Hydrogen production in anaerobic continuous flow reactor using crude glycerol from biodiesel production
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1590/S1517-707620210002.1268 http://hdl.handle.net/11449/210807 |
Resumo: | The depletion of oil reserves and the growing concern about climate change have accelerated new research to obtain renewable energy. The production of biogas through anaerobic digestion has proved to be a great option, not only for energy production, but also for the proper management of organic waste. Biodiesel had its production increased in several countries as it is a renewable and biodegradable fuel; moreover, it does not require major modifications for its use in diesel engines. However, it is largely obtained from the transesterification of vegetable oils and animal fat, where its yield is 9 volumes of biodiesel to 1 volume of glycerol. The crude glycerol has a low degree of purity, becoming an inexpensive raw material with the potential to produce renewable energy, mainly hydrogen gas (H-2) and methane (CH4). In this sense, the objectives of this study were: to operate a horizontal anaerobic reactor with fixed bed (HARFB), with continuous feeding and to determine its start in the production of H-2 from residual biodiesel glycerol co-digested in sanitary sewage in the phases from: Startup, Test 1 and Test 2. During the Startup and Test 1 assay, the affluent was constituted by 99% sewage 1% crude glycerol (v/v) and 1.5% crude glycerol in Test 2. At Startup and Test 1, production averages of 1 mol H-2 m(3) d(-1) and 3.2 moles H-2 m(3) d(-1) were verified, respectively. The highest daily production achieved was 11.34 moles H-2 m(3) d(-1) in Test 2 with an average generation of volatile fatty acids (VFA) of 3414.0 mg L-1. Such results were promising and new advances with higher proportions of crude glycerol and buffering agents could avoid large pH variations, thus enabling higher and more stable generations of H-2 in continuous reactors. |
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Hydrogen production in anaerobic continuous flow reactor using crude glycerol from biodiesel productionBiogasSanitary sewageContinuous ReactorThe depletion of oil reserves and the growing concern about climate change have accelerated new research to obtain renewable energy. The production of biogas through anaerobic digestion has proved to be a great option, not only for energy production, but also for the proper management of organic waste. Biodiesel had its production increased in several countries as it is a renewable and biodegradable fuel; moreover, it does not require major modifications for its use in diesel engines. However, it is largely obtained from the transesterification of vegetable oils and animal fat, where its yield is 9 volumes of biodiesel to 1 volume of glycerol. The crude glycerol has a low degree of purity, becoming an inexpensive raw material with the potential to produce renewable energy, mainly hydrogen gas (H-2) and methane (CH4). In this sense, the objectives of this study were: to operate a horizontal anaerobic reactor with fixed bed (HARFB), with continuous feeding and to determine its start in the production of H-2 from residual biodiesel glycerol co-digested in sanitary sewage in the phases from: Startup, Test 1 and Test 2. During the Startup and Test 1 assay, the affluent was constituted by 99% sewage 1% crude glycerol (v/v) and 1.5% crude glycerol in Test 2. At Startup and Test 1, production averages of 1 mol H-2 m(3) d(-1) and 3.2 moles H-2 m(3) d(-1) were verified, respectively. The highest daily production achieved was 11.34 moles H-2 m(3) d(-1) in Test 2 with an average generation of volatile fatty acids (VFA) of 3414.0 mg L-1. Such results were promising and new advances with higher proportions of crude glycerol and buffering agents could avoid large pH variations, thus enabling higher and more stable generations of H-2 in continuous reactors.UNESP, Inst Quim, Rua Prof Francisco Degni 55, BR-14800900 Araraquara, SP, BrazilUNESP, IPBEN, Rua 10,2527, BR-13500230 Rio Claro, SP, BrazilUniv Sao Paulo, USP, Lab Proc Biol LPB, Av Joao Dagnone 1100, BR-13563120 Sao Carlos, SP, BrazilUniv Araraquara, Uniara Programa Posgrad Desenvolvimento Terr & Me, Rua Carlos Gomes 1338, BR-14801340 Araraquara, SP, BrazilUNESP, Inst Quim, Rua Prof Francisco Degni 55, BR-14800900 Araraquara, SP, BrazilUNESP, IPBEN, Rua 10,2527, BR-13500230 Rio Claro, SP, BrazilUniv Fed Rio De Janeiro, Lab HidrogenioUniversidade Estadual Paulista (Unesp)Universidade de São Paulo (USP)Univ AraraquaraAdames, Luan Vieira [UNESP]Pires, Lorena Oliveira [UNESP]Tallarico Adorno, Maria AngelaMaintinguer, Sandra Imaculada [UNESP]2021-06-26T08:03:29Z2021-06-26T08:03:29Z2021-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article11application/pdfhttp://dx.doi.org/10.1590/S1517-707620210002.1268Materia-rio De Janeiro. Rio De Janeiro Rj: Univ Fed Rio De Janeiro, Lab Hidrogenio, v. 26, n. 2, 11 p., 2021.1517-7076http://hdl.handle.net/11449/21080710.1590/S1517-707620210002.1268S1517-70762021000200314WOS:000657511800016S1517-70762021000200314.pdfWeb of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPporMateria-rio De Janeiroinfo:eu-repo/semantics/openAccess2023-10-19T06:08:03Zoai:repositorio.unesp.br:11449/210807Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-10-19T06:08:03Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Hydrogen production in anaerobic continuous flow reactor using crude glycerol from biodiesel production |
