CN113025448B - Cleaning composition for engine fuel system deposits, preparation method thereof and method for cleaning engine fuel system deposits - Google Patents
Cleaning composition for engine fuel system deposits, preparation method thereof and method for cleaning engine fuel system deposits Download PDFInfo
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- CN113025448B CN113025448B CN202110213587.4A CN202110213587A CN113025448B CN 113025448 B CN113025448 B CN 113025448B CN 202110213587 A CN202110213587 A CN 202110213587A CN 113025448 B CN113025448 B CN 113025448B
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- 239000000446 fuel Substances 0.000 title claims abstract description 140
- 238000004140 cleaning Methods 0.000 title claims abstract description 121
- 239000000203 mixture Substances 0.000 title claims abstract description 89
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000002360 preparation method Methods 0.000 title abstract description 7
- IGFHQQFPSIBGKE-UHFFFAOYSA-N Nonylphenol Natural products CCCCCCCCCC1=CC=C(O)C=C1 IGFHQQFPSIBGKE-UHFFFAOYSA-N 0.000 claims abstract description 27
- SNQQPOLDUKLAAF-UHFFFAOYSA-N nonylphenol Chemical compound CCCCCCCCCC1=CC=CC=C1O SNQQPOLDUKLAAF-UHFFFAOYSA-N 0.000 claims abstract description 27
- 150000001412 amines Chemical class 0.000 claims abstract description 20
- QGLWBTPVKHMVHM-KTKRTIGZSA-N (z)-octadec-9-en-1-amine Chemical compound CCCCCCCC\C=C/CCCCCCCCN QGLWBTPVKHMVHM-KTKRTIGZSA-N 0.000 claims abstract description 18
- 235000014113 dietary fatty acids Nutrition 0.000 claims abstract description 17
- 229930195729 fatty acid Natural products 0.000 claims abstract description 17
- 239000000194 fatty acid Substances 0.000 claims abstract description 17
- 150000004665 fatty acids Chemical class 0.000 claims abstract description 17
- 229920006395 saturated elastomer Polymers 0.000 claims abstract description 14
- -1 dodecyl dimethyl tertiary amine Chemical class 0.000 claims description 13
- XDOFQFKRPWOURC-UHFFFAOYSA-N 16-methylheptadecanoic acid Chemical compound CC(C)CCCCCCCCCCCCCCC(O)=O XDOFQFKRPWOURC-UHFFFAOYSA-N 0.000 claims description 12
- 238000002485 combustion reaction Methods 0.000 claims description 10
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 9
- 229920000570 polyether Polymers 0.000 claims description 9
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 claims description 7
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 claims description 6
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 claims description 6
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 claims description 6
- SNRUBQQJIBEYMU-UHFFFAOYSA-N Dodecane Natural products CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 claims description 6
- 239000005642 Oleic acid Substances 0.000 claims description 6
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 claims description 6
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 238000012360 testing method Methods 0.000 description 73
- 239000007788 liquid Substances 0.000 description 16
- 239000003502 gasoline Substances 0.000 description 12
- 239000003921 oil Substances 0.000 description 9
- 238000004088 simulation Methods 0.000 description 9
- 239000012085 test solution Substances 0.000 description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 7
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 6
- 238000001556 precipitation Methods 0.000 description 5
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 239000013049 sediment Substances 0.000 description 4
- 239000000344 soap Substances 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- 238000013112 stability test Methods 0.000 description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- 239000003814 drug Substances 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000004075 alteration Effects 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 238000005345 coagulation Methods 0.000 description 2
- 230000015271 coagulation Effects 0.000 description 2
- ZSWFCLXCOIISFI-UHFFFAOYSA-N cyclopentadiene Chemical group C1C=CC=C1 ZSWFCLXCOIISFI-UHFFFAOYSA-N 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 239000002816 fuel additive Substances 0.000 description 2
- 239000002828 fuel tank Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 125000001183 hydrocarbyl group Chemical group 0.000 description 2
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 239000010692 aromatic oil Substances 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- XXUJMEYKYHETBZ-UHFFFAOYSA-N ethyl 4-nitrophenyl ethylphosphonate Chemical compound CCOP(=O)(CC)OC1=CC=C([N+]([O-])=O)C=C1 XXUJMEYKYHETBZ-UHFFFAOYSA-N 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 125000005702 oxyalkylene group Chemical group 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 229920013639 polyalphaolefin Polymers 0.000 description 1
- 229920000768 polyamine Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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
- C11D10/00—Compositions of detergents, not provided for by one single preceding group
- C11D10/04—Compositions of detergents, not provided for by one single preceding group based on mixtures of surface-active non-soap compounds and soap
- C11D10/045—Compositions of detergents, not provided for by one single preceding group based on mixtures of surface-active non-soap compounds and soap based on non-ionic surface-active compounds and soap
-
- 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
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/72—Ethers of polyoxyalkylene glycols
-
- C11D2111/20—
Abstract
The invention provides a cleaning composition for engine fuel system deposits, a preparation method thereof and a method for cleaning engine fuel system deposits. The engine fuel system deposit cleaning composition comprises, based on 100 wt.% of the total weight of the engine fuel system deposit cleaning composition: (a) 5-35 wt% oleylamine; (b) 2.5-35 wt.% fatty acid; (c) 5-65% by weight of saturated fatty amine; and (d) 0 to 87.5 weight percent nonylphenol polyetheramine. The cleaning composition for the deposits of the engine fuel system has good cleaning capability for the deposits of the engine fuel system and good low-temperature stability.
