Adsorption of 4,6-Dimethyldibenzothiophene over Cu/ZrO2

P. Baeza, R. Bassi, M. Villarroel, J. Ojeda, P. Araya, G. Aguila

Resultado de la investigación: Research - revisión exhaustivaArticle

  • 3 Citas

Resumen

The adsorption of refractory sulfur molecule 4,6-Dimethyldibenzothiophene (4,6-DMDBT) over copper supported on zirconia, using different copper loadings (2-10% w/w) and a zirconia support with a high specific surface area, was studied. The results showed that the adsorption capacity of 4,6-DMDBT over Cu/ZrO2increased with copper content, reaching a maximum at around 8% Cu (0.58 mmol 4,6-DMDBT per gram of adsorbent). The results of characterizations with H2- TPR, Electrophoretic Migration, and XRD demonstrated that this Cu loading (8%) also corresponds to a maximum copper dispersion capacity for ZrO2support. Also, these absorbents showed considerable selectivity toward the adsorption of 4,6-DMDBT in a feed stream also containing Quinoline, decreasing adsorption capacity of 4,6-DMDBT by only 35%, despite both molecules being present in the same concentrations. The results of this work showed that desulfurization adsorption using Cu/ZrO2 adsorbents can be an effective method to remove this type of refractory sulfur molecules, and an excellent alternative as a complementary process for deep desulfurization in the fuel industry.

IdiomaEnglish
Páginas2817-2821
Número de páginas5
PublicaciónJournal of the Chilean Chemical Society
Volumen60
Número de edición1
EstadoPublished - 1 mar 2015

Huella dactilar

Adsorption
4,6-dimethyldibenzothiophene
Copper
Molecules
Desulfurization
Sulfur
Refractory materials
Adsorbents
zirconium oxide
Specific surface area
Industry
quinoline

Keywords

    ASJC Scopus subject areas

    • Chemistry(all)

    Citar esto

    Baeza, P., Bassi, R., Villarroel, M., Ojeda, J., Araya, P., & Aguila, G. (2015). Adsorption of 4,6-Dimethyldibenzothiophene over Cu/ZrO2. Journal of the Chilean Chemical Society, 60(1), 2817-2821.
    Baeza, P. ; Bassi, R. ; Villarroel, M. ; Ojeda, J. ; Araya, P. ; Aguila, G./ Adsorption of 4,6-Dimethyldibenzothiophene over Cu/ZrO2. En: Journal of the Chilean Chemical Society. 2015 ; Vol. 60, N.º 1. pp. 2817-2821
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    title = "Adsorption of 4,6-Dimethyldibenzothiophene over Cu/ZrO2",
    abstract = "The adsorption of refractory sulfur molecule 4,6-Dimethyldibenzothiophene (4,6-DMDBT) over copper supported on zirconia, using different copper loadings (2-10% w/w) and a zirconia support with a high specific surface area, was studied. The results showed that the adsorption capacity of 4,6-DMDBT over Cu/ZrO2increased with copper content, reaching a maximum at around 8% Cu (0.58 mmol 4,6-DMDBT per gram of adsorbent). The results of characterizations with H2- TPR, Electrophoretic Migration, and XRD demonstrated that this Cu loading (8%) also corresponds to a maximum copper dispersion capacity for ZrO2support. Also, these absorbents showed considerable selectivity toward the adsorption of 4,6-DMDBT in a feed stream also containing Quinoline, decreasing adsorption capacity of 4,6-DMDBT by only 35%, despite both molecules being present in the same concentrations. The results of this work showed that desulfurization adsorption using Cu/ZrO2 adsorbents can be an effective method to remove this type of refractory sulfur molecules, and an excellent alternative as a complementary process for deep desulfurization in the fuel industry.",
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    Baeza, P, Bassi, R, Villarroel, M, Ojeda, J, Araya, P & Aguila, G 2015, 'Adsorption of 4,6-Dimethyldibenzothiophene over Cu/ZrO2' Journal of the Chilean Chemical Society, vol. 60, n.º 1, pp. 2817-2821.

    Adsorption of 4,6-Dimethyldibenzothiophene over Cu/ZrO2. / Baeza, P.; Bassi, R.; Villarroel, M.; Ojeda, J.; Araya, P.; Aguila, G.

    En: Journal of the Chilean Chemical Society, Vol. 60, N.º 1, 01.03.2015, p. 2817-2821.

    Resultado de la investigación: Research - revisión exhaustivaArticle

    TY - JOUR

    T1 - Adsorption of 4,6-Dimethyldibenzothiophene over Cu/ZrO2

    AU - Baeza,P.

    AU - Bassi,R.

    AU - Villarroel,M.

    AU - Ojeda,J.

    AU - Araya,P.

    AU - Aguila,G.

    PY - 2015/3/1

    Y1 - 2015/3/1

    N2 - The adsorption of refractory sulfur molecule 4,6-Dimethyldibenzothiophene (4,6-DMDBT) over copper supported on zirconia, using different copper loadings (2-10% w/w) and a zirconia support with a high specific surface area, was studied. The results showed that the adsorption capacity of 4,6-DMDBT over Cu/ZrO2increased with copper content, reaching a maximum at around 8% Cu (0.58 mmol 4,6-DMDBT per gram of adsorbent). The results of characterizations with H2- TPR, Electrophoretic Migration, and XRD demonstrated that this Cu loading (8%) also corresponds to a maximum copper dispersion capacity for ZrO2support. Also, these absorbents showed considerable selectivity toward the adsorption of 4,6-DMDBT in a feed stream also containing Quinoline, decreasing adsorption capacity of 4,6-DMDBT by only 35%, despite both molecules being present in the same concentrations. The results of this work showed that desulfurization adsorption using Cu/ZrO2 adsorbents can be an effective method to remove this type of refractory sulfur molecules, and an excellent alternative as a complementary process for deep desulfurization in the fuel industry.

    AB - The adsorption of refractory sulfur molecule 4,6-Dimethyldibenzothiophene (4,6-DMDBT) over copper supported on zirconia, using different copper loadings (2-10% w/w) and a zirconia support with a high specific surface area, was studied. The results showed that the adsorption capacity of 4,6-DMDBT over Cu/ZrO2increased with copper content, reaching a maximum at around 8% Cu (0.58 mmol 4,6-DMDBT per gram of adsorbent). The results of characterizations with H2- TPR, Electrophoretic Migration, and XRD demonstrated that this Cu loading (8%) also corresponds to a maximum copper dispersion capacity for ZrO2support. Also, these absorbents showed considerable selectivity toward the adsorption of 4,6-DMDBT in a feed stream also containing Quinoline, decreasing adsorption capacity of 4,6-DMDBT by only 35%, despite both molecules being present in the same concentrations. The results of this work showed that desulfurization adsorption using Cu/ZrO2 adsorbents can be an effective method to remove this type of refractory sulfur molecules, and an excellent alternative as a complementary process for deep desulfurization in the fuel industry.

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    KW - Copper

    KW - Desulfurization

    KW - Zirconia

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    Baeza P, Bassi R, Villarroel M, Ojeda J, Araya P, Aguila G. Adsorption of 4,6-Dimethyldibenzothiophene over Cu/ZrO2. Journal of the Chilean Chemical Society. 2015 mar 1;60(1):2817-2821.