CN102433175A - Diesel fluidity improver composition - Google Patents
Diesel fluidity improver composition Download PDFInfo
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- CN102433175A CN102433175A CN2011103196265A CN201110319626A CN102433175A CN 102433175 A CN102433175 A CN 102433175A CN 2011103196265 A CN2011103196265 A CN 2011103196265A CN 201110319626 A CN201110319626 A CN 201110319626A CN 102433175 A CN102433175 A CN 102433175A
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Abstract
The invention discloses a diesel fluidity improver composition, which belongs to an additive for improving the low-temperature performance of diesel. The composition consists of ethylene vinyl acetate with a molecular weight of 1,000 to 5,000 and polybutadiene with a molecular weight of 1,000 to 4,000. The composition is applicable to improving the low-temperature fluidity of intermediate fractions such as diesel and spray fuel oil.
Description
Solar oil is the major impetus fuel of diesel motor, and along with the development of diesel car and the growth of diesel motor, its increase of production speed is higher than the gasoline rate of growth.Countries in the world all take much count of development of diesel at present, and a large amount of transportation means are to diesel engine development.In recent years, China's diesel oil is in short supply, and can increasing output of diesel oil be an inexorable trend, be one of key of increasing output of diesel oil and improve the diesel oil at low-temperature flowing property.Add cold flow improver and be one of method of the low temperature flowability that improves diesel oil, because add-on is few, cost is low, and is easy to operate, this method has become the prefered method that solves the diesel oil at low-temperature flowing property.This all has crucial meaning to raising product quality, expansion diesel component source, raising refinery economic benefit.
Diesel flow improver is one type can reduce the diesel oil zero pour, improves the chemical substance of its low-temperature fluidity.Concerning diesel oil, the FLOW IMPROVERS that need only in oil, add denier just can reduce cold filter point of diesel oil effectively.This concerning increasing output of diesel oil, energy-conservation, improve production handiness and the economic benefit, be a kind of both easy and effective way, thereby all attach great importance to the research and the product development of the diesel flow improver of new and effective cheapness both at home and abroad.
Background of the present invention
People can trace back to early 1930s the earliest to the technical study of diesel flow improver.Research work over nearly 70 years has been carried out deep research to the mechanism of diesel flow improver.
Diesel pour inhibitor has received increasing attention as improving one of mobile means of diesel oil at low-temperature.Diesel pour inhibitor began in industry, to use in nineteen sixty, the latter half sixties, the American-European low-temperature performance that is used to improve motor vehicle diesel with the low temperature flow promoter success.The seventies, the development of diesel pour inhibitor obtained strong promotion because world's oil price rise causes refinery when refining diesel oil, and the boiling range of relaxing cut is mixed the suitable petroleum fraction of making diesel oil, causes the diesel oil at low-temperature degradation.These products generally have good susceptibility to the diesel oil of wide fraction, mixing diesel oil, can improve the low temperature flowability of diesel oil, can reduce by 5～12 ℃ of the cold filter clogging temperatures of diesel oil, but the amplitude that reduces is little.In addition, above-mentioned low temperature flow promoter does not almost have effect to narrow fraction, very poor to the susceptibility of the diesel oil of some oil field or refinery.Therefore be necessary to develop a kind of low temperature flow promoter that diesel oil is had good susceptibility.
CN1073186 and CN1073187 have introduced with ethene and vinyl acetate between to for plastic and have been raw material, are initiator with the di-cyclohexylperoxy dicarbonate, are solvent with the non-leaded gasoline; Under 40～60 ℃, 5～10MPa pressure, adopting intermittence type polymerization prepared in reaction molecular-weight average is the method for 1000～2500 Injecatable EVA Copolymer type diesel flow improver.
CN1199770 has introduced a kind of low temperature flow improver for diesel fuel and synthesis technique thereof; Close the monomer propenoate with low-molecular-weight polyisobutylene and insatiable hunger and be not higher than in normal pressure, Heating temperature under 100 ℃ the condition once more that copolymerization generates polyisobutene-propenoate; As low temperature flow improver for diesel fuel; The zero pour of diesel oil can not only be reduced, the cold filter clogging temperature of diesel oil can also be reduced effectively.
