CN107142159A - A kind of environment-friendly type three-element catalytic cleaning agent - Google Patents
A kind of environment-friendly type three-element catalytic cleaning agent Download PDFInfo
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- CN107142159A CN107142159A CN201710530966.XA CN201710530966A CN107142159A CN 107142159 A CN107142159 A CN 107142159A CN 201710530966 A CN201710530966 A CN 201710530966A CN 107142159 A CN107142159 A CN 107142159A
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- 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
- C11D1/83—Mixtures of non-ionic with anionic compounds
- C11D1/831—Mixtures of non-ionic with anionic compounds of sulfonates with ethers of polyoxyalkylenes without phosphates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J38/00—Regeneration or reactivation of catalysts, in general
- B01J38/04—Gas or vapour treating; Treating by using liquids vaporisable upon contacting spent catalyst
- B01J38/42—Gas or vapour treating; Treating by using liquids vaporisable upon contacting spent catalyst using halogen-containing material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J38/00—Regeneration or reactivation of catalysts, in general
- B01J38/48—Liquid treating or treating in liquid phase, e.g. dissolved or suspended
- B01J38/50—Liquid treating or treating in liquid phase, e.g. dissolved or suspended using organic liquids
- B01J38/52—Liquid treating or treating in liquid phase, e.g. dissolved or suspended using organic liquids oxygen-containing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J38/00—Regeneration or reactivation of catalysts, in general
- B01J38/48—Liquid treating or treating in liquid phase, e.g. dissolved or suspended
- B01J38/60—Liquid treating or treating in liquid phase, e.g. dissolved or suspended using acids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J38/00—Regeneration or reactivation of catalysts, in general
- B01J38/48—Liquid treating or treating in liquid phase, e.g. dissolved or suspended
- B01J38/60—Liquid treating or treating in liquid phase, e.g. dissolved or suspended using acids
- B01J38/62—Liquid treating or treating in liquid phase, e.g. dissolved or suspended using acids organic
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J38/00—Regeneration or reactivation of catalysts, in general
- B01J38/48—Liquid treating or treating in liquid phase, e.g. dissolved or suspended
- B01J38/68—Liquid treating or treating in liquid phase, e.g. dissolved or suspended including substantial dissolution or chemical precipitation of a catalyst component in the ultimate reconstitution of the catalyst
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- 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
- C11D3/02—Inorganic compounds ; Elemental compounds
- C11D3/04—Water-soluble compounds
- C11D3/042—Acids
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- 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
- C11D3/2003—Alcohols; Phenols
- C11D3/2006—Monohydric alcohols
- C11D3/2017—Monohydric alcohols branched
-
- 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
- C11D3/2072—Aldehydes-ketones
-
- 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
- C11D3/33—Amino carboxylic acids
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- 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
- C11D3/36—Organic compounds containing phosphorus
- C11D3/361—Phosphonates, phosphinates or phosphonites
-
- 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
- C11D1/02—Anionic compounds
- C11D1/34—Derivatives of acids of phosphorus
- C11D1/345—Phosphates or phosphites
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- 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
- C11D1/667—Neutral esters, e.g. sorbitan esters
-
- 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
- C11D1/721—End blocked ethers
Abstract
The present invention relates to a kind of environment-friendly type three-element catalytic cleaning agent, the cleaning agent at least includes the component of following weight percent content：0.5~0.8% hydrochloric acid, 10~20% EDDS, 6~15% detersive, 5~10% anti-incrustation corrosion inhibitor, 5% cosolvent and deionized water, wherein, the percetage by weight sum of the hydrochloric acid, the EDDS, the detersive, the anti-incrustation corrosion inhibitor, the cosolvent and deionized water is 100%.The three-element catalytic cleaning agent of the present invention on the one hand can be to the completely plugged engine that can not start at normal temperatures by tentatively cleaning except desulfuration, phosphorus complex and carbon distribution deposit enable the engine to start, then start engine idling to carry out secondary cleaning at high temperature and regenerate noble metal catalyst, reach the effect for thoroughly effectively cleaning three-way catalytic converter, and component biological degradability used in the three-element catalytic cleaning agent of the present invention is good, is a kind of environmentally friendly three-element catalytic cleaning agent.
Description
Technical field
The present invention relates to cleaning agent field, more particularly to a kind of preparation of environment-friendly type three-element catalytic cleaning agent.
Background technology
With rapid development of economy, China turns into second-biggest-in-the-world automobile market and the third-largest automobile making base.
Over nearly 10 years, Chinese automobile yield average growth rate is 13% or so.The year two thousand twenty is expected, China's total vehicle will be more than 1.5
Hundred million.The development of auto industry brings the environmental problem of sternness, and automobile exhaust pollution accounts for the 60~70% of whole atmosphere pollution.
Substantial amounts of motor vehicle exhaust emission has caused large-scale haze weather and photochemical fog, has a strong impact on the trip of people and is good for
Health.
