Insight into the high-pressure CO2 pre-treatment of sugarcane bagasse for a delivery of upgradable sugars
Autor(a) principal: | |
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Data de Publicação: | 2018 |
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/10400.9/3053 |
Resumo: | ABSTRACT: This work provides an insight into sugarcane bagasse pre-treatment carried out with greener and more sustainable CO2/H2O system. Temperatures and residence times at a fixed initial CO2 pressure were studied to verify their effects on pre-treatment efficiency with regard to the chemical composition of both water-soluble and water-insoluble fractions as well as to the susceptibility of the latter to enzymatic hydrolysis at high total solids. Also, trends in enzymatic hydrolysis were analysed in function of biomass crystallinity. This work provides an integrated approach in the analysis of upgradable sugars that are released as a result of pre-treatment and enzymatic hydrolysis. At optimal pre-treatment conditions, 17.2 g.L-1 sugars were released in the water-soluble fraction mainly as pentoses in monomeric and oligomeric forms. The enzymatic hydrolysis of solids produced at these pre-treatment conditions gave 76.8 g.L-1 glucose in the substrate hydrolysate. The overall sugar yield delivered in both pre-treatment and enzymatic hydrolysis was 73,9 mol%. These results were compared to the chemical effect of hydrothermal and/or physico-chemical effects of N-2-aided hydrothermal processes and showed that the greener processing of biomass pre-treatment with CO2 is advantageous for the integrated valorisation of industrial residues and delivery of upgradable sugars within the biorefinery concept. |
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Insight into the high-pressure CO2 pre-treatment of sugarcane bagasse for a delivery of upgradable sugarsBiomassBioenergyCarbon dioxidePre-treatmentEnzymatic hydrolysisABSTRACT: This work provides an insight into sugarcane bagasse pre-treatment carried out with greener and more sustainable CO2/H2O system. Temperatures and residence times at a fixed initial CO2 pressure were studied to verify their effects on pre-treatment efficiency with regard to the chemical composition of both water-soluble and water-insoluble fractions as well as to the susceptibility of the latter to enzymatic hydrolysis at high total solids. Also, trends in enzymatic hydrolysis were analysed in function of biomass crystallinity. This work provides an integrated approach in the analysis of upgradable sugars that are released as a result of pre-treatment and enzymatic hydrolysis. At optimal pre-treatment conditions, 17.2 g.L-1 sugars were released in the water-soluble fraction mainly as pentoses in monomeric and oligomeric forms. The enzymatic hydrolysis of solids produced at these pre-treatment conditions gave 76.8 g.L-1 glucose in the substrate hydrolysate. The overall sugar yield delivered in both pre-treatment and enzymatic hydrolysis was 73,9 mol%. These results were compared to the chemical effect of hydrothermal and/or physico-chemical effects of N-2-aided hydrothermal processes and showed that the greener processing of biomass pre-treatment with CO2 is advantageous for the integrated valorisation of industrial residues and delivery of upgradable sugars within the biorefinery concept.ElsevierRepositório do LNEGFockink, Douglas, H.Morais, Ana Rita C.Ramos, Luiz PereiraLukasik, Rafal M.2018-09-18T10:36:41Z2018-01-01T00:00:00Z2018-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.9/3053engFockink, Douglas H.; Morais, Ana R.C.; Ramos, Luiz P.; Lukasik, Rafal M. - Insight into the high-pressure CO2 pre-treatment of sugarcane bagasse for a delivery of upgradable sugars. In: Energy, 2018, Vol. 151, p. 536-5440360-5442info: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:RCAAP2022-09-06T12:28:24Zoai:repositorio.lneg.pt:10400.9/3053Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T15:36:12.737023Repositório 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 |
Insight into the high-pressure CO2 pre-treatment of sugarcane bagasse for a delivery of upgradable sugars |
title |
Insight into the high-pressure CO2 pre-treatment of sugarcane bagasse for a delivery of upgradable sugars |
spellingShingle |
Insight into the high-pressure CO2 pre-treatment of sugarcane bagasse for a delivery of upgradable sugars Fockink, Douglas, H. Biomass Bioenergy Carbon dioxide Pre-treatment Enzymatic hydrolysis |
title_short |
Insight into the high-pressure CO2 pre-treatment of sugarcane bagasse for a delivery of upgradable sugars |
title_full |
Insight into the high-pressure CO2 pre-treatment of sugarcane bagasse for a delivery of upgradable sugars |
title_fullStr |
Insight into the high-pressure CO2 pre-treatment of sugarcane bagasse for a delivery of upgradable sugars |
title_full_unstemmed |
Insight into the high-pressure CO2 pre-treatment of sugarcane bagasse for a delivery of upgradable sugars |
title_sort |
Insight into the high-pressure CO2 pre-treatment of sugarcane bagasse for a delivery of upgradable sugars |
author |
Fockink, Douglas, H. |
author_facet |
Fockink, Douglas, H. Morais, Ana Rita C. Ramos, Luiz Pereira Lukasik, Rafal M. |
author_role |
author |
author2 |
Morais, Ana Rita C. Ramos, Luiz Pereira Lukasik, Rafal M. |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Repositório do LNEG |
dc.contributor.author.fl_str_mv |
Fockink, Douglas, H. Morais, Ana Rita C. Ramos, Luiz Pereira Lukasik, Rafal M. |
dc.subject.por.fl_str_mv |
Biomass Bioenergy Carbon dioxide Pre-treatment Enzymatic hydrolysis |
topic |
Biomass Bioenergy Carbon dioxide Pre-treatment Enzymatic hydrolysis |
description |
ABSTRACT: This work provides an insight into sugarcane bagasse pre-treatment carried out with greener and more sustainable CO2/H2O system. Temperatures and residence times at a fixed initial CO2 pressure were studied to verify their effects on pre-treatment efficiency with regard to the chemical composition of both water-soluble and water-insoluble fractions as well as to the susceptibility of the latter to enzymatic hydrolysis at high total solids. Also, trends in enzymatic hydrolysis were analysed in function of biomass crystallinity. This work provides an integrated approach in the analysis of upgradable sugars that are released as a result of pre-treatment and enzymatic hydrolysis. At optimal pre-treatment conditions, 17.2 g.L-1 sugars were released in the water-soluble fraction mainly as pentoses in monomeric and oligomeric forms. The enzymatic hydrolysis of solids produced at these pre-treatment conditions gave 76.8 g.L-1 glucose in the substrate hydrolysate. The overall sugar yield delivered in both pre-treatment and enzymatic hydrolysis was 73,9 mol%. These results were compared to the chemical effect of hydrothermal and/or physico-chemical effects of N-2-aided hydrothermal processes and showed that the greener processing of biomass pre-treatment with CO2 is advantageous for the integrated valorisation of industrial residues and delivery of upgradable sugars within the biorefinery concept. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-09-18T10:36:41Z 2018-01-01T00:00:00Z 2018-01-01T00:00:00Z |
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/10400.9/3053 |
url |
http://hdl.handle.net/10400.9/3053 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Fockink, Douglas H.; Morais, Ana R.C.; Ramos, Luiz P.; Lukasik, Rafal M. - Insight into the high-pressure CO2 pre-treatment of sugarcane bagasse for a delivery of upgradable sugars. In: Energy, 2018, Vol. 151, p. 536-544 0360-5442 |
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 |
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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 |
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1799130228046430208 |