Description
Technical Field
The present invention relates to an engine fuel system deposit cleaning composition, a method of making an engine fuel system deposit cleaning composition and a method of cleaning engine fuel system deposits.
Background
Automotive engines are prone to deposit deposits on intake valve surfaces due to oxidation and polymerization of hydrocarbon fuels. These deposits, even in relatively small amounts, can significantly increase the fuel consumption of the automobile and the production of exhaust pollutants.
There are several cleaning agents available in the prior art for cleaning deposits from the fuel system of an automotive engine. For example, US5006130 discloses a fuel additive for reducing intake valve deposits in an electronic port fuel injected engine, said additive comprising (a) a mixture of about 2.5% (ppmw) or more of basic nitrogen, based on fuel composition, in the form of an oil soluble aliphatic alkylene polyamine having a molecular weight of from about 600 to about 10000, and (b) a fuel composition based on certain oil soluble olefinic polymers, poly (oxyalkylene) alcohols, ethylene glycol or polyols or mono or diethers, non aromatic oils or polyalphaolefins thereof, from about 75ppmw to about 125ppmw.
As another example, US5873917 discloses a fuel additive composition comprising (i) a polyether alcohol, wherein R is hydrogen or a hydrocarbyl group of 1 to about 30 carbon atoms; r1 is hydrogen or a hydrocarbon group consisting of 1 to 5 carbon atoms or a mixture thereof, the hydrogen in R1 is not more than 10 mole%, and the polyether alcohol is soluble in gasoline; x is a number from about 4 to about 40; (ii) (ii) an alkyl phenol having 1 to 3 alkyl groups and a total weight average molecular weight of about 250 to about 6000; and (iii) a third component optionally comprising a nitrogen-containing dispersant; wherein the weight ratio of polyether alcohol to hydrocarbyl phenol is from about 3: 1 to about 1: 20.
Disclosure of Invention
The invention aims to provide a cleaning composition for engine fuel system deposits, which has good cleaning capability for engine fuel system deposits and good low-temperature stability.
According to one aspect of the present invention, there is provided a fuel system deposit cleaning composition for an engine, comprising, based on 100% by weight of the total weight of the fuel system deposit cleaning composition: (a) 5-35 wt% oleylamine; (b) 2.5-35% by weight of fatty acids; (c) 5-65 wt% saturated fatty amine; and (d) 0 to 87.5 weight percent nonylphenol polyetheramine. The cleaning composition for the deposits of the engine fuel system has good cleaning capability for the deposits of the engine fuel system and good low-temperature stability.
According to certain preferred embodiments of the present invention, the oleylamine content is 6 to 25 wt%.
According to certain preferred embodiments of the present invention, the fatty acid is selected from one or more of the following group: oleic acid and isostearic acid.
According to certain preferred embodiments of the present invention, the fatty acid is present in an amount of 3 to 25% by weight.
According to certain preferred embodiments of the present invention, the saturated fatty amine is selected from one or more of the following group: dodecyl dimethyl tertiary amine and tetradecyl dimethyl tertiary amine.
According to certain preferred embodiments of the present invention, the saturated fatty amine is present in an amount of 5 to 52 wt.%.
