Study of droplet vaporization of various vegetable oils and blends of domestic fuel oil-cottonseed oil under different ambient temperature conditions

Daho Tizane, Vaitilingom Gilles, Sanogo Oumar, Ouiminga Salifou Kouchka, Segda B.G., Valette Jérémy, Higelin Pascal, Koulidiati Jean. 2012. Study of droplet vaporization of various vegetable oils and blends of domestic fuel oil-cottonseed oil under different ambient temperature conditions. Biomass and Bioenergy, 46 : 653-663.

Quartile : Q1, Sujet : AGRICULTURAL ENGINEERING / Quartile : Q1, Sujet : ENERGY & FUELS / Quartile : Q2, Sujet : BIOTECHNOLOGY & APPLIED MICROBIOLOGY

Résumé : In this work, the evaporation characteristics of different pure vegetable oils (cottonseed oil, jatropha oil, and rapeseed oil), domestic fuel oil (DFO) and blends of domestic fuel oil and cottonseed oil have been studied using the fibre-suspended droplet evaporation technique. The constants of evaporation of pure products were determined as well as the influence of the proportion of DFO fraction on the mechanisms of vaporization process of cottonseed oil in the temperature range of 578 Ke917 K under atmospheric pressure. The results show that the DFO evaporates completely in the range of temperatures considered in contrast to vegetable oils that vaporize completely only for temperatures higher than or equal to 773 K. Above 873 K, the behaviour of vegetable oils becomes similar to a single component product and the d2 law is respected. At a given temperatures range, constants of evaporation of the three vegetable oils are of the same order of magnitude. The results also show that blends of cottonseed oil and DFO vaporize following a sequential distillation mechanism: DFO is evaporating first, followed by a transient phase, and then cottonseed oil vaporizes following the same trends than observed for pure vegetable oils. For low percentages of cottonseed oil (_40%) in the mixture, formation of bubbles can be observed at the end of the process at 684 K. When the concentration of vegetable oil in the droplet increases, the mechanism of pure diffusion becomes predominant.

Mots-clés Agrovoc : huile de coton, huile de colza, huile végétale, Jatropha curcas, pétrole, biocarburant, évaporation (en industrie), propriété physicochimique

Mots-clés géographiques Agrovoc : Languedoc-Roussillon, Burkina Faso, France

Classification Agris : P06 - Sources d'énergie renouvelable
Q60 - Traitement des produits agricoles non alimentaires

Champ stratégique Cirad : Axe 2 (2005-2013) - Biomasse énergie et sociétés du sud

Auteurs et affiliations

• Daho Tizane, CIRAD-PERSYST-UPR Biomasse-énergie (FRA)
• Vaitilingom Gilles, CIRAD-PERSYST-UPR Biomasse-énergie (FRA)
• Sanogo Oumar, IRSAT (BFA)
• Ouiminga Salifou Kouchka, Université de Ouagadougou (BFA)
• Segda B.G., Université de Ouagadougou (BFA)
• Valette Jérémy, CIRAD-PERSYST-UPR Biomasse-énergie (FRA)
• Higelin Pascal, Université d'Orléans (FRA)
• Koulidiati Jean, Université de Ouagadougou (BFA)

Source : Cirad - Agritrop (https://agritrop.cirad.fr/567383/)

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