CN112251297B - Engine carbon deposit cleaning composition, method for preparing engine carbon deposit cleaning composition and method for cleaning engine carbon deposit - Google Patents
Engine carbon deposit cleaning composition, method for preparing engine carbon deposit cleaning composition and method for cleaning engine carbon deposit Download PDFInfo
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- 238000004140 cleaning Methods 0.000 title claims abstract description 112
- 239000000203 mixture Substances 0.000 title claims abstract description 90
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 72
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 72
- 238000000034 method Methods 0.000 title claims description 18
- QGLWBTPVKHMVHM-KTKRTIGZSA-N (z)-octadec-9-en-1-amine Chemical compound CCCCCCCC\C=C/CCCCCCCCN QGLWBTPVKHMVHM-KTKRTIGZSA-N 0.000 claims abstract description 18
- 239000004094 surface-active agent Substances 0.000 claims abstract description 16
- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical compound CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 claims abstract description 15
- HNJBEVLQSNELDL-UHFFFAOYSA-N pyrrolidin-2-one Chemical compound O=C1CCCN1 HNJBEVLQSNELDL-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000004071 soot Substances 0.000 claims description 50
- 238000002485 combustion reaction Methods 0.000 claims description 33
- 229920001296 polysiloxane Polymers 0.000 claims description 8
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 5
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 5
- 125000002947 alkylene group Chemical group 0.000 claims description 3
- 125000004432 carbon atom Chemical group C* 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 2
- 239000002184 metal Substances 0.000 abstract description 15
- 229910052751 metal Inorganic materials 0.000 abstract description 15
- 238000005260 corrosion Methods 0.000 abstract description 14
- 230000007797 corrosion Effects 0.000 abstract description 14
- 238000012360 testing method Methods 0.000 description 32
- 229910052573 porcelain Inorganic materials 0.000 description 15
- 239000000919 ceramic Substances 0.000 description 9
- 239000000446 fuel Substances 0.000 description 8
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- -1 alkoxy alcohol Chemical compound 0.000 description 5
- 230000008021 deposition Effects 0.000 description 5
- 150000002191 fatty alcohols Chemical class 0.000 description 5
- 239000003921 oil Substances 0.000 description 5
- 238000004088 simulation Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 239000003599 detergent Substances 0.000 description 4
- 239000003814 drug Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000005303 weighing Methods 0.000 description 4
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 3
- 239000006229 carbon black Substances 0.000 description 3
- 239000012459 cleaning agent Substances 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 2
- 230000004075 alteration Effects 0.000 description 2
- LHIJANUOQQMGNT-UHFFFAOYSA-N aminoethylethanolamine Chemical compound NCCNCCO LHIJANUOQQMGNT-UHFFFAOYSA-N 0.000 description 2
- 239000002199 base oil Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 235000014113 dietary fatty acids Nutrition 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 239000000194 fatty acid Substances 0.000 description 2
- 229930195729 fatty acid Natural products 0.000 description 2
- 150000004665 fatty acids Chemical class 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 239000003209 petroleum derivative Substances 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 238000002791 soaking Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 1
- ZFPGARUNNKGOBB-UHFFFAOYSA-N 1-Ethyl-2-pyrrolidinone Chemical compound CCN1CCCC1=O ZFPGARUNNKGOBB-UHFFFAOYSA-N 0.000 description 1
- OAYXUHPQHDHDDZ-UHFFFAOYSA-N 2-(2-butoxyethoxy)ethanol Chemical compound CCCCOCCOCCO OAYXUHPQHDHDDZ-UHFFFAOYSA-N 0.000 description 1
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 1
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- WPPOGHDFAVQKLN-UHFFFAOYSA-N N-Octyl-2-pyrrolidone Chemical compound CCCCCCCCN1CCCC1=O WPPOGHDFAVQKLN-UHFFFAOYSA-N 0.000 description 1
- 239000005642 Oleic acid Substances 0.000 description 1
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 150000001925 cycloalkenes Chemical class 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000007922 dissolution test Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003995 emulsifying agent 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
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 239000008434 yi-zhi Substances 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
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/82—Compounds containing silicon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/08—Cleaning involving contact with liquid the liquid having chemical or dissolving effect
-
- 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
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/20—Organic compounds containing oxygen
- C11D3/2068—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
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/26—Organic compounds containing nitrogen
- C11D3/28—Heterocyclic compounds containing nitrogen in the ring
-
- 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
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/26—Organic compounds containing nitrogen
- C11D3/30—Amines; Substituted amines ; 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
- 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
- C11D2111/16—Metals
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- General Chemical & Material Sciences (AREA)
- Detergent Compositions (AREA)
Abstract
The invention provides an engine carbon deposit cleaning composition, which comprises the following components in percentage by weight based on 100 percent by weight of the total weight of the engine carbon deposit cleaning composition: (a)3-10 wt% oleylamine; (b)0-60 wt% of fatty alcohol-polyoxyethylene ether-modified organosilicon surfactant; (c) 30-83% by weight of pyrrolidone; (d)5-67 wt% ethylene glycol butyl ether; and (e)0-20 wt% of water. The engine carbon deposit cleaning composition has good carbon deposit cleaning capability and good metal corrosion resistance.
