Vanadium corrosion inhibitor
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Claims
1. A fuel mixture comprising a hydrocarbon fuel and a yttrium ester/chelate complex, wherein when the hydrocarbon fuel is burned, V.sub.2 O.sub.5 is a by-product, and wherein the concentration of the yttrium complex in the mixture provides at least a stoichiometric amount of yttrium for a substantially complete reaction between the yttrium and V.sub.2 O.sub.5 whereby the yttrium and V.sub.2 O.sub.5 react to form YVO.sub.4.
2. The mixture of claim 1, wherein the concentration of the yttrium complex in the mixture provides at least 125% of the stoichiometric amount of yttrium required for a substantially complete reaction between the yttrium and vanadium.
4. The mixture of claim 3, wherein the yttrium ester comprises four to twelve carbon atoms.
5. The mixture of claim 3, wherein the yttrium ester is selected from the group consisting of yttrium octonate and yttrium 2-ethyl hexanoate.
9. The inhibitor of claim 8, wherein the yttrium ester comprises four to twelve carbon atoms.
10. The inhibitor of claim 8, wherein the yttrium ester is selected from the group consisting of yttrium octonate and yttrium 2-ethyl hexanoate.
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Type: Grant
Filed: Mar 4, 1998
Date of Patent: Mar 2, 1999
Assignee: United Technologies Corporation (Hartford, CT)
Inventors: Norman S. Bornstein (West Hartford, CT), Hilton A. Roth (Cheshire, CT), Roscoe A. Pike (Granby, CT)
Primary Examiner: Margaret Medley
Application Number: 0/34,804
International Classification: C10L 118;