Three-way catalytic converter is the outer exhaust gas cleaner of most important machine in automobile exhaust system, and automobile engine passes through
When blast pipe is vented, carbon monoxide, three kinds of gases of hydrocarbon and oxynitrides pass through Three-component Catalytic Converters for Automobiles point
When Jian Ge not scribble the grid using rare precious metals such as rhodium, platinum, palladium layers as catalyst, the activity of three kinds of gas is enhanced, is passed through
Oxidationreduction chemical reaction is carried out in Three-component Catalytic Converters for Automobiles, by the oxygen at high temperature of the carbon monoxide in vehicle exhaust
Colourless nontoxic carbon dioxide is melted into, hydrocarbon is oxidized to water and carbon dioxide at high temperature, and oxynitrides exists
It is reduced under high temperature and is converted into nitrogen and oxygen, so that exhaust is purified.Rare precious metals are opened in three-way catalytic converter
The temperature that works of beginning is 200 DEG C or so, optimum working temperature at 400~800 DEG C, and more than 1000 DEG C after be used as catalyst
Itself chemical change will also occur for rare precious metals composition, so that the effective catalyst composition of automobile three-way catalysts grid
Reduction, catalytic action weakens.
When automobile is used for a long time, the imperfect combustion of the sulphur in fuel oil, the phosphorus in lubricating oil and zinc and fuel oil can be caused
In the fuel oil of three-way catalyst poisoning and deactivation, especially low and middle-grade lubricating oil and inferior quality the objectionable impurities such as sulfur-bearing, phosphorus compared with
Many, it more easily causes three-way catalyst poisoning and deactivation.On the other hand, because congestion in road causes automobile engine to dally, or
When automobile is travelled at a slow speed, or driving conditions are poor, and engine hinders for some reason causes the duration of ignition slow or individual cylinder excessively to catch fire not
Work or oil spout is normal but the phenomenon such as difficulty in starting, gaseous mixture overrich, engine burn oil, all can make automobile engine enter, arrange
Colloid carbon distribution is carbonized in gas and fuel system.However, gum deposit carbide easily blocks Three-component Catalytic Converters for Automobiles simultaneously
Absorption forms chemisorbed complex compound, causes catalyst inactivation on catalyst activity surface.Not exclusively fired by phosphorus, sulphur and fuel oil
Catalyst inactivation caused by burning, can recover, but the noble metal in three-way catalytic converter is returned again under certain condition
Receive and utilize, its rate of recovery is relatively low；On the other hand, platinum, rhodium, palladium are noble metal, if rejoining catalyst, its cost is higher.
Therefore, Chinese patent CN201410039967.0 discloses a kind of ternary catalyzing unit cleaning agent and preparation method thereof,
The active ingredient of wherein disclosed ternary catalyzing unit cleaning agent is organic monoacid and EDTA, and organic monoacid has to three-way catalyst
Certain power of regeneration, but when platinum catalyst partial oxidation, organic monoacid can not then play a role completely.EDTA is at present should
Extensive metal chelating agent is used, complex compound can be formed with many metals, but EDTA stability is strong, is difficult biological drop in the environment
Solution, Metal ion release to external environment may be caused environmental pollution by it.Chinese patent CN101982542A discloses one kind
Special cleaning agent for three-way, also simply carries out a step cleaning to three-element catalytic at normal temperatures, can only remove absorption
The complex compounds such as sulphur, phosphorus, it is impossible to regenerated to noble metal catalytic activity itself.
Accordingly, it would be desirable to which a kind of environment-friendly type three-element catalytic cleaning agent is periodically to the precious metal catalyst in three way catalytic conversion device
Agent is cleaned, and removes complex compound of the absorption on three-way catalyst, extends the use time of three way catalytic conversion device, reduction
Auto repair upkeep cost.
The content of the invention
For the deficiency of prior art, the invention provides a kind of environment-friendly type three-element catalytic cleaning agent.The cleaning agent is extremely
Include the component of following weight percent content less：0.5~0.8% hydrochloric acid, 10~20% EDDS, 6~15% it is peace and quiet
Agent, 5~15% anti-incrustation corrosion inhibitor, 5% cosolvent and deionized water.Wherein, the hydrochloric acid, EDDS, described clear
Net agent, the anti-incrustation corrosion inhibitor, the percetage by weight sum of the cosolvent and deionized water are 100%.Preferably, it is described
The weight percent content of hydrochloric acid is 0.65~0.8%, and the weight percent content of the EDDS is 15~20%, described peace and quiet
The weight percent content of agent is 10~15%, and the weight percent content of the anti-incrustation corrosion inhibitor is 10~15%, described helped
The percentage by weight of solvent is 5%, and surplus is deionized water.
According to a preferred embodiment, the detersive is by alkyl phosphate, polyalkylene glycol monoalkyl ether, aliphatic acid
The complex detergents that two or three of component in diethanol amine is formed after compounding in proportion, and the complex detergents pass through
Solubility parameter after compounding changes to dissolve sulphur phosphorus complex, carbon distribution, colloid and/or the incrustation on three-way catalytic converter.
The cleaning agent of the present invention belongs to benzene-free formula, and it is used for the cleaning of three-way catalytic converter, can effectively remove three way catalytic conversion
Sulphur phosphorus complex, carbon distribution, colloid and the incrustation formed on device；Importantly, the cleaning agent of the present invention is in cleaning three-element catalytic
The liquid remained after converter is without specially treated, even if entering combustion chamber by gas handling system, also will not be to intake valve, oil spout
The part such as mouth and combustion chamber produces negative interaction, on the contrary, the cleaning action of the residual liquid entered, it might even be possible to reduce air inlet
Carbon distribution and paint film in valve, atomizer and combustion chamber.
