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WO2008134023A1 - Compositions de nettoyage - Google Patents

Compositions de nettoyage Download PDF

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Publication number
WO2008134023A1
WO2008134023A1 PCT/US2008/005403 US2008005403W WO2008134023A1 WO 2008134023 A1 WO2008134023 A1 WO 2008134023A1 US 2008005403 W US2008005403 W US 2008005403W WO 2008134023 A1 WO2008134023 A1 WO 2008134023A1
Authority
WO
WIPO (PCT)
Prior art keywords
weight
cleaning
cleaning composition
glycol
engine
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/US2008/005403
Other languages
English (en)
Inventor
Tamara S. Hofstetter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Caterpillar Inc
Original Assignee
Caterpillar Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Caterpillar Inc filed Critical Caterpillar Inc
Publication of WO2008134023A1 publication Critical patent/WO2008134023A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/50—Solvents
    • C11D7/5004—Organic solvents
    • C11D7/5018—Halogenated solvents
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/02—Inorganic compounds
    • C11D7/04—Water-soluble compounds
    • C11D7/06—Hydroxides
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/22—Organic compounds
    • C11D7/26—Organic compounds containing oxygen
    • C11D7/261—Alcohols; Phenols
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/22—Organic compounds
    • C11D7/26—Organic compounds containing oxygen
    • C11D7/263—Ethers
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/22—Organic compounds
    • C11D7/32—Organic compounds containing nitrogen
    • C11D7/3209—Amines or imines with one to four nitrogen atoms; Quaternized amines
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/22—Organic compounds
    • C11D7/32—Organic compounds containing nitrogen
    • C11D7/3281—Heterocyclic compounds
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/50—Solvents
    • C11D7/5004—Organic solvents
    • C11D7/5022—Organic solvents containing oxygen
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D2111/00—Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
    • C11D2111/10—Objects to be cleaned
    • C11D2111/14—Hard surfaces
    • C11D2111/20—Industrial or commercial equipment, e.g. reactors, tubes or engines

