Life cycle assessment of advanced bioethanol production from pulp and paper sludge

Detalhes bibliográficos
Autor(a) principal: Sebastião, Diogo
Data de Publicação: 2016
Outros Autores: Gonçalves, Margarida S., Marques, Susana, Fonseca, César, Gírio, Francisco, Oliveira, Ana Cristina, Matos, Cristina T.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.9/3017
Resumo: This work evaluates the environmental performance of using pulp and paper sludge as feedstock for the production of second generation ethanol. An ethanol plant for converting 5400 tons of dry sludge/year was modelled and evaluated using a cradle-to-gate life cycle assessment approach. The sludge is a burden for pulp and paper mills that is mainly disposed in landfilling. The studied system allows for the valorisation of the waste, which due to its high polysaccharide content is a valuable feedstock for bioethanol production. Eleven impact categories were analysed and the results showed that enzymatic hydrolysis and neutralisation of the CaCO3 are the environmental hotspots of the system contributing up to 85% to the overall impacts. Two optimisation scenarios were evaluated: (1) using a reduced HCl amount in the neutralisation stage and (2) co-fermentation of xylose and glucose, for maximal ethanol yield. Both scenarios displayed significant environmental impact improvements.
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spelling Life cycle assessment of advanced bioethanol production from pulp and paper sludgeBioethanolWaste valorizationLife cycle assessmentThis work evaluates the environmental performance of using pulp and paper sludge as feedstock for the production of second generation ethanol. An ethanol plant for converting 5400 tons of dry sludge/year was modelled and evaluated using a cradle-to-gate life cycle assessment approach. The sludge is a burden for pulp and paper mills that is mainly disposed in landfilling. The studied system allows for the valorisation of the waste, which due to its high polysaccharide content is a valuable feedstock for bioethanol production. Eleven impact categories were analysed and the results showed that enzymatic hydrolysis and neutralisation of the CaCO3 are the environmental hotspots of the system contributing up to 85% to the overall impacts. Two optimisation scenarios were evaluated: (1) using a reduced HCl amount in the neutralisation stage and (2) co-fermentation of xylose and glucose, for maximal ethanol yield. Both scenarios displayed significant environmental impact improvements.ElsevierRepositório do LNEGSebastião, DiogoGonçalves, Margarida S.Marques, SusanaFonseca, CésarGírio, FranciscoOliveira, Ana CristinaMatos, Cristina T.2016-06-23T11:06:40Z20162016-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.9/3017engSebastião, D.; Gonçalves, M.S.; Marques, S. [et.al.]. - Life cycle assessment of advanced bioethanol production from pulp and paper sludge. In: Bioresource technology, 2016, Vol. 208, p. 100-1090960-852410.1016/j.biortech.2016.02.049info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2022-12-11T04:55:17Zoai:repositorio.lneg.pt:10400.9/3017Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T15:36:10.675267Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Life cycle assessment of advanced bioethanol production from pulp and paper sludge
title Life cycle assessment of advanced bioethanol production from pulp and paper sludge
spellingShingle Life cycle assessment of advanced bioethanol production from pulp and paper sludge
Sebastião, Diogo
Bioethanol
Waste valorization
Life cycle assessment
title_short Life cycle assessment of advanced bioethanol production from pulp and paper sludge
title_full Life cycle assessment of advanced bioethanol production from pulp and paper sludge
title_fullStr Life cycle assessment of advanced bioethanol production from pulp and paper sludge
title_full_unstemmed Life cycle assessment of advanced bioethanol production from pulp and paper sludge
title_sort Life cycle assessment of advanced bioethanol production from pulp and paper sludge
author Sebastião, Diogo
author_facet Sebastião, Diogo
Gonçalves, Margarida S.
Marques, Susana
Fonseca, César
Gírio, Francisco
Oliveira, Ana Cristina
Matos, Cristina T.
author_role author
author2 Gonçalves, Margarida S.
Marques, Susana
Fonseca, César
Gírio, Francisco
Oliveira, Ana Cristina
Matos, Cristina T.
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Repositório do LNEG
dc.contributor.author.fl_str_mv Sebastião, Diogo
Gonçalves, Margarida S.
Marques, Susana
Fonseca, César
Gírio, Francisco
Oliveira, Ana Cristina
Matos, Cristina T.
dc.subject.por.fl_str_mv Bioethanol
Waste valorization
Life cycle assessment
topic Bioethanol
Waste valorization
Life cycle assessment
description This work evaluates the environmental performance of using pulp and paper sludge as feedstock for the production of second generation ethanol. An ethanol plant for converting 5400 tons of dry sludge/year was modelled and evaluated using a cradle-to-gate life cycle assessment approach. The sludge is a burden for pulp and paper mills that is mainly disposed in landfilling. The studied system allows for the valorisation of the waste, which due to its high polysaccharide content is a valuable feedstock for bioethanol production. Eleven impact categories were analysed and the results showed that enzymatic hydrolysis and neutralisation of the CaCO3 are the environmental hotspots of the system contributing up to 85% to the overall impacts. Two optimisation scenarios were evaluated: (1) using a reduced HCl amount in the neutralisation stage and (2) co-fermentation of xylose and glucose, for maximal ethanol yield. Both scenarios displayed significant environmental impact improvements.
publishDate 2016
dc.date.none.fl_str_mv 2016-06-23T11:06:40Z
2016
2016-01-01T00:00:00Z
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://hdl.handle.net/10400.9/3017
url http://hdl.handle.net/10400.9/3017
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Sebastião, D.; Gonçalves, M.S.; Marques, S. [et.al.]. - Life cycle assessment of advanced bioethanol production from pulp and paper sludge. In: Bioresource technology, 2016, Vol. 208, p. 100-109
0960-8524
10.1016/j.biortech.2016.02.049
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv
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