CN116285929A - Water-based thickened oil viscosity reducer and preparation method thereof - Google Patents
Water-based thickened oil viscosity reducer and preparation method thereof Download PDFInfo
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- CN116285929A CN116285929A CN202111487546.0A CN202111487546A CN116285929A CN 116285929 A CN116285929 A CN 116285929A CN 202111487546 A CN202111487546 A CN 202111487546A CN 116285929 A CN116285929 A CN 116285929A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 54
- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 29
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 239000003921 oil Substances 0.000 claims abstract description 44
- 229920001661 Chitosan Polymers 0.000 claims abstract description 34
- -1 amido betaine Chemical compound 0.000 claims abstract description 24
- 125000000217 alkyl group Chemical group 0.000 claims abstract description 21
- KWIUHFFTVRNATP-UHFFFAOYSA-N Betaine Natural products C[N+](C)(C)CC([O-])=O KWIUHFFTVRNATP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229960003237 betaine Drugs 0.000 claims abstract description 16
- 238000002156 mixing Methods 0.000 claims abstract description 11
- 239000002994 raw material Substances 0.000 claims abstract description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 47
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 30
- 238000010438 heat treatment Methods 0.000 claims description 30
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 29
- 238000003756 stirring Methods 0.000 claims description 26
- 229910052757 nitrogen Inorganic materials 0.000 claims description 23
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 21
- 239000003054 catalyst Substances 0.000 claims description 17
- HXITXNWTGFUOAU-UHFFFAOYSA-N phenylboronic acid Chemical compound OB(O)C1=CC=CC=C1 HXITXNWTGFUOAU-UHFFFAOYSA-N 0.000 claims description 14
- HTZCNXWZYVXIMZ-UHFFFAOYSA-M benzyl(triethyl)azanium;chloride Chemical compound [Cl-].CC[N+](CC)(CC)CC1=CC=CC=C1 HTZCNXWZYVXIMZ-UHFFFAOYSA-M 0.000 claims description 10
- 239000013067 intermediate product Substances 0.000 claims description 10
- 238000005303 weighing Methods 0.000 claims description 10
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 8
- 241000218194 Laurales Species 0.000 claims description 5
- 230000001276 controlling effect Effects 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 5
- UDGSVBYJWHOHNN-UHFFFAOYSA-N n',n'-diethylethane-1,2-diamine Chemical compound CCN(CC)CCN UDGSVBYJWHOHNN-UHFFFAOYSA-N 0.000 claims description 5
- 230000001603 reducing effect Effects 0.000 claims description 5
- FDRCDNZGSXJAFP-UHFFFAOYSA-M sodium chloroacetate Chemical compound [Na+].[O-]C(=O)CCl FDRCDNZGSXJAFP-UHFFFAOYSA-M 0.000 claims description 5
- 230000008961 swelling Effects 0.000 claims description 5
- 150000003512 tertiary amines Chemical class 0.000 claims description 5
- BGEHHAVMRVXCGR-UHFFFAOYSA-N tridecanal Chemical compound CCCCCCCCCCCCC=O BGEHHAVMRVXCGR-UHFFFAOYSA-N 0.000 claims description 5
- PHXATPHONSXBIL-UHFFFAOYSA-N xi-gamma-Undecalactone Chemical compound CCCCCCCC1CCC(=O)O1 PHXATPHONSXBIL-UHFFFAOYSA-N 0.000 claims description 5
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 2
- 239000000295 fuel oil Substances 0.000 claims 2
- 239000000084 colloidal system Substances 0.000 abstract description 8
- 238000004220 aggregation Methods 0.000 abstract description 7
- 230000002776 aggregation Effects 0.000 abstract description 7
- 239000002245 particle Substances 0.000 abstract description 6
- 239000010779 crude oil Substances 0.000 abstract description 5
- 239000007788 liquid Substances 0.000 abstract description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052799 carbon Inorganic materials 0.000 abstract description 2
- 150000007942 carboxylates Chemical group 0.000 abstract description 2
- 239000013078 crystal Substances 0.000 abstract description 2
- 125000000623 heterocyclic group Chemical group 0.000 abstract description 2
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 239000000839 emulsion Substances 0.000 description 9
- 238000000605 extraction Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 239000007764 o/w emulsion Substances 0.000 description 5
- 239000000047 product Substances 0.000 description 4
