Optimisation of bio-oil production by hydrothermal liquefaction of agro-industrial residues: Blackcurrant pomace (Ribes nigrum L.) as an example - IMT Mines Albi-Carmaux Accéder directement au contenu
Article Dans Une Revue Biomass and Bioenergy Année : 2016

Optimisation of bio-oil production by hydrothermal liquefaction of agro-industrial residues: Blackcurrant pomace (Ribes nigrum L.) as an example

Résumé

This work reports bio-oil production by hydrothermal liquefaction of blackcurrant pomace (Ribes nigrum L), a fruit residue obtained after berry pressing. The bio-oil has a higher heating value of 35.9 MJ kg(-1) and low ash content, which makes it suitable for energy applications. We report the influence of process parameters on yields and carbon distribution between products: temperature (563-608 K), holding time (0-240 min), mass fraction of dry biomass in the slurry (0.05-0.29), and initial pH (3.1-12.8) by adding sodium hydroxide (NaOH). Depending on the experiments, the bio-oil accounts for at least 24% mass fraction of the initial dry biomass, while char yields ranges from 24 to 40%. A temperature of 583 K enhances the bio-oil yield, up to 30%, while holding time does not have a significant influence on the results. Increasing biomass concentrations decreases bio-oil yields from 29% to 24%. Adding sodium hydroxide decreases the char yield from 35% at pH = 3.1 (without NaOH) to 24% at pH = 12.8. It also increases the bio-oil yield and carbon transfer to the aqueous phase. Thermogravimetric analysis shows that a 43% mass fraction of the bio-oil boils in the medium naphtha petroleum fraction range. The bio-oil is highly acidic and unsaturated, and its dynamic viscosity is high (1.7 Pa sat 298 K), underlining the need for further upgrading before any use for fuel applications.
Fichier principal
Vignette du fichier
2016-Deniel-BB-HAL.pdf (1.25 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-01599994 , version 1 (06-11-2017)

Identifiants

Citer

Maxime Déniel, Geert Haarlemmer, Anne Roubaud, Elsa Weiss-Hortala, Jacques Fages. Optimisation of bio-oil production by hydrothermal liquefaction of agro-industrial residues: Blackcurrant pomace (Ribes nigrum L.) as an example. Biomass and Bioenergy, 2016, 95, pp.273-285. ⟨10.1016/j.biombioe.2016.10.012⟩. ⟨hal-01599994⟩
170 Consultations
202 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More