Corrosion and microbial control in hydrocarbonaceous compositions
AssigneesDow Global Technologies LLC, Angus Chemical Company
InventorsG. David Green, Sheila M. Tinetti, Patrick E. Brutto, John Pohlman
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Abstract
Provided are additives of formula I for use in hydrocarbonaceous compositions, such as petroleum or liquid fuels: (I) wherein R1, R2, R3, R4, and R5 are as defined herein. The additives improve the corrosion resistance of the compositions. The additives also enhance the antimicrobial efficacy of any added biocides contained in such compositions.
Claims27
A blend comprising:
- a hydrocarbonaceous composition;
- and
- a corrosion inhibitory amount of an aminoalcohol of formula (I)
- or salt thereof, wherein:
- R1 and R3 are each independently H, linear or branched alkyl, alkenyl, alkynyl, cycloalkyl, or aryl, or R1, R3 and the carbon to which they are attached form a cycloalkyl ring,
- R2 and R4 are each independently H, linear or branched alkyl, cycloalkyl, cycloalkyl-alkyl, aryl, aryl-alkyl, or R2, R4 and the carbon to which they are attached form a cycloalkyl ring;
- and, provided that R2 and R4 together contain 3 or more carbon atoms;
- and
- R5 is absent or is a C1-C10 alkylene, arylene, arylene-alkylene-, or -alkylene-arylene-,
- wherein alkyl, cycloalkyl, alkylene, aryl, and arylene are optionally substituted with alkyl or phenyl.
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A fuel blend comprising:
- a liquid fuel;
- a corrosion inhibitory amount of an aminoalcohol of formula (I)
- or salt thereof, wherein:
- R1 and R3 are each independently H, linear or branched alkyl, alkenyl, alkynyl, cycloalkyl, or aryl, or R1, R3 and the carbon to which they are attached form a cycloalkyl ring,
- R2 and R4 are each independently H, linear or branched alkyl, cycloalkyl, cycloalkyl-alkyl, aryl, aryl-alkyl, or R2, R4 and the carbon to which they are attached form a cycloalkyl ring;
- and, provided that R2 and R4 together contain 3 or more carbon atoms;
- and
- R5 is absent or is a C1-C10 alkylene, arylene, arylene-alkylene-, or -alkylene-arylene-,
- wherein alkyl, cycloalkyl, alkylene, aryl, and arylene are optionally substituted with alkyl or phenyl;
- and
- a biocide selected from the group consisting of:
- (i) a blend of 4-(2-nitrobutyl)-morpholine with 4,4′-(2-ethyl-2-nitrotrimethylene)dimorpholine (FUELSAVER from The Dow Chemical Company);
- (ii) a blend of 5-chloro-2-methyl-4-isothiazolin-3-one with 2-methyl-4-isothiazolin-3-one;
- (iii) a blend of (thiocyanomethylthio)-benzothiazole (TCMTB) and methylene bis(thiocyanate (MBT);
- (iv) a substituted dioxaborinane;
- and
- (v) an oxazolidine.
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A method for providing microbial resistance to a biodiesel fuel, the method comprising including in the biodiesel fuel an effective amount of an aminoalcohol of formula (I):
- or salt thereof, wherein:
- R1 and R3 are each independently H, linear or branched alkyl, alkenyl, alkynyl, cycloalkyl, or aryl, or R1, R3 and the carbon to which they are attached form a cycloalkyl ring,
- R2 and R4 are each independently H, linear or branched alkyl, cycloalkyl, cycloalkyl-alkyl, aryl, aryl-alkyl, or R2, R4 and the carbon to which they are attached form a cycloalkyl ring;
- and, provided that R2 and R4 together contain 3 or more carbon atoms;
- and
- R5 is absent or is a C1-C10 alkylene, arylene, arylene-alkylene-, or -alkylene-arylene-,
- wherein alkyl, cycloalkyl, alkylene, aryl, and arylene are optionally substituted with alkyl or phenyl.
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Dependencies are inferred from the claim text.