Definitions

  • This disclosure relates generally to cleaning compositions and methods, more particularly to those suitable for cleaning engine or machine parts.
  • CAT Hydrosolv 4165 also known as CAT HD Pressure Wash
  • That cleaner includes the following ingredients: ethylene glycol butyl ether, triethanolamine, sodium hydroxide, and tetrasodium salt of ethylenediaminetetraacetic acid.
  • New cleaning compositions continue to be developed for a variety of applications in different environments.
  • the disclosure provides cleaning compositions and related methods and compositions.
  • a cleaning composition of the disclosure comprises at least one solvent, at least one alkali metal hydroxide, at least one amine; at least one glycol, and at least one hydroxy alcohol.
  • the cleaning composition may further comprise water.
  • the cleaning composition is effective for cleaning at least one component of an engine.
  • the cleaning composition has a combined amount of at least one solvent, at least one alkali metal hydroxide, and optionally at least one hydroxyl alcohol that is effective for cleaning at least one component of an engine.
  • the cleaning composition has a freezing point at or below -10 °C, - 15 °C, -20 °C, -22 0 C, -25 °C, -28 °C, -30 °C, -32 °C, -35 °C, -38 °C, -40 °C, -42 °C, -45 °C, -48 °C, -50 °C, -55 °C, or -60 °C.
  • the cleaning composition has a combined amount of at least one glycol and at least one hydroxy alcohol that is effective for maintaining the freezing point at or below the desired temperature.
  • a cleaning composition of the disclosure may include at least one glycol ether, at least one glycol, at least one hydroxy alcohol, at least one amine, and at least one alkali metal hydroxide.
  • the cleaning composition is effective for cleaning at least one component of an engine.
  • the cleaning composition has a freezing point at or below -10 °C.
  • the cleaning apparatus may comprise a cleaning composition of the disclosure.
  • a further aspect of the disclosure provides a regeneration assembly for regenerating a filter assembly of an engine, and the regeneration assembly may comprise a cleaning apparatus of the disclosure.
  • the engine may comprise a cleaning apparatus of the disclosure.
  • the engine may also comprise a regeneration assembly of the disclosure.
  • the engine may further comprise a sensor operably linked to the cleaning apparatus, wherein the sensor detects contaminants in a component of the engine and thereby activates the cleaning apparatus.
  • a further aspect of the disclosure provides a cleaning kit.
  • the cleaning kit may comprise a cleaning composition of the disclosure.
  • the cleaning kit may further comprise instructions for use.
  • the collection device can be used to collect and optionally store a cleaning composition after being used.
  • the collection device may be part of an engine of the disclosure.
  • a further aspect of the disclosure provides a method of cleaning at least one component of an engine, such as, for example, a fuel supply component.
  • the method comprises contacting the at least one component with a cleaning composition of the disclosure.
  • a machine including an engine described herein, which comprises a cleaning composition of the disclosure.
  • a cleaning composition of the disclosure comprises at least one solvent, at least one alkali metal hydroxide, at least one amine; at least one glycol, and at least one hydroxy alcohol.
  • the cleaning composition may further include water.
  • the at least one solvent can be a glycol ether.
  • the glycol ether can be chosen from ethylene glycol monobutyl ether, diethylene glycol monobutyl ether (2-(2-butoxyethoxy)ethanol), ethylene glycol monoethyl ether, ethylene glycol monomethyl ether, diethylene glycol monomethyl ether and diethylene glycol monoethyl ether.
  • the at least one solvent can be present in the cleaning compositions of the disclosure in an amount ranging from 3-30% by weight, such as, for example, from 3-25% by weight, from 3-20% by weight, from 3-15% by weight, from 3-10% by weight, from 5-30% by weight, from 5-25% by weight, from 5-20% by weight, from 5-15% by weight, from 5-10% by weight, from 10- 30% by weight, from 10-25% by weight, from 10-20% by weight, from 10-15% by weight, from 15-30% by weight, from 15-25% by weight, from 15-20% by weight, from 20-30% by weight, from 20-25% by weight, from 6-14% by weight, from 7-13% by weight, from 8-12% by weight, or from 9-11% by weight.
  • 3-30% by weight such as, for example, from 3-25% by weight, from 3-20% by weight, from 3-15% by weight, from 3-10% by weight, from 5-30% by weight, from 5-25% by weight, from 5-20% by weight, from 5-15% by weight
  • the at least one glycol ether can be diethylene glycol monobutyl ether (also known as 2-(2-butoxyethoxy)ethanol).
  • a cleaning composition of the disclosure may comprise, by weight, 3-30% of 2- (2-butoxyethoxy)ethanol.
  • the cleaning composition may comprise, for example, by weight, 5-15% of 2-(2-butoxyethoxy)ethanol.
  • the cleaning composition may include, by weight, 6-14% of 2-(2-butoxyethoxy)ethanol.
  • the cleaning composition may include, by weight, 7-13% of 2-(2-butoxyethoxy)ethanol.
  • the cleaning composition may include, by weight, 8-12% of 2-(2- butoxyethoxy)ethanol.
  • the cleaning composition may include, by weight, 9-11% of 2-(2-butoxyethoxy)ethanol.
