CN101886002A - A kind of preparation method of composite diesel oil detergent and dispersant - Google Patents
A kind of preparation method of composite diesel oil detergent and dispersant Download PDFInfo
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- CN101886002A CN101886002A CN200910083886XA CN200910083886A CN101886002A CN 101886002 A CN101886002 A CN 101886002A CN 200910083886X A CN200910083886X A CN 200910083886XA CN 200910083886 A CN200910083886 A CN 200910083886A CN 101886002 A CN101886002 A CN 101886002A
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Abstract
本发明提供了一种复合型柴油清净分散剂的制备方法，具体为将异辛酸的稀土盐、小分子胺类Mannich碱和低聚物胺类Mannich碱的有机酸改性产物按照重量比为1∶2∶1的比例混合搅拌复合而得。将这种复合型柴油清净分散剂添加到柴油当中可以有效清除柴油发动机各部件产生的积炭等沉积物，最多可以清除68.5％的沉积物，并能有效改善柴油发动机尾气当中有害物质的排放，它最多可将尾气中CO的排放量降低49.4％，NOx的排放量降低34.2％。The invention provides a preparation method of a compound diesel oil detergent and dispersant, specifically, the organic acid modification product of a rare earth salt of isooctanoic acid, a small molecular amine Mannich base and an oligomer amine Mannich base is 1 by weight. : The ratio of 2:1 is obtained by mixing and stirring. Adding this compound diesel detergent and dispersant to diesel can effectively remove deposits such as carbon deposits produced by various parts of the diesel engine, up to 68.5% of the deposits can be removed, and it can effectively improve the emission of harmful substances in the exhaust of diesel engines. It can reduce the emission of CO in the exhaust gas by up to 49.4%, and the emission of NO x by 34.2%.
Description
Technical field
The present invention relates to a kind of preparation method of composite diesel cleaning and dispersing agent.
Technical background
Along with rapid increase to energy demand, and the increasingly stringent of environmental requirement, diesel oil more and more is subject to people's attention as one of main fuel oil for vehicles.Yet for gasoline cleaning agent, the development of diesel oil detergent is later.Generally speaking, diesel oil detergent is divided into two big classes: grey type purification agent and Ashless type purification agent are arranged.
Having grey type purification agent also to be metal detergent, mainly is the metallorganics of the low strong katalysis of tool of easy betatopic, ionization energy.Metal detergent is the effect highly significant aspect combustion-supporting and smoke elimination, have the katalysis of accelerating the carbon granule oxidation and stop diesel oil under the high temperature anoxic, to be cracked into the anticatalysis effect of carbon granule, can reduce the diesel oil kindling temperature, increase combustionvelocity, promote that diesel oil fully burns, reduce flue dust, CO and NO in the exhaust
xGeneration.
At present, metal mold purification agent on the market all comes with some shortcomings in preparation and application facet, has toxicity as the organic salt of baric, and the organic salt of platinum costs an arm and a leg.So it is very significant developing a kind of cost-effective metal mold purification agent.
The Ashless type purification agent is broadly divided into two classes by its chemical structure: small molecules amine and oligopolymer amine.The small molecules amine is for using detergent-dispersant additive the earliest, as mono butonediimide, two succimide, the hard esteramides of N-benzene etc.The oligopolymer amine comprises alkyl aminate class, polyether monoamine, Mannich reaction product class etc.
Mannich reaction product class is that Texaco company, BP company etc. utilize succinimide and alkylphenol that the product of Mannich reaction takes place in formaldehyde solution in recent years.Synthesizing of this class detergent-dispersant additive also was divided into for two steps, and the first step obtains alkylphenol for the alkylation process by phenol, and second step obtained reaction product for generation Mannich in formaldehyde solution reacts.Mannich alkali has the higher characteristics of thermostability of PIBA (PIBA) class purification agent, can remove the high-temperature component carbon deposit.
Grey type purification agent, Ashless type small molecules amine purification agent and Ashless type oligopolymer amine purification agent will be arranged, these three kinds of detergent-dispersant additives composite efficient detergent-dispersant additive that can compositely be had the peace and quiet effect of high low temperature simultaneously and improve the exhaust emissions effect admixed together.