title |
Hydrogen production in anaerobic continuous flow reactor using crude glycerol from biodiesel production |
spellingShingle |
Hydrogen production in anaerobic continuous flow reactor using crude glycerol from biodiesel production Adames, Luan Vieira [UNESP] Biogas Sanitary sewage Continuous Reactor |
title_short |
Hydrogen production in anaerobic continuous flow reactor using crude glycerol from biodiesel production |
title_full |
Hydrogen production in anaerobic continuous flow reactor using crude glycerol from biodiesel production |
title_fullStr |
Hydrogen production in anaerobic continuous flow reactor using crude glycerol from biodiesel production |
title_full_unstemmed |
Hydrogen production in anaerobic continuous flow reactor using crude glycerol from biodiesel production |
title_sort |
Hydrogen production in anaerobic continuous flow reactor using crude glycerol from biodiesel production |
author |
Adames, Luan Vieira [UNESP] |
author_facet |
Adames, Luan Vieira [UNESP] Pires, Lorena Oliveira [UNESP] Tallarico Adorno, Maria Angela Maintinguer, Sandra Imaculada [UNESP] |
author_role |
author |
author2 |
Pires, Lorena Oliveira [UNESP] Tallarico Adorno, Maria Angela Maintinguer, Sandra Imaculada [UNESP] |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Universidade de São Paulo (USP) Univ Araraquara |
dc.contributor.author.fl_str_mv |
Adames, Luan Vieira [UNESP] Pires, Lorena Oliveira [UNESP] Tallarico Adorno, Maria Angela Maintinguer, Sandra Imaculada [UNESP] |
dc.subject.por.fl_str_mv |
Biogas Sanitary sewage Continuous Reactor |
topic |
Biogas Sanitary sewage Continuous Reactor |
description |
The depletion of oil reserves and the growing concern about climate change have accelerated new research to obtain renewable energy. The production of biogas through anaerobic digestion has proved to be a great option, not only for energy production, but also for the proper management of organic waste. Biodiesel had its production increased in several countries as it is a renewable and biodegradable fuel; moreover, it does not require major modifications for its use in diesel engines. However, it is largely obtained from the transesterification of vegetable oils and animal fat, where its yield is 9 volumes of biodiesel to 1 volume of glycerol. The crude glycerol has a low degree of purity, becoming an inexpensive raw material with the potential to produce renewable energy, mainly hydrogen gas (H-2) and methane (CH4). In this sense, the objectives of this study were: to operate a horizontal anaerobic reactor with fixed bed (HARFB), with continuous feeding and to determine its start in the production of H-2 from residual biodiesel glycerol co-digested in sanitary sewage in the phases from: Startup, Test 1 and Test 2. During the Startup and Test 1 assay, the affluent was constituted by 99% sewage 1% crude glycerol (v/v) and 1.5% crude glycerol in Test 2. At Startup and Test 1, production averages of 1 mol H-2 m(3) d(-1) and 3.2 moles H-2 m(3) d(-1) were verified, respectively. The highest daily production achieved was 11.34 moles H-2 m(3) d(-1) in Test 2 with an average generation of volatile fatty acids (VFA) of 3414.0 mg L-1. Such results were promising and new advances with higher proportions of crude glycerol and buffering agents could avoid large pH variations, thus enabling higher and more stable generations of H-2 in continuous reactors. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-06-26T08:03:29Z 2021-06-26T08:03:29Z 2021-01-01 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1590/S1517-707620210002.1268 Materia-rio De Janeiro. Rio De Janeiro Rj: Univ Fed Rio De Janeiro, Lab Hidrogenio, v. 26, n. 2, 11 p., 2021. 1517-7076 http://hdl.handle.net/11449/210807 10.1590/S1517-707620210002.1268 S1517-70762021000200314 WOS:000657511800016 S1517-70762021000200314.pdf |
url |
http://dx.doi.org/10.1590/S1517-707620210002.1268 http://hdl.handle.net/11449/210807 |
identifier_str_mv |
Materia-rio De Janeiro. Rio De Janeiro Rj: Univ Fed Rio De Janeiro, Lab Hidrogenio, v. 26, n. 2, 11 p., 2021. 1517-7076 10.1590/S1517-707620210002.1268 S1517-70762021000200314 WOS:000657511800016 S1517-70762021000200314.pdf |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
Materia-rio De Janeiro |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
11 application/pdf |
dc.publisher.none.fl_str_mv |
Univ Fed Rio De Janeiro, Lab Hidrogenio |
publisher.none.fl_str_mv |
Univ Fed Rio De Janeiro, Lab Hidrogenio |
dc.source.none.fl_str_mv |
Web of Science reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
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1803649461645213696 |