Patent US3929190A successfully refreshed from Google Patents.
EP0165776A2
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EP
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Corrosion inhibitors for alcohol-based fuels
Assignee: Ethyl Corp
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Filing: 1985-06-13
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Granted: —
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Expires: 2005-06-13
Abstract
Abstract A liquid fuel adapted for use in an internal combustion engine, said fuel comprising 5 to 100 weight percent of one or more alcohols, 0 to 95 weight percent gasoline and, as a corrosion inhibitor, a combination of (A) a member selected from (i) a polymer of one or more C 16 to C, 8 polyunsaturated aliphatic monocarboxylic acids or (ii) at least one monoalkenylsuccinic acid in which the alkenyl group contains 8 to 30 carbon atoms and (B) at least one substituted imidazoline having the structural formula: wherein R represents a hydrocarbon alkenyl group having from 7 to 24 carbon atoms.
Inventors
- 👤 Gordon Grayson Knapp
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-06 13:40
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/18; C10L1/188; C10L1/1881; C10L1/1883; C10L1/22; C10L1/232
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
104 words
A liquid fuel adapted for use in an internal combustion engine, said fuel comprising 5 to 100 weight percent of one or more alcohols, 0 to 95 weight percent gasoline and, as a corrosion inhibitor, a combination of (A) a member selected from ( i ) a polymer of one or more C 16 to C 18 polyunsaturated aliphatic monocarboxylic acids or (ii) at least one monoalkenylsuccinic acid in which the alkenyl group contains 8 to 30 carbon atoms and (B) at least one substituted imidazoline having the structural formula: wherein R represents a hydrocarbon alkenyl group having from 7 to 24 carbon atoms.
Claim 2
Dependent Claim
104 words
A liquid fuel adapted for use in an internal combustion engine, said fuel comprising 5 to 100 weight percent of one or more alcohols, 0 to 95 weight percent gasoline and, as a corrosion inhibitor, a combination of (A) a member selected from ( i ) a polymer of one or more C 16 to C 18 polyunsaturated aliphatic monocarboxylic acids or (ii) at least one monoalkenylsuccinic acid in which the alkenyl group contains 8 to 30 carbon atoms and (B) at least one substituted imidazoline having the structural formula: wherein R represents a hydrocarbon alkenyl group having from 7 to 24 carbon atoms.
Claim 3
Dependent Claim
34 words
A liquid fuel as claimed in Claim 1 wherein said polymer of one or more C 16 to C 18 polyunsaturated aliphatic monocarboxylic acids comprises linoleic acid dimer, trimer or a m xture thereof.
Claim 4
Dependent Claim
19 words
A liquid fuel as claimed in either Claim 1 or Claim 2 wherein said monoalkenylsuccinic ac:d is dodecenylsuccinic acid.
Claim 5
Dependent Claim
19 words
A liquid fuel as claimed in any one of Claims 1 to 3 wherein said substituted imidazolire is 2-heptadecenyl-1-(2-hydroxy-ethyl)imidazoline.
Claim 6
Dependent Claim
33 words
A liquid fuel as claimed in any one of Claims 1 to 4 wherein the weight ratio of component A to component B in the combination is from 1:10 to 10:1, preferably 1:1.
Claim 7
Dependent Claim
47 words
A liquid fuel as claimed in any one of Claims 1 to 5 wherein the corrosion inhibitor is present at an amount ranging from 1 to 5000 pounds (0.45 to 2250 kg) per thousand barrels, preferably 5 to 500 pounds (2.25 to 225 kg) per thousand barrels.
Claim 8
Dependent Claim
48 words
A liquid fuel as claimed in any one of claims 1 to 6 wherein said fuel comprises a major amount of a hydrocarbon distillate in the gasoline distillation range and from 2 to 30 volume percent of one or more alkanols containing from 1 to 4 carbon atoms.
Claim 9
Dependent Claim
59 words
A corrosion inhibitor concentrate comprising a solvent containing 5 to 60 weight percent of a combination of (A) a polymer of one or more C 16 to c 18 polyunsaturated aliphatic monocarboxylic acids and (B) at least one substituted imidazoline having the structural formula: in which R is a hydrocarbon alkenyl group having from 7 to 24 carbon atoms.
Claim 10
Dependent Claim
59 words
A corrosion inhibitor concentrate comprising a solvent containing 5 to 60 weight percent of a combination of (A) a polymer of one or more C 16 to c 18 polyunsaturated aliphatic monocarboxylic acids and (B) at least one substituted imidazoline having the structural formula: in which R is a hydrocarbon alkenyl group having from 7 to 24 carbon atoms.
Claim 11
Independent Claim
57 words
A method of preparing a liquid fuel comprising blending a fuel comprising 5 to 100 weight percent of one or more alcohols and 0 to 95 weight percent gasoline with, as a corrosion inhibitor, a combination as defined in any one of Claims 1 to 5, the components of said combination being either premixed or added separately.
Claim 12
Dependent Claim
50 words
A method as claimed in Claim 9 wherein the corrosion inhibitor is present at an amount ranging from 1 to 5000 pounds (0.45 to 2250 kg) per thousand barrels, preferably 5 to 500 pounds (2.25 to 225 kg) per thousand barrels or the fuel is as defined in Claim 7.
References Cited (Backward Citations)
No citation records indexed.
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