CN1245207 has introduced a kind of composition as improver for improving flowability of diesel oil, comprises following component: (A) number-average molecular weight is Vilaterm-vinyl acetate ester of 1000～2500; (B) number-average molecular weight is 500～10000 the C6 that is selected from vinylformic acid C6～C22 alkyl ester and copolymer-maleic anhydride～C22 alkyl monoester or diester derivatives or its mixture.Component (A) is 1: 0.1～10 with the weight ratio of component (B).Said composition not only has good pour point depression effect to paraffinic base diesel oil, also has significantly to fall the filter effect.
CN1247888 has introduced a kind of diesel flow improver and preparation method thereof.Mainly contain the two high-carbon-alkyl-styrol copolymers of butene dioic acid and methylacrylic acid high carbon ester-Yodo Sol GH 28; Composite dispersion agent; During preparation; Earlier vinylbenzene, the two high-carbon-alkyls of butene dioic acid, solvent and initiator are stirred in container, and reacted 3～4 hours down, make polymkeric substance (A) at 70～120 ℃; Propenoate, methacrylic ester, solvent and initiator are stirred in container, logical rare gas element N2 or CO2, and under 70 ℃～85 ℃, reacted 3～4 hours, make multipolymer (B); Mix by a certain percentage and get final product.
CN1690176 has introduced a kind of multipolymer that utilizes ethylene-vinylacetate-vinyl alcohol through esterification synthetic intermediate product; Low temperature flow improver for diesel fuel that obtains through the original position amination reaction again and preparation method thereof; The multipolymer that it is characterized in that ethylene-vinylacetate-vinyl alcohol under catalyzer Witco 1298 Soft Acid or the tosic acid effect with the lipid acid of C8～18 after esterification under 130～160 ℃ of conditions; Add aromatic solvent C9; The aliphatic amide that adds C6～18 carries out the compound of aliphatic amide ester of C6～18 that the original position amination obtains fatty ester multipolymer and the Witco 1298 Soft Acid of ethylene-vinyl acetate-C8～18, and the diesel oil of wide fraction, mixing diesel oil are generally had good susceptibility.
CN1215079 has introduced a kind of compsn that contains oil product and divinyl with the hydrogenated copolymer of at least a other diolefine (isoprene is better).Contain divinyl with at least a other diolefine; Especially the block of isoprene or fragment hydrogenated copolymer; This multipolymer contains the fragment or the block of at least a crystallizable fragment or block and at least a low-crystallinity, the former on average account for whole hydrogenated copolymer chains at least about 10% (weight).Be used to improve the additive of oil viscosity.
CN1224050 has introduced to contain and has comprised 1, and the hydrogenated butadiene polymer of 4-divinyl and 1 affixture monomeric unit is as the oleaginous composition of improved viscosity modifier.This viscosity modifier is to comprise 1; 2-divinyl and 1; The hydrogenated diblock or the segmental polyhutadiene of 4-divinyl affixture monomeric unit, this hydrogenated butadiene polymer contain at least a crystallinity fragment or block (it on average constitute whole hydrogenated copolymer chains at least about 10% (weight)) and at least a low-crystalline fragment or block.
CN101838565A has introduced a kind of fuel oil additive; Comprise the oil fuel of main amount and the following compound of minor amount; This compound is uncle or secondary amine or its mixture of (i) ammonia, hydrocarbyl substituted and (ii) contains one or more α; 1 of the material of beta-unsaturated carbonyl, 4-addition reaction product, wherein said compound comprise at least one alkyl that contains at least 10 carbon atoms.Said fuel oil composition has improved low-temperature performance.