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 230000006837 decompression Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 239000003129 oil well Substances 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000007762 w/o emulsion Substances 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/58—Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids
- C09K8/584—Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids characterised by the use of specific surfactants
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C231/00—Preparation of carboxylic acid amides
- C07C231/04—Preparation of carboxylic acid amides from ketenes by reaction with ammonia or amines
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Cosmetics (AREA)
Abstract
The invention provides a water-based thickened oil viscosity reducer and a preparation method thereof, wherein the raw materials comprise 60g of alkyl chitosan amido betaine, 20 g of alkylphenol ethoxylates and 100 g of water, and the water-based thickened oil viscosity reducer is prepared by uniformly mixing 60g of chitosan amido betaine, 20 g of alkylphenol ethoxylates and 100 g of water. According to the invention, the lipophilic group of long-chain carbon is introduced into a molecular structure and is combined with hydrophilic carboxylate groups, hydrophilic groups of the hydrophilic group are combined with water, and the lipophilic group is combined with crude oil, so that a small molecular group of a water jacket oil core with hydrophilic groups outside and lipophilic groups wrapping the crude oil is formed, the two immiscible phases are dissolved, the hydrophilic groups are easy to enter the middle of thick oil molecules, the formation of wax crystals in the thick oil is hindered, meanwhile, the aggregation of colloid asphaltene is also hindered, some overlapped and piled aggregation heterocyclic structures are broken, the number of colloid and asphaltene molecules contained in the aggregation is reduced, the particle size of the oil-water emulsified liquid can be changed, and the large-particle water-in-oil emulsified liquid is converted into small-particle oil-in-water emulsified liquid.
Description
Technical Field
The invention belongs to the technical field of thick oil viscosity reducers, and particularly relates to a water-based thick oil viscosity reducer and a preparation method thereof.
Background
The thickened oil accounts for more than half of the world petroleum, and along with the increase of the exploitation strength of thin oil resources, the exploitation quantity is gradually lower, and especially under the condition of global energy shortage, the exploitation technology of the thickened oil becomes extremely important. The thick oil contains a large amount of colloid and asphaltene, and because the colloid and asphaltene have large molecular weight, hydrogen bonds are easy to form between molecules, so that the molecules have strong aggregation capability, and the fluidity of the thick oil is poor, thus the thick oil is difficult to exploit and transport. The development of thick oil has the problems of complex technology, large equipment investment, strong environmental hazard and the like, and the defects make the development of thick oil industry more difficult.
The polar groups in the oil-soluble viscosity reducer can act with colloid and asphaltene to destroy the aggregate structure of the colloid and asphaltene, so that the viscosity of thick oil is reduced, but the consumption of the oil-soluble viscosity reducer is large, the viscosity reducing efficiency is not high enough, and the production requirement is difficult to reach. The common viscosity reducer can form oil-in-water emulsion at a higher temperature, so that the viscosity reducing effect is obvious, but after the temperature is reduced, the thickened oil is easy to coagulate and aggregate, and the viscosity reducing effect is poor.
Therefore, research on low-temperature-resistant water-based thick oil viscosity reducers is carried out, and the method has important significance for improving the oil extraction speed and recovery ratio of the crude oil.
Disclosure of Invention
In order to solve the technical problems, the invention provides a water-based thickened oil viscosity reducer and a preparation method thereof, wherein the raw materials comprise 60g of alkyl chitosan amido betaine, 20 g of alkylphenol ethoxylates and 100 g of water, and the water-based thickened oil viscosity reducer is obtained by uniformly mixing 60g of chitosan amido betaine, 20 g of alkylphenol ethoxylates and 100 g of water.