According to a preferred embodiment, described 6~15% detersive be by 2~5% alkyl phosphate, 2~5%
Polyalkylene glycol monoalkyl ether and 2~5% fatty acid diethanolamines composition mixture.The alkyl phosphate that the present invention is used,
It has the characteristics such as excellent wetability, detergency, solubilising, dispersiveness, lubricity, anticorrosion, and its biological degradability is good, poison
Property and the general surfactant of excitant ratio are low, and the especially performance such as heat endurance, alkaline-resisting and electrolyte-resistant is all preferable.Poly- second
Glycol monoalkyl ether has good dirt-removing power, and plays the role of certain greasy property and antirust.Three kinds of solvents individually make
The solubility parameter of used time immobilizes, it is impossible to the polymer such as effective dissolving carbon distribution, but by a certain percentage after compounding, is combined molten
The solubility parameter of agent can change within the specific limits, can preferably remove the polymer such as sulphur phosphorus complex, dissolving carbon distribution.
The detersive of the present invention passes through three by alkyl phosphate, polyalkylene glycol monoalkyl ether, three kinds of material compositions of fatty acid diethanolamine
The synergy of person, while the three-element catalytic cleaning agent for ensureing the present invention has good detergency, also with lubrication and anti-
Rust ability.
According to a preferred embodiment, the detersive is by alkyl phosphate, polyalkylene glycol monoalkyl ether and aliphatic acid
Three kinds of material compositions of diethanol amine.Preferably, the molecular weight of the alkyl phosphate is 150~400.The alkoxy polyalkylene glycol mono
The formula of base ether is RO- (CH2CH2O)nIn-H, formula, R is the alkyl of carbon number 1~30, and n is 1~60 integer.The aliphatic acid
Diethanol amine is to react obtained oleic acid diethanol amine by oleic acid and diethanol amine, and the pH of the oleic acid diethanol amine is
5.0~8.0.It is highly preferred that the formula of the polyalkylene glycol monoalkyl ether is RO- (CH2CH2O)nIn-H, formula, R is carbon number 2~6
Alkyl, n be 2~6 integer.The detersive of the present invention selects alkyl phosphate, polyalkylene glycol monoalkyl ether, oleic acid diethanol
Three kinds of material compositions of amine, solubility parameter when three kinds of solvents are used alone immobilizes, it is impossible to which effective dissolving carbon distribution etc. is poly-
Compound, but by a certain percentage after compounding, the solubility parameter of double solvents can change within the specific limits, be joined by solubility
Several changes can preferably remove the polymer such as sulphur phosphorus complex, dissolving carbon distribution, can reach more preferable cleaning performance.
According to a preferred embodiment, the cosolvent is acetone and isopropanol.Preferably, the cosolvent is acetone
It is formulated with isopropanol according to percentage by weight for 1 ︰ 1.Acetone and isopropanol all have excellent hydrotropy dissolubility, Ke Yijia
The dissolving of the polymer such as fast sulphur phosphorus complex and carbon distribution.
According to a preferred embodiment, the concentration of the hydrochloric acid is 10%, and the EDDS is (S, S)-EDDS, the resistance
Dirty corrosion inhibiter is 1-hydroxy ethylidene-1,1-diphosphonic acid.The component that the present invention is selected both can effectively remove sulphur in three-way catalytic converter,
Phosphorus complex and carbon distribution compound, can also avoid catalyst and carrier in three-way catalytic converter from being destroyed.The present invention
The anti-incrustation corrosion inhibitor 1-hydroxy ethylidene-1,1-diphosphonic acid of selection, is not only acted on good corrosion-mitigation scale-inhibition, and can also be with various metals
Ion forms stable complex compound, accelerates the material dissolving on three-way catalytic converter.The EDDS that the present invention is selected is ethylenediamine
Disuccinic acid, it is similar to EDTA, and complex compound can be formed with many metals, and the complex compound that EDDS is formed is in general soil
It can be decomposed, environment will not be polluted in scour process.The EDDS of the present invention is preferably (S, S)-EDDS.(S,S)-
EDDS has more preferable effect compared to its isomers (R, S)-EDDS to the regeneration of noble metal catalyst.(S, S)-EDDS's
Structural formula is：
The opposing party of the present invention additionally provides the application method of the three-element catalytic cleaning agent.Preferably, the user
Method includes different steps according to the state of three-way catalytic converter.It is highly preferred that during three-way catalytic converter Severe blockage, profit
With sulphur, phosphorus complex and the carbon distribution of diluted acid, EDDS and detersive under normal temperature condition in effective removal three-way catalytic converter
Compound；After automobile of the three-way catalytic converter after preliminary cleaning can start or for can normally start, using hanging
Bottle connects the vacuum tube of engine by woven hose, and the noble metal catalyst of three-way catalytic converter is regenerated.More preferably
Ground, when three-way catalytic converter blocks not serious, can directly connect the vacuum tube of engine, to three using transfusion bottle by woven hose
The noble metal catalyst of first catalytic converter is regenerated.
Diluted acid HCl, EDDS and detersive that the present invention is selected can wash absorption on three-way catalyst at normal temperatures
Sulphur, phosphorus complex and carbon distribution compound；After the cleaning of grid wire side is more clean in three-way catalytic converter, startup is started
Machine, cleaning fluid is entered from engine rubber vacuum pipe, under the high temperature conditions, and dilute HCl produces gaseous chlorine, in gaseous state cl concn
In the case of higher, the metal crystals of original large volume adsorbed are consumed, precious metal chloride intermediate product is generated
MOxCly, to increase the noble metal of small particle, to be lived again to noble metal, improve its catalytic activity.