CN1287154A discloses a kind of novel being used to and has improved the mobile improving agent of diesel oil at low-temperature.Mainly be by the composite binary built system that forms of specific requirement by a kind of component 2 that contains the component 1 of wax crystal modifier and contain wax crystal dispersing agent with synergistic effect.What component 1 adopted is the multipolymer of ethylene-vinyl acetate, and component 2 then adopts the salt of acid amides or amine.
CN1245207A discloses a kind of composition as improver for improving flowability of diesel oil, comprises following component: (A) number-average molecular weight is Vilaterm-vinyl acetate ester of 1000～2500.(B) number-average molecular weight is the C6 that is selected from vinylformic acid C6～C22 alkyl ester and copolymer-maleic anhydride～C22 alkyl monoester or diester derivatives or its mixture of 500-10000.
Summary of the invention
It is starting material that the object of the invention is to provide a kind of employing plastic of poly vinyl acetate and polyhutadiene, it is mixing in the time of 50～150 ℃, to carry out in the reaction kettle; Keep 90～110 ℃ 3～4 hours; When being cooled to 50 ℃, from reaction kettle, emit product, obtain the method for diesel flow improver.Technical characterictic of the present invention is: with plastic of poly vinyl acetate and polyhutadiene, place the reaction kettle of crossing with nitrogen replacement, in the time of 90～110 ℃, reacted 3～4 hours.Obtain diesel flow improver.
The present invention carries out chemical modification with the polyhutadiene long chain molecule to plastic of poly vinyl acetate, has obtained containing the compsn of the plastic of poly vinyl acetate of polyhutadiene.This compsn has effect preferably as novel diesel flow improver.
Polyhutadiene is a kind of random macromolecular compound, and in its molecular structure, the arrangement of polyhutadiene chain on molecular chain is irregular; And the configuration of unsymmetrical carbon is also different in the molecular chain; Arrange also irregularly, so crystallinity is less, and polarity and snappiness are higher.It has good solubility when diesel oil, the wax crystallization in the diesel oil is had wellability preferably, therefore can reduce the zero pour and the cold filter clogging temperature of diesel oil greatly, diesel oil is had flexibility preferably, thereby be very good diesel flow improver.
Said composition synthetic be with polyhutadiene and plastic of poly vinyl acetate under protection of nitrogen gas; In under 50～150 ℃ in reaction kettle for reaction after 3～4 hours; Resulting mixture; Wherein the mass ratio of plastic of poly vinyl acetate and polyhutadiene is between 1: 0.01～2, preferably between 1: 0.2～1, between preferably 1: 0.3～0.5.Resulting product can be 40～120mm 40 ℃ kinematic viscosity
2/ s.Through embodiment and Comparative Examples (commercial Dissel oil FLOW IMPROVERS), specify technical characterstic of the present invention below.
Embodiment 1
5 kilograms of polyhutadiene and 500 kilograms of plastic of poly vinyl acetate joined in 1000 liters the reaction kettle; Feed nitrogen; Air in the abundant replacement reaction kettle; Heating system with reaction kettle heats reaction kettle, starts the stirring system of reaction kettle simultaneously, and the rotating speed that control is stirred is at 60 rev/mins.When the temperature of reaction kettle reaches 90 ℃, open constant temperature system, reaction kettle is incubated.The temperature of attentive response still does not surpass 120 ℃, this stage, and keep nitrogen that certain flow is arranged, ensure that the nitrogen in the reaction kettle exists.Clock and reacted 4 hours.Be cooled to 50 ℃, add in the exit of reaction kettle and 200 purpose filtering nets are filtered by reaction product.Promptly obtained the diesel flow improver A of polyhutadiene-plastic of poly vinyl acetate.The kinematic viscosity of this product is 47mm
2/ s (40 ℃).
Get this diesel flow improver A 0.1 gram, join in the 100 gram diesel oil (adding dosage is 1000ppm), measure zero pour and the cold filter clogging temperature that adds diesel oil after the agent according to the method for GB/T 510 and SH/T 0248, test-results is seen evaluation result summary sheet 1～2.
