ZrO2-supported alkali metal (Li, Na, K) catalysts for biodiesel production

Gonzalo Aguila, Daniela Salinas, Romel Jiménez, Sichem Guerrero, Paulo Araya

Resultado de la investigación: Contribución a la publicaciónArticle

Resumen

We studied the effect of the alkali metal type (Li, Na, and K) and the calcination temperature (500, 600 and 700 °C) in the activity for biodiesel production of catalysts prepared by impregnation method, with constant metal content of 10%w/w using ZrO2 as support. The results of the catalytic activity allowed to find an activity sequence regarding the alkali tested metals: Na > Li > K, with this sequence remaining constant independent of the calcination temperature. The high activity of the Na/ZrO2 system, and slightly lower activity of Li/ZrO2, can be explained by the fact that higher calcination temperatures promote the formation of alkali-based zirconate species, M2ZrO3 (M = Na or Li). The presence of these species is correlated with the higher activity of these catalysts, specifically with the Na and Li-based catalyst calcined at high temperatures (600-700 °C). These M2ZrO3 species show higher basicity respect to other alkali metal oxide species, as was demonstrated with CO2-TPD results. The higher activity corresponded to 10% Na supported on ZrO2 and calcined at 700 °C, which reached full conversion within just 30 minutes of reaction, which makes this system a promising heterogeneous replacement for the regular homogeneous systems.

Idioma originalEnglish
Páginas (desde - hasta)3233-3238
Número de páginas6
PublicaciónJournal of the Chilean Chemical Society
Volumen61
Número de edición4
EstadoPublished - 2016

Huella dactilar

Acetanilides
Afferent Loop Syndrome
Community Dentistry
Liver Mitochondrion
Alkalinity
Catalyst supports
Gonadotropin-Releasing Hormone
Catalyst activity

Keywords

    ASJC Scopus subject areas

    • Chemistry(all)

    Citar esto

    Aguila, G., Salinas, D., Jiménez, R., Guerrero, S., & Araya, P. (2016). ZrO2-supported alkali metal (Li, Na, K) catalysts for biodiesel production. Journal of the Chilean Chemical Society, 61(4), 3233-3238.

    Aguila, Gonzalo; Salinas, Daniela; Jiménez, Romel; Guerrero, Sichem; Araya, Paulo / ZrO2-supported alkali metal (Li, Na, K) catalysts for biodiesel production.

    En: Journal of the Chilean Chemical Society, Vol. 61, N.º 4, 2016, p. 3233-3238.

    Resultado de la investigación: Contribución a la publicaciónArticle

    @article{f839fcf40bc844dbad815fc1650aa4f3,
    title = "ZrO2-supported alkali metal (Li, Na, K) catalysts for biodiesel production",
    abstract = "We studied the effect of the alkali metal type (Li, Na, and K) and the calcination temperature (500, 600 and 700 °C) in the activity for biodiesel production of catalysts prepared by impregnation method, with constant metal content of 10%w/w using ZrO2 as support. The results of the catalytic activity allowed to find an activity sequence regarding the alkali tested metals: Na > Li > K, with this sequence remaining constant independent of the calcination temperature. The high activity of the Na/ZrO2 system, and slightly lower activity of Li/ZrO2, can be explained by the fact that higher calcination temperatures promote the formation of alkali-based zirconate species, M2ZrO3 (M = Na or Li). The presence of these species is correlated with the higher activity of these catalysts, specifically with the Na and Li-based catalyst calcined at high temperatures (600-700 °C). These M2ZrO3 species show higher basicity respect to other alkali metal oxide species, as was demonstrated with CO2-TPD results. The higher activity corresponded to 10% Na supported on ZrO2 and calcined at 700 °C, which reached full conversion within just 30 minutes of reaction, which makes this system a promising heterogeneous replacement for the regular homogeneous systems.",
    keywords = "Alkali metal, Biodiesel, Heterogeneous catalysts, Transesterification, Zirconia",
    author = "Gonzalo Aguila and Daniela Salinas and Romel Jiménez and Sichem Guerrero and Paulo Araya",
    year = "2016",
    volume = "61",
    pages = "3233--3238",
    journal = "Journal of the Chilean Chemical Society",
    issn = "0717-9324",
    publisher = "Sociedad Chilena De Quimica",
    number = "4",

    }

    Aguila, G, Salinas, D, Jiménez, R, Guerrero, S & Araya, P 2016, 'ZrO2-supported alkali metal (Li, Na, K) catalysts for biodiesel production' Journal of the Chilean Chemical Society, vol. 61, n.º 4, pp. 3233-3238.