According to a preferred embodiment, during three-way catalytic converter Severe blockage, the cleaning agent cleans three-element catalytic
The process of converter at least comprises the following steps：
S1：The three-way catalytic converter dismantled is positioned in cleaning container, one end is blocked with rubber, uses pneumatic gun
Or aerosolizer injects directly to the environment-friendly type three-element catalytic cleaning agent from the other end catalysis of the three-way catalytic converter
In agent carrier, until three-way catalytic converter is all soaked.Wait for quietly after 2h, open one end of closure, release the three-element catalytic
Cleaning agent is placed in special container.
S2：Three-way catalytic converter carrier is sprayed water with giant, the cleaning agent remained in carrier is cleaned and gives up
Placed after liquid to natural drying or hot blast drying.
S3：The three-way catalytic converter is attached on automobile exhaust system, by the three-element catalytic cleaning agent 250~
500ml is poured into special container, is inserted into by woven hose in automobile engine rubber air inlet vacuum tube, starts engine idling
Operating.Preferably, discharge capacity 2.0L and above vehicle keep idling mode, and the following vehicle holding engine speed of discharge capacity 2.0L is
1500~2000r/min.Then the slow flow control valve for opening cleaning equipment, is sucked cleaning agent using atmospheric pressure, is made clear
Enter engine combustion after lotion atomization.Cleaning agent flux control there is slight jitter to be optimal using engine.If cleaned
Cheng Zhong, engine shake is serious, reduces cleaning agent flux immediately to engine work.
S4：The rotating speed of engine is kept to regenerate noble metal catalyst.Preferably, it is maintained at the height of engine operation
Under warm environment, noble metal catalyst is regenerated.
S5：After the completion of cleaning, opened the throttle repeatedly after 2~3min of engine idling operation, lambda sensor and ternary are urged
The attachment discharge that change converter surface is cleaned and comes off, until blast pipe is discharged without grey black or cyan smog, is extracted defeated
Liquid pipe.
According to a preferred embodiment, three-way catalytic converter not Severe blockage when, cleaning agent cleaning ternary is urged
The process for changing converter at least comprises the following steps：
S1：Start engine, engine is extinguished after engine water temperature is normal.
S2：The transfusion bottle that will be equipped with the environment-friendly type three-element catalytic cleaning agent is connected with vacuum tube, starts engine.It is preferred that
Ground, discharge capacity 2.0L and above vehicle keep idling mode, the following vehicles of discharge capacity 2.0L keep engine speed be 1500~
2000r/min.Then the slow flow control valve for opening cleaning equipment, cleaning agent is sucked, make cleaning agent mist using atmospheric pressure
Enter engine combustion after change.Cleaning agent flux control there is slight jitter to be optimal using engine.If in cleaning process, hair
Motivation shake is serious, reduces cleaning agent flux immediately to engine work.
S3：Cleaning agent enters engine from vacuum tube, reaches three-way catalytic converter to it by combustion chamber and blast pipe
Cleaned, and keep the rotating speed of engine to regenerate noble metal catalyst.Preferably, it is maintained at engine operation
Under hot environment, noble metal catalyst is regenerated.
S4：Engine speed is kept to discharge residual night and extract woven hose after catalyst regeneration ending.
S5：Driving 5~10km of traveling is so that engine is carried out adaptively, with this to operating mode after cleaning after cleaning is finished
Reduce engine wear.
According to a preferred embodiment, when cleaning three-way catalytic converter using the cleaning agent, according to engine fortune
Jitter conditions when turning control the flow of cleaning agent.
According to a preferred embodiment, the controlling of cleaning agent flux has slight jitter to be optimal when being operated using engine.
If in cleaning process, engine shake is serious, reduce cleaning agent flux immediately to engine work.Pass through engine
Jitter conditions control the flow of cleaning agent, not only intuitively, and contribute to protection engine without prejudice.The consumption of cleaning agent
It is very few, easily cause and clean not thorough, the consumption of cleaning agent is excessive, easily make the coating of engine surface suffer damage to reduce hair
The service life of motivation.It is of particular importance that the suitable cleaning agent flux of control, contributes to cleaning agent to pass through combustion chamber and exhaust
Pipe, which is reached after three-way catalytic converter, has the suitable temperature and concentration regenerated to noble metal catalyst.
According to a preferred embodiment, when cleaning three-way catalytic converter using the cleaning agent, started by control
The rotating speed of machine controls the reaction temperature regenerated to noble metal catalyst.
According to a preferred embodiment, clean three-way catalytic converter using the cleaning agent and start after engine,
Discharge capacity 2.0L and above vehicle keep idling mode, and the following vehicles of discharge capacity 2.0L keep engine speed to be 1500~2000r/
min.The optimal hot environment of the invention that engine speed is controlled so that engine holding is regenerated to noble metal catalyst,
To improve the regeneration rate of noble metal catalyst, the reproduction speed of noble metal catalyst is controlled.The optimal hot environment be 400~
800℃.Preferably 400~600 DEG C.More preferably 450~550 DEG C.
