Obtaining biodiesel antioxidant additives by hydrothermal treatment of lignocellulosic bio-oil

Gil-Lalaguna, N. ; Bautista, A. ; Gonzalo, A. (Universidad de Zaragoza) ; Sánchez, J.L. (Universidad de Zaragoza) ; Arauzo, J. (Universidad de Zaragoza)

Resumen: The potential use of bio-oil as a small-dosage additive for improving biodiesel oxidation stability has been investigated in this work. Lignocellulosic bio-oil was high-pressure processed under different mixtures of water and organic solvents in order to promote depolymerization of the high molecular lignin still present in bio-oil and increase the content of phenolics, whose antioxidant potential is known. In fact, the antioxidant potential of bio-oil was found to noticeably enhance after the hydrothermal treatment. While the addition of 2% of crude bio-oil improved biodiesel oxidation stability by 135%, the same amount of hydrotreated bio-oil (water, 300 °C, 8.5 MPa) led to an oxidation stability improvement of 400%, which was related to the increase in the concentration of catechol, as well as to the modification of antioxidant properties of the pyrolytic lignin fraction.

Idioma: Inglés

DOI: 10.1016/j.fuproc.2017.05.020

Año: 2017

Publicado en: Fuel Processing Technology 166 (2017), 1-7
ISSN: 0378-3820

Factor impacto JCR: 3.956 (2017)

Categ. JCR: CHEMISTRY, APPLIED rank: 8 / 70 = 0.114 (2017) - Q1 - T1
Categ. JCR: ENGINEERING, CHEMICAL rank: 21 / 136 = 0.154 (2017) - Q1 - T1
Categ. JCR: ENERGY & FUELS rank: 29 / 96 = 0.302 (2017) - Q2 - T1

Factor impacto SCIMAGO: 1.453 - Chemical Engineering (miscellaneous) (Q1) - Fuel Technology (Q1) - Energy Engineering and Power Technology (Q1)

Financiación: info:eu-repo/grantAgreement/ES/DGA/T36
Financiación: info:eu-repo/grantAgreement/ES/MINECO-FEDER/ENE2013-41523-R

Tipo y forma: Article (PostPrint)

Área (Departamento): Área Ingeniería Química (Dpto. Ing.Quím.Tecnol.Med.Amb.)