Embodiment 2
10 kilograms of polyhutadiene and 500 kilograms of plastic of poly vinyl acetate joined in 1000 liters the reaction kettle; Feed nitrogen; Air in the abundant replacement reaction kettle; Heating system with reaction kettle heats reaction kettle, starts the stirring system of reaction kettle simultaneously, and the rotating speed that control is stirred is at 60 rev/mins.When the temperature of reaction kettle reaches 90 ℃, open constant temperature system, reaction kettle is incubated.The temperature of attentive response still does not surpass 120 ℃, this stage, and keep nitrogen that certain flow is arranged, ensure that the nitrogen in the reaction kettle exists.Clock and reacted 4 hours.Be cooled to 50 ℃, add in the exit of reaction kettle and 200 purpose filtering nets are filtered by reaction product.Promptly obtained the diesel flow improver B of polyhutadiene-plastic of poly vinyl acetate.The kinematic viscosity of this product is 47mm
2/ s (40 ℃).
Get this diesel flow improver B 0.1 gram, join in the 100 gram diesel oil (adding dosage is 1000ppm), measure zero pour and the cold filter clogging temperature that adds diesel oil after the agent according to the method for GB/T 510 and SH/T 0248, test-results is seen evaluation result summary sheet 1～2.
Embodiment 3
30 kilograms of polyhutadiene and 500 kilograms of plastic of poly vinyl acetate joined in 1000 liters the reaction kettle; Feed nitrogen; Air in the abundant replacement reaction kettle; Heating system with reaction kettle heats reaction kettle, starts the stirring system of reaction kettle simultaneously, and the rotating speed that control is stirred is at 60 rev/mins.When the temperature of reaction kettle reaches 90 ℃, open constant temperature system, reaction kettle is incubated.The temperature of attentive response still does not surpass 120 ℃, this stage, and keep nitrogen that certain flow is arranged, ensure that the nitrogen in the reaction kettle exists.Clock and reacted 4 hours.Be cooled to 50 ℃, add in the exit of reaction kettle and 200 purpose filtering nets are filtered by reaction product.Promptly obtained the diesel flow improver C of polyhutadiene-plastic of poly vinyl acetate.The kinematic viscosity of this product is 47mm
2/ s (40 ℃).
Get this diesel flow improver C 0.1 gram, join in the 100 gram diesel oil (adding dosage is 1000ppm), measure zero pour and the cold filter clogging temperature that adds diesel oil after the agent according to the method for GB/T 510 and SH/T 0248, test-results is seen evaluation result summary sheet 1～2.
Embodiment 4
50 kilograms of polyhutadiene and 500 kilograms of plastic of poly vinyl acetate joined in 1000 liters the reaction kettle; Feed nitrogen; Air in the abundant replacement reaction kettle; Heating system with reaction kettle heats reaction kettle, starts the stirring system of reaction kettle simultaneously, and the rotating speed that control is stirred is at 60 rev/mins.When the temperature of reaction kettle reaches 90 ℃, open constant temperature system, reaction kettle is incubated.The temperature of attentive response still does not surpass 120 ℃, this stage, and keep nitrogen that certain flow is arranged, ensure that the nitrogen in the reaction kettle exists.Clock and reacted 4 hours.Be cooled to 50 ℃, add in the exit of reaction kettle and 200 purpose filtering nets are filtered by reaction product.Promptly obtained the diesel flow improver D of polyhutadiene-plastic of poly vinyl acetate.The kinematic viscosity of this product is 47mm
2/ s (40 ℃).
Get this diesel flow improver D 0.1 gram, join in the 100 gram diesel oil (adding dosage is 1000ppm), measure zero pour and the cold filter clogging temperature that adds diesel oil after the agent according to the method for GB/T 510 and SH/T 0248, test-results is seen evaluation result summary sheet 1～2.