Present invention employs diluted acid, EDDS and detersive as cleaning agent compound, on the one hand can to it is completely plugged not
The engine that can start enables the engine to open by tentatively cleaning its sulphur phosphorus complex of removing and carbon distribution deposit at normal temperatures
It is dynamic, then start engine idling and carry out secondary cleaning at high temperature, noble metal is urged to greatest extent by EDDS complex compounds
Agent is regenerated, and reaches thoroughly the effectively effect of cleaning three-way catalytic converter.On the other hand, three-element catalytic of the invention is clear
Component biological degradability is good used in lotion, is a kind of environmentally friendly three-element catalytic cleaning agent.
The sediments such as three-element catalytic cleaning agent atomizer also capable of washing, the carbon distribution of combustion chamber, the impurity of the present invention.
Embodiment
It is described in detail with reference to embodiment.
The invention provides a kind of environment-friendly type three-element catalytic cleaning agent, the cleaning agent at least includes following percentage by weight
The component of content：0.5~0.8% hydrochloric acid, 10~20% EDDS, 6~15% detersive, 5~15% scale inhibitor
Agent, 5% cosolvent and deionized water.Wherein, the hydrochloric acid, the EDDS, the detersive, the anti-incrustation corrosion inhibitor,
The percetage by weight sum of the cosolvent and deionized water is 100%.Preferably, detersive is by alkyl phosphate, gathered
The complex detergents that two or three of component in ethylene glycol monoalkyl ether and fatty acid diethanolamine is formed after compounding in proportion.
According to a preferred embodiment, the cleaning agent by by 0.5~0.8% hydrochloric acid, 10~20% EDDS,
It is made after 6~15% detersive, 5~15% anti-incrustation corrosion inhibitor, 5% cosolvent and deionized water are well mixed.Its
In, the hydrochloric acid, the EDDS, the detersive, the anti-incrustation corrosion inhibitor, the weight hundred of the cosolvent and deionized water
Fraction sum is 100%.
According to a preferred embodiment, 6~15% detersive be by 2~5% alkyl phosphate, 2~5% it is poly-
The mixture of ethylene glycol monoalkyl ether and 2~5% fatty acid diethanolamine composition.Alkyl phosphate, polyalkylene glycol monoalkyl
For ether, the percentage by weight of fatty acid diethanolamine are with respect to three-element catalytic cleaning agent.
According to a preferred embodiment, alkyl phosphate is a kind of function admirable, widely used surfactant, it
With characteristics such as excellent wetability, detergency, solubilising, dispersiveness, lubricity, anticorrosions, its biological degradability is good, toxicity
General surfactant is low with excitant ratio, and the especially performance such as heat endurance, alkaline-resisting and electrolyte-resistant is all preferable.Alkyl phosphorus
Acid esters main effect model is to diffuse into form solubilization micelle in micella by colloid molecule.The present invention uses alkyl phosphate
Pfpe molecule amount is 150~400, and at this moment peace and quiet dispersion effect is optimal.Because when dispersant molecule amount is smaller, its space bit
Resistance is also smaller, and scattered micelle is easily close to each other and collides, and causes the formation of big micelle and is easier occur coagulation.And work as
When molecular weight is excessive, the generation of carbon distribution, therefore the molecular weight of selection alkyl phosphate can be increased due to the coking of itself again
For 150-400.The alkyl phosphate that the present invention is used contains nitrogen-atoms, and it has polarity, can adsorb and reach one in colloid surface
Fixed absorption coverage rate, the dispersion temperature effect to colloid is stronger, therefore can increase solubilized rate, reduces coking rate.
According to a preferred embodiment, the formula of polyalkylene glycol monoalkyl ether is RO- (CH2CH2O)nIn-H, formula, R is
The alkyl of carbon number 1~30, n is 1~60 integer.It is highly preferred that the formula of polyalkylene glycol monoalkyl ether is RO- (CH2CH2O)n-
In H, formula, R is the alkyl of carbon number 2~6, and n is 2~6 integer.There are alkyl, hydroxyl, ehter bond in polyalkylene glycol monoalkyl ether molecule
And ester bond, it has alcohols, ethers and esters solvent characteristic concurrently, is a kind of solvent of excellent performance.While polyalkylene glycol monoalkyl
Ether has stronger hydrogen bond action, can have solubilizing effect to oily matter as a variety of organic solvents and the strong coupling agent of water.Clearly
Polyalkylene glycol monoalkyl ether is added in lotion, its synergy with wetting agent can be effectively improved, contributes to point of oily matter
Scattered, stable emulsion and dissolving.
According to a preferred embodiment, fatty acid diethanolamine is oleic acid diethanol amine.Preferably, oleic acid diethanol amine
It is to be made by oleic acid and diethanol amine reaction, and the pH of oleic acid diethanol amine is 5.0~8.0.Oleic acid diethanol amine has good
Good dissolubility, its as detersive component, with it is good emulsify, antistatic, anti-fog, friction resistant and rustless property.
According to a preferred embodiment, cleaning agent possesses preferable cleaning performance, it is necessary to add cosolvent.Cosolvent
Effect be macromolecular chain rupture in the solubility parameter for adjusting whole dicyandiamide solution, the carbon deposit that accelerates the failure, reinforcing infiltration, be swelled
Effect.According to solvation principle, low relative molecular mass solvent should be selected, it is preferable that cosolvent is in acetone and isopropanol
It is one or two kinds of.It is highly preferred that a variety of cosolvent collocation uses can accelerate carbon distribution to dissolve.It is highly preferred that the present invention selects acetone
According to percentage by weight it is the mixtures that are formulated of 1 ︰ 1 as cosolvent with isopropanol.
