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Drop-in biofuels from the co-pyrolysis of grape seeds and polystyrene

AuthorsSanahuja-Parejo, Olga; Veses Roda, Alberto ; Navarro López, María Victoria ; López Sebastián, José Manuel ; Murillo Villuendas, Ramón ; Callén Romero, Mª Soledad ; García Martínez, Tomás
Drop-in fuels
Lignocellulosic biomass
Grape seeds
Issue Date1-Dec-2019
PublisherElsevier BV
CitationChemical Engineering Journal 377: 120246 (2019)
AbstractCo-pyrolysis of grape seeds and polystyrene was conducted in a fixed-bed reactor, followed by an analysis of the organic phase for possible further application as a drop-in fuel. Significant positive synergistic effects were found with the addition of polystyrene (5–40 wt%) to the conventional pyrolysis of grape seeds. There was a considerable improvement in the organic phase yield, in particular, reaching values over 80 wt%, markedly higher than those obtained from conventional pyrolysis (61 wt%). Fuel properties of the bio-oil were also upgraded, with a decrease in oxygen content and an increase in the heating value. An organic bio-oil fraction with pH values ranging from 5.4 to 6.2 was obtained, reducing the issues associated with handling bio-oils obtained from common pyrolysis of lignocellulosic biomass, usually ranging pH between 2 and 3. Finally, an increment in the desired compounds, mainly aromatics, was also attained, while at the same time achieving a low content of undesired compounds, such as phenols. It was demonstrated that polystyrene can act as a H2-donor, favoring oligomerization, cyclation and hydrodeoxygenation reactions into aromatic compounds.
Description9 Figuras, 4 Tablas.-- Material suplementario disponible en línea en la página web del editor.
Publisher version (URL)http://dx.doi.org/10.1016/j.cej.2018.10.183
Appears in Collections:(ICB) Artículos
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