Embodiment 5
80 kilograms of polyhutadiene and 500 kilograms of plastic of poly vinyl acetate joined in 1000 liters the reaction kettle; Feed nitrogen; Air in the abundant replacement reaction kettle; Heating system with reaction kettle heats reaction kettle, starts the stirring system of reaction kettle simultaneously, and the rotating speed that control is stirred is at 60 rev/mins.When the temperature of reaction kettle reaches 90 ℃, open constant temperature system, reaction kettle is incubated.The temperature of attentive response still does not surpass 120 ℃, this stage, and keep nitrogen that certain flow is arranged, ensure that the nitrogen in the reaction kettle exists.Clock and reacted 4 hours.Be cooled to 50 ℃, add in the exit of reaction kettle and 200 purpose filtering nets are filtered by reaction product.Promptly obtained the diesel flow improver E of polyhutadiene-plastic of poly vinyl acetate.The kinematic viscosity of this product is 47mm
2/ s (40 ℃).
Get this diesel flow improver E 0.1 gram, join in the 100 gram diesel oil (adding dosage is 1000ppm), measure zero pour and the cold filter clogging temperature that adds diesel oil after the agent according to the method for GB/T 510 and SH/T 0248, test-results is seen evaluation result summary sheet 1～2.
Embodiment 6
130 kilograms of polyhutadiene and 450 kilograms of plastic of poly vinyl acetate joined in 1000 liters the reaction kettle; Feed nitrogen; Air in the abundant replacement reaction kettle; Heating system with reaction kettle heats reaction kettle, starts the stirring system of reaction kettle simultaneously, and the rotating speed that control is stirred is at 60 rev/mins.When the temperature of reaction kettle reaches 90 ℃, open constant temperature system, reaction kettle is incubated.The temperature of attentive response still does not surpass 120 ℃, this stage, and keep nitrogen that certain flow is arranged, ensure that the nitrogen in the reaction kettle exists.Clock and reacted 4 hours.Be cooled to 50 ℃, add in the exit of reaction kettle and 200 purpose filtering nets are filtered by reaction product.Promptly obtained the diesel flow improver F of polyhutadiene-plastic of poly vinyl acetate.The kinematic viscosity of this product is 47mm
2/ s (40 ℃).
Get this diesel flow improver F 0.1 gram, join in the 100 gram diesel oil (adding dosage is 1000ppm), measure zero pour and the cold filter clogging temperature that adds diesel oil after the agent according to the method for GB/T 510 and SH/T 0248, test-results is seen evaluation result summary sheet 1～2.
Embodiment 7
200 kilograms of polyhutadiene and 400 kilograms of plastic of poly vinyl acetate joined in 1000 liters the reaction kettle; Feed nitrogen; Air in the abundant replacement reaction kettle; Heating system with reaction kettle heats reaction kettle, starts the stirring system of reaction kettle simultaneously, and the rotating speed that control is stirred is at 60 rev/mins.When the temperature of reaction kettle reaches 90 ℃, open constant temperature system, reaction kettle is incubated.The temperature of attentive response still does not surpass 120 ℃, this stage, and keep nitrogen that certain flow is arranged, ensure that the nitrogen in the reaction kettle exists.Clock and reacted 4 hours.Be cooled to 50 ℃, add in the exit of reaction kettle and 200 purpose filtering nets are filtered by reaction product.Promptly obtained the diesel flow improver G of polyhutadiene-plastic of poly vinyl acetate.The kinematic viscosity of this product is 47mm
2/ s (40 ℃).
Get this diesel flow improver G 0.1 gram, join in the 100 gram diesel oil (adding dosage is 1000ppm), measure zero pour and the cold filter clogging temperature that adds diesel oil after the agent according to the method for GB/T 510 and SH/T 0248, test-results is seen evaluation result summary sheet 1～2.