    ZrO2-supported alkali metal (Li, Na, K) catalysts for biodiesel production. / Aguila, Gonzalo; Salinas, Daniela; Jiménez, Romel; Guerrero, Sichem; Araya, Paulo.

    En: Journal of the Chilean Chemical Society, Vol. 61, N.º 4, 2016, p. 3233-3238.

    Resultado de la investigación: Contribución a la publicaciónArticle

    TY - JOUR

    T1 - ZrO2-supported alkali metal (Li, Na, K) catalysts for biodiesel production

    AU - Aguila,Gonzalo

    AU - Salinas,Daniela

    AU - Jiménez,Romel

    AU - Guerrero,Sichem

    AU - Araya,Paulo

    PY - 2016

    Y1 - 2016

    N2 - We studied the effect of the alkali metal type (Li, Na, and K) and the calcination temperature (500, 600 and 700 °C) in the activity for biodiesel production of catalysts prepared by impregnation method, with constant metal content of 10%w/w using ZrO2 as support. The results of the catalytic activity allowed to find an activity sequence regarding the alkali tested metals: Na > Li > K, with this sequence remaining constant independent of the calcination temperature. The high activity of the Na/ZrO2 system, and slightly lower activity of Li/ZrO2, can be explained by the fact that higher calcination temperatures promote the formation of alkali-based zirconate species, M2ZrO3 (M = Na or Li). The presence of these species is correlated with the higher activity of these catalysts, specifically with the Na and Li-based catalyst calcined at high temperatures (600-700 °C). These M2ZrO3 species show higher basicity respect to other alkali metal oxide species, as was demonstrated with CO2-TPD results. The higher activity corresponded to 10% Na supported on ZrO2 and calcined at 700 °C, which reached full conversion within just 30 minutes of reaction, which makes this system a promising heterogeneous replacement for the regular homogeneous systems.

    AB - We studied the effect of the alkali metal type (Li, Na, and K) and the calcination temperature (500, 600 and 700 °C) in the activity for biodiesel production of catalysts prepared by impregnation method, with constant metal content of 10%w/w using ZrO2 as support. The results of the catalytic activity allowed to find an activity sequence regarding the alkali tested metals: Na > Li > K, with this sequence remaining constant independent of the calcination temperature. The high activity of the Na/ZrO2 system, and slightly lower activity of Li/ZrO2, can be explained by the fact that higher calcination temperatures promote the formation of alkali-based zirconate species, M2ZrO3 (M = Na or Li). The presence of these species is correlated with the higher activity of these catalysts, specifically with the Na and Li-based catalyst calcined at high temperatures (600-700 °C). These M2ZrO3 species show higher basicity respect to other alkali metal oxide species, as was demonstrated with CO2-TPD results. The higher activity corresponded to 10% Na supported on ZrO2 and calcined at 700 °C, which reached full conversion within just 30 minutes of reaction, which makes this system a promising heterogeneous replacement for the regular homogeneous systems.

    KW - Alkali metal

    KW - Biodiesel

    KW - Heterogeneous catalysts

    KW - Transesterification

    KW - Zirconia

    UR - http://www.scopus.com/inward/record.url?scp=85010332875&partnerID=8YFLogxK

    M3 - Article

    VL - 61

    SP - 3233

    EP - 3238

    JO - Journal of the Chilean Chemical Society

    T2 - Journal of the Chilean Chemical Society

    JF - Journal of the Chilean Chemical Society

    SN - 0717-9324

    IS - 4

    ER -