliphatic OH groups are mainly derived from the cleavage of cellulose glycosidic bonds, while the catechol, guaiacol, and p-hydroxy-phenyl OH groups are mostly attributed to the cleavage of the lignin β–O-4 bond. Significant amount of aromatic carbon (~40%) in pyrolysis oils is obtained from tannin and lignin components and the aromatic C–O bonds may be formed by a radicalmore »
- Authors:
-
[1];
[3]
- Southeast Univ., Nanjing (China)
- Qingdao Univ. (China)
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Joint Institute for Biological Sciences (JICS); Univ. of Tennessee, Knoxville, TN (United States)
- Publication Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1606833
- Grant/Contract Number:
- AC05-00OR22725
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Polymers
- Additional Journal Information:
- Journal Volume: 11; Journal Issue: 9; Journal ID: ISSN 2073-4360
- Publisher:
- MDPI
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; pyrolysis oils; biochar; elemental analysis; nuclear magnetic resonance (NMR) analysis
Citation Formats
Ben, Haoxi, Wu, Fengze, Wu, Zhihong, Han, Guangting, Jiang, Wei, and Ragauskas, Arthur J. A Comprehensive Characterization of Pyrolysis Oil from Softwood Barks. United States: N. p., 2019.
Web. doi:10.3390/polym11091387.
Ben, Haoxi, Wu, Fengze, Wu, Zhihong, Han, Guangting, Jiang, Wei, & Ragauskas, Arthur J. A Comprehensive Characterization of Pyrolysis Oil from Softwood Barks. United States. https://doi.org/10.3390/polym11091387
Ben, Haoxi, Wu, Fengze, Wu, Zhihong, Han, Guangting, Jiang, Wei, and Ragauskas, Arthur J. Fri .
"A Comprehensive Characterization of Pyrolysis Oil from Softwood Barks". United States. https://doi.org/10.3390/polym11091387. https://www.osti.gov/servlets/purl/1606833.
@article{osti_1606833,
title = {A Comprehensive Characterization of Pyrolysis Oil from Softwood Barks},
author = {Ben, Haoxi and Wu, Fengze and Wu, Zhihong and Han, Guangting and Jiang, Wei and Ragauskas, Arthur J.},
abstractNote = {Pyrolysis of raw pine bark, pine, and Douglas-Fir bark was examined. The pyrolysis oil yields of raw pine bark, pine, and Douglas-Fir bark at 500 °C were 29.18%, 26.67%, and 26.65%, respectively. Both energy densification ratios (1.32–1.56) and energy yields (48.40–54.31%) of char are higher than pyrolysis oils (energy densification ratios: 1.13–1.19, energy yields: 30.16–34.42%). The pyrolysis oils have higher heating values (~25 MJ/kg) than bio-oils (~20 MJ/kg) from wood and agricultural residues, and the higher heating values of char (~31 MJ/kg) are comparable to that of many commercial coals. The elemental analysis indicated that the lower O/C value and higher H/C value represent a more valuable source of energy for pyrolysis oils than biomass. The nuclear magnetic resonance results demonstrated that the most abundant hydroxyl groups of pyrolysis oil are aliphatic OH groups, catechol, guaiacol, and p-hydroxy-phenyl OH groups. The aliphatic OH groups are mainly derived from the cleavage of cellulose glycosidic bonds, while the catechol, guaiacol, and p-hydroxy-phenyl OH groups are mostly attributed to the cleavage of the lignin β–O-4 bond. Significant amount of aromatic carbon (~40%) in pyrolysis oils is obtained from tannin and lignin components and the aromatic C–O bonds may be formed by a radical reaction between the aromatic and aliphatic hydroxyl groups. In this study, a comprehensive analytical method was developed to fully understand and evaluate the pyrolysis products produced from softwood barks, which could offer valuable information on the pyrolysis mechanism of biomass and promote better utilization of pyrolysis products.},
doi = {10.3390/polym11091387},
journal = {Polymers},
number = 9,
volume = 11,
place = {United States},
year = {Fri Aug 23 00:00:00 EDT 2019},
month = {Fri Aug 23 00:00:00 EDT 2019}
}
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The effect of lignin and inorganic species in biomass on pyrolysis oil yields, quality and stability
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Techno-economic comparison of biomass-to-transportation fuels via pyrolysis, gasification, and biochemical pathways
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Effect of blending ratio of loblolly pine wood and bark on the properties of pyrolysis bio-oils
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Fast pyrolysis of tannins from pine bark as a renewable source of catechols
journal, November 2018
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- Journal of Analytical and Applied Pyrolysis, Vol. 136
Biocidal applications trends of bio-oils from pyrolysis: Characterization of several conditions and biomass, a review
journal, May 2019
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- Journal of Analytical and Applied Pyrolysis, Vol. 139
Lignocellulosic biomass pyrolysis mechanism: A state-of-the-art review
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journal, October 2015
- Li, Changzhi; Zhao, Xiaochen; Wang, Aiqin
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Pyrolysis of Wood/Biomass for Bio-oil: A Critical Review
journal, May 2006
- Mohan, Dinesh; Pittman,, Charles U.; Steele, Philip H.