Embodiment 8
300 kilograms of polyhutadiene and 300 kilograms of plastic of poly vinyl acetate joined in 1000 liters the reaction kettle; Feed nitrogen; Air in the abundant replacement reaction kettle; Heating system with reaction kettle heats reaction kettle, starts the stirring system of reaction kettle simultaneously, and the rotating speed that control is stirred is at 60 rev/mins.When the temperature of reaction kettle reaches 90 ℃, open constant temperature system, reaction kettle is incubated.The temperature of attentive response still does not surpass 120 ℃, this stage, and keep nitrogen that certain flow is arranged, ensure that the nitrogen in the reaction kettle exists.Clock and reacted 4 hours.Be cooled to 50 ℃, add in the exit of reaction kettle and 200 purpose filtering nets are filtered by reaction product.Promptly obtained the diesel flow improver H of polyhutadiene-plastic of poly vinyl acetate.The kinematic viscosity of this product is 47mm
2/ s (40 ℃).
Get this diesel flow improver H 0.1 gram, join in the 100 gram diesel oil (adding dosage is 1000ppm), measure zero pour and the cold filter clogging temperature that adds diesel oil after the agent according to the method for GB/T 510 and SH/T 0248, test-results is seen evaluation result summary sheet 1～2.
Embodiment 9
400 kilograms of polyhutadiene and 200 kilograms of plastic of poly vinyl acetate joined in 1000 liters the reaction kettle; Feed nitrogen; Air in the abundant replacement reaction kettle; Heating system with reaction kettle heats reaction kettle, starts the stirring system of reaction kettle simultaneously, and the rotating speed that control is stirred is at 60 rev/mins.When the temperature of reaction kettle reaches 90 ℃, open constant temperature system, reaction kettle is incubated.The temperature of attentive response still does not surpass 120 ℃, this stage, and keep nitrogen that certain flow is arranged, ensure that the nitrogen in the reaction kettle exists.Clock and reacted 4 hours.Be cooled to 50 ℃, add in the exit of reaction kettle and 200 purpose filtering nets are filtered by reaction product.Promptly obtained the diesel flow improver I of polyhutadiene-plastic of poly vinyl acetate.The kinematic viscosity of this product is 47mm
2/ s (40 ℃).
Get this diesel flow improver I 0.1 gram, join in the 100 gram diesel oil (adding dosage is 1000ppm), measure zero pour and the cold filter clogging temperature that adds diesel oil after the agent according to the method for GB/T 510 and SH/T 0248, test-results is seen evaluation result summary sheet 1～2.
Embodiment 10
Get diesel flow improver G0.005 gram, join in the 100 gram diesel oil (50ppm), measure zero pour and the cold filter clogging temperature that adds diesel oil after the agent according to the method for GB/T 510 and SH/T 0248, test-results is seen evaluation result summary sheet 3.
Embodiment 11
Get diesel flow improver G0.01 gram, join in the 100 gram diesel oil (100ppm), measure zero pour and the cold filter clogging temperature that adds diesel oil after the agent according to the method for GB/T 510 and SH/T 0248, test-results is seen evaluation result summary sheet 3.
Embodiment 12
Get diesel flow improver G0.05 gram, join in the 100 gram diesel oil (500ppm), measure zero pour and the cold filter clogging temperature that adds diesel oil after the agent according to the method for GB/T 510 and SH/T 0248, test-results is seen evaluation result summary sheet 3.
Embodiment 13
Get diesel flow improver G0.1 gram, join in the 100 gram diesel oil (1000ppm), measure zero pour and the cold filter clogging temperature that adds diesel oil after the agent according to the method for GB/T 510 and SH/T 0248, test-results is seen evaluation result summary sheet 3.
Embodiment 14
Get diesel flow improver G0.2 gram, join in the 100 gram diesel oil (2000ppm), measure zero pour and the cold filter clogging temperature that adds diesel oil after the agent according to the method for GB/T 510 and SH/T 0248, test-results is seen evaluation result summary sheet 3.
Test-results is seen summary sheet 1, table 2 and table 3.
Used diesel oil is the 0# diesel oil of Jinan Refinery in the table 1, in the table 2 used diesel oil be Fushun-10# diesel oil.Used diesel oil is the 0# diesel oil of Jinan Refinery in the table 3.