According to certain preferred embodiments of the present invention, the nonylphenol polyetheramine is selected from one or more of the following group: comprising C 3 H 6 Nonylphenol polyetheramines of O structure and containing C 4 H 8 Nonyl phenol polyether amine with O structure.
According to certain preferred embodiments of the present invention, the nonylphenol polyetheramine has the formula:
wherein x is an integer of 7-12, and R is CH 3 Or C 2 H 5 。
According to certain preferred embodiments of the present invention, the nonylphenol polyetheramine is present in an amount of from 25 to 85 weight percent.
According to certain preferred embodiments of the present invention, the engine fuel system deposit cleaning composition comprises: (a) 6-25 wt% oleylamine; (b) 3-25 wt.% of fatty acids selected from one or more of the following group: oleic acid and isostearic acid; (c) 5-52 wt% saturated fatty amine selected from one or more of the following group: dodecyl dimethyl tertiary amine and tetradecyl dimethyl tertiary amine; and (d) 25 to 85 weight percent of a nonylphenol polyetheramine selected from one or more of the following group: comprising C 3 H 6 Nonylphenol polyetheramines of O structure and containing C 4 H 8 Nonyl phenol polyether amine with O structure.
According to another aspect of the present invention, there is provided a method of preparing a deposit cleaning composition for an engine fuel system, comprising the steps of: the components of the engine fuel system deposit cleaning composition provided according to the present invention are mixed to obtain the engine fuel system deposit cleaning composition.
In accordance with yet another aspect of the present invention, there is provided a method of cleaning deposits from an engine fuel system, comprising the steps of: the deposit cleaning composition for an engine fuel system provided according to the present invention is contacted with deposits in the engine fuel system to remove the deposits.
According to certain preferred embodiments of the present invention, the deposit cleaning composition is contacted with deposits in an engine intake valve, fuel injector, or combustion chamber to remove the deposits.
According to certain preferred embodiments of the present invention, the engine is an automotive internal combustion engine.
The cleaning composition for the deposits of the engine fuel system has good cleaning capability for the deposits of the fuel system and good low-temperature stability.
Detailed Description
The invention provides a deposit cleaning composition for an engine fuel system, a preparation method and a use method thereof.
It is to be understood that other various embodiments can be devised and modifications can be made by those skilled in the art based on the teachings of this specification without departing from the scope or spirit of the invention. The following detailed description is, therefore, not to be taken in a limiting sense.
Unless otherwise indicated, all numbers expressing feature sizes, quantities, and physical characteristics used in the specification and claims are to be understood as being modified in all instances by the term "about". Accordingly, unless indicated to the contrary, the numerical parameters set forth in the foregoing specification and attached claims are approximations that can be suitably varied by those skilled in the art in seeking to obtain the desired properties utilizing the teachings disclosed herein. The use of numerical ranges by endpoints includes all numbers within that range and any range within that range, for example, 1 to 5 includes 1, 1.1, 1.3, 1.5, 2, 2.75, 3, 3.80, 4, and 5, and the like.
Cleaning composition for engine fuel system deposits
The invention provides a cleaning composition for deposits in a fuel system of an engine, which comprises the following components in percentage by weight based on 100 percent by weight of the total weight of the cleaning composition for the fuel system of the engine: (a) 5-35 wt% oleylamine; (b) 2.5-35% by weight of fatty acids; (c) 5-65 wt% saturated fatty amine; and (d) 0 to 87.5 weight percent nonylphenol polyetheramine.
In the invention, the amine group contained in the oleylamine (oleylamine) has polarity and surface activity, so that the deposit cleaning composition for the engine fuel system provided by the invention can be promoted to more effectively disperse the deposit.
According to one embodiment of the invention, the oleylamine has the formula C 18 H 37 N。
According to one embodiment of the invention, the oleylamine is present in an amount of from 5 to 35 wt%, preferably from 6 to 25 wt%, based on 100 wt% of the total weight of the engine fuel system deposit cleaning composition.
According to one embodiment of the invention, the oleylamine may be selected from ARMEEN available from Akzo Nobel or FENTAMINE AO V available from Sorvey China, inc.
In the present invention, the fatty acid (fatty acid) may be oleic acid or isostearic acid. The two fatty acids can be neutralized with oleylamine to obtain soap salt, and the neutralized soap salt has surface activity similar to that of oleylamine and better solubility, such as dissolving in saturated fatty amine, alcohol ether or naphthenic solvent oil.
