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1. US20040220284 - Spray atomization

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Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

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What is claimed is:

1. A feedstock composition for increasing the efficiency of atomization in hydrocarbon processing comprising:
a water-in-hydrocarbon oil emulsion comprising a non-ionic surfactant capable of stabilizing said emulsion and having a hydrophilic-lipophilic balance of greater than about 12.
2. The composition of claim 1, wherein said hydrophilic-lipophilic balance is about 15 to about 16.
3. The composition of claim 1, wherein said water-in-hydrocarbon oil emulsion comprises a continuous hydrocarbon oil phase and a discontinuous aqueous phase.
4. The composition of claim 1, wherein said emulsion comprises water droplets of about 5 to about 10 microns in diameter, said droplets being dispersed substantially uniformly in said hydrocarbon oil phase.
5. The composition of claim 1, wherein said surfactant is capable of stabilizing said water-in-hydrocarbon oil emulsion under an emulsification condition comprising temperatures greater than about 200-300° F.
6. The composition of claim 1, wherein said surfactant is capable of stabilizing said water-in-hydrocarbon oil emulsion under an emulsification condition comprising pressure conditions greater than steam vapor pressure.
7. The composition of claim 1, wherein said non-ionic surfactant is selected from the group consisting of ethoxylated alkyl phenols, ethylene oxide propylene oxide block copolymers, polymerized alcohols and amines, partially fluorinated chain hydrocarbons and combinations thereof.
8. The composition of claim 1, wherein the water in said composition is present in amounts of about 3 to about 15% by volume of the total composition.
9. The composition of claim 1, wherein the hydrocarbon oil is present in amounts of about 84 to about 97% by volume of the total composition.
10. The composition of claim 1, wherein the surfactant is present in amounts of about 10 ppm.
11. The composition of claim 1, wherein the surfactant is present in amounts of about 1% by volume of the total composition.
12. A process for preparing a feedstock emulsion composition with increased efficiency of atomization comprising the steps of:
(a) providing a water source;
(b) providing a hydrocarbon fuel oil source;
(c) providing a non-ionic surfactant having a hydrophilic-lipophilic balance of greater than about 12; and
(d) combining components (a), (b) and (c) under conditions sufficient to form a water-in-hydrocarbon fuel oil emulsion, said non-ionic surfactant being present in an amount suitable to stabilize said emulsion.
13. The process of claim 12, wherein said combining is performed under emulsification conditions comprising temperatures of greater than about 200-500° F.
14. The process of claim 12, wherein said combining is performed under emulsification conditions comprising pressure conditions greater than steam vapor pressure.
15. The process of claim 12, wherein said combining comprises mixing said components (a), (b) and (c) on the feed side of a spray nozzle.
16. The process of claim 12, wherein said combining comprises first mixing said surfactant with said water to form a surfactant liquid, and subsequently mixing said surfactant liquid with said hydrocarbon fuel oil to form said emulsion.
17. A process for controlling atomization of a liquid hydrocarbon comprising the steps of:
(a) providing a water source;
(b) providing a hydrocarbon fuel oil source;
(c) providing a non-ionic surfactant having a hydrophilic/lipophilic balance of greater than about 12; and
(d) combining components (a), (b) and (c) on the feed side of a spray nozzle; and (e) passing said combined components through said spray nozzle to produce a controlled hydrocarbon droplet size and distribution.
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