Further, the preparation method of the alkyl chitosan amido betaine comprises the following steps:
step one: weighing 70-80 g of dilute acetic acid solution and 5.0-8.0 g of chitosan, adding 30-40 g of ethanol solution into a four-neck flask after swelling for a certain time, stirring uniformly, adding 1.0-3.0 g of benzyl triethyl ammonium chloride catalyst, connecting a condensing device, heating and stirring, controlling the temperature to be 60 ℃ for reacting for 8-10h, stopping heating, regulating the pH value to 7-8 by sodium hydroxide, adding 90-100 g of N, N-diethyl ethylenediamine, mixing uniformly, weighing 3-5 g of catalyst phenylboronic acid, adding into the four-neck flask, starting heating and stirring, introducing nitrogen, adding 5-8 g of catalyst sodium hydroxide when the temperature reaches 110 ℃, stopping heating and introducing nitrogen when the temperature reaches 170-190 ℃, and reacting for 1-2 h at the temperature to obtain an intermediate product of alkyl chitosan tertiary amine;
step two: 150-160g of intermediate product is put into another four-mouth flask, 170-180g of sodium chloroacetate is added from a dropping funnel, a condensing device is connected, heating and stirring are started, nitrogen is introduced, heating and nitrogen introduction are stopped when the temperature reaches 190-200 ℃, the reaction is kept for 0.5-1 h at the temperature, and the alkyl chitosan amidobetaine is obtained after cooling, concentrating and drying.
Specifically, the four-neck flask in the first step and the second step is provided with a mechanical stirrer, a condenser pipe, a dropping funnel, a nitrogen gas introducing device, a pressure reducing device and a water separator.
Specifically, the ethanol solution is one of laural ethanol solution, tridecyl aldehyde ethanol solution or peach aldehyde ethanol solution.
Compared with the prior art, the invention has the beneficial effects that:
(1) The product introduces a lipophilic group of long-chain carbon and a hydrophilic carboxylate group in a molecular structure, combines hydrophilic groups with water, combines lipophilic groups with crude oil, and forms a small molecular group of a water jacket oil core with hydrophilic groups outside and lipophilic groups wrapping the crude oil, so that the water jacket oil core is dissolved in an immiscible two-phase mode, the water jacket oil is easy to enter the middle of thick oil molecules, wax crystals in the thick oil are prevented from being formed, colloid asphaltene aggregation is prevented, a plurality of overlapped and piled aggregation heterocyclic structures are detached, the number of colloid and asphaltene molecules contained in the aggregation is reduced, the particle size of oil-water emulsified liquid can be changed, and the large-particle water-in-oil emulsion is converted into small-particle oil-in-water emulsion.
(2) The viscosity reducer has low use concentration, the viscosity reduction rate is more than 90% when the concentration is 0.1%, the emulsion stability time is longer, the emulsion can be automatically demulsified, the viscosity reducer still has excellent viscosity reduction performance at low temperature, the low temperature resistance is good, the viscosity reducer can continuously play a good role in guaranteeing viscosity reduction effect and fluidity in the lifting process of a field shaft, the friction and the resistance are reduced, and the oil extraction speed is improved.
Detailed Description
The invention is further described below:
example 1:
the water-base viscosity reducer for thick oil is prepared by mixing 60g of alkyl chitosan amido betaine, 20 g of alkylphenol polyoxyethylene and 100 g of water uniformly, wherein the weight of the mixture is 60g of chitosan amido betaine, 20 g of alkylphenol polyoxyethylene and 100 g of water.
The preparation method of the alkyl chitosan amido betaine comprises the following steps:
step one: weighing 70g of dilute acetic acid solution and 5.0 g of chitosan, adding the dilute acetic acid solution and the 5.0 g of chitosan into a four-mouth flask provided with a mechanical stirrer, a condenser tube, a dropping funnel, a nitrogen introducing device, a decompression device and a water distributor, adding 30 g of one of a laural alcohol solution, a tridecyl aldehyde alcohol solution and a peach aldehyde alcohol solution while stirring after swelling for a certain time, adding 1.0 g of catalyst benzyl triethyl ammonium chloride after stirring uniformly, connecting the condensation device, heating while stirring, controlling the temperature to be 60 ℃ for 8 hours, stopping heating, adjusting the pH value to 7 by sodium hydroxide, adding 90 g of N, N-diethyl ethylenediamine, uniformly mixing, weighing 3 g of catalyst phenylboronic acid, adding the catalyst phenylboronic acid into the four-mouth flask, starting heating and stirring, introducing nitrogen at the same time, adding 5g of catalyst sodium hydroxide when the temperature reaches 110 ℃, stopping heating and introducing nitrogen when the temperature reaches 170 ℃, and keeping the temperature for reacting for 1 hour to obtain an intermediate product alkyl chitosan tertiary amine;
step two: 150g of intermediate product is put into another four-mouth flask, 170g of sodium chloroacetate is added from a dropping funnel, a condensing device is connected, heating and stirring are started, nitrogen is introduced, heating and nitrogen introduction are stopped when the temperature reaches 190 ℃, the temperature is kept for reaction for 0.5h, and the product is concentrated and dried after cooling, so that the alkyl chitosan amidobetaine is obtained.