According to a preferred embodiment, the EDDS is (S, S)-EDDS.The EDDS that the present invention is selected is ethylenediamine two
Butanedioic acid, it is similar to EDTA, and complex compound can be formed with many metals, and the complex compound of EDDS formation is rushed in general soil
It can be decomposed, environment will not be polluted during brush.The EDDS of the present invention is preferably (S, S)-EDDS.(S,S)-
EDDS has more preferable effect compared to its isomers (R, S)-EDDS to the regeneration of noble metal catalyst.(S, S)-EDDS's
Structural formula is：
According to a preferred embodiment, the anti-incrustation corrosion inhibitor is 1-hydroxy ethylidene-1,1-diphosphonic acid.The scale inhibition that the present invention is selected
Corrosion inhibiter 1-hydroxy ethylidene-1,1-diphosphonic acid, it not only there is good corrosion-mitigation scale-inhibition to act on, and can also be formed with many kinds of metal ions
Stable complex compound, accelerates the material dissolving on three-way catalytic converter.
According to a preferred embodiment, during three-way catalytic converter Severe blockage, the cleaning agent cleans three-element catalytic
The process of converter at least comprises the following steps：
S1：The three-way catalytic converter dismantled is positioned in cleaning container, one end is blocked with rubber, uses pneumatic gun
Or aerosolizer injects directly to the environment-friendly type three-element catalytic cleaning agent from the other end catalysis of the three-way catalytic converter
In agent carrier, until three-way catalytic converter is all soaked.Wait for quietly after 2h, open one end of closure, release the three-element catalytic
Cleaning agent is placed in special container.
S2：Three-way catalytic converter carrier is sprayed water with giant, the cleaning agent remained in carrier is cleaned and gives up
Placed after liquid to natural drying or hot blast drying.
S3：The three-way catalytic converter is attached on automobile exhaust system, by the three-element catalytic cleaning agent 250~
500ml is poured into special container, is inserted into by woven hose in automobile engine rubber air inlet vacuum tube, starts engine idling
Operating.Preferably, discharge capacity 2.0L and above vehicle keep idling mode, and the following vehicle holding engine speed of discharge capacity 2.0L is
1500~2000r/min.Then the slow flow control valve for opening cleaning equipment, is sucked cleaning agent using atmospheric pressure, is made clear
Enter engine combustion after lotion atomization.Cleaning agent flux control there is slight jitter to be optimal when being operated using engine.If
In cleaning process, engine shake is serious, reduces cleaning agent flux immediately to engine work.
S4：The rotating speed of engine is kept to regenerate noble metal catalyst.Preferably, it is maintained at the height of engine operation
Under warm environment, noble metal catalyst is regenerated.
S5：After the completion of cleaning, opened the throttle repeatedly after 2~3min of engine idling operation, lambda sensor and ternary are urged
The attachment discharge that change converter surface is cleaned and comes off, until blast pipe is discharged without grey black or cyan smog, is extracted defeated
Liquid pipe.
According to a preferred embodiment, three-way catalytic converter not Severe blockage when, cleaning agent cleaning ternary is urged
The process for changing converter at least comprises the following steps：
S1：Start engine, engine is extinguished after engine water temperature is normal.
S2：The transfusion bottle that will be equipped with the environment-friendly type three-element catalytic cleaning agent is connected with vacuum tube, starts engine.It is preferred that
Ground, discharge capacity 2.0L and above vehicle keep idling mode, the following vehicles of discharge capacity 2.0L keep engine speed be 1500~
2000r/min.Then the slow flow control valve for opening cleaning equipment, cleaning agent is sucked, make cleaning agent mist using atmospheric pressure
Enter engine combustion after change.Cleaning agent flux control there is slight jitter to be optimal when being operated using engine.If cleaned
Cheng Zhong, engine shake is serious, reduces cleaning agent flux immediately to engine work.
S3：Cleaning agent enters engine from vacuum tube, reaches three-way catalytic converter to it by combustion chamber and blast pipe
Cleaned, and keep the rotating speed of engine to regenerate noble metal catalyst.Preferably, it is maintained at engine operation
Under hot environment, noble metal catalyst is regenerated.
S4：Engine speed is kept to discharge residual night and extract woven hose after catalyst regeneration ending.
S5：Driving 5~10km of traveling is so that engine is carried out adaptively, with this to operating mode after cleaning after cleaning is finished
Reduce engine wear.
Embodiment 1
Choose the raw material of following weight percent content：0.5wt% hydrochloric acid, 10wt% S, S-EDDS, by 2wt%'s
The detersive of the fatty acid diethanolamine composition of alkyl phosphate, 2wt% polyalkylene glycol monoalkyl ether and 2wt%, 5wt%'s
The cosolvent of 1-hydroxy ethylidene-1,1-diphosphonic acid, 5wt%, and 73.5wt% deionized water, by the hydrochloric acid, EDDS, described
Detersive, the 1-hydroxy ethylidene-1,1-diphosphonic acid, the cosolvent, and deionized water are well mixed, obtain the ternary of the present embodiment
Catalyst wash agent.