Improve the vehicle fuel quality and reduce emission of harmful substances in the tail gas, mainly solve at present by two kinds of channels: the one, improve petroleum refining process, improve the productive rate of branched paraffin and aromatic hydrocarbons, reduce olefin(e) centent, to improve octane number of fuel oil and antioxidant property; Be to add effective additives on the other hand,, reduce the oil circuit settling to improve efficiency of combustion.The former fund input is big, and the cycle is longer; The latter does not have particular requirement to device, and less investment, instant effect can greatly reduce fuel oil consumption and discharge of harmful gases.Along with constantly increasing the weight of of China's energy and environmental stress, developing efficiently, the metal mold purification agent is very significant.
Summary of the invention
The invention provides a kind of preparation method of diesel cleaning and dispersing agent, this detergent-dispersant additive is added to can effectively remove the settlings such as carbon deposit that each parts of diesel motor produce in the middle of the diesel oil, can remove 68.5% settling at most.And can effectively improve the central emission of harmful substances of diesel motor exhaust.
According to an aspect of the present invention, a kind of method for preparing diesel cleaning and dispersing agent is provided, it is characterized in that this detergent-dispersant additive is that 1: 2: 1 ratio is mixed and got according to weight ratio by isooctoate of rare earth metal, small molecules amine Mannich alkali and oligopolymer amine Mannich alkali modified with organic acids product under 60 ℃ and middling speed stirring condition.
According to a further aspect in the invention, isooctoate of rare earth metal is isocaprylic acid lanthanum and isocaprylic acid cerium.
According to a further aspect in the invention, small molecules amine Mannich alkali be p-tert-butylphenol, formaldehyde and amine by the product that the Mannich condensation reaction obtains, comprise the Mannich alkali product (M-1) of quadrol, the Mannich alkali product (M-2) of Isopropylamine, the Mannich alkali product (D-18) of stearylamine and the Mannich alkali product (D-H) of diethanolamine.
According to a further aspect in the invention, the product of oligopolymer amine Mannich alkali modified with organic acids product for obtaining by two-step reaction, the first step is that polyamines polyene, formaldehyde and polyoxyethylene nonylphenol ether carry out the Mannich reaction, and second step was the modified with organic acids reaction of the product of Mannich reaction.These products comprise: the laurostearic acid of diethylenetriamine Mannich reaction product (OP-II) and stearic acid modified product, called after OP-II-12 and OP-II-18 respectively; The laurostearic acid of triethylene tetramine Mannich reaction product (OP-III) and stearic acid modified product, called after OP-III-12 and OP-III-18 respectively; The laurostearic acid of tetraethylene pentamine Mannich reaction product (OP-IV) and stearic acid modified product, called after OP-IV-12 and OP-IV-18 respectively.
According to a further aspect in the invention, provide the purposes of above-mentioned composite product as diesel cleaning and dispersing agent.
Embodiment
Embodiment 1
A kind of diesel cleaning and dispersing agent, its preparation method is: the Mannich alkali product (M-2) of isocaprylic acid cerium, Isopropylamine and OP-II-12 are that 1: 2: 1 ratio preparation gets according to weight ratio, the simulating bench test finds that its amount that can make each parts carbon deposit in the diesel motor combustion processes reduces by 45.2%, the quantity discharged of CO in the tail gas can be reduced by 45.4%, NO
xQuantity discharged reduce by 32.2%.
Embodiment 2
A kind of diesel cleaning and dispersing agent, its preparation method is: the Mannich alkali product (D-18) of isocaprylic acid lanthanum, stearylamine and OP-IV-12 are that 1: 2: 1 ratio preparation gets according to weight ratio, the simulating bench test finds that its amount that can make each parts carbon deposit in the diesel motor combustion processes reduces by 68.4%, the quantity discharged of CO in the tail gas can be reduced by 49.4%, NO
xQuantity discharged reduce by 34.2%.
