CN115261060A - Demulsifier suitable for high-pour-point oil - Google Patents
Demulsifier suitable for high-pour-point oil Download PDFInfo
- Publication number
- CN115261060A CN115261060A CN202211046232.1A CN202211046232A CN115261060A CN 115261060 A CN115261060 A CN 115261060A CN 202211046232 A CN202211046232 A CN 202211046232A CN 115261060 A CN115261060 A CN 115261060A
- Authority
- CN
- China
- Prior art keywords
- reaction
- demulsifier
- reaction kettle
- potassium hydroxide
- polyether
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims abstract description 39
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims abstract description 21
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims abstract description 14
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 claims abstract description 12
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 claims abstract description 10
- RPNUMPOLZDHAAY-UHFFFAOYSA-N Diethylenetriamine Chemical compound NCCNCCN RPNUMPOLZDHAAY-UHFFFAOYSA-N 0.000 claims abstract description 7
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims abstract description 7
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229960000583 acetic acid Drugs 0.000 claims abstract description 7
- 239000012362 glacial acetic acid Substances 0.000 claims abstract description 7
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 claims abstract description 7
- 238000006243 chemical reaction Methods 0.000 claims description 42
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 18
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 12
- 229920000570 polyether Polymers 0.000 claims description 12
- 239000003999 initiator Substances 0.000 claims description 9
- 229910052757 nitrogen Inorganic materials 0.000 claims description 9
- 239000000243 solution Substances 0.000 claims description 7
- 238000004132 cross linking Methods 0.000 claims description 6
- 239000013067 intermediate product Substances 0.000 claims description 6
- 238000006116 polymerization reaction Methods 0.000 claims description 6
- 238000010926 purge Methods 0.000 claims description 6
- 238000006555 catalytic reaction Methods 0.000 claims description 3
- 238000011549 displacement method Methods 0.000 claims description 3
- 238000005886 esterification reaction Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000011259 mixed solution Substances 0.000 claims description 3
- 230000007935 neutral effect Effects 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 230000035484 reaction time Effects 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 239000008096 xylene Substances 0.000 claims description 2
- 239000003921 oil Substances 0.000 abstract description 12
- 239000010779 crude oil Substances 0.000 abstract description 11
- 230000018044 dehydration Effects 0.000 abstract description 3
- 238000006297 dehydration reaction Methods 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000007792 addition Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005345 coagulation Methods 0.000 description 2
- 239000000084 colloidal system Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000004094 surface-active agent Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 1
- 238000010612 desalination reaction Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 230000001815 facial effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G33/00—Dewatering or demulsification of hydrocarbon oils
- C10G33/04—Dewatering or demulsification of hydrocarbon oils with chemical means
Landscapes
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Polyethers (AREA)
Abstract
The invention provides a demulsifier suitable for high pour point oil, which comprises 15% of phenol, 10% of diethylenetriamine, 15% of potassium hydroxide, 40% of propylene oxide, 50% of ethylene oxide, 10% of dimethylbenzene, 4% of toluene diisocyanate, 35% of methanol solution and sufficient glacial acetic acid; the demulsifier provided by the invention can be used for quickly demulsifying and dehydrating crude oil, so that the dehydrated crude oil has clear water and an ideal dehydration effect.
Description
Technical Field
The invention belongs to the technical field of petrochemical industry, and relates to a demulsifier suitable for high pour point oil.
Background
Gathering and transportation of oil and gas pipelines is an important link in the development process of oil and gas fields in the petroleum and natural gas industry. Because the interface of water drops in the crude oil has stable facial masks formed by surface active agents such as colloid, resin, soap and the like and colloidal particles of asphaltene, in order to solve the problems in the oil gas gathering and transportation process, the surface active agent capable of demulsifying the crude oil is the most effective method for chemical demulsification. Therefore, the demulsifier product is a very important auxiliary product in the field of petrochemical industry.
The demulsifier is characterized by dehydration or desalination and generally takes macromolecular hydrophilic and lipophilic groups as basic components. The whole structure of the composite material can be hydrophilic or lipophilic. However, most demulsifiers have strong specificity, which is difficult to meet the demulsification of different crude oil emulsions, and the crude oil also contains high-coagulation high-viscosity crude oil, which is not ideal for demulsifying the high-coagulation crude oil at present because the crude oil contains high-content paraffin, high-content colloid and asphaltene. The existing demulsifier on the market has the problems of poor adaptability to crude oil, low demulsification efficiency, large dosage and the like.