Description
Technical Field
The invention relates to an engine carbon deposit cleaning composition, a method for preparing the engine carbon deposit cleaning composition and a method for cleaning the engine carbon deposit.
Background
Automotive engines are prone to carbon deposits (also known as "soot") during operation. These carbon deposits are typically formed from substances in the fuel, fuel decomposition products, fuel combustion products, contaminants in the air that are not removed by filtration, and lubricating oil residues under high temperature conditions and are retained in the fuel intake system, intake valve, or combustion chamber of the engine. Carbon deposits in automotive engines may cause uneven or insufficient fuel supply in the engine cylinders, leading to problems such as poor engine performance, increased emissions, and poor fuel economy.
Some cleaning agents for removing carbon deposits from engines are known in the art. For example, US2952637 discloses a carburettor and engine cleaning composition comprising an alkoxy alcohol, a fatty alcohol, a petroleum distillate, a liquid fatty acid, a volatile nitrogen base and water. US3876704 discloses detergents for hydrocarbon fuels whose main component is N-long-chain alkyl, N-hydroxyalkylalkylenepolyamines. US4055402 discloses a gasoline detergent whose main component is polyisobutenyl aminoethylethanolamine at a level of 50 to 200 ppm. US5407453a1 discloses a composition comprising alkoxylated alcohols, aliphatic alcohols, liquid petroleum distillates, liquid fatty acids, volatile nitrogen bases, polyisobutenyl aminoethyl ethanolamine and water for the removal of carbon deposits in air and fuel intake systems, valves and combustion chambers in engines. CN1153813A discloses a cleaning agent consisting of ethanolamine, butanol, ether, ammonia water, oleic acid, emulsifier, engine oil and kerosene, which is used for cleaning carbon deposits in internal combustion engines.
However, the inclusion of aromatic hydrocarbon solvents, glycol ethers, or strong bases in these cleaners or detergents can be potentially harmful to the environment. Furthermore, the cleaning efficiency of the existing cleaning agents or detergents is not satisfactory.
Disclosure of Invention
The invention aims to provide the engine carbon deposit cleaning composition with good carbon deposit cleaning capability and good metal corrosion resistance.
According to one aspect of the present invention there is provided an engine soot cleaning composition comprising, based on 100 wt% total weight of the engine soot cleaning composition: (a)3-10 wt% oleylamine; (b)0-60 wt% of fatty alcohol-polyoxyethylene ether-modified organosilicon surfactant; (c) 30-83% by weight of pyrrolidone; (d)5-67 wt% ethylene glycol butyl ether; and (e)0-20 wt% of water.
According to certain preferred embodiments of the present invention, the oleylamine content is 5 to 10% by weight.
According to certain preferred embodiments of the present invention, the fatty alcohol-polyoxyethylene ether-modified silicone surfactant has a structure represented by the following general formula (I):
wherein A is an alkylene group having 1 to 3 carbon atoms; k is an integer of 6 to 12; m is an integer of 1 to 10; and n is an integer of 1 to 3.
According to certain preferred embodiments of the present invention, in formula (I), k is 6, 8 or 12.
According to certain preferred embodiments of the present invention, the fatty alcohol-polyoxyethylene ether-modified silicone surfactant is present in an amount of 5 to 10 wt.%.
According to certain preferred embodiments of the present invention, the pyrrolidone is present in an amount of 45 to 55% by weight.
According to certain preferred embodiments of the present invention, the butyl cellosolve is present in an amount of 30 to 40% by weight.
According to certain preferred embodiments of the present invention, there is provided an engine soot cleaning composition comprising, based on 100 wt.% of the total weight of the engine soot cleaning composition: (a)5-10 wt% oleylamine; (b)5-10 wt% of fatty alcohol-polyoxyethylene ether-modified organosilicon surfactant; (c) 45-55% by weight of pyrrolidone; and (d)30-40 wt% butyl cellosolve.