Specifically, performance evaluation experiments of a low-temperature-resistant water-based thick oil viscosity reducer system are carried out, the experimental water is field water, the thick oil of a large harbor oilfield oil extraction three-factory block oil well is adopted, the viscosity reducer system is prepared into a solution with the mass fraction of 0.1% by using the field water, and the oil-water ratio is 7:3, after the constant temperature of 70 ℃ is kept for 30 minutes, the oil-in-water emulsion can be formed by slightly stirring the emulsion with a glass rod, the viscosity reduction rate is 99.2%, the stability is good, the emulsion can be automatically demulsified after 25 minutes, the viscosity of the emulsion is not obviously increased along with the reduction of the temperature, and the viscosity reduction rate is 92.3% at 10 ℃.
Example 2:
the water-base viscosity reducer for thick oil is prepared by mixing 60g of alkyl chitosan amido betaine, 20 g of alkylphenol polyoxyethylene and 100 g of water uniformly, wherein the weight of the mixture is 60g of chitosan amido betaine, 20 g of alkylphenol polyoxyethylene and 100 g of water.
The preparation method of the alkyl chitosan amido betaine comprises the following steps:
step one: weighing 80g of dilute acetic acid solution and 8.0 g of chitosan, adding into a four-mouth flask provided with a mechanical stirrer, a condenser tube, a dropping funnel, a nitrogen introducing device, a decompression device and a water separator, adding 40 g of one of laural alcohol solution, tridecyl aldehyde alcohol solution and peach aldehyde alcohol solution while stirring after swelling for a certain time, adding 3.0 g of catalyst benzyl triethyl ammonium chloride after stirring uniformly, connecting the condensation device, heating while stirring, controlling the temperature to react for 10h, stopping heating, regulating the pH value to 7 by sodium hydroxide, adding 100 g of N, N-diethyl ethylenediamine, uniformly mixing, weighing 5g of catalyst phenylboronic acid, adding into the four-mouth flask, starting heating and stirring, introducing nitrogen at the same time, adding 8 g of catalyst sodium hydroxide when the temperature reaches 110 ℃, stopping heating and introducing nitrogen when the temperature reaches 190 ℃, and keeping the temperature for reacting for 2h to obtain the intermediate product alkyl chitosan tertiary amine.
Step two: 160g of intermediate product is put into another four-mouth flask, 180g of sodium chloroacetate is added from a dropping funnel, a condensing device is connected, heating and stirring are started, nitrogen is introduced, heating and nitrogen introduction are stopped when the temperature reaches 200 ℃, the reaction is kept for 1h at the temperature, and the product is concentrated and dried after cooling, so that the alkyl chitosan amidobetaine is obtained.
Specifically, performance evaluation experiments of a low-temperature-resistant water-based thick oil viscosity reducer system are carried out, the experimental water is field water, the thick oil of a large harbor oilfield oil extraction three-factory block oil well is adopted, the viscosity reducer system is prepared into a solution with the mass fraction of 0.1% by using the field water, and the oil-water ratio is 7:3, after the constant temperature of 70 ℃ is kept for 30 minutes, the oil-in-water emulsion can be formed by slightly stirring the mixture by using a glass rod, the viscosity reduction rate is 98.5%, the stability is good, the emulsion can be automatically demulsified after 30 minutes, the viscosity of the emulsion is not obviously increased along with the reduction of the temperature, and the viscosity reduction rate is 91.7% at 10 ℃.