Disclosure of Invention
The invention aims to provide a demulsifier suitable for high pour point oil, which solves the problems in the background technology.
The purpose of the invention can be realized by the following technical scheme: a demulsifier suitable for high pour point oil, the demulsifier comprising 15% phenol, 10% diethylenetriamine, 15% potassium hydroxide, 40% propylene oxide, 50% ethylene oxide, 10% xylene, 4% toluene diisocyanate, 35% methanol solution and sufficient glacial acetic acid;
the preparation method of the demulsifier comprises the following steps:
(1) Preparing an initiator: isolating the reaction kettle from air by using a nitrogen displacement method, heating 15% of phenol and 10% of diethylenetriamine to 130 ℃, adding 5% of potassium hydroxide, performing esterification reaction, and fully reacting for 1-2 h to generate an initiator;
(2) Preparing an intermediate product: replacing air in a reaction kettle containing an initiator by using a nitrogen purging mode, starting to heat up, introducing 40% propylene oxide into the reaction kettle, adding the rest 10% potassium hydroxide, controlling the pressure not to exceed 0.25Mpa, carrying out polymerization reaction under the catalysis of the potassium hydroxide, wherein the polymerization reaction temperature is 130 ℃, the reaction time is 1-0.5 h, and obtaining an intermediate product after the reaction is finished;
(3) Polyether reaction: isolating the reaction kettle containing the intermediate from air in a nitrogen purging mode, lowering the pressure and the temperature, introducing 50% of ethylene oxide into the reaction kettle while starting to heat, controlling the pressure to be not more than 0.25Mpa, carrying out polyether reaction at the reaction temperature of 130 ℃, reacting for 1-0.5 h, and after the addition of the ethylene oxide is finished, adding 10% of dimethylbenzene, and fully stirring and dissolving to obtain polyether;
(4) Preparing a demulsifier for high-pour-point oil: slowly dripping 4% toluene diisocyanate into a reaction kettle containing polyether for crosslinking, carrying out crosslinking reaction at 85-90 ℃, adding 35% methanol solution after 1 hour of full reaction, adding glacial acetic acid into the reaction kettle, and adjusting the pH value of a mixed solution in the reaction kettle to be neutral to obtain the demulsifier.
Compared with the prior art, the demulsifier applicable to the high pour point oil has the advantages that: the demulsifier of the invention can quickly demulsify and dehydrate crude oil, remove clear water and has ideal dehydration effect.
Detailed Description
The following are specific examples of the present invention and further describe the technical solutions of the present invention, but the present invention is not limited to these examples.
The invention relates to a demulsifier suitable for high pour point oil, which comprises 15% phenol, 10% diethylenetriamine, 15% potassium hydroxide, 40% propylene oxide, 50% ethylene oxide, 10% dimethylbenzene, 4% toluene diisocyanate, 35% methanol solution and sufficient glacial acetic acid;
the preparation method of the demulsifier comprises the following steps:
(1) Preparing an initiator: isolating the reaction kettle from air by using a nitrogen displacement method, heating 15% of phenol and 10% of diethylenetriamine to 130 ℃, adding 5% of potassium hydroxide, performing esterification reaction, and fully reacting for 1-2 h to generate an initiator;
(2) Preparing an intermediate product: replacing air in a reaction kettle containing an initiator by using a nitrogen purging mode, starting to heat up, introducing 40% of propylene oxide into the reaction kettle, adding the rest 10% of potassium hydroxide, controlling the pressure not to exceed 0.25Mpa, carrying out polymerization reaction under the catalysis of the potassium hydroxide, wherein the polymerization reaction temperature is 130 ℃, the reaction time is 1-0.5 h, and obtaining an intermediate product after the reaction is finished;
(3) Polyether reaction: isolating the reaction kettle containing the intermediate from air in a nitrogen purging mode, lowering the pressure and the temperature, introducing 50% of ethylene oxide into the reaction kettle while starting to heat, controlling the pressure not to exceed 0.25Mpa, carrying out polyether reaction at the reaction temperature of 130 ℃ for 1-0.5 h, and after the addition of the ethylene oxide is finished, adding 10% of dimethylbenzene, and fully stirring and dissolving to obtain polyether;
(4) Preparing a demulsifier for high pour point oil: slowly dripping 4% toluene diisocyanate into a reaction kettle containing polyether for crosslinking, carrying out crosslinking reaction at 85-90 ℃, adding 35% methanol solution after 1 hour of full reaction, adding glacial acetic acid into the reaction kettle, and adjusting the pH value of a mixed solution in the reaction kettle to be neutral to obtain the demulsifier.