According to another aspect of the present invention, there is provided a method of preparing an engine soot cleaning composition comprising the steps of: the components of the engine carbon deposit cleaning composition provided by the invention are mixed to obtain the engine carbon deposit cleaning composition.
According to another aspect of the invention, there is provided a method of cleaning soot from an engine, the method comprising the steps of: the carbon deposit cleaning composition for the engine is contacted with the carbon deposit in the engine to remove the carbon deposit in the engine.
According to certain preferred embodiments of the present invention, the engine is an automotive internal combustion engine.
The carbon deposit cleaning composition for the engine provided by the invention has good carbon deposit cleaning capability and good metal corrosion resistance.
Detailed Description
The engine soot cleaning composition and the method of using the same according to the present invention will be described in detail below.
It is to be understood that other various embodiments can be devised and modified by those skilled in the art in light of the teachings herein 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.
Engine carbon deposit cleaning composition
The invention provides an engine carbon deposit cleaning composition, which comprises the following components in percentage by weight based on 100 percent by weight of the total weight of the engine carbon deposit cleaning composition: (a)3-10 wt% oleylamine; (b)0-60 wt% of fatty alcohol-polyoxyethylene ether-modified organosilicon surfactant; (c) 30-83% by weight of pyrrolidone; (d)5-67 wt% ethylene glycol butyl ether; and (e)0-20 wt% of water.
In the invention, the molecular formula of the oleylamine (oleylamine) is C18H37And N is added. The oleylamine has good penetrating action and polarity, and can enable the engine carbon deposit cleaning composition provided by the invention to quickly penetrate to the surface of carbon deposit so as to decompose the carbon deposit.
According to certain embodiments of the invention, the oleylamine content is 3 to 10 wt%, preferably 5 to 10 wt%, based on 100 wt% of the total weight of the engine soot cleaning composition.
According to certain embodiments of the present invention, the oleylamine may be selected from ARMEEN available from Akzo Nobel.
In the present invention, the fatty alcohol-polyoxyethylene ether-modified silicone surfactant has a structure represented by the following general formula (I):
wherein A is an alkylene group having 1 to 3 carbon atoms; k is an integer of 6 to 12; m is an integer of 1 to 10; and n is an integer of 1 to 3. The organic silicon surfactant modified by the fatty alcohol-polyoxyethylene ether can enable oleylamine to penetrate to the surface of carbon deposition more quickly so as to decompose the carbon deposition.
According to certain embodiments of the present invention, in formula (I), preferably, k ═ 6.
According to certain embodiments of the present invention, in formula (I), preferably, k ═ 8.
According to certain embodiments of the present invention, in formula (I), preferably, k ═ 12.
According to certain embodiments of the present invention, the fatty alcohol polyoxyethylene ether-modified silicone surfactant is present in an amount of from 0 to 60 wt.%, preferably from 5 to 10 wt.%, based on 100 wt.% of the total weight of the engine soot cleaning composition.
According to certain embodiments of the present invention, the fatty alcohol polyoxyethylene ether-modified silicone surfactant may be selected from 3239(k 6), 3259(k 8) and 3299(k 12) available from Chongyao scientific development, Inc., Hangzhou.
In the present invention, the pyrrolidone may dissolve carbon deposit.
According to certain embodiments of the invention, the pyrrolidone includes one or more of the following group: N-Methyl pyrrolidone, N-Octyl pyrrolidone and N-ethyl pyrrolidone.
According to certain embodiments of the present invention, the pyrrolidone is present in an amount of 30 to 83 wt%, preferably 45 to 55 wt%, based on 100 wt% of the total weight of the engine soot cleaning composition.
According to certain embodiments of the present invention, the pyrrolidone may be selected from NMP, NEP, NOP available from Dow corporation (DOW).
In the invention, the ethylene glycol butyl ether can increase the solubility of oleylamine and has a good cleaning effect on carbon deposition.
According to certain embodiments of the invention, the ethylene glycol butyl ether comprises one or more of the following group: monoethylene glycol butyl ether (C)6H14O2) And diethylene glycol butyl ether (molecular formula: c8H18O3)。
According to certain embodiments of the present invention, the ethylene glycol monobutyl ether is present in an amount of from 5 to 67 wt.%, preferably from 30 to 40 wt.%, based on 100 wt.% of the total weight of the engine soot cleaning composition.
