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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Nature Portfolio
2021
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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) |
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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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