OATAO - Open Archive Toulouse Archive Ouverte Open Access Week

Partial Wetting in Trickle Bed Reactors: Measurements Techniques and Global Wetting Efficiency

Baussaron, Loïc and Julcour-Lebigue, Carine and Wilhelm, Anne-Marie and Boyer, Christophe and Delmas, Henri Partial Wetting in Trickle Bed Reactors: Measurements Techniques and Global Wetting Efficiency. (2007) Industrial and engineering Chemistry Research, vol. 46 (n° 25). pp. 8397-8405. ISSN 0888-5885

[img] (Document in English)

PDF (Author's version) - Depositor and staff only - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
336kB

Official URL: http://dx.doi.org/10.1021/ie070030b

Abstract

Three very different techniques for measuring the catalyst wetted fraction -or wetting efficiency- in trickle bed reactors have been carried out and compared. The first one based on pressure drop data performed successively in single gas then liquid phase, then in gas-liquid phase is experimentally very simple but did not result in meaningful wetting efficiency estimation. The other ones, based on RTD analysis and on dye adsorption on wetted surfaces, gave similar results, and were used to investigate different parameters: liquid velocity and gas molecular weight and pressure by RTD, liquid-solid interaction or affinity (contact angle) and particle shape and diameter by dye fixation. The main operating parameter is the liquid velocity while the effect of gas flow is very weak. Higher solid-liquid affinity (heptane versus water) improves wetting efficiency only at very low liquid velocity (<2·10-3 m/s).

Item Type:Article
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > IFP Energies Nouvelles - IFPEN (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT
Université de Toulouse > Université Paul Sabatier-Toulouse III - UPS
French research institutions > Centre National de la Recherche Scientifique - CNRS
Laboratory name:
Laboratoire de Génie Chimique - LGC (Toulouse, France) - Réaction, mélange & séparation (RMS)
Statistics:download
Deposited By: Hélène Dubernard
Deposited On:23 Oct 2008 09:22

Repository Staff Only: item control page