According to one embodiment of the invention, the fatty acid may be oleic acid, formula C 18 H 34 O 2 (ii) a According to one embodiment of the invention, the fatty acid may be isostearic acid of formula C 18 H 36 O 2 。
According to one embodiment of the invention, the fatty acid is present in an amount of 2.5 to 35 wt.%, more preferably 3.0 to 25.0 wt.%, based on 100 wt.% of the total weight of the engine fuel system deposit cleaning composition.
According to one embodiment of the present invention, the oleic acid may be selected from Priolene 6907 available from Daiichi China Co., ltd, and the isostearic acid may be selected from Prisorine 3501 available from Daiichi China Co., ltd
In the present invention, the saturated fatty amine (saturated fatty amine) can dissolve soap salt obtained by neutralizing oleylamine and fatty acid, and prevent soap salt from losing its effect due to precipitation.
According to one embodiment of the invention, the saturated fatty amine is selected from one or more of the following group: dodecyl dimethyl tertiary amine and tetradecyl dimethyl tertiary amine.
According to one embodiment of the invention, the saturated fatty amine is present in an amount of 5 to 65 wt.%, preferably 5 to 52 wt.%, based on 100 wt.% of the total weight of the engine fuel system deposit cleaning composition.
According to one embodiment of the present invention, the saturated fatty amine may be DiM-12 (dodecyl dimethyl tertiary amine) or DiM-14 (tetradecyl dimethyl tertiary amine) available from reagent group, inc., of China.
In the present invention, the nonylphenol polyetheramine can aid in cleaning and dispersing engine fuel system deposits.
According to one embodiment of the invention, the nonylphenol polyetheramine may be selected from one or more of the following group: comprising C 3 H 6 Nonylphenol polyetheramines of the O structure and containing C 4 H 8 Nonyl phenol polyether amine with O structure.
According to one embodiment of the invention, the nonylphenol polyetheramine has the formula:
wherein x is an integer of 7-12, and R is CH 3 Or C 2 H 5 。
According to one embodiment of the invention, the nonylphenol polyetheramine is present in an amount of from 0 to 87.5% by weight, preferably from 25 to 85% by weight, based on 100% by weight of the total weight of the engine fuel system deposit cleaning composition.
According to one embodiment of the invention, the nonylphenol polyetheramine may be selected from PEA-B (containing C) available from Hensman chemical trade (Shanghai) Ltd 4 H 8 Nonylphenol polyetheramine of O structure) and FL-1000 (containing C) 3 H 6 O structureNonylphenol polyetheramine).
Method for preparing deposit cleaning composition for engine fuel system
The invention provides a method for preparing a deposit cleaning composition for an engine fuel system, which comprises the following steps: the components of the deposit cleaning composition for the fuel system of the engine provided by the invention are mixed to obtain the deposit cleaning composition for the fuel system of the engine.
The components of the cleaning composition for the deposit of the engine fuel system are detailed in the specification "Fuel system of edge-sending machine System deposit cleaning composition"part(s)".
Method for cleaning deposits in engine fuel system
The invention provides a method for cleaning deposits in a fuel system of an engine, which comprises the following steps: the deposit cleaning composition for an engine fuel system provided by the present invention is contacted with deposits in the engine fuel system to remove the deposits.
The components of the cleaning composition for the deposit of the engine fuel system are detailed in the specification "Engine fuel system System deposit cleaning composition"part(s)".
According to certain preferred embodiments of the present invention, the engine is an automotive engine, preferably an automotive internal combustion engine.
According to certain preferred embodiments of the present invention, the method may comprise the steps of: contacting the engine fuel system deposit cleaning composition with deposits in an engine intake valve, fuel injector, or combustion chamber to remove the deposits.
According to certain preferred embodiments of the present invention, the method may comprise the steps of: under the condition of idle speed or rotating speed of 2000-3000 of the automobile, using a hanging bottle or a suitable pressurizing tool to make the deposit cleaning composition of the engine fuel system provided by the invention flow through an automobile air inlet valve through a vacuum pipe at a certain flow rate for 10-40 minutes, thereby realizing the cleaning of the air inlet valve;
or, in the idle state of the automobile, the sediment cleaning composition of the engine fuel system provided by the invention flows through the oil nozzle of the automobile at a certain flow rate for 10-40 minutes by using a hanging bottle or a suitable pressurizing tool, so as to clean the oil nozzle;
alternatively, cleaning of the combustion chamber is accomplished by flowing the engine fuel system deposit cleaning composition provided by the present invention through the fuel injector at a flow rate for 10-40 minutes while the vehicle is idling using a dropper bottle or suitable pressurizing means.