According to certain embodiments of the present invention, the butyl glycol ether may be selected from BCS available from Dow corporation (DOW).
In the present invention, water is an optional ingredient in the engine soot cleaning compositions provided by the present invention. When the engine carbon deposit cleaning composition provided by the invention contains water, the engine carbon deposit cleaning composition has a higher flash point and better safety.
According to certain embodiments of the present invention, the water is present in an amount of 0 to 20 wt.%, based on 100 wt.% of the total weight of the engine soot cleaning composition.
Method for preparing engine carbon deposit cleaning composition
The invention provides a method for preparing a carbon deposit cleaning composition for an engine, which comprises the following steps: the components of the engine carbon deposit cleaning composition provided by the invention are mixed to obtain the engine carbon deposit cleaning composition.
The components of the carbon deposit cleaning composition for the engine are described in the specification "Engine carbon deposit cleaning composition"part(s)".
Method for cleaning carbon deposit of engine
The invention provides a method for cleaning carbon deposit of an engine, which comprises the following steps: the carbon deposit cleaning composition for the engine provided by the invention is contacted with the engine to remove the carbon deposit in the engine.
The components of the carbon deposit cleaning composition for the engine are described in the specification "Engine carbon 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: the spark plug of the engine is removed and the formulated cleaning composition is introduced into the combustion chamber of the engine via a conduit. For example, 120-150ml of the engine soot cleaning composition may be introduced separately into each combustion chamber of the engine via a conduit, allowed to stand for a period of time (e.g., about 30 minutes) to allow the engine soot cleaning composition to sufficiently impregnate the carbon deposits in the combustion chamber to achieve good cleaning, then the excess engine soot cleaning composition and/or reacted engine soot cleaning composition may be drawn out of the combustion chamber via the conduit, and finally the engine combustion chamber may be blow dried with an air gun.
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 soot cleaning compositions provided in the examples and comparative examples of the present invention were tested for their ability to clean engine combustion chamber soot using a "combustion chamber deposit cleaning simulation test".
In addition, the present invention tested the ability of the engine soot cleaning compositions provided in the examples and comparative examples of the present invention to corrode metals using the "metal corrosion test".
The present inventors evaluated whether the appearance of the engine soot cleaning compositions provided in the examples of the present invention and comparative examples was transparent by visual observation.
Combustion chamber deposit cleaning simulation test
Test instruments, materials and reagents:
a porcelain crucible: the glaze surface is wide and mouth-shaped, the diameter of the outer edge of the mouth is 46-49mm, the capacity is 30ml, and the glaze surface is purchased from Chinese national medicine group Limited company;
analytical balance: maximum load 200g, division 0.1mg, available from Mettler-Tollido instruments (Shanghai) Co., Ltd;
a high-temperature test chamber: meets the requirements of GB/T11158, and is purchased from Mettler-Tollido instruments (Shanghai) Co., Ltd;
a box type resistance furnace: meets the requirements of JJF1376, purchased from Mettler-Tollido instruments (Shanghai) Co., Ltd;
a dryer, available from the national drug group ltd of china;
glass beaker: 500ml, purchased from the national drug group, ltd, china;
a measuring cylinder: 50ml, which meets the requirement of GB/T12804 and is purchased from Chinese national medicine group, Inc.;
base oil: the solvent refined mineral oil meets the requirement of Q/SY 44 and is purchased from Shanghai Qingyuan chemical science and technology Co., Ltd;
carbon black: import 5000-mesh high pigment carbon black, purchased from Shanghai Qingyuan chemical technology Co., Ltd;
silicon dioxide: 400 mesh precipitated silica, available from Shanghai Qingyuan chemical science and technology Limited;
a char-forming auxiliary agent: mainly an oxide of oligomeric cycloolefin, meets the requirement of GB/T19230.4, and is purchased from Ling liquid Yizhi science and technology Limited;
petroleum ether: conforms to the regulation of GB/T15894, and is purchased from Shanghai Qingyuan chemical technology Co., Ltd;
heavy aromatic hydrocarbons: heavy aromatics are mixed and hydrogenated, the distillation range is 195-210 ℃, and the heavy aromatics are purchased from Shanghai Qingyuan chemical technology Co.
