Skip to main content
main-content

Tipp

Weitere Artikel dieser Ausgabe durch Wischen aufrufen

11.07.2019

Novel application for palygorskite clay mineral: a kinetic and thermodynamic assessment of diesel fuel desulfurization

Zeitschrift:
Adsorption
Autoren:
Anne B. F. Câmara, Rafael V. Sales, Luiz C. Bertolino, Rayssa P. P. Furlanetto, Enrique Rodríguez-Castellón, Luciene S. de Carvalho
Wichtige Hinweise

Electronic supplementary material

The online version of this article (https://​doi.​org/​10.​1007/​s10450-019-00144-z) contains supplementary material, which is available to authorized users.

Publisher's Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Abstract

Palygorskite (Pal) is a low-cost clay mineral material and was investigated in this study as a novel material for adsorptive desulfurization of petroleum refining fractions from the Clara Camarão Potiguar Refinery (RPCC) in Brazil. This clay mineral was characterized by X-ray fluorescence, X-ray photoelectron spectroscopy, X-ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy, thermogravimetry, zeta potential (\(\zeta\)) and N2 adsorption/desorption isotherm analyses. Palygorskite textural properties (specific surface area 156 m2 g−1, total pore volume 0.36 cm3 g−1) and specific surface chemistry activity with several metals were crucial to efficient adsorption, proposing that an interaction between adsorbate/adsorbent involves π-complexation mainly with Fe species. This material was used in raw and thermally activated forms to evaluate the adsorption capacity. Several kinetic and equilibrium models were used to assess the experimental data. The results showed high correlation to the pseudo-second order kinetic model for both adsorbents (R2 > 0.99), suggesting a chemisorption process as the determining step. Isotherm data were used to evaluate the equilibrium experimental data. Maximum adsorption capacity calculated from the Langmuir isotherm (R2 > 0.97) was 6.25 mg g−1 for raw-Pal at 318 K. The adsorption thermodynamic assessment of S-compounds indicated an endothermic process, and there was consequently an increase in spontaneity at higher temperatures. The adsorbent raw-Pal displayed good potential in the adsorption of sulfur compounds in real diesel fuel. Palygorskite stands out for being an abundant clay mineral in nature, environmentally safe, and with high possibility of its applications in adsorption and catalysis processes.

Bitte loggen Sie sich ein, um Zugang zu diesem Inhalt zu erhalten

Sie möchten Zugang zu diesem Inhalt erhalten? Dann informieren Sie sich jetzt über unsere Produkte:

Springer Professional "Wirtschaft+Technik"

Online-Abonnement

Mit Springer Professional "Wirtschaft+Technik" erhalten Sie Zugriff auf:

  • über 69.000 Bücher
  • über 500 Zeitschriften

aus folgenden Fachgebieten:

  • Automobil + Motoren
  • Bauwesen + Immobilien
  • Business IT + Informatik
  • Elektrotechnik + Elektronik
  • Energie + Umwelt
  • Finance + Banking
  • Management + Führung
  • Marketing + Vertrieb
  • Maschinenbau + Werkstoffe
  • Versicherung + Risiko

Testen Sie jetzt 30 Tage kostenlos.

Springer Professional "Technik"

Online-Abonnement

Mit Springer Professional "Technik" erhalten Sie Zugriff auf:

  • über 50.000 Bücher
  • über 380 Zeitschriften

aus folgenden Fachgebieten:

  • Automobil + Motoren
  • Bauwesen + Immobilien
  • Business IT + Informatik
  • Elektrotechnik + Elektronik
  • Energie + Umwelt
  • Maschinenbau + Werkstoffe​​​​​​​




Testen Sie jetzt 30 Tage kostenlos.

Zusatzmaterial
Supplementary material 1 (DOCX 260 kb)
10450_2019_144_MOESM1_ESM.docx
Literatur
Über diesen Artikel

Premium Partner

    Marktübersichten

    Die im Laufe eines Jahres in der „adhäsion“ veröffentlichten Marktübersichten helfen Anwendern verschiedenster Branchen, sich einen gezielten Überblick über Lieferantenangebote zu verschaffen. 

    Bildnachweise