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NMR Characterization of Pyrolysis Oils from Kraft Lignin
journal, May 2011
- Ben, Haoxi; Ragauskas, Arthur J.
- Energy & Fuels, Vol. 25, Issue 5
Pyrolysis of Wood and Bark in an Auger Reactor: Physical Properties and Chemical Analysis of the Produced Bio-oils
journal, January 2008
- Ingram, Leonard; Mohan, Dinesh; Bricka, Mark
- Energy & Fuels, Vol. 22, Issue 1
Towards a Lignincellulosic Biorefinery: Direct One-Step Conversion of Lignin to Hydrogen-Enriched Biofuel
journal, March 2008
- Kleinert, Mike; Barth, Tanja
- Energy & Fuels, Vol. 22, Issue 2
Characterization of Various Fast-Pyrolysis Bio-Oils by NMR Spectroscopy †
journal, May 2009
- Mullen, Charles A.; Strahan, Gary D.; Boateng, Akwasi A.
- Energy & Fuels, Vol. 23, Issue 5
Production of Bio-oil from Alfalfa Stems by Fluidized-Bed Fast Pyrolysis †
journal, June 2008
- Boateng, Akwasi A.; Mullen, Charles A.; Goldberg, Neil
- Industrial & Engineering Chemistry Research, Vol. 47, Issue 12
Switchgrass as an energy crop for biofuel production: A review of its ligno-cellulosic chemical properties
journal, January 2010
- David, Kasi; Ragauskas, Arthur J.
- Energy & Environmental Science, Vol. 3, Issue 9
Torrefaction of Loblolly pine
journal, January 2012
- Ben, Haoxi; Ragauskas, Arthur J.
- Green Chem., Vol. 14, Issue 1
Pyrolysis oils from CO2 precipitated Kraft lignin
journal, January 2011
- Kosa, Matyas; Ben, Haoxi; Theliander, Hans
- Green Chemistry, Vol. 13, Issue 11
Pyrolysis of Pine ( Pinus Brutia Ten.) Chips: 1. Effect of Pyrolysis Temperature and Heating Rate on the Product Yields
journal, April 2002
- Şensöz, Sevgi; Can, Mukaddes
- Energy Sources, Vol. 24, Issue 4
The Path Forward for Biofuels and Biomaterials
journal, January 2006
- Ragauskas, Arthur J.; Williams, Charlotte K.; Davison, Brian H.
- Science, Vol. 311, Issue 5760, p. 484-489
Pyrolytic Behavior of Major Biomass Components in Waste Biomass
journal, February 2019
- Ben, Haoxi; Wu, Zhihong; Han, Guangting
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Chemical characterization and water content determination of bio-oils obtained from various biomass species using 31 P NMR spectroscopy
journal, March 2012
- David, Kasi; Ben, Haoxi; Muzzy, John
- Biofuels, Vol. 3, Issue 2