Propriétés de Transport et Métrologie (voir les détails sur la page dédiée)
Publications scientifiques au M2P2
2017
S.A. Toudji, Jean-Philippe Bonnet, J-L. Gardarein, Emilie Carretier. New experimental setup for continuous mass flux measurement in pervaporation. Chemical Engineering Research and Design, 2017, 124 (1), pp.252 - 259. ⟨10.1016/j.cherd.2017.06.029⟩. ⟨hal-01590253⟩ Plus de détails...
Pervaporation is a separation process of liquid mixtures through a thin non-porous membrane. In vacuum pervaporation, the global mass flux is classically estimated by weighing the mass of permeate collected in cold traps. In this work, we propose a new experimental setup that allows a continuous measurement of the mass flux. The new mass flux method measurement was validated for single component permeation (ethanol and water) by comparing mass of permeate collected in cold traps with the level decrease of feed liquid measured with a pressure sensor. This new setup can be useful for laboratory studies dealing with the evolution of mass flux according to different parameters of the process as, for example, the permeate side pressure level or temperature of liquid feed.
S.A. Toudji, Jean-Philippe Bonnet, J-L. Gardarein, Emilie Carretier. New experimental setup for continuous mass flux measurement in pervaporation. Chemical Engineering Research and Design, 2017, 124 (1), pp.252 - 259. ⟨10.1016/j.cherd.2017.06.029⟩. ⟨hal-01590253⟩
Camille Delcroix, Jean-Philippe Bonnet, Martial Etienne, Philippe Moulin. Influence of ionic strength on membrane selectivity during the ultrafiltration of sulfated pentasaccharides. Carbohydrate Polymers, 2015, 116, pp.243-248. ⟨10.1016/j.carbpol.2014.07.013⟩. ⟨hal-01462145⟩ Plus de détails...
Due to their numerous biological properties, natural sulfated polysaccharides have attracted the interest of the food and pharmaceutical industries. Membrane processes were thought to be especially suitable for their production at industrial scale. The aim of this study was to evaluate the effect of sodium chloride, often used as a preservative and a precipitation adjuvant, on the ultrafiltration of sulfated pentasaccharides. In pure water, results showed a complete retention of the polymers on membranes with molecular weight cut-off up to eight times the molecular weight of the studied pentasaccharides. When NaCl was added to a concentration of 0.5 mol L-1, retention rates decreased significantly (approximate to-50%). As no relevant modification of the molecules size was observed through hydrodynamic radius measurements, these variations of selectivity were fully attributed to the screening of membrane surface charges by the electrolyte. Therefore, optimising the ultrafiltration of charged molecules need absolutely exammining electrostatic interactions. (C) 2014 Elsevier Ltd. All rights reserved.
Camille Delcroix, Jean-Philippe Bonnet, Martial Etienne, Philippe Moulin. Influence of ionic strength on membrane selectivity during the ultrafiltration of sulfated pentasaccharides. Carbohydrate Polymers, 2015, 116, pp.243-248. ⟨10.1016/j.carbpol.2014.07.013⟩. ⟨hal-01462145⟩
Jean-Philippe Bonnet, C. Pinatel, Philippe Moulin, J. Artaud. Estimation expérimentale du temps de décantation lors du stockage de trois huiles d'olive françaises : première approche. Le nouvel olivier, 2012, 87, pp.5-11. ⟨hal-00996246⟩ Plus de détails...
Jean-Philippe Bonnet, C. Pinatel, Philippe Moulin, J. Artaud. Estimation expérimentale du temps de décantation lors du stockage de trois huiles d'olive françaises : première approche. Le nouvel olivier, 2012, 87, pp.5-11. ⟨hal-00996246⟩
Camille Delcroix, Jean-Philippe Bonnet, M. Etienne, Philippe Moulin. Filtration of pharmaceutical polysaccharides: from the mass transfer to the industrial development. Procedia Engineering, 2012, 44, pp.768-771. ⟨10.1016/j.proeng.2012.08.563⟩. ⟨hal-00997188⟩ Plus de détails...