According to certain preferred embodiments of the present invention, the method may comprise the steps of: the cleaning composition for the sediments of the engine fuel system is added into a vehicle fuel tank, a vehicle is started, and the cleaning composition flows through the vehicle fuel system (comprising an air inlet valve, an oil nozzle and a combustion chamber) along with the consumption of gasoline during the running of the vehicle, so that the cleaning of the vehicle fuel system (comprising the air inlet valve, the oil nozzle and the combustion chamber) is realized.
Examples
The present invention is described in more detail below by way of examples, which are merely illustrative and should not be construed as limiting the scope of the present invention.
TABLE 1 (raw material table)
Test method
The engine fuel system deposit cleaning compositions provided in the examples and comparative examples of the present invention were tested for their ability to clean engine fuel system deposits using an "engine fuel system deposit cleaning simulation test".
The stability of the engine fuel system deposit cleaning compositions provided in the examples and comparative examples of the present invention under low temperature (0 ℃) conditions was tested using the "low temperature stability test".
Deposit cleaning simulation test for engine fuel system
The chinese national standard GB37322-2019 describes a method of generating simulated deposits for engine intake valves. The test refers to Chinese national standard GB37322-2019, and the temperature is properly changed, so that the sediment condition of a fuel system (comprising an oil nozzle, an air inlet valve and a combustion chamber) of an engine fuel system can be better simulated. This test will test the ability of the engine fuel system deposit cleaning compositions provided by the present invention to clean engine fuel system deposits under high and low concentration conditions, respectively.
Test instruments, materials and reagents:
testing a plate: the aluminum material is 80mm long and 60mm wide, and is purchased from Van. Multidot. Petrochemical instrument, inc. of Lanzhou;
oven: a general drying oven, available from south Beijing Asahon mechanical Equipment Limited;
a dryer: conventional dryers, available from national drug group, ltd.
L-2 air intake system deposit simulation testing machine: purchased from vycor petrochemical instruments ltd, lanzhou;
volumetric flask: purchased from national drug group ltd;
precipitation accelerator: the component is cyclopentadiene, which is purchased from Vavico petrochemical instrument company Limited of Lanzhou;
test bottles: the material is glass, the size is 300ml, and the glass is purchased from national medicine group limited company.
1) Preparation of test panels
1.1 soaking the test plate in alcohol for 60 minutes to ensure the surface to be clean;
1.2 putting the test plate into an oven at 100 ℃ for 15 minutes;
1.3 taking the test panel out of the oven and putting the test panel into a dryer;
1.4 after the temperature of the test plate is cooled to room temperature, recording the temperature (recorded as primary temperature data) and recording the accurate weight (recorded as primary weight data) of the test plate;
1.5 if the difference of the temperature data measured by two continuous operations is less than 0.2 ℃, and the difference of the weight data is less than 0.2mg, recording the average value of the weight data of the two operations;
1.6 put the panel into the desiccator.
2) Preparation of test instruments
2.1 adding 20ml of alcohol into a test bottle of the L-2 air intake system sediment simulation test machine to clean the test bottle, and then putting a solvent collection box;
2.2 opening an air stop valve and a fuel stop valve on a machine panel of the testing machine, and opening a fuel flow meter regulator;
2.3 spraying the alcohol in the test bottle into a solvent collection box through a simulation injector (the step is used for cleaning a simulation air inlet system);
2.4 closing the air stop valve and the fuel stop valve;
2.5 repeat steps 2.1 through 2.4 once with 20ml 92. Sup. Coujin gasoline.