The evaluation result summary sheet 1 of diesel flow improver in diesel oil
The evaluation result summary sheet 2 of diesel flow improver in diesel oil
The evaluation result summary sheet 3 of diesel flow improver in diesel oil
Claims (8)
1. be used to improve the FLOW IMPROVERS of diesel oil at low-temperature flowing property; It mainly is to be that 1000～5000 ethylene vinyl acetate polymer and molecular weight are the mixture that 1000～4000 polybutadiene polymers constitutes by molecular weight; It is characterized in that adopting molecular weight is that 1000～5000 ethylene vinyl acetate polymer and molecular weight are 1000～4000 polybutadiene polymers; Ratio according to specific is compound, and resultant composition can be improved the performance that diesel oil at low-temperature flows.
2. the plastic of poly vinyl acetate that is used to improve the diesel oil at low-temperature flowing property according to claim 1, the molecular weight that it is characterized in that described plastic of poly vinyl acetate is between 1000～5000.
3. the plastic of poly vinyl acetate that is used to improve the diesel oil at low-temperature flowing property according to claim 1, the content that it is characterized in that ethene in the said compound is between 20～80%, and vinyl acetate content is between 80～20%.
4. the polyhutadiene that is used to improve the diesel oil at low-temperature flowing property according to claim 1, the molecular weight that it is characterized in that said compound is between 1000～4000.
5. the diesel flow improver that is used to improve the diesel oil at low-temperature flowing property according to claim 1; It is characterized in that described two kinds of compounds; The mass ratio of plastic of poly vinyl acetate and polyhutadiene is between 1: 0.01～2; Preferably between 1: 0.2～1, between preferably 1: 0.3～0.5.
6. the diesel flow improver that is used to improve the diesel oil at low-temperature flowing property according to claim 1, the combined temp that it is characterized in that said compsn are 50～150 ℃, preferred 70～120 ℃, and preferably 90～110 ℃.
7. the diesel flow improver that is used to improve the diesel oil at low-temperature flowing property according to claim 1 is characterized in that said compsn can be 40～120mm 40 ℃ kinematic viscosity
2/ s.
8. the diesel flow improver that is used to improve the diesel oil at low-temperature flowing property according to claim 1 is characterized in that the working concentration of said compsn in diesel oil is between 50-2000ppm.
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| CN2011103196265A CN102433175A (en) | 2011-10-20 | 2011-10-20 | Diesel fluidity improver composition |
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| CN2011103196265A CN102433175A (en) | 2011-10-20 | 2011-10-20 | Diesel fluidity improver composition |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105777964A (en) * | 2016-03-15 | 2016-07-20 | 青岛科技大学 | Blended rubber and preparation method thereof as well as application of blended rubber in damping material |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5991193A (en) * | 1982-11-16 | 1984-05-25 | Mitsui Petrochem Ind Ltd | Fuel oil composition |
| RU2100410C1 (en) * | 1996-07-25 | 1997-12-27 | Туманян Борис Петрович | Petroleum composition |
| CN101717671A (en) * | 2009-11-24 | 2010-06-02 | 济南开发区星火科学技术研究院 | Diesel oil addictive with dual functions of reducing condensation and viscosity and preparation method |
-
2011
- 2011-10-20 CN CN2011103196265A patent/CN102433175A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5991193A (en) * | 1982-11-16 | 1984-05-25 | Mitsui Petrochem Ind Ltd | Fuel oil composition |
| RU2100410C1 (en) * | 1996-07-25 | 1997-12-27 | Туманян Борис Петрович | Petroleum composition |
| CN101717671A (en) * | 2009-11-24 | 2010-06-02 | 济南开发区星火科学技术研究院 | Diesel oil addictive with dual functions of reducing condensation and viscosity and preparation method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105777964A (en) * | 2016-03-15 | 2016-07-20 | 青岛科技大学 | Blended rubber and preparation method thereof as well as application of blended rubber in damping material |
| CN105777964B (en) * | 2016-03-15 | 2018-08-24 | 青岛科技大学 | A kind of Blend rubber, preparation method and the application in damping material |
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Application publication date: 20120502 |