Example 3:
the water-base viscosity reducer for thick oil is prepared by mixing 60g of alkyl chitosan amido betaine, 20 g of alkylphenol polyoxyethylene and 100 g of water uniformly, wherein the weight of the mixture is 60g of chitosan amido betaine, 20 g of alkylphenol polyoxyethylene and 100 g of water.
The preparation method of the alkyl chitosan amido betaine comprises the following steps:
step one: weighing 750 g of dilute acetic acid solution and 6.0 g of chitosan, adding the dilute acetic acid solution and the 6.0 g of chitosan into a four-mouth flask provided with a mechanical stirrer, a condenser tube, a dropping funnel, a nitrogen introducing device, a decompression device and a water distributor, adding 40 g of one of laural alcohol solution, tridecyl aldehyde alcohol solution and peach aldehyde alcohol solution while stirring after swelling for a certain time, adding 2.0 g of catalyst benzyl triethyl ammonium chloride after stirring uniformly, connecting the condensation device, heating while stirring, controlling the temperature to react for 9h, stopping heating, adjusting the pH value to 7 by sodium hydroxide, adding 100 g of N, N-diethyl ethylenediamine, uniformly mixing, weighing 4 g of catalyst phenylboronic acid, adding the catalyst phenylboronic acid into the four-mouth flask, starting heating and stirring, introducing nitrogen at the same time, adding 6 g of catalyst sodium hydroxide when the temperature reaches 110 ℃, stopping heating and introducing nitrogen when the temperature reaches 180 ℃, and keeping the temperature for reacting for 1h to obtain an intermediate product alkyl chitosan tertiary amine;
step two: 155g of intermediate product is put into another four-mouth flask, 175g of sodium chloroacetate is added from a dropping funnel, a condensing device is connected, heating and stirring are started, nitrogen is introduced, heating and nitrogen introduction are stopped when the temperature reaches 190 ℃, the temperature is kept for reaction for 0.5h, and the product is concentrated and dried after cooling, so that the alkyl chitosan amidobetaine is obtained.
Specifically, performance evaluation experiments of a low-temperature-resistant water-based thick oil viscosity reducer system are carried out, the experimental water is field water, the thick oil of a large harbor oilfield oil extraction three-factory block oil well is adopted, the viscosity reducer system is prepared into a solution with the mass fraction of 0.1% by using the field water, and the oil-water ratio is 7:3, after the constant temperature of 70 ℃ is kept for 30 minutes, the oil-in-water emulsion can be formed by slightly stirring the mixture by using a glass rod, the viscosity reduction rate is 99.0%, the stability is good, and the emulsion can be automatically broken after 30 minutes. With the decrease of the temperature, the viscosity of the emulsion is not obviously increased, and the viscosity reduction rate is 92.1 percent at 10 ℃.
By using the technical scheme of the invention or under the inspired by the technical scheme of the invention, a similar technical scheme is designed by a person skilled in the art, so that the technical effects are achieved, and the technical effects fall into the protection scope of the invention.
Claims (4)
1. The water-based thick oil viscosity reducer is characterized in that the raw materials comprise 60g of alkyl chitosan amido betaine, 20 g of alkylphenol polyoxyethylene and 100 g of water, and the water-based thick oil viscosity reducer is obtained by uniformly mixing 60g of chitosan amido betaine, 20 g of alkylphenol polyoxyethylene and 100 g of water.
