Some guidelines for improving the dehydration process during grease manufacture
Identifieur interne : 001101 ( PascalFrancis/Curation ); précédent : 001100; suivant : 001102Some guidelines for improving the dehydration process during grease manufacture
Auteurs : L. Floquet-Muhr [France] ; N. Midoux [France] ; G. Wild [France] ; J. P. Saint [France]Source :
- Lubrication engineering [ 0024-7154 ] ; 1996.
Descripteurs français
- Pascal (Inist)
- Wicri :
- topic : Déshydratation.
English descriptors
- KwdEn :
Abstract
The dehydration process during grease manufacture has been inivestigated in a mechanically stirred tank. A better understanding of boiling regimes enabled three main guidelines to be suggested for improving this operation. The first advice concerns the control of the wall temperature : it must not be too high to avoid working in the transition regime. The second one relates to the pressure release : the system must be kept near to the equilibrium to enable the bubbles to form at the reactor wall, resulting in better heat transfer. Last, but not least, attention must be drawn to the configuration of the stirring device : the use of scrapers can be beneficial in terms of energy cost and in the case of heat-sensitive products.
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<front><div type="abstract" xml:lang="en">The dehydration process during grease manufacture has been inivestigated in a mechanically stirred tank. A better understanding of boiling regimes enabled three main guidelines to be suggested for improving this operation. The first advice concerns the control of the wall temperature : it must not be too high to avoid working in the transition regime. The second one relates to the pressure release : the system must be kept near to the equilibrium to enable the bubbles to form at the reactor wall, resulting in better heat transfer. Last, but not least, attention must be drawn to the configuration of the stirring device : the use of scrapers can be beneficial in terms of energy cost and in the case of heat-sensitive products.</div>
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