The testing steps are as follows:
1) preparation of engine combustion chamber simulation deposit
Uniformly mixing base oil, carbon black, silicon dioxide and a carbon forming agent in a mass ratio of 3:2:1:8 to obtain an oil mixture;
placing the ceramic crucible into a box-type resistance furnace at 800 +/-5 ℃ for baking for 60min, cooling, weighing, and recording the weight M0；
Adding 1g +/-0.01 g of oil mixture into a porcelain crucible, coating a glass rod, and uniformly coating the oil mixture on the surface of the porcelain crucible (the coating height of the oil mixture is not higher than 3/4 of the height of the crucible, the thickness of the oil mixture at the bottom of the porcelain crucible is prevented from being non-uniform, and the thickness of the bottom and the periphery of the porcelain crucible is as close as possible);
putting the crucible into a high-temperature test box with the constant temperature of 180 +/-5 ℃ and the constant temperature of 30 +/-1 min to obtain a thermal porcelain crucible with sediment;
the hot ceramic crucible with the deposit is transferred into a drier, cooled for 40 minutes, weighed and the weight M of the ceramic crucible at this time is recorded1(precision 0.1 mg); after weighing, the porcelain crucible with the deposit attached was put into a desiccator for later use.
2) Dissolution test of simulated deposit in combustion chamber
Placing the porcelain crucible with the sediment into a high-temperature test box at 180 +/-5 ℃, and keeping the temperature for 10 +/-1 min;
accurately weighing 25ml +/-0.5 ml of test sample (the engine carbon deposition cleaning composition provided by the embodiment of the invention or the cleaning composition provided by the comparative example) by using a measuring cylinder; opening the door of the high-temperature test chamber, and pouring the test sample into the ceramic crucible without taking out and moving the ceramic crucible; closing the high-temperature test box door, and starting timing for 10min +/-0.5 min when the temperature of the high-temperature test box is stabilized to 180 +/-5 ℃;
taking out the ceramic crucible from the high-temperature test box, and pouring out the sample from the ceramic crucible; placing the porcelain crucible into a beaker filled with 300ml of heavy aromatic hydrocarbons plus or minus 5ml, soaking for 3min plus or minus 0.5min, then transferring the porcelain crucible into a 300ml of petroleum ether beaker plus or minus 5ml, soaking for 3min plus or minus 0.5min, and taking out;
putting the ceramic crucible into a high-temperature test box at 120 +/-5 ℃, and drying at constant temperature for 60 +/-1 min;
placing the porcelain crucible into a dryer, cooling to room temperature, weighing, and recording as M2。
And (3) calculating:
1) an initial amount of simulated deposits within a combustion chamber of the engine is calculated,
the calculation formula is as follows: m is M1-M0Wherein, in the step (A),
m-initial amount of simulated deposits in the engine combustion chamber, in g,
M1-the weight of the ceramic crucible in g simulating the deposits of the combustion chamber of the engine;
M0-weight of porcelain crucible in g.
2) Calculating a residual amount of the simulated deposits in the engine combustion chamber,
the calculation formula is as follows: mx＝M2-M0Wherein, in the step (A),
Mxresidual amounts of simulated deposits in the engine combustion chamber, in g,
M2-the total weight of the porcelain crucible and the test sample after pouring the test sample into the porcelain crucible, in g;
M0-weight of porcelain crucible in g.
3) Calculating the cleaning rate of the carbon deposit in the combustion chamber of the engine,
the calculation formula is as follows: eta ═ M (M-M)x) a,/M.times.100%, wherein,
eta-cleaning rate of carbon deposit in combustion chamber of engine, unit is,
m-initial amount of simulated deposits in the engine combustion chamber, in g,
Mxresidual amounts of simulated deposits in g in the engine combustion chamber.
Evaluation criteria:
when eta is less than 25%, the cleaning capability of the test sample on carbon deposit in the combustion chamber of the engine is unqualified;
when η is greater than or equal to 25% and less than 50%, the cleaning ability of the test sample to the carbon deposits in the engine combustion chamber is "poor";
when eta is greater than or equal to 50% and less than 70%, the cleaning capability of the test sample on carbon deposit in a combustion chamber of an engine is 'normal';
when eta is greater than or equal to 70% and less than 85%, the cleaning capability of the test sample on carbon deposition in a combustion chamber of an engine is good;
when greater than 85%, the test sample was "excellent" in cleaning the engine combustion chamber soot.
Corrosion resistance test of metals
The test samples were tested according to the test method of the Chinese national standard GB/T5096-2017.
If the test result is not lower than the first level of the standard, the corrosion of the test sample to the metal is low, and the metal corrosion resistance is good.