  • a cleaning composition may include, by weight, an amount of 2- (2-butoxyethoxy)ethanol that is at or below a concentration limit set forth by a regulatory agency. For example, Environment Canada published final regulations on December 27, 2006 restricting the use of 2-butoxyethanol for indoor use products, which includes a concentration limit of 10% (w/w) of 2- butoxyethanol in automobile cleaners (excluding automobile degreasers) and concentration limits of 2-butoxyethanol for other cleaning or coating products.
  • the cleaning compositions of the present disclosure comprise at least one glycol.
  • the at least one glycol can be chosen from propylene glycol, monoethylene glycol (also known as 1 ,2-ethanediol), diethylene glycol, hexylene glycol (2-methyl-2, 4 pentanediol), triethylene glycol, and dipropylene glycol.
  • the at least one glycol can be present in the cleaning compositions of the disclosure in an amount ranging from 5-70% by weight, such as, for example, from 5-65% by weight, from 5-60% by weight, from 5-55% by weight, from 5-50% by weight, from 5-45% by weight, from 5-40% by weight, from 5- 35% by weight, from 5-30% by weight, from 5-25% by weight, from 5-20% by weight, from 5-15% by weight, from 5-10% by weight, from 10-70% by weight, from 10-65% by weight, from 10-60% by weight, from 10-55% by weight, from 10-50% by weight, from 10-45% by weight, from 10-40% by weight, from 10- 35% by weight, from 10-30% by weight, from 10-25% by weight, from 10-20% by weight, from 10-15% by weight, from 15-70% by weight, from 15-65% by weight, from 15-60% by weight, from 15-55% by weight, from 15-50% by weight, from 15-45% by weight, from 15-40% by weight, from 15-35% by weight,
  • the at least one glycol can be 1 ,2- ethanediol.
  • the cleaning composition may include 1,2- ethanediol in an amount ranging from 5-70% by weight, such as, for example, from 5-65% by weight, from 5-60% by weight, from 5-55% by weight, from 5- 50% by weight, from 5-45% by weight, from 5-40% by weight, from 5-35% by weight, from 5-30% by weight, from 5-25% by weight, from 5-20% by weight, from 5- 15% by weight, from 5-10% by weight, from 10-70% by weight, from 10- 65% by weight, from 10-60% by weight, from 10-55% by weight, from 10-50% by weight, from 10-45% by weight, from 10-40% by weight, from 10-35% by weight, from 10-30% by weight, from 10-25% by weight, from 10-20% by weight, from 10-15% by weight, from 15-70% by weight, from 15-65% by weight, from 15-60% by weight, from 15-55% by weight, from 10-20% by weight, from
  • the cleaning compositions of the present disclosure comprise at least one hydroxy alcohol. In certain embodiments, the cleaning compositions of the present disclosure comprise at least one monohydroxy alcohol. In alternative embodiments, the cleaning compositions of the present disclosure comprise at least one polyhydroxy alcohol. In other embodiments, the cleaning compositions of the present disclosure comprise a combination of at least one monohydroxy alcohol and at least one polyhydroxy alcohol.
  • the at least one hydroxy alcohol can be present in the cleaning compositions of the disclosure in an amount ranging from 5-40% by weight, such as, for example, from 5-35% by weight, from 5-30% by weight, from 5-25% by weight, from 5-20% by weight, from 5-15% by weight, from 5-10% by weight, from 10-40% by weight, from 10-35% by weight, from 10-30% by weight, from 10-25% by weight, from 10-20% by weight, from 10-15% by weight, 15-40% by weight, from 15-35% by weight, from 15-30% by weight, from 15-25% by weight, from 15-20% by weight, 20-40% by weight, from 20-35% by weight, from 20-30% by weight, from 20-25% by weight, from 25-40% by weight, from 25-35% by weight, from 25-30% by weight, 30-40% by weight, and from 35- 45% by weight.
  • the at least one hydroxy alcohol can be a monohydroxy alcohol chosen from isopropanol, n-propanol, isobutanol, and ethanol. In certain embodiments, the at least one hydroxy alcohol can be a polyhydroxy alcohol chosen from glycerol, sorbitol, and xylitol.
  • a cleaning composition of the disclosure may include isopropanol.
  • the cleaning composition may comprise isopropanol in an amount ranging from 5-40% by weight, such as, for example, from 5-35% by weight, from 5-30% by weight, from 5-25% by weight, from 5-20% by weight, from 5-15% by weight, from 5-10% by weight, from 10-40% by weight, from 10- 35% by weight, from 10-30% by weight, from 10-25% by weight, from 10-20% by weight, from 10-15% by weight, 15-40% by weight, from 15-35% by weight, from 15-30% by weight, from 15-25% by weight, from 15-20% by weight, 20- 40% by weight, from 20-35% by weight, from 20-30% by weight, from 20-25% by weight, from 25-40% by weight, from 25-35% by weight, from 25-30% by weight, 30-40% by weight, and from 35-45% by weight.
  • the cleaning compositions of the present disclosure further comprise at least one amine.
  • the at least one amine can be chosen from triethanolamine, monoethanolamine, diethanolamine, monoisopropanolamine, diisopropanolamine, triisopropanolamine, monomethylamine, dimethylamine, ethylenediamine, propylenediamine, cyclohexylamine, diethylethanolamine, ethyl diethanolamine, and morpholine.
