Effect of thermal pretreatment on equilibrium moisture content of lignocellulosic biomass
Abstract
The equilibrium moisture content (EMC) of raw lignocellulosic biomass, along with four samples subjected to thermal pretreatment, was measured at relative humidities ranging from 11% to 97% at a constant temperature of 30 °C. Three samples were prepared by treatment in hot compressed water by a process known as wet torrefaction, at temperatures of 200, 230, and 260 °C. An additional sample was prepared by dry torrefaction at 300 °C. Pretreated biomass shows EMC below that of raw biomass. This indicates that pretreated biomass, both dry and wet torrefied, is more hydrophobic than raw biomass. The EMC results were correlated with a recent model that takes into account additional non-adsorption interactions of water, such as mixing and swelling. The model offers physical insight into the water activity in lignocellulosic biomass.
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Loss of hemicellulose from hydrochar during HTC lowers its tendency to adsorb water and makes it a hydrophobic product.
“During the first of hemicellulose from the hydrochar during HTC lowers its tendency to adsorb water and makes it a hydrophobic product [26].”
From Hydrothermal Conversion of Neutral Sulfite Semi-Chemical Red Liquor into Hydrochar (2016) · cites this paper as [26]
The equilibrium moisture content depends on the chemical composition and functional groups of biomass.
“The equilibrium moisture content also depends on the chemical composition and functional groups of biomass (Acharjee et al., 2011).”
From A Comprehensive Review on Biomass Torrefaction (2014) · cites this paper as Acharjee et al., 2011
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Hydrothermal carbonization: Fate of inorganics
Reza, M. T., Lynam, J. G., Uddin, M. H., & Coronella, C. J. (2013) · Biomass and Bioenergy · doi:10.1016/j.biombioe.2012.12.004 · Cited by 492 · see citing works
Self-citationHydrothermal carbonization of biomass for energy and crop production
Reza, M. T., Andert, J., Wirth, B., Busch, D., Pielert, J., Lynam, J. G., & Mumme, J. (2014) · Applied Bioenergy · doi:10.2478/apbi-2014-0001 · Cited by 396 · see citing works
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Nhuchhen, D., Basu, P., & Acharya, B. (2014) · International Journal of Renewable Energy & Biofuels · doi:10.5171/2014.506376 · Cited by 300 · see citing works
“Cite this Article as: Daya Ram Nhuchhen, Prabir Basu and Bishnu Acharya (2014), “A Comprehensive Review on Biomass Torrefaction,” International Journal of Renewable Energy & Biofuels Vol.”
BackgroundInfluentialA review on advances of torrefaction technologies for biomass processing
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Hydrothermal Conversion of Neutral Sulfite Semi-Chemical Red Liquor into Hydrochar
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- Authors
- Acharjee, T. C., Coronella, C. J., & Vasquez, V. R.
- Affiliations
- University of Nevada, Reno (US)
- Corresponding author
- Coronella, Charles J.
- Venue
- Bioresource Technology
- Publisher
- Elsevier BV
- Published
- 2011-04
- Volume
- 102
- Issue
- 7
- Pages
- 4849-4854
- ISSN
- 0960-8524 (ISSN-L)
- OpenAlex
- W1969125088
- Cited by
- 248
- References
- 1
- Citations by year
- 2026: 6 · 2025: 10 · 2024: 8 · 2023: 13 · 2022: 17 · 2021: 20 · 2020: 18 · 2019: 18 · 2018: 14 · 2017: 15 · 2016: 15 · 2015: 24 · 2014: 29 · 2013: 15 · 2012: 22
- FWCI
- 13.25
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Bioresource Technology (publishedVersion)
- PubMed (publishedVersion)
- Funders
- US Department of Energy (DE-FG36-01GO11082)
- Topics
- Physical Sciences › Engineering › Biomedical Engineering › Thermochemical Biomass Conversion Processes
- Physical Sciences › Engineering › Biomedical Engineering › Biofuel production and bioconversion
- Life Sciences › Agricultural and Biological Sciences › Food Science › Food Drying and Modeling
- Keywords
- equilibrium moisture content, lignocellulosic biomass, thermal pretreatment, torrefaction, wet torrefaction, dry torrefaction, water activity, hydrophobicity, relative humidity
- MeSH terms
- Hot Temperature, Humidity, Lignin, Models, Chemical, Water, Biofuels
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