Use of biochar from rice husk pyrolysis: assessment of reactivity in lime pastes

Biochar has unique properties such as its porous structure, specific surface area, and stable chemical properties. The rice husk is characterized by its high content of silica, and that during the pyrolysis process it generates a considerable amount of biochar that can be used in different processes...

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Autores principales:	Luisa F. Morales, Katherine Herrera, Julián E. López, Juan F. Saldarriaga
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Rice husk Pyrolysis Biochar Reactivity Lime pastes Science (General) Q1-390 Social sciences (General) H1-99
Acceso en línea:	https://doaj.org/article/f1d4539cffc243d39ed30db7d5adc857
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spelling	oai:doaj.org-article:f1d4539cffc243d39ed30db7d5adc8572021-12-02T05:03:09ZUse of biochar from rice husk pyrolysis: assessment of reactivity in lime pastes2405-844010.1016/j.heliyon.2021.e08423https://doaj.org/article/f1d4539cffc243d39ed30db7d5adc8572021-11-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2405844021025263https://doaj.org/toc/2405-8440Biochar has unique properties such as its porous structure, specific surface area, and stable chemical properties. The rice husk is characterized by its high content of silica, and that during the pyrolysis process it generates a considerable amount of biochar that can be used in different processes. The aim of this work is to evaluate several biochars from the pyrolysis process in the reactivity of lime pastes. For this, biochar has been obtained at four different temperatures (450, 500, 550 and 600 °C), and they have been characterized by XRF, XRD, ICP-EOS, and particle size distribution, to determine their phases and their chemical composition. Biochar has been replaced in lime pastes in different proportions (5, 10, 15, 20, 25 and 30%), and exposed to different curing times (1, 3, 7, 14, 28, 56, 90 and 180 days). It has been found that all the replacements show reactivity within the lime pastes and that the percentage of 25% in all the biochar tested could be an adequate replacement.Luisa F. MoralesKatherine HerreraJulián E. LópezJuan F. SaldarriagaElsevierarticleRice huskPyrolysisBiocharReactivityLime pastesScience (General)Q1-390Social sciences (General)H1-99ENHeliyon, Vol 7, Iss 11, Pp e08423- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Rice husk Pyrolysis Biochar Reactivity Lime pastes Science (General) Q1-390 Social sciences (General) H1-99
spellingShingle	Rice husk Pyrolysis Biochar Reactivity Lime pastes Science (General) Q1-390 Social sciences (General) H1-99 Luisa F. Morales Katherine Herrera Julián E. López Juan F. Saldarriaga Use of biochar from rice husk pyrolysis: assessment of reactivity in lime pastes
description	Biochar has unique properties such as its porous structure, specific surface area, and stable chemical properties. The rice husk is characterized by its high content of silica, and that during the pyrolysis process it generates a considerable amount of biochar that can be used in different processes. The aim of this work is to evaluate several biochars from the pyrolysis process in the reactivity of lime pastes. For this, biochar has been obtained at four different temperatures (450, 500, 550 and 600 °C), and they have been characterized by XRF, XRD, ICP-EOS, and particle size distribution, to determine their phases and their chemical composition. Biochar has been replaced in lime pastes in different proportions (5, 10, 15, 20, 25 and 30%), and exposed to different curing times (1, 3, 7, 14, 28, 56, 90 and 180 days). It has been found that all the replacements show reactivity within the lime pastes and that the percentage of 25% in all the biochar tested could be an adequate replacement.
format	article
author	Luisa F. Morales Katherine Herrera Julián E. López Juan F. Saldarriaga
author_facet	Luisa F. Morales Katherine Herrera Julián E. López Juan F. Saldarriaga
author_sort	Luisa F. Morales
title	Use of biochar from rice husk pyrolysis: assessment of reactivity in lime pastes
title_short	Use of biochar from rice husk pyrolysis: assessment of reactivity in lime pastes
title_full	Use of biochar from rice husk pyrolysis: assessment of reactivity in lime pastes
title_fullStr	Use of biochar from rice husk pyrolysis: assessment of reactivity in lime pastes
title_full_unstemmed	Use of biochar from rice husk pyrolysis: assessment of reactivity in lime pastes
title_sort	use of biochar from rice husk pyrolysis: assessment of reactivity in lime pastes
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/f1d4539cffc243d39ed30db7d5adc857
work_keys_str_mv	AT luisafmorales useofbiocharfromricehuskpyrolysisassessmentofreactivityinlimepastes AT katherineherrera useofbiocharfromricehuskpyrolysisassessmentofreactivityinlimepastes AT julianelopez useofbiocharfromricehuskpyrolysisassessmentofreactivityinlimepastes AT juanfsaldarriaga useofbiocharfromricehuskpyrolysisassessmentofreactivityinlimepastes
_version_	1718400747100438528

Use of biochar from rice husk pyrolysis: assessment of reactivity in lime pastes

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