Colored cotton wastes valuation through thermal and catalytic reforming of pyrolysis vapors (Py-GC/MS)

Abstract This study aims to analyze the products of the catalytic pyrolysis of naturally colored cotton residues, type BRS (seeds from Brazil), called BRS-Verde, BRS-Rubi, BRS-Topázio and BRS-Jade. The energy characterization of biomass was evaluated through ultimate and proximate analysis, higher h...

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Autores principales: Janduir Egito da Silva, Guilherme Quintela Calixto, Rodolfo Luiz Bezerra de Araújo Medeiros, Marcus Antônio de Freitas Melo, Dulce Maria de Araújo Melo, Luiz Paulo de Carvalho, Renata Martins Braga
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Publicado: Nature Portfolio 2021
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spelling oai:doaj.org-article:dd1bf902f08c4dc3b6be5d51358801622021-12-02T16:27:45ZColored cotton wastes valuation through thermal and catalytic reforming of pyrolysis vapors (Py-GC/MS)10.1038/s41598-021-95043-12045-2322https://doaj.org/article/dd1bf902f08c4dc3b6be5d51358801622021-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-95043-1https://doaj.org/toc/2045-2322Abstract This study aims to analyze the products of the catalytic pyrolysis of naturally colored cotton residues, type BRS (seeds from Brazil), called BRS-Verde, BRS-Rubi, BRS-Topázio and BRS-Jade. The energy characterization of biomass was evaluated through ultimate and proximate analysis, higher heating value, cellulose, hemicellulose and lignin content, thermogravimetric analysis and apparent density. Analytical pyrolysis was performed at 500 °C in an analytical pyrolyzer from CDS Analytical connected to a gas chromatograph coupled to the mass spectrometer (GC/MS). The pyrolysis vapors were reformed at 300 and 500 °C through thermal and catalytic cracking with zeolites (ZSM-5 and HZSM-5). It has been noticed that pyrolysis vapor reforming at 500 °C promoted partial deoxygenation and cracking reactions, while the catalytic reforming showed better results for the product deoxygenation. The catalyst reforming of pyrolysis products, especially using HZSM-5 at 500 °C, promoted the formation of monoaromatics such as benzene, toluene, xylene and styrene, which are important precursors of polymers, solvents and biofuels. The main influence on the yields of these aromatic products is due to the catalytic activity of ZSM-5 favored by increased temperature that promotes cracking reactions due expanded zeolites channels.Janduir Egito da SilvaGuilherme Quintela CalixtoRodolfo Luiz Bezerra de Araújo MedeirosMarcus Antônio de Freitas MeloDulce Maria de Araújo MeloLuiz Paulo de CarvalhoRenata Martins BragaNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Janduir Egito da Silva
Guilherme Quintela Calixto
Rodolfo Luiz Bezerra de Araújo Medeiros
Marcus Antônio de Freitas Melo
Dulce Maria de Araújo Melo
Luiz Paulo de Carvalho
Renata Martins Braga
Colored cotton wastes valuation through thermal and catalytic reforming of pyrolysis vapors (Py-GC/MS)
description Abstract This study aims to analyze the products of the catalytic pyrolysis of naturally colored cotton residues, type BRS (seeds from Brazil), called BRS-Verde, BRS-Rubi, BRS-Topázio and BRS-Jade. The energy characterization of biomass was evaluated through ultimate and proximate analysis, higher heating value, cellulose, hemicellulose and lignin content, thermogravimetric analysis and apparent density. Analytical pyrolysis was performed at 500 °C in an analytical pyrolyzer from CDS Analytical connected to a gas chromatograph coupled to the mass spectrometer (GC/MS). The pyrolysis vapors were reformed at 300 and 500 °C through thermal and catalytic cracking with zeolites (ZSM-5 and HZSM-5). It has been noticed that pyrolysis vapor reforming at 500 °C promoted partial deoxygenation and cracking reactions, while the catalytic reforming showed better results for the product deoxygenation. The catalyst reforming of pyrolysis products, especially using HZSM-5 at 500 °C, promoted the formation of monoaromatics such as benzene, toluene, xylene and styrene, which are important precursors of polymers, solvents and biofuels. The main influence on the yields of these aromatic products is due to the catalytic activity of ZSM-5 favored by increased temperature that promotes cracking reactions due expanded zeolites channels.
format article
author Janduir Egito da Silva
Guilherme Quintela Calixto
Rodolfo Luiz Bezerra de Araújo Medeiros
Marcus Antônio de Freitas Melo
Dulce Maria de Araújo Melo
Luiz Paulo de Carvalho
Renata Martins Braga
author_facet Janduir Egito da Silva
Guilherme Quintela Calixto
Rodolfo Luiz Bezerra de Araújo Medeiros
Marcus Antônio de Freitas Melo
Dulce Maria de Araújo Melo
Luiz Paulo de Carvalho
Renata Martins Braga
author_sort Janduir Egito da Silva
title Colored cotton wastes valuation through thermal and catalytic reforming of pyrolysis vapors (Py-GC/MS)
title_short Colored cotton wastes valuation through thermal and catalytic reforming of pyrolysis vapors (Py-GC/MS)
title_full Colored cotton wastes valuation through thermal and catalytic reforming of pyrolysis vapors (Py-GC/MS)
title_fullStr Colored cotton wastes valuation through thermal and catalytic reforming of pyrolysis vapors (Py-GC/MS)
title_full_unstemmed Colored cotton wastes valuation through thermal and catalytic reforming of pyrolysis vapors (Py-GC/MS)
title_sort colored cotton wastes valuation through thermal and catalytic reforming of pyrolysis vapors (py-gc/ms)
publisher Nature Portfolio
publishDate 2021
url https://doaj.org/article/dd1bf902f08c4dc3b6be5d5135880162
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