Production of liquid compounds by co-pyrolysis of different pre-treated biomasses mixed with plastic wastes
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10400.9/3274 |
Resumo: | ABSTRACT: As an innovation to conventional biomass pyrolysis to produce liquid biofuels, different types of biomass wastes were pre-treated by autohydrolysis, prior to pyrolysis. Eucalyptus forestry waste, corn cobs agricultural residue, and miscanthus (an energy crop) were autohydrolysed. Autohydrolysis led to valuable sugar-rich stream that may be used in fermentation and to solids rich in lignin that were pyrolysed. Pyrolysis of autohydrolysed eucalyptus led to an increase in liquids yields of 24 % in relation to untreated eucalyptus, as autohydrolysis weakened initial macromolecular structure and thus helped chemical bonds breakdown during pyrolysis. However, similar pyrolysis liquid yields were obtained by autohydrolysed or untreated corn cobs and miscanthus, thus feedstock composition is an important issue. Nevertheless, the production of added value products by autohydrolysis may still justify this pre-treatment. Otherwise, more severe pre-treatments of these biomasses might improve co-pyrolysis as it happened with eucalyptus. As polyethylene (PE) is easier to pyrolyse than biomass and greatly favours the production of liquid hydrocarbons, autohydrolysed and untreated biomass was mixed with PE wastes to be used in co-pyrolysis. The rise of PE content in the blend clearly favoured the production of liquid products of pre-treated and untreated biomass. 75 %wt. of PE in the blend led to liquid yields of 72 %wt. for untreated eucalyptus and of 82 %wt. for autohydrolysed eucalyptus. |
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Production of liquid compounds by co-pyrolysis of different pre-treated biomasses mixed with plastic wastesWaste valorizationPlasticsBiomass wastesPyrolysisEnergetic valorisationEucalyptus residuesABSTRACT: As an innovation to conventional biomass pyrolysis to produce liquid biofuels, different types of biomass wastes were pre-treated by autohydrolysis, prior to pyrolysis. Eucalyptus forestry waste, corn cobs agricultural residue, and miscanthus (an energy crop) were autohydrolysed. Autohydrolysis led to valuable sugar-rich stream that may be used in fermentation and to solids rich in lignin that were pyrolysed. Pyrolysis of autohydrolysed eucalyptus led to an increase in liquids yields of 24 % in relation to untreated eucalyptus, as autohydrolysis weakened initial macromolecular structure and thus helped chemical bonds breakdown during pyrolysis. However, similar pyrolysis liquid yields were obtained by autohydrolysed or untreated corn cobs and miscanthus, thus feedstock composition is an important issue. Nevertheless, the production of added value products by autohydrolysis may still justify this pre-treatment. Otherwise, more severe pre-treatments of these biomasses might improve co-pyrolysis as it happened with eucalyptus. As polyethylene (PE) is easier to pyrolyse than biomass and greatly favours the production of liquid hydrocarbons, autohydrolysed and untreated biomass was mixed with PE wastes to be used in co-pyrolysis. The rise of PE content in the blend clearly favoured the production of liquid products of pre-treated and untreated biomass. 75 %wt. of PE in the blend led to liquid yields of 72 %wt. for untreated eucalyptus and of 82 %wt. for autohydrolysed eucalyptus.AIDIC - The Italian Association of Chemical EngineeringRepositório do LNEGPinto, FilomenaDuarte, Luís C.Carvalheiro, FlorbelaParadela, FilipeCosta, PaulaMarques, JoanaAndre, Rui N.Marques, PaulaCosta, DiogoSampaio, Bruno2020-05-22T14:22:08Z20192019-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.9/3274engPinto, Filomena... [et.al.] - Production of liquid compounds by co-pyrolysis of different pre-treated biomasses mixed with plastic wastes. In: Chemical Engineering Transactions, 2019, Vol. 76, p. 1393-13982283-921610.3303/CET1976233info: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:RCAAP2023-04-09T05:56:44Zoai:repositorio.lneg.pt:10400.9/3274Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T15:36:30.277442Repositório 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 |
Production of liquid compounds by co-pyrolysis of different pre-treated biomasses mixed with plastic wastes |
title |
