Composition for surface voltage reduction in distillate fuel

Patent metadata

Field	Value
Publication number	US-2016160140-A1
Application number	US-201514938899-A
Country	US
Kind code	A1
Filing date	Nov 12, 2015
Priority date	Dec 9, 2014
Publication date	Jun 9, 2016
Grant date	—

Abstract

Additive composition mixtures and methods for synergistically maintaining low surface voltages of distillate fuels that include a synergistic conductivity improver additive composition for a distillate fuel. The additive composition includes: A) a mixture of (i) alkenyl polysulfone polymer, (ii) C16-C24 substituted maleic/polyamine copolymer, (iii) sulfonic acid, and (iv) aromatic solvent; and B) a mixture of (i) alkenyl polysulfone polymer, (v) polymeric reaction product of a C8-C18 aliphatic amine or diamine with epichlorohydrin; (iii) sulfonic acid, (iv) aromatic solvent; and optionally (vi) a quaternary ammonium compound. The additive composition contains from 30 to 60 wt. % component (A) and from 30 to 60 wt. % component (B) based on a total weight of the additive composition.

First claim

What is claimed is:

1 . A synergistic conductivity improver additive composition for a distillate fuel said additive composition comprising:
A) a mixture of (i) alkenyl polysulfone polymer, (ii) C 16 -C 24 substituted maleic/polyamine copolymer, (iii) sulfonic acid, and (iv) aromatic solvent; and B) a mixture of (i) alkenyl polysulfone polymer, (v) polymeric reaction product of a C 8 -C 18 aliphatic amine or diamine with epichlorohydrin; (iii) sulfonic acid, (iv) aromatic solvent; and optionally (vi) a quaternary ammonium compound,
wherein the additive composition comprises from 30 to 60 wt. % component (A) and from 30 to 60 wt. % component (B) based on a total weight of the additive composition.

2 . The additive composition of claim 1 , wherein an amount of (i) in each of components (A) and (B) ranges from about 10 to about 20% by weight based on a total weight of each component.

3 . The additive composition of claim 1 , wherein an amount of (ii) in component (A) ranges from about 8 to about 15% by weight of a total weight of component (A).

4 . The additive composition of claim 1 , wherein an amount of (v) in component (B) ranges from about 1 to about 10% by weight of a total weight of component (B).

5 . The additive composition of claim 1 , wherein an amount of (iii) in each of components (A) and (B) ranges from about 5 to about 15% by weight based on a total weight of each component.

6 . The additive composition of claim 1 , wherein an amount of (iv) in each of components (A) and (B) ranges from about 50 to about 80% by weight based on a total weight of each component.

7 . The additive composition of claim 1 , wherein component (B) includes from about 1 to about 5% by weight of (vi) based on a total weight of component (B).

8 . The additive composition of claim 1 , wherein (iv) comprises a mixture of aromatic solvent.

9 . A distillate fuel composition comprising a major amount of distillate fuel and a minor conductivity improving amount of the additive composition of claim 1 .

10 . The distillate fuel composition of claim 9 , wherein the additive composition in the fuel ranges from about 0.25 to about 5 mg/L of a total of components (A) and (B) by weight based on a total volume of the fuel composition.

11 . A method for synergistically maintaining an absolute value of surface voltage of a distillate fuel below 1000 volts comprising providing a distillate fuel and adding to the fuel
A) from about 0.25 to about 2.5 mg/L by weight based on a total volume of the fuel composition of a mixture of (i) alkenyl polysulfone polymer, (ii) hydrocarbyl substituted maleic/polyamine copolymer, (iii) sulfonic acid, and (iv) aromatic solvent; and B) from about 0.25 to about 2.5 mg/L by weight based on a total volume of the fuel composition of a mixture of (i) alkenyl polysulfone polymer, (v) polymeric reaction product of a C 8 -C 18 aliphatic amine or diamine with epichlorohydrin; (iii) sulfonic acid, (iv) aromatic solvent; and optionally (vi) a quaternary ammonium compound.

12 . The method of claim 11 , wherein an amount of (i) in each of components (A) and (B) ranges from about 10 to about 20% by weight based on a total weight of each component, an amount of (iii) in each of components (A) and (B) ranges from about 5 to about 15% by weight based on a total weight of each component, and an amount of (iv) in each of components (A) and (B) ranges from about 50 to about 80% by weight based on a total weight of each component.

13 . The method of claim 11 , wherein an amount of (ii) in component (A) ranges from about 8 to about 15% by weight of a total weight of component (A), an amount of (v) in component (B) ranges from about 1 to about 10% by weight of a total weight of component (B), and an amount of (vi) in component (B) ranges from about 1 to about 5% by eight of a total weight of component (B).

14 . A method for synergistically maintaining an absolute value of surface voltage of a distillate fuel below 1000 volts comprising:
providing a first distillate fuel and adding to the first fuel a fuel additive (A) comprising from about 0.25 to about 5 mg/L by weight based on a total volume of the first fuel composition of a mixture of (i) alkenyl polysulfone polymer, (ii) hydrocarbyl substituted maleic/polyamine copolymer, (iii) sulfonic acid, and (iv) aromatic solvent; providing a second distillate fuel and adding to the second fuel a fuel additive (B) comprising from about 0.25 to about 5 mg/L by weight based on a total volume of the second fuel composition of a mixture of (i) alkenyl polysulfone polymer, (v) polymeric reaction product of a C 8 -C 18 aliphatic amine or diamine with epichlorohydrin; (iii) sulfonic acid, (iv) aromatic solvent; and optionally (vi) a quaternary ammonium compound; and mixing the first fuel and the second fuel in a volume ratio of 0.1:1 to 10:1.

15 . The method of claim 14 , wherein an amount of (i) in each of components (A) and (B) ranges from about 10 to about 20% by weight based on a total weight of each component, an amount of (iii) in each of components (A) and (B) ranges from about 5 to about 15% by weight based on a total weight of each component, and an amount of (iv) in each of components (A) and (B) ranges from about 50 to about 80% by weight based on a total weight of each component.

16 . The method of claim 14 , wherein an amount of (ii) in component (A) ranges from about 8 to about 15% by weight of a total weight of component (A), an amount of (v) in component (B) ranges from about 1 to about 10% by weight of a total weight of component (B), and an amount of (vi) in component (B) ranges from about 1 to about 5% by eight of a total weight of component (B).

Assignees

• Afton Chemical Corp

Inventors

• Regrut Jon A

Classifications

• C10L1/24

  containing sulfur, selenium and/or tellurium · CPC title

• C10L1/2383

  Polyamines or polyimines, or derivatives thereof {(poly)amines and imines; derivatives thereof (substituted by a macromolecular group containing 30C) (C10L1/221 takes precedence)} · CPC title

• C10L1/1275

  sulfur, tellurium, selenium containing compounds · CPC title

• C10L10/00

  Use of additives to fuels or fires for particular purposes (additives for liquid carbonaceous fuels characterised by their chemical nature C10L1/10; using binders for briquetting solid fuels C10L5/10; using additives to improve the combustion of solid fuels C10L9/10) · CPC title

• C10L1/2468

  obtained by reactions involving only carbon to carbon unsaturated bonds; derivatives thereof · CPC title