2. The water-based thickened oil viscosity reducer and the preparation method thereof as claimed in claim 1, wherein the preparation method of the alkyl chitosan amidobetaine is as follows:
step one: weighing 70-80 g of dilute acetic acid solution and 5.0-8.0 g of chitosan, adding 30-40 g of ethanol solution into a four-neck flask after swelling for a certain time, stirring uniformly, adding 1.0-3.0 g of benzyl triethyl ammonium chloride catalyst, connecting a condensing device, heating and stirring, controlling the temperature to be 60 ℃ for reacting for 8-10h, stopping heating, regulating the pH value to 7-8 by sodium hydroxide, adding 90-100 g of N, N-diethyl ethylenediamine, mixing uniformly, weighing 3-5 g of catalyst phenylboronic acid, adding into the four-neck flask, starting heating and stirring, introducing nitrogen, adding 5-8 g of catalyst sodium hydroxide when the temperature reaches 110 ℃, stopping heating and introducing nitrogen when the temperature reaches 170-190 ℃, and reacting for 1-2 h at the temperature to obtain an intermediate product of alkyl chitosan tertiary amine;
step two: 150-160g of intermediate product is put into another four-mouth flask, 170-180g of sodium chloroacetate is added from a dropping funnel, a condensing device is connected, heating and stirring are started, nitrogen is introduced, heating and nitrogen introduction are stopped when the temperature reaches 190-200 ℃, the reaction is kept for 0.5-1 h at the temperature, and the alkyl chitosan amidobetaine is obtained after cooling, concentrating and drying.
3. The viscosity reducer for water-based heavy oil and the preparation method thereof according to claim 1, wherein the four-necked flask in the first step and the second step is a four-necked flask provided with a mechanical stirrer, a condenser tube, a dropping funnel, a nitrogen-introducing device, a pressure reducing device and a water separator.
4. The viscosity reducer for water-based heavy oil and the preparation method thereof according to claim 1, wherein the ethanol solution is one of laural ethanol solution, tridecyl aldehyde ethanol solution or peach aldehyde ethanol solution.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102153675A (en) * | 2011-03-15 | 2011-08-17 | 中国海洋大学 | N-para benzene hydroxyl carboxymethyl chitosan hyamine and preparation method thereof |
| CN106944014A (en) * | 2016-12-27 | 2017-07-14 | 核工业北京化工冶金研究院 | A kind of preparation method of chitosan quaternary ammonium salt for adsorption uranium |
| CN107362747A (en) * | 2017-07-13 | 2017-11-21 | 中国日用化学工业研究院 | A kind of polymeric anion shell polysaccharide surfactant and preparation method |
| CN109293799A (en) * | 2018-11-07 | 2019-02-01 | 南昌航空大学 | A kind of preparation method of the oil soluble chitosan derivative material with anti-microbial property |
| CN109868129A (en) * | 2019-04-10 | 2019-06-11 | 陕西延长石油（集团）有限责任公司 | A kind of heavy oil production thinner and preparation method thereof |
| CN112266426A (en) * | 2020-11-02 | 2021-01-26 | 天津工业大学 | Alkylated quaternary ammonium type modified chitosan and rabbit hair fabric finishing method thereof |
-
2021
- 2021-12-08 CN CN202111487546.0A patent/CN116285929A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102153675A (en) * | 2011-03-15 | 2011-08-17 | 中国海洋大学 | N-para benzene hydroxyl carboxymethyl chitosan hyamine and preparation method thereof |
| CN106944014A (en) * | 2016-12-27 | 2017-07-14 | 核工业北京化工冶金研究院 | A kind of preparation method of chitosan quaternary ammonium salt for adsorption uranium |
| CN107362747A (en) * | 2017-07-13 | 2017-11-21 | 中国日用化学工业研究院 | A kind of polymeric anion shell polysaccharide surfactant and preparation method |
| CN109293799A (en) * | 2018-11-07 | 2019-02-01 | 南昌航空大学 | A kind of preparation method of the oil soluble chitosan derivative material with anti-microbial property |
| CN109868129A (en) * | 2019-04-10 | 2019-06-11 | 陕西延长石油（集团）有限责任公司 | A kind of heavy oil production thinner and preparation method thereof |
| CN112266426A (en) * | 2020-11-02 | 2021-01-26 | 天津工业大学 | Alkylated quaternary ammonium type modified chitosan and rabbit hair fabric finishing method thereof |
Non-Patent Citations (1)
| Title |
|---|
| MASAICHIRO MASUI: "reaction of N-(1-cyanoalky) alkylideneamine N-oxide with dipolarophiles and nucleophiles. II. 1, 3-addition reaction with carboxamides", 《CHEM PHARM BULL》, vol. 20, no. 10, pages 2150 - 2155 * |
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