F - Mech Eng,Light,Heat,Weapons – 23 – C
Patent
F - Mech Eng,Light,Heat,Weapons
23
C
F23C 99/00 (2006.01) B01J 8/26 (2006.01) B08B 15/00 (2006.01) C10G 11/18 (2006.01) F23C 10/00 (2006.01) F23C 10/01 (2006.01) F23C 10/04 (2006.01)
Patent
CA 2737105
The invention relates to a device and an improved method for the chemical loop combustion of at least one liquid hydrocarbon feedstock, said method comprising: mixing the liquid feedstock with an atomisation gas for feeding the same into a metal oxide transport area (2) upstream from the combustion area (3) and through an atomisation means (6) so as to form finely dispersed liquid droplets in the atomisation gas; spraying the liquid feedstock in the form of droplets into contact with at least one portion of the metal oxides in the transport area (2), the operational conditions in the transport area (2) being selected so that the superficial speed of the gas after spraying the liquid feedstock is higher than the transport speed of the metal oxide particles; and feeding the entirety of the effluents from the transport area (2) towards a combustion area (3) for reducing the metal oxides, said combustion area (3) including at least one dense-phase fluidised bed. The invention can advantageously be used for capturing CO2 and for generating power.
L'invention concerne un dispositif et un procédé amélioré de combustion en boucle chimique d'au moins une charge hydrocarbonée liquide, dans lequel : on mélange la charge liquide avec un gaz d'atomisation pour l'introduire dans une zone de transport (2) des oxydes métalliques, en amont de la zone de combustion (3), à travers des moyens d'atomisation (6) permettant de former des gouttelettes de liquide finement dispersées dans le gaz d'atomisation; on vaporise la charge liquide sous forme de gouttelettes au contact d'au moins une partie des oxydes métalliques dans la zone de transport (2), les conditions opératoires dans la zone de transport (2) étant choisies pour que la vitesse superficielle du gaz après vaporisation de la charge liquide soit supérieure à la vitesse de transport des particules d'oxydes métalliques; on envoie l'ensemble des effluents issus de la zone de transport (2) dans une zone de combustion (3) permettant la réduction des oxydes métalliques, ladite zone de combustion (3) comprenant au moins un lit fluidisé en phase dense. L'invention s'applique avantageusement au captage du CO2 et à la production d'énergie.
Forret Ann
Gauthier Thierry
Hoteit Ali
Ifp Energies Nouvelles
Robic
Total S.a.
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