Fuel additive composition containing a dispersion of iron particles and a detergent

Patent metadata

Field	Value
Publication number	US-9914892-B2
Application number	US-201113996587-A
Country	US
Kind code	B2
Filing date	Dec 20, 2011
Priority date	Dec 22, 2010
Publication date	Mar 13, 2018
Grant date	Mar 13, 2018

Abstract

A composition contains an additive for assisting with regeneration of the PF in the form of an organic dispersion of iron particles in crystallized form and a detergent including a quaternary ammonium salt.

First claim

The invention claimed is:

1. A composition comprising a dispersion and a detergent comprising a quaternary ammonia salt, said dispersion comprising:
an organic phase;
at least one amphiphilic agent, and
solid objects dispersed in the organic phase, in the form of individualized particles or particle aggregates, consisting of an iron compound in crystallized form, such that said particles have an average size D XRD of less than or equal to 12 nm as measured by X-ray diffraction, the particles have a median diameter φ 50 comprised between 3 nm and 12 nm,

wherein said quaternary ammonia salt comprises a reaction product:
(i) of at least one compound which may comprise:
(a) the condensation product of an acylation agent with hydrocarbon substitution and of a compound comprising an oxygen or nitrogen atom capable of condensing the acylation agent, the condensation product having at least one tertiary amine function;
(b) and amine with polyalkene substitution comprising at least one tertiary amine function; and
(c) a Mannich reaction product comprising at least one tertiary amine function, the Mannich reaction product being derived from a phenol with hydrocarbon substitution, from an aldehyde and from an amine; and

(ii) of a suitable quaternization agent for converting the tertiary amine function of the compound (i) into a quaternary nitrogen, and

wherein the iron content is comprised between 0.05% and 25% by weight of iron metal based on the total weight of said composition.

2. The composition according to claim 1 , further comprising an oxygenated detergent additive.

3. The composition according to claim 1 , wherein the quaternary ammonium salt comprises the product of the reaction:
(i) of the condensation product of an acylation agent with hydrocarbon substitution and of a compound comprising an oxygen or nitrogen atom capable of fusing the acylation agent, the condensation product having at least one tertiary amine function; and
(ii) of a quaternization agent comprising dialkyl sulfates, benzyl halides, carbonates with hydrocarbon substitution, epoxides with hydrocarbon substitution in combination with an acid or mixtures thereof.

4. The composition according to claim 3 , wherein the acylation agent with hydrocarbon substitution is succinic polyisobutylene anhydride and the compound including an oxygen or nitrogen atom capable of fusing said acylation agent is selected from dimethylaminopropylamine, N-methyl-1,3-diaminopropane, N,N-dimethylaminopropylamine, N,N-diethylaminopropylamine, N,N-dimethyl-aminoethylamine, diethylenetriamine, dipropylenetriamine, dibutylenetriamine, triethylenetetraamine, tetraethylenepentaamine, pentaethylenehexaamine, hexamethylenetetraamine and bis(hexamethylene)triamine.

5. The composition according to claim 1 , wherein the oxygenated detergent additive is a polyisobutylene compound including a succinic anhydride or succinic acid head group.

6. The composition according to claim 1 , wherein the average size D XRD of the particles is less than or equal to 8 nm.

7. The composition according to claim 1 , wherein the organic phase of the dispersion is based on an apolar hydrocarbon.

8. The composition according to claim 1 , wherein the amphiphilic agent is a carboxylic acid which generally includes from 10 to 50 carbon atoms.

9. The composition according to claim 1 , wherein at least 80% by number of the particles have a size D TEM of less than or equal to 12 nm as measured by transmission microscopy.

10. The composition according to claim 1 , wherein the solid objects of the invention have a hydrodynamic diameter D h of less than or equal to 50 nm as measured by dynamic light scattering.

11. The composition according to claim 1 wherein the molar ratio between the number of moles of amphiphilic agent and the number of moles of iron is comprised from 0.2 to 1.

12. A fuel additive for internal combustion engines consisting of the composition according to claim 1 .

13. A method for preparing a composition comprising a step for putting into contact and mixing a detergent comprising a quaternary ammonium salt and a dispersion, wherein the dispersion comprises:
an organic phase;
at least one amphiphilic agent, and
solid objects dispersed in the organic phase, in the form of individualized particles or particle aggregates, consisting of an iron compound in crystallized form, such that said particles have an average size D XRD of less than or equal to 12 nm as measured by X-ray diffraction, the particles have a median diameter φ 50 comprised between 3 nm and 12 nm,

wherein said quaternary ammonia salt comprises a reaction product:
(i) of at least one compound which may comprise:
(a) the condensation product of an acylation agent with hydrocarbon substitution and of a compound comprising an oxygen or nitrogen atom capable of condensing the acylation agent, the condensation product having at least one tertiary amine function;
(b) and amine with polyalkene substitution comprising at least one tertiary amine function; and
(c) a Mannich reaction product comprising at least one tertiary amine function, the Mannich reaction product being derived from a phenol with hydrocarbon substitution, from an aldehyde and from an amine; and

(ii) of a suitable quaternization agent for converting the tertiary amine function of the compound (i) into a quaternary nitrogen, and

wherein the iron content is comprised between 0.05% and 25% by weight of iron metal based on the total weight of said composition, whereby said composition is obtained.

14. An additived fuel comprising a fuel and a composition according to claim 1 .

15. The additived fuel according to claim 14 , wherein the fuel is selected from the group consisting of gas oils and biofuels.

16. The additived fuel according to claim 14 , wherein the iron mass content is comprised from 1 to 50 ppm, of iron metal based on the total mass of the fuel.

17. A method for applying an internal combustion engine comprising a step for delivering to said engine a fuel and a composition according to claim 1 .

18. A fuel additive for internal combustion engines consisting of a composition comprising a dispersion and a detergent comprising a quaternary ammonia salt, said dispersion comprising:
an organic phase,
only one amphiphilic agent, and
solid objects dispersed in the organic phase in the form of individualized particles or particle aggregates, consisting of an iron compound in crystallized form, such that said particles have an average size D XRD of less than of equal of 12 nm measured by X-ray diffraction.

19. The fuel additive according to claim 18 , wherein the amphiphilic agent is selected from the group consisting of: fatty acids of tall oil, soybean oil, tallow oil, lindseed oil, oleic acid, linoleic acid, stearic acid and its isomers, pelargonic acid, capric acid, lauric acid, myristic acid, dodecylbenzenesulfonic acid, ethyl-2-hexanoic acid, naphthenic acid, and hexanoic acid.

Assignees

• DALENCON Lauriane
• Lallemand Michael
• Harle Virginie
• Moreton David J
• Macduff Malcolm G J
• Pudlarz Magali
• Rhodia Operations
• Lubrizol Corp

Inventors

• D'Alencon Lauriane
• Lallemand Michael
• Harle Virginie
• Moreton David J
• Macduff Malcolm G J
• Pudlarz Magali

Classifications

• 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

• C10L1/238

  obtained otherwise than by reactions involving only carbon-to-carbon unsaturated bonds {(C10L1/221 takes precedence)} · CPC title

• C10L10/18

  use of detergents or dispersants for purposes not provided for in groups C10L10/02 - C10L10/16 · CPC title

• B01J13/0034

  Additives, e.g. in view of promoting stabilisation or peptisation · CPC title

• C10L1/1616

  fractions, e.g. lubricants, solvents, naphta, bitumen, tars, terpentine · CPC title