The three-element catalytic cleaning agent of embodiment 1 is used for into three-way catalytic converter blocking can not normally start old Audi
On.Application process is：
Ternary catalyzing unit is removed together with lambda sensor, the ternary catalyzing unit dismantled is placed in cleaning container, by one
End is blocked with rubber, and the cleaning agent of embodiment 1 is injected directly into automobile three way catalytic conversion with pneumatic gun or aerosolizer
Device, until after three-way catalytic converter all wetting, waiting 2h, being rinsed well with water.200ml cleaning agents are ejected into ternary again
In the carrier of catalytic converter, and 20min is kept, carrier is sprayed water with giant, by the cleaning agent and waste liquid of residual
Placed after cleaning up to natural drying or hot blast drying.
Ternary catalyzing unit is installed, by the way of " beating transfusion bottle ", the cleaning fluid that will be equipped with embodiment 1 passes through woven hose
It is inserted into engine rubber air inlet vacuum tube, starts engine idling operation, cleaning agent is sucked by atmospheric pressure, started
In the hot environment of machine operation, the gaseous chlorine of hydrochloric acid release further regenerates to noble metal catalyst, improves noble metal and urges
The catalytic activity of agent.After the completion of cleaning, woven hose is extracted.
Result after cleaning：Cleaning rear vehicle can normally be run, and be tested on tail-gas analyzer, and exhaust emissions is qualified, tool
Body result see the table below 1：
Automobile emission gas analyzer result after the cleaning agent of the Application Example 1 of table 1
As it can be seen from table 1 blocking the automobile that can not start to three-way catalytic converter using the cleaning agent of the present embodiment
After being cleared up, automobile engine is under low idling and high idle speed two states, the discharge capacity of carbon monoxide and hydrocarbon
Limit value is below, therefore, cleaning agent of the invention, which blocks the automobile that can not start for three-way catalytic converter, to be had well
Cleaning action, enables to heavy metal catalyst to be regenerated, and will not be polluted in environment.
Embodiment 2
Choose the raw material of following weight percent content：0.65wt% hydrochloric acid, 15wt% S, S-EDDS, by
The fatty acid diethanolamine composition of 3.5wt% alkyl phosphate, 3.5wt% polyalkylene glycol monoalkyl ether and 3.5wt%
Detersive, 10wt% anti-incrustation corrosion inhibitor, 5wt% cosolvent, and 58.85wt% deionized water, by the hydrochloric acid, institute
State EDDS, the detersive, the anti-incrustation corrosion inhibitor and deionized water well mixed, obtain the three-way catalyst of the present embodiment
Cleaning agent.
Embodiment 3
Choose the raw material of following weight percent content：0.8wt% hydrochloric acid, 20wt% S, S-EDDS, by 5wt%'s
The detersive of the fatty acid diethanolamine composition of alkyl phosphate, 5wt% polyalkylene glycol monoalkyl ether and 5wt%, 15wt%
Anti-incrustation corrosion inhibitor, 5wt% cosolvent, and 44.2wt% deionized water, by the hydrochloric acid, EDDS, described clear
Net agent, the anti-incrustation corrosion inhibitor and deionized water are well mixed, obtain the three-way catalyst cleaning agent of the present embodiment.
By the cleaning agent of embodiment 1, embodiment 2 and embodiment 3 be respectively applied to exercise 70,000 kilometers Toyota Highlander,
The Honda for exercising 60,000 kilometers flies on the Roewe car of 60,000 kilometers of degree and enforcement.
Application process is：Start engine first, engine is extinguished after water temperature is normal；The transfusion bottle that will be equipped with cleaning agent passes through
Woven hose is connected with vacuum tube；Start engine, cleaning agent enters engine by vacuum tube, reached by combustion chamber and blast pipe
Ternary catalyzing unit is cleaned, and in engine high-temperature environment, the gaseous chlorine of release is further carried out to noble metal catalyst
Regeneration, improves the catalytic activity of noble metal catalyst.；After cleaning, engine speed is kept, raffinate is discharged, after the completion of cleaning, pulls out
Go out woven hose.Driving traveling 5-10km, so that engine is carried out adaptively to the operating mode after cleaning.
Concrete outcome such as table 2 below：
Table 2 uses automobile emission gas analyzer result after embodiment 1-3 cleaning agent
As known from Table 2,70,000 kilometers of Toyota Highlander has been exercised before the cleaning agent using embodiment 1, and its engine exists
The discharge capacity of carbon monoxide and hydrocarbon, close to limit value, uses implementation in tail gas under low idling and high idle speed two states
After the three-way catalytic converter cleaning agent of example 1, the carbon monoxide and hydrocarbon of exhaust emissions under low idling and high idle speed
Substantially reduction.The Honda for having exercised 60,000 kilometers flies degree using tail gas is arranged under low idling and high idle speed after the cleaning agent of embodiment 2
The carbon monoxide and hydrocarbon put substantially are reduced.Exercised 60,000 kilometers of Roewe car using after the cleaning agent of embodiment 3
The carbon monoxide and hydrocarbon of exhaust emissions are substantially reduced under low idling and high idle speed.Illustrate that the three-element catalytic of the present invention is clear
Lotion has the palingenesis of preferable cleaning performance and noble metal catalyst to three-way catalytic converter.