  • the at least one amine can be present in the cleaning compositions of the disclosure in an amount ranging from 1-15% by weight, such as, for example, from 1-13% by weight, from 1-12% by weight, from 1-10% by weight, from 1-8% by weight, from 1-7% by weight, from 1-5% by weight, from 1-3% by weight, from 2-15% by weight, from 2-13% by weight, from 2-12% by weight, from 2-10% by weight, from 2-8% by weight, from 2-7% by weight, from 2-5% by weight, from 3-15% by weight, from 3-13% by weight, from 3- 12% by weight, from 3-10% by weight, from 3-8% by weight, from 3-7% by weight, from 3-5% by weight, from 4-15% by weight, from 4-13% by weight, from 4- 12% by weight, from 4- 10% by weight, from 4-8% by weight, from 4-7% by weight, from 5-15% by weight, from 5-13% by weight, from 5-12% by weight, from 5-10% by weight, from 5-8% by weight, from 5-7% by weight, from 7-15% by weight
  • the at least one amine can be triethanolamine.
  • the cleaning composition of the present disclosure can comprise triethanolamine in an amount ranging from 1-15% by weight, such as, for example, from 1-13% by weight, from 1-12% by weight, from 1-10% by weight, from 1-8% by weight, from 1-7% by weight, from 1-5% by weight, from 1-3% by weight, from 2-15% by weight, from 2-13% by weight, from 2-12% by weight, from 2-10% by weight, from 2-8% by weight, from 2-7% by weight, from 2-5% by weight, from 3-15% by weight, from 3-13% by weight, from 3-12% by weight, from 3-10% by weight, from 3-8% by weight, from 3-7% by weight, from 3-5% by weight, from 4-15% by weight, from 4-13% by weight, from 4-12% by weight, from 4-10% by weight, from 4-8% by weight, from 4-7% by weight, from 5-15% by weight, from 5-13% by weight, from 5-12% by weight, from 5-10% by weight, from 5-8%
  • the cleaning composition s of the present disclosure further comprise at least one alkaline metal hydroxide.
  • the at least one metal hydroxide can be chosen from potassium hydroxide or sodium hydroxide.
  • the at least one alkaline metal hydroxide can be present in the cleaning compositions of the disclosure in an amount ranging from 0.5-10% by weight, such as, for example, from 0.5-8% by weight, from 0.5-7% by weight, from 0.5-5% by weight, from 0.5-4% by weight, from 0.5-3% by weight, from 0.5-2% by weight, from 1-10% by weight, such as, for example, from 1-8% by weight, from 1-7% by weight, from 1-5% by weight, from 1-4% by weight, from 1-3% by weight, from 2-10% by weight, from 2-8% by weight, from 2-7% by weight, from 2-5% by weight, from 2-4% by weight, from 3-10% by weight, from 3-8% by weight, from 3-7% by weight, from 3-5% by weight, from 4-10% by weight, from 4-8% by weight, from 4-7% by weight, from 5-10% by weight, from 5-8% by weight, and from 5-7% by weight.
  • 1-10% by weight such as, for example, from 1-8% by weight, from 1-7% by weight, from 1-
  • a cleaning composition may include potassium hydroxide.
  • the cleaning composition may include potassium hydroxide in an amount ranging from 0.5-10% by weight, such as, for example, from 0.5-8% by weight, from 0.5-7% by weight, from 0.5-5% by weight, from 0.5-4% by weight, from 0.5-3% by weight, from 0.5-2% by weight, from 1-10% by weight, such as, for example, from 1-8% by weight, from 1-7% by weight, from 1-5% by weight, from 1-4% by weight, from 1-3% by weight, from 2-10% by weight, from 2-8% by weight, from 2-7% by weight, from 2-5% by weight, from 2-4% by weight, from 3-10% by weight, from 3-8% by weight, from 3-7% by weight, from 3-5% by weight, from 4-10% by weight, from 4-8% by weight, from 4-7% by weight, from 5-10% by weight, from 5-8% by weight, and from 5-7% by weight.
  • the cleaning composition of the present disclosure can be used and is effective for cleaning at least one component of an engine.
  • the cleaning composition is not required to remove 100% of the contaminants of the at least one component of an engine.
  • the cleaning composition may have different levels of effectiveness under different conditions, such as for example, humidity, temperature, time length of contact between the engine component and the cleaning composition. Further, different circumstances may mandate difference levels of effective cleaning. For example, under certain conditions, 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80% or greater removal of contaminants of an engine component may be considered “effective.”
  • the cleaning composition has a combined amount of at least one solvent, at least one alkali metal hydroxide, and optionally at least one hydroxyl alcohol that is effective for cleaning at least one component of an engine.
  • the cleaning composition can be used for cleaning a fuel injector, such as for example, a fuel injector of an engine including, for example, a nozzle of the fuel injector.
  • the fuel injector in certain embodiments, may be a fuel injector of a regeneration assembly of an engine, also known as an afterburner. An example of a regeneration assembly is described in U.S. Application Serial Nos. 11/503,306 and 11/641,777.
  • the fuel supply component cleaning systems described in those two patent applications may employ a cleaning composition of the present disclosure.
  • the cleaning composition has a freezing point at or below -10 °C, such as, for example, at or below -15 °C, at or below - 20 °C, at or below -22 °C, at or below -25 °C, at or below -28 °C, at or below -30 °C, at or below -32 °C, at or below -35 0 C, at or below -38 °C, at or below -40 °C, at or below -42 °C, at or below -45 °C, at or below -48 °C, at or below -50 °C, at or below -55 °C, and at or below -60 °C.