Embodiment 3
A kind of diesel cleaning and dispersing agent, its preparation method is: the Mannich reaction product (D-H) of isocaprylic acid lanthanum, diethanolamine and OP-IV-18 are that 1: 2: 1 ratio preparation gets according to weight ratio, the simulating bench test finds that its amount that can make each parts carbon deposit in the diesel motor combustion processes reduces by 48.6%, the quantity discharged of CO in the tail gas can be reduced by 39.4%, NO
xQuantity discharged reduce by 31.2%.
Embodiment 4
A kind of diesel cleaning and dispersing agent, its preparation method is: the Mannich reaction product (M-1) of isocaprylic acid lanthanum, quadrol and OP-III-12 are that 1: 2: 1 ratio preparation gets according to weight ratio, the simulating bench test finds that its amount that can make each parts carbon deposit in the diesel motor combustion processes reduces by 45.6%, the quantity discharged of CO in the tail gas can be reduced by 49.2%, NO
xQuantity discharged reduce by 33.2%.
Embodiment 5
A kind of diesel cleaning and dispersing agent, its preparation method is: the Mannich reaction product (D-18) of isocaprylic acid lanthanum, stearylamine and OP-III-18 are that 1: 2: 1 ratio preparation gets according to weight ratio, the simulating bench test finds that its amount that can make each parts carbon deposit in the diesel motor combustion processes reduces by 55.3%, the quantity discharged of CO in the tail gas can be reduced by 48.4%, NO
xQuantity discharged reduce by 34.1%.
Embodiment 6
A kind of diesel cleaning and dispersing agent, its preparation method is: the Mannich alkali product (D-18) of isocaprylic acid cerium, stearylamine and OP-II-18 are that 1: 2: 1 ratio preparation gets according to weight ratio, the simulating bench test finds that its amount that can make each parts carbon deposit in the diesel motor combustion processes reduces by 47.2%, the quantity discharged of CO in the tail gas can be reduced by 47.5%, NO
xQuantity discharged reduce by 32.2%.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910083886XA CN101886002A (en) | 2009-05-11 | 2009-05-11 | A kind of preparation method of composite diesel oil detergent and dispersant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910083886XA CN101886002A (en) | 2009-05-11 | 2009-05-11 | A kind of preparation method of composite diesel oil detergent and dispersant |
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| Publication Number | Publication Date |
|---|---|
| CN101886002A true CN101886002A (en) | 2010-11-17 |
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| CN200910083886XA Pending CN101886002A (en) | 2009-05-11 | 2009-05-11 | A kind of preparation method of composite diesel oil detergent and dispersant |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104403708A (en) * | 2014-10-01 | 2015-03-11 | 无棣华信石油技术服务有限公司 | Oil product cleaning agent and preparation method thereof |
| CN106978224A (en) * | 2017-06-08 | 2017-07-25 | 西安万德能源化学股份有限公司 | Composite diesel energy-conservation detersive and preparation method thereof |
| CN116355662A (en) * | 2022-11-16 | 2023-06-30 | 广西国绿节能环保科技有限公司 | Preparation method of naphthenate detergent |
| US12195686B2 (en) | 2022-01-13 | 2025-01-14 | Ecolab Usa Inc. | Antistatic fuel additives |
-
2009
- 2009-05-11 CN CN200910083886XA patent/CN101886002A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104403708A (en) * | 2014-10-01 | 2015-03-11 | 无棣华信石油技术服务有限公司 | Oil product cleaning agent and preparation method thereof |
| CN104403708B (en) * | 2014-10-01 | 2015-12-09 | 无棣华信石油技术服务有限公司 | Oil product purification agent and preparation method thereof |
| CN106978224A (en) * | 2017-06-08 | 2017-07-25 | 西安万德能源化学股份有限公司 | Composite diesel energy-conservation detersive and preparation method thereof |
| US12195686B2 (en) | 2022-01-13 | 2025-01-14 | Ecolab Usa Inc. | Antistatic fuel additives |
| CN116355662A (en) * | 2022-11-16 | 2023-06-30 | 广西国绿节能环保科技有限公司 | Preparation method of naphthenate detergent |
| CN116355662B (en) * | 2022-11-16 | 2025-06-10 | 武汉奥邦表面技术有限公司 | A method for preparing naphthenate detergent |
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Application publication date: 20101117 |