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Title: Hot Water Extraction Improves the Characteristics of Willow and Sugar Maple Biomass With Different Amount of Bark

Abstract

Shrub willows are being developed as a short rotation woody crop (SRWC) that can grow on marginal agricultural land. Willow has a high net energy ratio (energy produced/ fossil fuel energy consumed), low greenhouse gas footprint and high carbohydrate production potential. Willow biomass can be combined with forest biomass, but willow often has a higher proportion of bark that creates challenges because it increases the ash content and decreases the melting point. Hot water extraction is a pretreatment that has been shown to improve the quality of chipped material while producing a marketable stream of byproducts. This study evaluated how the amount of bark (0%, 33%, 66% and 100%) on three willow cultivars and sugar maple impact the output of hot water extraction in terms of mass removal and extract composition, as well as its influence on the heating value, ash and elemental content. The hot water extraction process resulted in ash content up to 50% for sugar maple and willow, but there was variation among the willow varieties. The heating value after hot water extraction was about 5% higher because of the removal of mostly hemicelluloses, which have relatively low heating value. HWE led to significant reductions of calcium,more » potassium, magnesium and sulfur contents. The hot water extraction provides a fermentable sugar stream and other coproducts after multiple separation and treatment steps, and improves the characteristics of willow and sugar maple biomass for combined heat and power. This paper demonstrates how biomass with higher bark content can generate a useable sugar stream while improving the quality of the biomass for combined heat and power by managing its ash content while simultaneously producing other valuable products.« less

Authors:
 [1];  [1];  [2];  [1];  [1]
  1. State Univ. of New York (SUNY), Syracuse, NY (United States). College of Environmental Science and Forestry
  2. Univ. Catolica del Maule, Talca (Chile)
Publication Date:
Research Org.:
State Univ. of New York (SUNY), Syracuse, NY (United States). College of Environmental Science and Forestry
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Transportation Office. Bioenergy Technologies Office
OSTI Identifier:
1734631
Grant/Contract Number:  
EE0006638
Resource Type:
Accepted Manuscript
Journal Name:
Frontiers in Energy Research
Additional Journal Information:
Journal Volume: 6; Journal ID: ISSN 2296-598X
Publisher:
Frontiers Research Foundation
Country of Publication:
United States
Language:
English
Subject:
09 BIOMASS FUELS; SRWC; willow; hot water extraction; heating value; ash; alkali metals; biomass

Citation Formats

Therasme, Obste, Volk, Timothy A., Cabrera, Antonio M., Eisenbies, Mark H., and Amidon, Thomas E.. Hot Water Extraction Improves the Characteristics of Willow and Sugar Maple Biomass With Different Amount of Bark. United States: N. p., 2018. Web. https://doi.org/10.3389/fenrg.2018.00093.
Therasme, Obste, Volk, Timothy A., Cabrera, Antonio M., Eisenbies, Mark H., & Amidon, Thomas E.. Hot Water Extraction Improves the Characteristics of Willow and Sugar Maple Biomass With Different Amount of Bark. United States. https://doi.org/10.3389/fenrg.2018.00093
Therasme, Obste, Volk, Timothy A., Cabrera, Antonio M., Eisenbies, Mark H., and Amidon, Thomas E.. Tue . "Hot Water Extraction Improves the Characteristics of Willow and Sugar Maple Biomass With Different Amount of Bark". United States. https://doi.org/10.3389/fenrg.2018.00093. https://www.osti.gov/servlets/purl/1734631.
@article{osti_1734631,
title = {Hot Water Extraction Improves the Characteristics of Willow and Sugar Maple Biomass With Different Amount of Bark},
author = {Therasme, Obste and Volk, Timothy A. and Cabrera, Antonio M. and Eisenbies, Mark H. and Amidon, Thomas E.},
abstractNote = {Shrub willows are being developed as a short rotation woody crop (SRWC) that can grow on marginal agricultural land. Willow has a high net energy ratio (energy produced/ fossil fuel energy consumed), low greenhouse gas footprint and high carbohydrate production potential. Willow biomass can be combined with forest biomass, but willow often has a higher proportion of bark that creates challenges because it increases the ash content and decreases the melting point. Hot water extraction is a pretreatment that has been shown to improve the quality of chipped material while producing a marketable stream of byproducts. This study evaluated how the amount of bark (0%, 33%, 66% and 100%) on three willow cultivars and sugar maple impact the output of hot water extraction in terms of mass removal and extract composition, as well as its influence on the heating value, ash and elemental content. The hot water extraction process resulted in ash content up to 50% for sugar maple and willow, but there was variation among the willow varieties. The heating value after hot water extraction was about 5% higher because of the removal of mostly hemicelluloses, which have relatively low heating value. HWE led to significant reductions of calcium, potassium, magnesium and sulfur contents. The hot water extraction provides a fermentable sugar stream and other coproducts after multiple separation and treatment steps, and improves the characteristics of willow and sugar maple biomass for combined heat and power. This paper demonstrates how biomass with higher bark content can generate a useable sugar stream while improving the quality of the biomass for combined heat and power by managing its ash content while simultaneously producing other valuable products.},
doi = {10.3389/fenrg.2018.00093},
journal = {Frontiers in Energy Research},
number = ,
volume = 6,
place = {United States},
year = {2018},
month = {9}
}

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