  • the cleaning composition has a combined amount of at least one glycol and at least one hydroxy alcohol that is effective for maintaining the freezing point at or below the desired temperature.
  • the cleaning composition of the present disclosure may comprise 2-(2-butoxyethoxy)ethanol, 1 ,2-ethanediol, isopropanol, triethanolamine, and potassium hydroxide.
  • the cleaning composition may further comprise water.
  • the cleaning composition can comprise, by weight, 3-30% of 2-(2-butoxyethoxy)ethanol, 5-70% of 1 ,2- ethanediol, 5-30% of isopropanol, 1-15% of triethanolamine, and 0.5-10% of potassium hydroxide.
  • the cleaning composition can comprise, by weight, 5- 15% of 2-(2-butoxyethoxy)ethanol, 30-50% of 1 ,2- ethanediol, 10-20% of isopropanol, 3-7% of triethanolamine, and 1-5% of potassium hydroxide.
  • the cleaning composition can comprise, by weight, 7-13% of 2-(2-butoxyethoxy)ethanol, 30-50% of 1,2- ethanediol, 10-20% of isopropanol, 3-7% of triethanolamine, and 1-5% of potassium hydroxide.
  • the cleaning composition of the present disclosure can comprise, by weight, 3-30% of at least one glycol ether, 5- 70% of at least one glycol, 5-30% of at least one hydroxyl alcohol, 1-15% of at least one amine, and 0.5-10% of at least one alkaline metal hydroxide.
  • the cleaning composition can comprise, by weight, 3-30% of at least one glycol ether chosen from ethylene glycol monobutyl ether, diethylene glycol monobutyl ether (2-(2-butoxyethoxy)ethanol), ethylene glycol monoethyl ether, ethylene glycol monomethyl ether, diethylene glycol monomethyl ether and diethylene glycol monoethyl ether; 5-70% of at least one glycol chosen from propylene glycol, monoethylene glycol (1,2-ethanediol), diethylene glycol, hexylene glycol (2-methyl-2, 4 pentanediol), triethylene glycol, and dipropylene glycol; 5-30% of at least one hydroxyl alcohol chosen from isopropanol, n- propanol, isobutanol, ethanol, glycerol, sorbitol, and xylitol; 1-15% of at least one amine chosen from triethanolamine, monoethanolamine, diethanolamine,
  • the disclosure also provides a cleaning apparatus that comprises a cleaning composition described herein.
  • the cleaning apparatus may comprise a suitable container for housing the cleaning composition.
  • the cleaning apparatus may further comprise a device or system for dispensing the cleaning composition for use.
  • the cleaning apparatus may be a component of an engine.
  • the disclosure further provides a regeneration assembly, which may be used for regenerating a filter assembly in an aftertreatment system for an engine.
  • An aftertreatment system generally refers to a system for decreasing the amount of emissions exhausted by an engine including diesel engines, gasoline engines, natural gas engines, and other engines in the art.
  • An aftertreatment system may employ exhaust treatment devices such as particulate filters to remove particulate matter from the exhaust flow to control emissions.
  • a particular filter may include filter material designed to capture particulate matter. After an extended period of use, however, the filter material may become partially saturated with particulate matter, such as soot. This partial saturation may hinder the ability of the particulate filter to remove particulates from the exhaust flow.
  • the collected particulate matter may be removed from the filter material through a process called regeneration.
  • a particulate filter may be regenerated by increasing the temperature of the filter materials and the particulate matter in the filter material above the combustion temperature of the particulate matter. For regeneration to occur, oxygen must be available to facilitate oxidation of the soot. The increase in temperature results in oxidation of the collected particulate matter.
  • the increase in temperature to support oxidation of soot may be effectuated by a regeneration assembly including a combustion chamber.
  • the combustion chamber may require a fuel injector unit for fuel that is to be ignited within the combustion chamber.
  • a fuel supply circuit including at least one flow passages, may be provided for delivering the fuel from a source to the fuel injector unit. During regeneration, fuel may flow through the fuel supply circuit and the fuel injector unit to support combustion within the regeneration assembly.
  • the supply of fuel to the regeneration assembly may be shut off.
  • fuel may remain within the fuel supply circuit and the fuel injector unit.
  • the fuel injector unit an/or fuel supply circuit may be subjected to a build-up of substances that may be contained within or derived from fuel remaining within the fuel injector unit and/or fuel supply circuit. These substances are considered as contaminants of the fuel injector unit and/or fuel supply circuit.
  • contaminants are considered as contaminants of the fuel injector unit and/or fuel supply circuit.
  • the environment is conducive to a build-up of carbon deposits.
  • Such a build-up of substances or contaminants may inhibit proper operation of the fuel injector unit and/or fuel supply circuit, and may adversely affect performance of the regeneration assembly.
  • Nozzle purging of fuel injector units may be effective in removing fuel from a fuel injector unit.
  • residual fuel may remain in the fuel supply circuit after regeneration, and may leak toward the fuel injector unit.