Production of liquid compounds by co-pyrolysis of different pre-treated biomasses mixed with plastic wastes |
spellingShingle |
Production of liquid compounds by co-pyrolysis of different pre-treated biomasses mixed with plastic wastes Pinto, Filomena Waste valorization Plastics Biomass wastes Pyrolysis Energetic valorisation Eucalyptus residues |
title_short |
Production of liquid compounds by co-pyrolysis of different pre-treated biomasses mixed with plastic wastes |
title_full |
Production of liquid compounds by co-pyrolysis of different pre-treated biomasses mixed with plastic wastes |
title_fullStr |
Production of liquid compounds by co-pyrolysis of different pre-treated biomasses mixed with plastic wastes |
title_full_unstemmed |
Production of liquid compounds by co-pyrolysis of different pre-treated biomasses mixed with plastic wastes |
title_sort |
Production of liquid compounds by co-pyrolysis of different pre-treated biomasses mixed with plastic wastes |
author |
Pinto, Filomena |
author_facet |
Pinto, Filomena Duarte, Luís C. Carvalheiro, Florbela Paradela, Filipe Costa, Paula Marques, Joana Andre, Rui N. Marques, Paula Costa, Diogo Sampaio, Bruno |
author_role |
author |
author2 |
Duarte, Luís C. Carvalheiro, Florbela Paradela, Filipe Costa, Paula Marques, Joana Andre, Rui N. Marques, Paula Costa, Diogo Sampaio, Bruno |
author2_role |
author author author author author author author author author |
dc.contributor.none.fl_str_mv |
Repositório do LNEG |
dc.contributor.author.fl_str_mv |
Pinto, Filomena Duarte, Luís C. Carvalheiro, Florbela Paradela, Filipe Costa, Paula Marques, Joana Andre, Rui N. Marques, Paula Costa, Diogo Sampaio, Bruno |
dc.subject.por.fl_str_mv |
Waste valorization Plastics Biomass wastes Pyrolysis Energetic valorisation Eucalyptus residues |
topic |
Waste valorization Plastics Biomass wastes Pyrolysis Energetic valorisation Eucalyptus residues |
description |
ABSTRACT: As an innovation to conventional biomass pyrolysis to produce liquid biofuels, different types of biomass wastes were pre-treated by autohydrolysis, prior to pyrolysis. Eucalyptus forestry waste, corn cobs agricultural residue, and miscanthus (an energy crop) were autohydrolysed. Autohydrolysis led to valuable sugar-rich stream that may be used in fermentation and to solids rich in lignin that were pyrolysed. Pyrolysis of autohydrolysed eucalyptus led to an increase in liquids yields of 24 % in relation to untreated eucalyptus, as autohydrolysis weakened initial macromolecular structure and thus helped chemical bonds breakdown during pyrolysis. However, similar pyrolysis liquid yields were obtained by autohydrolysed or untreated corn cobs and miscanthus, thus feedstock composition is an important issue. Nevertheless, the production of added value products by autohydrolysis may still justify this pre-treatment. Otherwise, more severe pre-treatments of these biomasses might improve co-pyrolysis as it happened with eucalyptus. As polyethylene (PE) is easier to pyrolyse than biomass and greatly favours the production of liquid hydrocarbons, autohydrolysed and untreated biomass was mixed with PE wastes to be used in co-pyrolysis. The rise of PE content in the blend clearly favoured the production of liquid products of pre-treated and untreated biomass. 75 %wt. of PE in the blend led to liquid yields of 72 %wt. for untreated eucalyptus and of 82 %wt. for autohydrolysed eucalyptus. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019 2019-01-01T00:00:00Z 2020-05-22T14:22:08Z |
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/10400.9/3274 |
url |
http://hdl.handle.net/10400.9/3274 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Pinto, Filomena... [et.al.] - Production of liquid compounds by co-pyrolysis of different pre-treated biomasses mixed with plastic wastes. In: Chemical Engineering Transactions, 2019, Vol. 76, p. 1393-1398 2283-9216 10.3303/CET1976233 |
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 |
AIDIC - The Italian Association of Chemical Engineering |
publisher.none.fl_str_mv |
AIDIC - The Italian Association of Chemical Engineering |
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 |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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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 |
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1799130231370416128 |