Camille Delcroix, Jean-Philippe Bonnet, M. Etienne, Philippe Moulin. Filtration of pharmaceutical polysaccharides: from the mass transfer to the industrial development. Procedia Engineering, 2012, 44, pp.768-771. ⟨10.1016/j.proeng.2012.08.563⟩. ⟨hal-00997188⟩
Jean-Philippe Bonnet, Laurie Devesvre, Jacques Artaud, Philippe Moulin. Dynamic viscosity of olive oil as a function of composition and temperature: A first approach. European Journal of Lipid Science and Technology, 2011, 113 (8), pp.1019-1025. ⟨10.1002/ejlt.201000363⟩. ⟨hal-01295371⟩ Plus de détails...
Knowledge of the viscosity of virgin olive oils (VOOs) is of great importance for the design of pilot plants, to determine the time required for the settling of particles at the end of the production chain and from a sensory view point. The dynamic viscosities of French VOOs from four different cultivars (‘Aglandau’, ‘Bouteillan’, ‘Salonenque’ and ‘Tanche’) were studied as a function of their fatty acid and TAG compositions and of the temperature [10–50°C]. These four VOOs had different TAG and fatty acid compositions representative of the range of compositional variations in the main French oils. Their viscosities were similar, although small but measurable differences that depended on their compositions were apparent. All the VOO samples exhibited the same dynamic viscosity pattern over temperature. For a given temperature, the viscosity difference was the greatest between Aglandau and Salonenque oils, Aglandau being the oil with the highest viscosity. The correlation between temperature and viscosity was highlighted by an Arrhenius model for this Newtonian fluid. The Arrhenius activation energy was correlated (R2 = 0.993) with the percentage of triolein, the main TAG in olive oil.
Jean-Philippe Bonnet, Laurie Devesvre, Jacques Artaud, Philippe Moulin. Dynamic viscosity of olive oil as a function of composition and temperature: A first approach. European Journal of Lipid Science and Technology, 2011, 113 (8), pp.1019-1025. ⟨10.1002/ejlt.201000363⟩. ⟨hal-01295371⟩
Journal: European Journal of Lipid Science and Technology
Jean-Philippe Bonnet, Frédéric Topin, Jérôme Vicente, Lounes Tadrist. Cocurrent gas-liquid flow in metal foam: an experimental investigation of pressure gradient. Journal of Porous Media, 2010, 13 (6), pp.497-510. ⟨10.1615/JPorMedia.v13.i6.10⟩. ⟨hal-01024714⟩ Plus de détails...
Metal foams have a relatively large "fluid/solid" contact area (m2 m−3) as well as small pressure drops due to their open structure. They may be used for many applications, such as in chemical reactors for the deposition of a catalyst. Gas and liquid cocurrent flows through this solid foam packing are investigated. Sample pore sizes are in the range of 400−2500 μm. The influence of pore size and gas and liquid mass flow rate density on the pressure gradient is experimentally investigated, and flow regimes are observed (bubbly, pulsating, and trickle flow). The reduced pressure gradient, defined as the two-phase multiplier by Lockhart and Martinelli formalism, allows the gathering and comparing of results obtained for all samples. Although the pore size range is very wide, the two-phase multiplier does not reveal any significant discrepancy between all the tested samples. Moreover, a correlation with glass-packed beds may reasonably be used to predict the pressure drop in metal foam (±25%).
Jean-Philippe Bonnet, Frédéric Topin, Jérôme Vicente, Lounes Tadrist. Cocurrent gas-liquid flow in metal foam: an experimental investigation of pressure gradient. Journal of Porous Media, 2010, 13 (6), pp.497-510. ⟨10.1615/JPorMedia.v13.i6.10⟩. ⟨hal-01024714⟩