  • valves in the fuel supply circuit may be subject to seepage or leakage, resulting in fuel leaking to the fuel injector after purging.
  • the fuel injector unit may be exposed to contact with non-flowing fuel for a time sufficient to cause a build-up of deposits or contaminants, which may adversely affect fuel delivery to the regeneration assembly. Such a build-up may require fuel injector unit removal for cleaning, or replacement, and resulting downtime.
  • U.S. Application Serial No. 11/641,777 provides systems and methods for cleaning fuel supply components, particularly those components for supplying fuel to a regeneration assembly.
  • the cleaning compositions and apparatuses of the present disclosure may be employed in those cleaning systems and methods.
  • a method for cleaning the fuel supply components may comprise operating a regeneration assembly to regenerate a filter assembly during a regeneration cycle, and supplying fuel through a fuel flow path to at least one fuel injector unit associated with the regeneration assembly during the regeneration cycle.
  • the method may further comprise dispensing a cleaning composition of the present disclosure into the fuel flow path during a cleaning cycle.
  • the method may also comprise directing the cleaning composition through the at least one fuel injector unit during the cleaning cycle.
  • Certain embodiments also provide a system including a regeneration assembly configured to regenerate a filter assembly during a regeneration cycle, and a combustion chamber associated with the regeneration assembly.
  • the system may further comprise a fuel injector unit for injecting fuel into the combustion chamber during the regeneration cycle.
  • the system may also comprise a fuel flow path configured to direct fuel to the fuel injector unit.
  • the system may further comprise a cleaning apparatus configured for dispensing a cleaning composition of the disclosure into the fuel flow path for cleaning the fuel injector unit during a cleaning cycle.
  • Other embodiments provide a machine that includes an engine system having an exhaust flow path. The machine comprises a filter assembly in the exhaust flow path.
  • the machine also comprises a regeneration assembly proximate the exhaust flow path upstream of the filter assembly, the regeneration assembly including a combustion chamber and configured to regenerate the filter assembly during a regeneration cycle.
  • the machine also comprises at least one fuel supply circuit and at least one fuel injector unit associated with the combustion chamber.
  • the machine further comprises a cleaning apparatus configured to dispense a cleaning composition of the present disclosure into the at least one fuel supply circuit and to the at least one fuel injector unit.
  • the cleaning apparatus can be operably linked to a fuel supply circuit and/or a fuel injector unit.
  • Certain embodiments may also comprise a sensor operably linked to the cleaning apparatus, wherein the sensor detects contaminants in the fuel supply components and thereby switches on the cleaning apparatus.
  • the sensor may be operably linked to an engine Electronic Control Module.
  • certain embodiments provide a method of cleaning at least one component of an engine or machine comprising contacting the at least one component with a cleaning composition of the present disclosure.
  • the cleaning is conducted at or after the cleaning composition has been subjected to an outdoor temperature below -20 °C.
  • the method may also comprise detecting contamination of the at least component of the engine and switching on a cleaning apparatus when the contamination is detected, thereby contacting the at least one component with the cleaning composition.
  • a method of the disclosure may further comprise collecting and disposing of the cleaning composition after contacting the at least one component.
  • the disclosure further provides a cleaning kit.
  • the cleaning kit may comprise a cleaning composition of the disclosure.
  • the cleaning kit may further comprise instructions for use.
  • the cleaning kit may also comprise at least one protective gear to prevent direct contact of the cleaning composition with an operator's skin or eye.
  • the cleaning kit may further comprise a collection device for collecting and optionally storing the cleaning composition after its use.
  • the disclosure also provides a collection device for collecting and optionally storing the cleaning composition after its use.
  • the collection device may be a component of an engine or a machine of the disclosure.
  • the cleaning compositions, and related methods and compositions described herein may have a variety of applications.
  • a fuel supply component cleaning system as described in U.S. Application Serial Nos. 11/503,306 and 11/641,777 may employ a cleaning composition or a cleaning apparatus of the disclosure.
  • the cleaning compositions and methods described herein will facilitate cleaning of one or more fuel supply components, such as a fuel injector unit, so as to remove undesirable deposits or contaminants that accumulate due to the presence of fuel. It will be apparent to those having ordinary skill in the art that various modifications and variations can be made to the disclosed compositions and methods without departing from the scope of the disclosure.