Examples
Examples E1 to E13
The components of the engine soot cleaning composition provided in the examples 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 engine soot cleaning compositions E1-E13. The appearance of the engine soot cleaning compositions E1-E13 was observed and the engine soot cleaning compositions E1-E13 were subjected to the "Combustion Chamber deposit cleaning simulation test" and the "Metal Corrosion resistance test", respectively, and the test results are shown in Table 2, respectively.
TABLE 2
Comparative examples C1-C7
The components of the engine soot cleaning composition provided in the comparative example of the present invention were mixed in a suitable container at normal temperature (25 ℃. + -. 5 ℃) and normal pressure (1 atm) in the composition and weight ratio (wt%) shown in Table 3 to obtain engine soot cleaning compositions C1-C7. The appearances of the engine soot cleaning compositions C1-C7 were observed, and the engine soot cleaning compositions C1-C7 were subjected to a "Combustion Chamber deposit cleaning simulation test" and a "Metal Corrosion resistance test", respectively, and the test results are shown in Table 3, respectively.
TABLE 3
From E1-E13, the engine carbon cleaning composition provided by the invention has good carbon cleaning capability, good metal corrosion resistance and transparent appearance.
As can be seen from E2, E8, E10, E11 and E13, the present invention provides an engine soot cleaning composition comprising, based on 100 wt.% of the total weight of the engine soot cleaning composition: (a)5-10 wt% of oleylamine, (b)5-10 wt% of fatty alcohol polyoxyethylene ether modified silicone surfactant, (c)45-55 wt% of pyrrolidone, and (d)30-40 wt% of ethylene glycol butyl ether, the engine carbon deposit cleaning composition has excellent carbon deposit cleaning ability, good metal corrosion resistance and transparent appearance.
From C1-C4, it can be seen that the engine carbon deposit cleaning composition using oleylamine, fatty alcohol polyoxyethylene ether modified organosilicon surfactant, pyrrolidone or ethylene glycol butyl ether alone cannot have both good carbon deposit cleaning ability and good metal corrosion resistance.
It can be seen from C5 that if the oleylamine content is too low (2 wt%), the soot cleaning ability of the engine soot cleaning composition is insufficient.
It can be seen from C6 that if the pyrrolidone content is too high (84 wt%), the metal corrosion resistance of the engine soot cleaning composition is insufficient.
From C7, it can be seen that if the composition does not contain the fatty alcohol-polyoxyethylene ether modified silicone surfactant, the carbon cleaning capability of the engine carbon cleaning composition is insufficient.
In conclusion, the carbon deposit cleaning composition for the engine provided by the invention has a transparent appearance, good carbon deposit cleaning capability and good metal corrosion resistance.
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 (9)
1. An engine soot cleaning composition comprising, based on 100 wt.% of the total weight of the engine soot cleaning composition:
(a)3-10 wt% oleylamine;
(b)5-10 wt% of fatty alcohol-polyoxyethylene ether-modified organosilicon surfactant;
(c) 30-83% by weight of pyrrolidone;
(d)5-42 wt% ethylene glycol butyl ether; and
(e) 0-20% by weight of water.
2. An engine soot cleaning composition as defined in claim 1, wherein said oleylamine is present in an amount of 5 to 10 wt%.
3. An engine soot cleaning composition according to claim 1, wherein said fatty alcohol-polyoxyethylene ether modified silicone surfactant is represented by general formula (I):
wherein A is an alkylene group having 1 to 3 carbon atoms; k is an integer of 6 to 12, m is an integer of 1 to 10, and n is an integer of 1 to 3.
4. An engine soot cleaning composition as defined in claim 1, wherein said pyrrolidone is present in an amount of 45-55 wt%.
5. An engine soot cleaning composition as defined in claim 1 wherein said butyl glycol ether is present in an amount of 30-40 wt%.
6. An engine soot cleaning composition as defined in claim 1, comprising, based on 100 wt.% of the total weight of said engine soot cleaning composition:
(a)5-10 wt% oleylamine;
(b)5-10 wt% of fatty alcohol-polyoxyethylene ether-modified organosilicon surfactant;
(c) 45-55% by weight of pyrrolidone; and
(d)30-40 wt% ethylene glycol butyl ether.
7. A method of preparing an engine soot cleaning composition comprising the steps of: mixing the components of the engine soot cleaning composition as defined in any one of claims 1 to 6 to obtain the engine soot cleaning composition.
8. A method for cleaning carbon deposit of an engine comprises the following steps: contacting the engine soot cleaning composition of any one of claims 1-6 with soot in an engine to remove the soot from the engine.
9. The method of claim 8, wherein the engine is an automotive internal combustion engine.
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