3) Preparation of test liquids
3.1 putting 300ml of No. 92 gasoline into a No. 1 volumetric flask;
3.2 place 300ml of test fluid in a No. 2 volumetric flask, wherein the test fluid is a mixture of No. 92 gasoline and test sample. The content of the test sample in the test solution is added according to the experimental setting: when simulating an application scenario in which a suitable pressurizing tool is used to flow an engine fuel system deposit cleaning composition through and clean an automotive fuel system, a high-strength test fluid is used (in which the cleaning composition is mixed with gasoline at a 10% by volume ratio); when simulating an application scenario in which the engine fuel system deposit cleaning composition is added to an automobile fuel tank, the automobile is started, the engine fuel system deposit cleaning composition is flowed through as gasoline is consumed, and the fuel system of the automobile is cleaned, a low-concentration test fluid is used (in which the cleaning composition is mixed with gasoline at a volume ratio of 0.1%).
4) Fuel system deposit simulation test
4.1 putting the gasoline in the No. 1 volumetric flask into a test bottle, and adding 800 mul of precipitation accelerator;
4.2 opening the test cover and putting the test board into the tester;
4.3, turning on a power supply, starting heating, and keeping the temperature at about 185 ℃;
4.4 opening an air stop valve, adjusting the air pressure to 80kPa +/-0.5 kPa, and keeping the flow rate stable (4 ml/min +/-1 ml/min);
4.5 opening a fuel stop valve, adjusting the fuel pressure to 7.5kPa +/-0.5 kPa, and keeping the flow stable (4 ml/min +/-1 ml/min);
4.6 injecting fuel oil for 75 minutes, and continuing to bake at high temperature for 10 minutes after the oil injection is finished;
4.7 take out the test plate and dip it into a beaker with heptane for 6 minutes;
4.8 taking out the test plate, and immersing the test plate in a beaker filled with petroleum ether for 10 minutes;
4.9 placing the test plate in an oven at 100 ℃ for 15 minutes;
4.10 taking the test panel out of the oven and drying the test panel by using a dryer;
after cooling 4.1l of the test plate to room temperature, the temperature was recorded. If the difference between the temperature data of steps 1.4 and 4.11 is less than 0.2 deg.C, the temperature data of step 4.11 is confirmed as the test temperature and recorded, and the exact weight of the test panel is recorded. If the difference of the weight data measured by two continuous operations is less than 0.2mg, recording the average value of the weight data of the two operations;
4.12 the calculation formula of the simulated deposit weight of the fuel system is as follows:
M＝M 1 -M 0 ，
wherein the content of the first and second substances,
the M-fuel system simulates the weight of deposits in mg,
M 1 -the weight of the panel after gasoline injection in mg;
M o weight of panel before gasoline injection in mg.
5) Fuel system deposit cleaning test
5.1 putting the test liquid in the No. 2 gasoline volumetric flask into a test bottle;
5.2, opening the test cover, and putting the test plate treated in the step 4.11 into the testing machine;
5.3, turning on a power supply, starting heating, and keeping the temperature at about 185 ℃;
5.4 opening an air stop valve, adjusting the air pressure to 80kPa +/-0.5 kPa, and keeping the flow rate stable (4 mL/min +/-1 mL/min);
5.5 opening a fuel stop valve, adjusting the fuel pressure to 7.5kPa +/-0.5 kPa, and keeping the flow stable (4 ml/min +/-1 ml/min);
5.6 spraying the test solution (when the test solution is a high-concentration test solution, the spraying (cleaning) time is 15 minutes, and when the test solution is a low-concentration test solution, the spraying (cleaning) time is 75 minutes);
5.7 taking out the test plate, immersing it in a beaker containing heptane for 6 minutes;
5.8 taking out the test plate, and immersing the test plate in a beaker filled with petroleum ether for 10 minutes;
5.9 placing the test plate in an oven at 100 ℃ for 15 minutes;
5.10 taking the test panel out of the oven and drying the test panel by using a dryer;
5.11 after the test panel had cooled to room temperature, its temperature was recorded. If the difference between the temperature data of steps 1.4 and 5.11 is less than 0.2 deg.C, the temperature data of step 5.11 is confirmed as the test temperature and recorded, and the exact weight of the test panel is recorded. If the difference of the weight data measured by two continuous operations is less than 0.2mg, recording the average value of the weight data of the two operations;
5.12 Fuel System deposit clearance calculation formula:
δ(％)＝[(m-m 2 )/m]×100％
wherein the content of the first and second substances,
delta-fuel system deposit clearance, in units,
m-weight of fuel system deposits in mg;
m 2 weight of test panel after washing in mg.
5.13 cleaning performance evaluation.
