Glycerol ketals: Synthesis and profits in biodiesel blends

  1. De Torres, M. 1
  2. Jiménez-Osés, G. 1
  3. Mayoral, J.A. 1
  4. Pires, E. 1
  5. De Los Santos, M. 2
  1. 1 Universidad de Zaragoza
    info

    Universidad de Zaragoza

    Zaragoza, España

    ROR https://ror.org/012a91z28

  2. 2 ELA (Energías Limpias Alternativas S.L.), C/Albert Einstein, E6-E-01510 Vitoria, Spain
Revista:
Fuel

ISSN: 0016-2361

Año de publicación: 2012

Volumen: 94

Páginas: 614-616

Tipo: Artículo

DOI: 10.1016/J.FUEL.2011.11.062 SCOPUS: 2-s2.0-84856693055 WoS: WOS:000300497300075 GOOGLE SCHOLAR

Otras publicaciones en: Fuel

Resumen

Surplus of glycerol due to the increase of biodiesel production has become an economic drawback for the development of biofuel itself. In this work, we show that it is possible to take advantage of glycerol for the synthesis of derivatives such as ketals, which can be used in biodiesel blends. The synthesis of ketals has been successfully carried out in good yields by using a cheap and reusable catalyst, K10 montmorillonite. The analysis of biodiesel blends quality parameters revealed the improvement of their cold properties, but some parameters such as fatty acid methyl ester (FAME) content and oxidation stability do not reached EN14214 specifications. In order to overcome this issue, esterification of the free hydroxyl group has been carried out leading to products with improved and promising properties for biodiesel blends. © 2011 Elsevier Ltd. All rights reserved.