Physico-chemical characterization of biomass, coal, and their chars using kinetics and electrochemistry

The supply of sustainable and distributed energy becomes a concern. In this study, physico-chemical characterizations of coffee grounds, raw wood, composting sewage sludge, and raw comparable coal, as well as their chars were performed using carbonization/combustion kinetics and electrochemistry in...

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Main Authors: Kazuhiro Kumabe, Masafumi Chishima, Hiroshi Moritomi
Format: Article
Language:English
Published: Elsevier 2021-11-01
Series:Energy Reports
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2352484721004972
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author Kazuhiro Kumabe
Masafumi Chishima
Hiroshi Moritomi
author_facet Kazuhiro Kumabe
Masafumi Chishima
Hiroshi Moritomi
author_sort Kazuhiro Kumabe
collection DOAJ
description The supply of sustainable and distributed energy becomes a concern. In this study, physico-chemical characterizations of coffee grounds, raw wood, composting sewage sludge, and raw comparable coal, as well as their chars were performed using carbonization/combustion kinetics and electrochemistry in order to promote the supply of sustainable and distributed energy. The carbonization kinetics of coffee grounds were faster than those of raw wood, composting sewage sludge, and raw coal because of the higher content of volatiles and potassium. The specific surface area of the wood char with steam activation was larger than those of the other chars, and that of the coffee grounds char with steam activation was also relatively larger. The graphitization degree of the wood char was similar to that of the coal char. The average potential of a direct carbon fuel cell (DCFC) using the composting sewage sludge char was higher than that of the other chars. Thus, the coffee grounds, wood, and composting sewage sludge chars may be better candidates for use as an adsorbent, heat source, and DCFC fuel, respectively.
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spelling doaj.art-5cbd85e916f0425bb8df2cb2aeed34a92022-12-21T18:13:18ZengElsevierEnergy Reports2352-48472021-11-01744374444Physico-chemical characterization of biomass, coal, and their chars using kinetics and electrochemistryKazuhiro Kumabe0Masafumi Chishima1Hiroshi Moritomi2Corresponding author.; Environmental and Renewable Energy Systems Division, Graduate School of Engineering, Gifu University, 1-1 Yanagido, Gifu 501-1193, JapanEnvironmental and Renewable Energy Systems Division, Graduate School of Engineering, Gifu University, 1-1 Yanagido, Gifu 501-1193, JapanEnvironmental and Renewable Energy Systems Division, Graduate School of Engineering, Gifu University, 1-1 Yanagido, Gifu 501-1193, JapanThe supply of sustainable and distributed energy becomes a concern. In this study, physico-chemical characterizations of coffee grounds, raw wood, composting sewage sludge, and raw comparable coal, as well as their chars were performed using carbonization/combustion kinetics and electrochemistry in order to promote the supply of sustainable and distributed energy. The carbonization kinetics of coffee grounds were faster than those of raw wood, composting sewage sludge, and raw coal because of the higher content of volatiles and potassium. The specific surface area of the wood char with steam activation was larger than those of the other chars, and that of the coffee grounds char with steam activation was also relatively larger. The graphitization degree of the wood char was similar to that of the coal char. The average potential of a direct carbon fuel cell (DCFC) using the composting sewage sludge char was higher than that of the other chars. Thus, the coffee grounds, wood, and composting sewage sludge chars may be better candidates for use as an adsorbent, heat source, and DCFC fuel, respectively.http://www.sciencedirect.com/science/article/pii/S2352484721004972BiomassCoalCharPhysico-chemical characterizationKineticsElectrochemistry
spellingShingle Kazuhiro Kumabe
Masafumi Chishima
Hiroshi Moritomi
Physico-chemical characterization of biomass, coal, and their chars using kinetics and electrochemistry
Energy Reports
Biomass
Coal
Char
Physico-chemical characterization
Kinetics
Electrochemistry
title Physico-chemical characterization of biomass, coal, and their chars using kinetics and electrochemistry
title_full Physico-chemical characterization of biomass, coal, and their chars using kinetics and electrochemistry
title_fullStr Physico-chemical characterization of biomass, coal, and their chars using kinetics and electrochemistry
title_full_unstemmed Physico-chemical characterization of biomass, coal, and their chars using kinetics and electrochemistry
title_short Physico-chemical characterization of biomass, coal, and their chars using kinetics and electrochemistry
title_sort physico chemical characterization of biomass coal and their chars using kinetics and electrochemistry
topic Biomass
Coal
Char
Physico-chemical characterization
Kinetics
Electrochemistry
url http://www.sciencedirect.com/science/article/pii/S2352484721004972
work_keys_str_mv AT kazuhirokumabe physicochemicalcharacterizationofbiomasscoalandtheircharsusingkineticsandelectrochemistry
AT masafumichishima physicochemicalcharacterizationofbiomasscoalandtheircharsusingkineticsandelectrochemistry
AT hiroshimoritomi physicochemicalcharacterizationofbiomasscoalandtheircharsusingkineticsandelectrochemistry