For high concentration test solutions:
when delta is less than 40%, the cleaning capability of the test liquid to the deposits of the fuel system is unqualified;
when δ is 40% or more and less than 60%, the cleaning ability of the test liquid for the deposits of the fuel system is "poor";
the cleaning ability of the test liquid for the deposits of the fuel system is "normal" when δ is greater than or equal to 60% and less than 80%;
when δ is greater than or equal to 80% and less than 90%, the cleaning ability of the test liquid for the deposits of the fuel system is "good";
when δ is 90% or more, the cleaning ability of the test liquid against the deposits of the fuel system is "excellent".
For low concentration test solutions:
when delta is less than 20%, the cleaning capability of the test liquid to the deposits of the fuel system is unqualified;
when δ is greater than or equal to 20% and less than 40%, the cleaning ability of the test liquid for the deposits of the fuel system is "poor";
when δ is greater than or equal to 40% and less than 60%, the cleaning ability of the test liquid against the deposits of the fuel system is "normal";
when δ is greater than or equal to 60% and less than 80%, the cleaning ability of the test liquid against the deposits of the fuel system is "good";
when δ is 80% or more, the cleaning ability of the test liquid against the deposits of the fuel system is "excellent".
Low temperature stability test
Placing the cleaning composition in a transparent plastic bottle, keeping at 0 deg.C for 24 hr, and taking out to observe the state of the cleaning composition (clear liquid, turbidity, precipitation or coagulation);
when the test result is clear liquid, the cleaning composition has good low-temperature stability;
when the test results are cloudiness, precipitation or coagulation, the cleaning composition has poor low temperature stability.
Examples
Examples E1 to E12
The components of the deposit cleaning composition for the engine fuel system provided in the example of the present invention were mixed in a glass beaker at normal temperature (25 ℃. + -. 5 ℃) and normal pressure (1 atm) in the composition and weight ratio (wt%) shown in Table 2 to obtain the deposit cleaning compositions E1 to E12 for the engine fuel system. The results of the "engine fuel system deposit cleaning simulation test" and the "low temperature stability test" were performed on E1-E12, respectively, and are shown in Table 2.
Comparative examples C1 to C7
The components of the deposit cleaning composition for an engine fuel system provided in the comparative example of the present invention were mixed in a glass beaker at normal temperature (25 ℃. + -. 5 ℃) and normal pressure (1 atm) in the composition and weight ratio (wt%) shown in Table 3 to obtain the deposit cleaning compositions for an engine fuel system C1 to C7. The engine fuel system deposit cleaning simulation test and the low temperature stability test were carried out on the engine fuel system deposit cleaning compositions C1 to C7, respectively, and the test results are shown in Table 3.
TABLE 3
From E1-E12, the deposit cleaning composition for the engine fuel system has good deposit cleaning capability of the fuel system and good low-temperature stability. And, when the invention provides a cleaning composition for engine fuel system deposit, based on the total weight of the cleaning composition for engine fuel system deposit, the cleaning composition comprises the following components by weight percent (100): (a) 6-25 wt% oleylamine; (b) 3-25% by weight of fatty acids; (c) 5-52% by weight of saturated fatty amine; and (d) 25-85 wt% nonylphenol polyetheramine, the engine fuel system deposit cleaning composition has excellent deposit cleaning ability and good low temperature stability.
From C1 can be seenThe deposit cleaning composition for the fuel system of an engine comprises only C 3 H 6 Nonyl phenol polyether amine and oleylamine with O structure, so the low-temperature stability is poor.
As can be seen from C2, the engine fuel system deposit cleaning composition contains only fatty acids and therefore is not sufficiently capable of cleaning engine fuel system deposits and is not capable of maintaining a clear liquid state at low temperatures.
As can be seen from C3, the engine fuel system deposit cleaning composition contains only dodecyl dimethyl tertiary amine and therefore is not sufficient in its ability to clean engine fuel system deposits.
As can be seen from C4, the engine fuel system deposit cleaning composition comprises only C 3 H 6 Nonyl phenol polyether amine of O structure, so its ability to clean engine fuel system deposits is insufficient.
As can be seen from C5, the engine fuel system deposit cleaning composition contains oleylamine only and therefore does not maintain a clear liquid state at low temperatures.
As can be seen from C6 and C7, the deposit cleaning composition for the engine's fuel system has insufficient levels of oleylamine and fatty acid and therefore has insufficient ability to clean deposits from the engine's fuel system.
