Production of solid acid catalyst using waste cigarette filters for esterification.

Teixeira, Leonan L A; Araujo, Rayanne O; Santos, Jamily L; Guimaraes, Mariana N; Ribeiro, Victoria M L; Pocrifka, Leandro A; Tenório, Jorge Alberto S; de Araujo, Joyce R; de Oliveira, Sanair M; do Nascimento Batista, Luciano; de Souza, Luiz K C

Teixeira, Leonan L A; Araujo, Rayanne O; Santos, Jamily L; Guimaraes, Mariana N; Ribeiro, Victoria M L; Pocrifka, Leandro A; Tenório, Jorge Alberto S; de Araujo, Joyce R; de Oliveira, Sanair M; do Nascimento Batista, Luciano; de Souza, Luiz K C.

Afiliação

Teixeira LLA; Department of Chemistry, Federal University of Amazonas, Manaus, AM, Brazil.
Araujo RO; Coordination of Technology and Innovation, National Institute for Amazon Research, Manaus, AM, Brazil.
Santos JL; Department of Chemistry, Federal University of Amazonas, Manaus, AM, Brazil.
Guimaraes MN; Department of Chemistry, Federal University of Amazonas, Manaus, AM, Brazil.
Ribeiro VML; Department of Chemistry, Federal University of Amazonas, Manaus, AM, Brazil.
Pocrifka LA; Department of Chemistry, Federal University of Amazonas, Manaus, AM, Brazil.
Tenório JAS; Department of Chemical Engineering, Polytechnic School of the University of São Paulo, São Paulo, SP, Brazil.
de Araujo JR; National Institute of Metrology, Quality and Technology, Rio de Janeiro, Brazil.
de Oliveira SM; National Institute of Metrology, Quality and Technology, Rio de Janeiro, Brazil.
do Nascimento Batista L; National Institute of Metrology, Quality and Technology, Rio de Janeiro, Brazil.
de Souza LKC; Department of Chemistry, Federal University of Amazonas, Manaus, AM, Brazil. ls@ufam.edu.br.

Environ Sci Pollut Res Int ; 31(5): 8072-8081, 2024 Jan.

Article em En | MEDLINE | ID: mdl-38175508

ABSTRACT

ABSTRACT

Cigarette filters were utilized as carbon source for the production of solid carbon acid catalysts. In this study, the process of carbonization and simultaneous sulfonation via hydrothermal treatment was employed. The catalysts were prepared by mixing cigarette filters and sulfuric acid at temperatures of 100, 150, and 190 °C for durations ranging from 2 to 8 h. It was observed that the highest conversion of oleic acid occurred when the catalyst was synthesized at 190 °C for 4 h. The optimized conditions for the esterification reaction using this catalyst included an oleic acid to methanol molar ratio of 112, a catalyst loading of 5 wt%, and a temperature of 100 °C for 1 h. Additionally, the catalyst was successfully reused four times without significantly impacting the reaction yield. These findings highlight a promising approach for the utilization of waste materials, with immediate implications for waste management practices and positive environmental impacts.

Assuntos

Biocombustíveis; Ácido Oleico; Esterificação; Temperatura; Catálise; Carbono

Palavras-chave

Catalyst; Cigarette filters; Esterification; Hydrothermal

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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Ácido Oleico / Biocombustíveis Idioma: En Revista: Environ Sci Pollut Res Int Assunto da revista: SAUDE AMBIENTAL / TOXICOLOGIA Ano de publicação: 2024 Tipo de documento: Article País de afiliação: Brasil País de publicação: Alemanha

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