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Inorganic Chemistry (AREA)
  • Detergent Compositions (AREA)

Abstract

L'invention concerne des compositions de nettoyage, en particulier des compositions aptes au nettoyage de composants de moteurs ou de machines. L'invention se rapporte en outre à des procédés et des compositions faisant appel aux compositions précitées, tels que, par exemple, des procédés d'emploi, un appareil de nettoyage et une trousse de nettoyage.
PCT/US2008/005403 2007-04-25 2008-04-25 Compositions de nettoyage Ceased WO2008134023A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US92608907P 2007-04-25 2007-04-25
US60/926,089 2007-04-25

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WO2008134023A1 true WO2008134023A1 (fr) 2008-11-06

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PCT/US2008/005403 Ceased WO2008134023A1 (fr) 2007-04-25 2008-04-25 Compositions de nettoyage

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110284033A1 (en) * 2010-05-21 2011-11-24 Taylor Patrick J Cleaning of natural gas ash deposits from combustion chambers
CN105400616A (zh) * 2015-12-15 2016-03-16 广东环凯微生物科技有限公司 一种具有防冻效果的cip碱性清洗剂及其制备方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3839234A (en) * 1973-01-26 1974-10-01 C Roscoe Multi-purpose cleaning concentrate
US5972874A (en) * 1995-06-02 1999-10-26 Ashland Inc. Stable microemulsion cleaners having low volatile organic content
US20020107161A1 (en) * 2000-12-07 2002-08-08 3M Innovative Properties Company Engine cleaner composition
US20030040448A1 (en) * 2001-08-14 2003-02-27 Messina Frank A. Decarbonization/conditioning formulation for internal combustion engines and method therefore

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3839234A (en) * 1973-01-26 1974-10-01 C Roscoe Multi-purpose cleaning concentrate
US5972874A (en) * 1995-06-02 1999-10-26 Ashland Inc. Stable microemulsion cleaners having low volatile organic content
US20020107161A1 (en) * 2000-12-07 2002-08-08 3M Innovative Properties Company Engine cleaner composition
US20030040448A1 (en) * 2001-08-14 2003-02-27 Messina Frank A. Decarbonization/conditioning formulation for internal combustion engines and method therefore

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110284033A1 (en) * 2010-05-21 2011-11-24 Taylor Patrick J Cleaning of natural gas ash deposits from combustion chambers
JP2013527374A (ja) * 2010-05-21 2013-06-27 シェブロン ユー．エス．エー． インコーポレイテッド 燃焼室からの天然ガス灰沈着物の清掃
CN105400616A (zh) * 2015-12-15 2016-03-16 广东环凯微生物科技有限公司 一种具有防冻效果的cip碱性清洗剂及其制备方法

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