In conclusion, the deposit cleaning composition for the engine fuel system has good capability of cleaning deposits of the engine fuel system and good low-temperature stability.
Although the foregoing detailed description contains many specific details for the purpose of illustration, it will be appreciated by those of ordinary skill in the art that numerous variations, alterations, substitutions and alterations to these details are within the scope of the invention as claimed. Therefore, the disclosure described in the detailed description does not impose any limitation on the invention as claimed. The proper scope of the invention should be determined by the following claims and their proper legal equivalents. All cited references are incorporated herein by reference in their entirety.
Claims (7)
1. An engine fuel system deposit cleaning composition comprising, based on 100 wt.% of the total weight of the engine fuel system deposit cleaning composition:
(a) 6-25 wt% oleylamine;
(b) 3-25 wt.% of fatty acids selected from one or more of the following group: oleic acid and isostearic acid;
(c) 6-52 wt% of saturated fatty amine selected from one or more of the following group: dodecyl dimethyl tertiary amine and tetradecyl dimethyl tertiary amine; and
(d) 25-85% by weight of nonylphenol polyetheramine.
2. The engine fuel system deposit cleaning composition of claim 1, wherein said nonylphenol polyetheramine is selected from one or more of the following group: comprising C 3 H 6 Nonylphenol polyetheramines of O structure and containing C 4 H 8 Nonyl phenol polyether amine with O structure.
3. The engine fuel system deposit cleaning composition according to claim 1 or 2, wherein the nonylphenol polyetheramine is of the formula:
wherein x is an integer of 7-12, and R is CH 3 Or C 2 H 5 。
4. A method of making a deposit cleaning composition for an engine fuel system comprising the steps of: mixing the components of the engine fuel system deposit cleaning composition of any one of claims 1 to 3 to obtain the engine fuel system deposit cleaning composition.
5. A method of cleaning deposits from an engine fuel system comprising the steps of: contacting a deposit cleaning composition for an engine fuel system as claimed in any one of claims 1 to 3 with deposits in an engine fuel system to remove said deposits.
6. The method of claim 5, wherein the method comprises the steps of: contacting the engine fuel system deposit cleaning composition with deposits in an engine intake valve, fuel injector, or combustion chamber to remove the deposits.
7. The method of claim 5 or 6, wherein the engine is an automotive internal combustion engine.
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| KR20080027125A (en) * | 2006-09-21 | 2008-03-26 | 에프톤 케미칼 코포레이션 | Alkanolamides and their use as fuel additives |
| JP5737730B1 (en) * | 2014-11-07 | 2015-06-17 | 有限会社タービュランス・リミテッド | Fuel additive and fuel composition for internal combustion engine |
| WO2017075197A1 (en) * | 2015-10-29 | 2017-05-04 | 3M Innovative Properties Company | Fuel additive, and preparation method and usage method thereof |
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| CN102643688B (en) * | 2012-04-09 | 2015-06-03 | 北京博雅思明环保科技有限公司 | Nanometre fuel additive and preparation method for same |
| CN104762142B (en) * | 2014-01-06 | 2018-10-09 | 3M创新有限公司 | The method of carbon on engine cleaning combination and cleaning engine |
| CN108865300A (en) * | 2018-06-05 | 2018-11-23 | 深圳市龙威科技发展有限公司 | A kind of fuel system multiple-effect non-dismounting cleaning agent |
| CN111139142B (en) * | 2019-12-31 | 2021-07-06 | 3M中国有限公司 | Cleaning composition, fuel additive, automobile air intake system cleaning agent and using method thereof |
| CN112251297B (en) * | 2020-11-09 | 2021-09-21 | 3M中国有限公司 | Engine carbon deposit cleaning composition, method for preparing engine carbon deposit cleaning composition and method for cleaning engine carbon deposit |
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| KR20080027125A (en) * | 2006-09-21 | 2008-03-26 | 에프톤 케미칼 코포레이션 | Alkanolamides and their use as fuel additives |
| JP5737730B1 (en) * | 2014-11-07 | 2015-06-17 | 有限会社タービュランス・リミテッド | Fuel additive and fuel composition for internal combustion engine |
| WO2017075197A1 (en) * | 2015-10-29 | 2017-05-04 | 3M Innovative Properties Company | Fuel additive, and preparation method and usage method thereof |
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