Статья

Colored cotton crop wastes valorization through pyrolysis: a study of energetic characterization and analytical Py-GC/MS

Janduir E. SilvaCentro de Tecnologia, Programa de Pós-graduação em Engenharia Química, Universidade Federal do Rio Grande do Norte, Natal, RN, CEP: 59078-970, Brazil. [email protected]Joemil Oliveira de DeusCentro de Tecnologia, Dep Eng. Química, Universidade Federal do Rio Grande do Norte, Natal, RN, CEP: 59078-970, BrazilGuilherme Quintela CalixtoCentro de Tecnologia, Programa de Pós-graduação em Engenharia Química, Universidade Federal do Rio Grande do Norte, Natal, RN, CEP: 59078-970, BrazilDulce Maria de Araújo MeloCentro de Ciências Exatas e da Terra, Instituto de Química, Universidade Federal do Rio Grande do Norte, Natal, RN, CEP: 59078-970, BrazilM. A. F. MeloCentro de Tecnologia, Programa de Pós-graduação em Engenharia Química, Universidade Federal do Rio Grande do Norte, Natal, RN, CEP: 59078-970, BrazilVital C. B. JúniorEscola Agrícola de Jundiaí, Universidade Federal do Rio Grande do Norte, Macaíba, RN, CEP: 59280-000, BrazilBruna M. E. ChagasCentro de Tecnologia, Programa de Pós-graduação em Engenharia Química, Universidade Federal do Rio Grande do Norte, Natal, RN, CEP: 59078-970, BrazilEveraldo S. MedeirosEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA), Campina Grande, PB, CEP: 58428-095, BrazilRenata Martins BragaEscola Agrícola de Jundiaí, Universidade Federal do Rio Grande do Norte, Macaíba, RN, CEP: 59280-000, Brazil

2024en

ABI

Аннотация

The present work aimed to study different parts of colored cotton waste through energetic characterization and analytical flash pyrolysis. Stalks and bolls of BRS cotton cultivars from Sementes do Brasil (Green, Ruby, Topaz and Jade) were studied, using white cotton (BRS 286) as a comparison. The energetic potential of biomass was evaluated by bulk density, High Heating Value (HHV), proximate and ultimate analysis, compositional and thermogravimetric analysis (TGA). Pyrolysis was performed in a micro-pyrolyzer and the products were identified by gas chromatography and mass spectroscopy (Py-GC/MS). The results indicated a significant energetic potential, suggesting that can be used as an alternative energy source for thermochemical processes. The results of conventional pyrolysis indicated the presence of oxygenated compounds of different organic groups: aldehydes, ketones, phenols, furans and ethers, characteristic of the decomposition of lignocellulosic materials. Light organic acids in the C1-C4 range stood out the most, followed by phenols that appeared in a considerable proportion. Finally, it is concluded that the energy potential and pyrolysis products of the different parts (stalks and bolls) of colored cotton waste can be used to generate bioenergy and various chemical compounds of plant origin from green chemistry.

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Идентификаторы

DOI: 10.1038/s41598-024-60019-4

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