130855 20240201151018.0 doi 10.1016/j.fuproc.2017.05.020 sideral 99638 ART-2017-99638 eng Gil-Lalaguna, N. (orcid)0000-0002-8704-9274 Obtaining biodiesel antioxidant additives by hydrothermal treatment of lignocellulosic bio-oil 2017 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. Access copy available to the general public Unrestricted info:eu-repo/grantAgreement/ES/DGA/T36 info:eu-repo/grantAgreement/ES/MINECO-FEDER/ENE2013-41523-R info:eu-repo/semantics/openAccess by-nc-nd http://creativecommons.org/licenses/by-nc-nd/3.0/es/ 3.956 2017 CHEMISTRY, APPLIED 8 / 70 = 0.114 2017 Q1 T1 ENGINEERING, CHEMICAL 21 / 136 = 0.154 2017 Q1 T1 ENERGY & FUELS 29 / 96 = 0.302 2017 Q2 T1 1.453 2017 Chemical Engineering (miscellaneous) 2017 Q1 Fuel Technology 2017 Q1 Energy Engineering and Power Technology 2017 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Bautista, A. Gonzalo, A. Universidad de Zaragoza (orcid)0000-0001-8960-2689 Sánchez, J.L. Universidad de Zaragoza (orcid)0000-0002-9705-2207 Arauzo, J. Universidad de Zaragoza (orcid)0000-0002-5959-3168 5005 555 Universidad de Zaragoza Dpto. Ing.Quím.Tecnol.Med.Amb. Área Ingeniería Química 166 (2017), 1-7 Fuel process. technol. Fuel Processing Technology 0378-3820 1800967 http://zaguan.unizar.es/record/130855/files/texto_completo.pdf Postprint 1123336 http://zaguan.unizar.es/record/130855/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:130855 articulos driver 2024-02-01-14:34:35 ARTICLE