Emulsified fcc feedstock for improved spray atomization

C - Chemistry – Metallurgy – 10 – G

Patent

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Details

C10G 11/18 (2006.01) C10L 1/32 (2006.01)

Patent

CA 2524152

The present invention provides a feedstock composition for increasing the efficiency of atomization in hydrocarbon processing that includes a water-in- hydrocarbon oil emulsion including a non-ionic surfactant capable of stabilizing the emulsion and having a hydrophilic-lipophilic balance of greater than about 12. The emulsion includes water droplets of about 5 to about 10 microns in diameter, the droplets being dispersed substantially uniformly in the hydrocarbon oil phase. These surfactants are capable of stabilizing the water-in-hydrocarbon oil emulsion under relevant temperature and pressure conditions for hydrocarbon processing. The inventive feedstock composition provides a metastable water-in-oil emulsion where expanding water vapor explodes under spray conditions where the system pressure is released, demolishing a larger oil droplet and producing smaller oil droplets.

L'invention concerne une composition de charge permettant d'augmenter l'efficacité d'atomisation dans un traitement d'hydrocarbure. Cette composition comprend une émulsion huileuse eau-dans-hydrocarbure comprenant un surfactant non ionique permettant une stabilisation de l'émulsion et présentant un équilibre hydrophile/lipophile supérieur à 12 environ. Cette émulsion comprend des gouttelettes d'eau présentant un diamètre compris entre 5 et 10 microns environ, ces gouttelettes étant dispersées sensiblement uniformément dans la phase huileuse d'hydrocarbure. Ces surfactants peuvent stabiliser l'émulsion huileuse eau-dans-hydrocarbure, à une température et dans des conditions de pression appropriées à un traitement d'hydrocarbure. La composition de charge de l'invention concerne une émulsion eau-dans-huile, à une température appropriée et dans des conditions de pression appropriées pour un traitement d'hydrocarbure. La composition de charge de l'invention permet d'obtenir une émulsion eau-dans-huile métastable dans laquelle de la vapeur d'eau en dilatation explose dans des conditions d'atomisation dans lesquelles la pression du système est libérée, détruisant de grosses gouttelettes huileuses pour produire de petites gouttelettes huileuses.

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