The present invention three-element catalytic cleaning agent by using diluted acid, EDDS and detersive complexing agent, by cleaning twice,
There is good cleaning performance to the three-way catalytic converter of automobile can not normally start or bootable.Illustrate the present invention's
Three-element catalytic cleaning agent has good regeneration effect to the noble metal catalyst in three-way catalytic converter, and the present invention
Cleaning agent employs biodegradable EDDS, is a kind of environmentally friendly cleaning agent.
It should be noted that above-mentioned specific embodiment is exemplary, those skilled in the art can disclose in the present invention
Various solutions are found out under the inspiration of content, and these solutions also belong to disclosure of the invention scope and fall into this hair
Within bright protection domain.It will be understood by those skilled in the art that description of the invention is not constituted to right to be illustrative
It is required that limitation.Protection scope of the present invention is limited by claim and its equivalent.
Claims (10)
1. a kind of environment-friendly type three-element catalytic cleaning agent, it is characterised in that the cleaning agent at least contains including following percentage by weight
The component of amount：0.5~0.8% hydrochloric acid, 10~20% EDDS, 6~15% detersive, 5~15% anti-incrustation corrosion inhibitor,
5% cosolvent and deionized water, wherein,
The hydrochloric acid, the EDDS, the detersive, the anti-incrustation corrosion inhibitor, the weight of the cosolvent and deionized water
Percentage sum is 100%.
2. environment-friendly type three-element catalytic cleaning agent as claimed in claim 1, it is characterised in that the detersive is by alkyl phosphoric acid
It is compound clear that two or three of component in ester, polyalkylene glycol monoalkyl ether and fatty acid diethanolamine is formed after compounding in proportion
Net agent, and the complex detergents change to dissolve the sulphur phosphorus on three-way catalytic converter by solubility parameter after compounding
Complex compound, carbon distribution, colloid and/or incrustation.
3. environment-friendly type three-element catalytic cleaning agent as claimed in claim 2, it is characterised in that described 6~15% detersive is
By mixing that 2~5% alkyl phosphate, 2~5% polyalkylene glycol monoalkyl ether and 2~5% fatty acid diethanolamine are constituted
Compound.
4. environment-friendly type three-element catalytic cleaning agent as claimed in claim 3, it is characterised in that described detersive is by alkyl phosphorus
Acid esters, three kinds of material compositions of polyalkylene glycol monoalkyl ether and fatty acid diethanolamine.
5. environment-friendly type three-element catalytic cleaning agent as claimed in claim 4, it is characterised in that the molecule of described alkyl phosphate
Measure as 150~400.
6. environment-friendly type three-element catalytic cleaning agent as claimed in claim 5, it is characterised in that the concentration of the hydrochloric acid is 10%,
The EDDS is (S, S)-EDDS, and the anti-incrustation corrosion inhibitor is 1-hydroxy ethylidene-1,1-diphosphonic acid, and the cosolvent is acetone and isopropanol
It is that 1 ︰ 1 is formulated according to percentage by weight.
7. the environment-friendly type three-element catalytic cleaning agent as described in one of claim 1 to 6, it is characterised in that utilize the cleaning agent
The process of cleaning three-way catalytic converter at least comprises the following steps：
Start engine, engine is extinguished after engine water temperature is normal；
The transfusion bottle that will be equipped with the environment-friendly type three-element catalytic cleaning agent is connected with vacuum tube, starts engine；
Cleaning agent enters engine from vacuum tube, reaches that three-way catalytic converter is carried out clearly to it by combustion chamber and blast pipe
Wash, and keep the rotating speed of engine so that the gas of cleaning agent generation regenerates to noble metal catalyst；
Engine speed is kept to discharge residual night and extract woven hose after catalyst regeneration ending；
Driving 5~10km of traveling is so that engine is carried out adaptively to operating mode after cleaning after cleaning is finished.
8. environment-friendly type three-element catalytic cleaning agent as claimed in claim 7, it is characterised in that the three-way catalytic converter is blocked
When can not normally start to engine, the process for cleaning three-way catalytic converter using the cleaning agent also comprises the following steps：
Start before engine, the three-way catalytic converter dismantled is positioned in cleaning container, one end is blocked with rubber, used
The environment-friendly type three-element catalytic cleaning agent is injected directly to the three-way catalytic converter by pneumatic gun or aerosolizer from the other end
Catalyst carrier in, until three-way catalytic converter all soak；
Wait for quietly after 2h, open one end of closure, release the three-element catalytic cleaning agent and be placed in special container；
Three-way catalytic converter carrier is sprayed water with giant, cleans in carrier and is placed after the cleaning agent and waste liquid of residual
To natural drying or hot blast drying；
The three-way catalytic converter is attached on automobile exhaust system.
9. the environment-friendly type three-element catalytic cleaning agent as described in one of preceding claims, it is characterised in that use the cleaning agent
When cleaning three-way catalytic converter, jitter conditions, discharge capacity when discharge capacity 2.0L and above vehicle are according to engine idling operation
Below 2.0L vehicles keep engine speed when being 1500~2000r/min, and the jitter conditions of engine control the stream of cleaning agent
Amount.
10. the environment-friendly type three-element catalytic cleaning agent as described in one of preceding claims, it is characterised in that use the cleaning agent
When cleaning three-way catalytic converter, control to carry out noble metal catalyst the speed of cleaning and regeneration by controlling the rotating speed of engine
Degree, wherein,
Discharge capacity 2.0L and above vehicle keep idling mode, the following vehicles of discharge capacity 2.0L keep engine speed be 1500~
2000r/min。
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