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PET-modified red mud as catalysts for oxidative desulfurization reactions.
do Prado, Nayara T; Heitmann, Ana P; Mansur, Herman S; Mansur, Alexandra A; Oliveira, Luiz C A; de Castro, Cinthia S.
Afiliação
  • do Prado NT; Department of Chemistry, Federal University of Minas Gerais, Av. Antônio Carlos 6627, Campus Pampulha, 31270-901, BH-MG, Brazil.
  • Heitmann AP; Department of Chemistry, Federal University of Minas Gerais, Av. Antônio Carlos 6627, Campus Pampulha, 31270-901, BH-MG, Brazil.
  • Mansur HS; Department of Metallurgical and Materials Engineering, Av. Antônio Carlos 6627, Campus Pampulha, 31270-901, BH-MG, Brazil.
  • Mansur AA; Department of Metallurgical and Materials Engineering, Av. Antônio Carlos 6627, Campus Pampulha, 31270-901, BH-MG, Brazil.
  • Oliveira LCA; Department of Chemistry, Federal University of Minas Gerais, Av. Antônio Carlos 6627, Campus Pampulha, 31270-901, BH-MG, Brazil.
  • de Castro CS; Department of Chemistry, Federal University of Minas Gerais, Av. Antônio Carlos 6627, Campus Pampulha, 31270-901, BH-MG, Brazil. Electronic address: cinthia.soares.castro@gmail.com.
J Environ Sci (China) ; 57: 312-320, 2017 Jul.
Article em En | MEDLINE | ID: mdl-28647251
This work describes the synthesis of catalysts based on red mud/polyethylene terephthalate (PET) composites and their subsequent heat treatment under N2 atmosphere. The materials were characterized by scanning electron microscopy (SEM), temperature programmed reduction (TPR), Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), thermogravimetric (TG) analysis and N2 adsorption/desorption. The catalysts were evaluated in the oxidative desulfurization reaction of dibenzothiophene (DBT) in a biphasic system. The results indicated that the PET impregnation on red mud increased the affinity of the catalyst with the nonpolar phase (fuel), in which the contaminant was dissolved, allowing a higher conversion (up to 80%) and selectivity to the corresponding dibenzothiophene sulfone. The sulfone compound is more polar than DBT and diffused into the polar solvent as indicated by the data obtained via gas chromatography-mass spectrometry (GC-MS).
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Polietilenotereftalatos / Modelos Químicos Idioma: En Revista: J Environ Sci (China) Assunto da revista: SAUDE AMBIENTAL Ano de publicação: 2017 Tipo de documento: Article País de afiliação: Brasil País de publicação: Holanda
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Polietilenotereftalatos / Modelos Químicos Idioma: En Revista: J Environ Sci (China) Assunto da revista: SAUDE AMBIENTAL Ano de publicação: 2017 Tipo de documento: Article País de afiliação: Brasil País de publicação: Holanda