Those not described in detail in this specification are within the skill of the art. The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (1)
1. A demulsifier suitable for high pour point oil, wherein the demulsifier comprises 15% phenol, 10% diethylenetriamine, 15% potassium hydroxide, 40% propylene oxide, 50% ethylene oxide, 10% xylene, 4% toluene diisocyanate, 35% methanol solution and sufficient glacial acetic acid;
the preparation method of the demulsifier comprises the following steps:
(1) Preparing an initiator: isolating the reaction kettle from air by using a nitrogen displacement method, heating 15% of phenol and 10% of diethylenetriamine to 130 ℃, adding 5% of potassium hydroxide, performing esterification reaction, and fully reacting for 1-2 h to generate an initiator;
(2) Preparing an intermediate product: replacing air in a reaction kettle containing an initiator by using a nitrogen purging mode, starting to heat up, introducing 40% propylene oxide into the reaction kettle, adding the rest 10% potassium hydroxide, controlling the pressure not to exceed 0.25Mpa, carrying out polymerization reaction under the catalysis of the potassium hydroxide, wherein the polymerization reaction temperature is 130 ℃, the reaction time is 1-0.5 h, and obtaining an intermediate product after the reaction is finished;
(3) Polyether reaction: isolating the reaction kettle containing the intermediate from air in a nitrogen purging mode, lowering the pressure and the temperature, introducing 50% of ethylene oxide into the reaction kettle while starting to heat, controlling the pressure to be not more than 0.25Mpa, carrying out polyether reaction at the reaction temperature of 130 ℃, reacting for 1-0.5 h, and after the addition of the ethylene oxide is finished, adding 10% of dimethylbenzene, and fully stirring and dissolving to obtain polyether;
(4) Preparing a demulsifier for high pour point oil: slowly dripping 4% toluene diisocyanate into a reaction kettle containing polyether for crosslinking, carrying out crosslinking reaction at 85-90 ℃, adding 35% methanol solution after 1h of full reaction, adding glacial acetic acid into the reaction kettle, and adjusting the pH value of a mixed solution in the reaction kettle to be neutral to obtain the demulsifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211046232.1A CN115261060A (en) | 2022-08-30 | 2022-08-30 | Demulsifier suitable for high-pour-point oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211046232.1A CN115261060A (en) | 2022-08-30 | 2022-08-30 | Demulsifier suitable for high-pour-point oil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115261060A true CN115261060A (en) | 2022-11-01 |
Family
ID=83754935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211046232.1A Pending CN115261060A (en) | 2022-08-30 | 2022-08-30 | Demulsifier suitable for high-pour-point oil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115261060A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1537924A (en) * | 2003-10-22 | 2004-10-20 | 山东大学 | Water-containing waxy crude oil low-temperature rapid demulsifier and preparation method thereof |
| US20080153931A1 (en) * | 2005-02-09 | 2008-06-26 | Basf Aktiengesellschaft | Hyperbranched Polymers for Use as Demulsifiers for Cracking Crude Oil Emulsions |
| CN102993434A (en) * | 2012-12-28 | 2013-03-27 | 山东大学 | Preparation method of crude oil rapid demulsifying agent |
| CN103980932A (en) * | 2014-05-06 | 2014-08-13 | 盘锦富隆化工有限公司 | High-pour-point crude oil demulsifier |
| CN104946298A (en) * | 2015-07-07 | 2015-09-30 | 万达集团股份有限公司 | Crude oil demulsifier and production technology thereof |
| CN114214087A (en) * | 2021-12-16 | 2022-03-22 | 克拉玛依新科澳石油天然气技术股份有限公司 | High-efficiency composite demulsifier and preparation method thereof |
-
2022
- 2022-08-30 CN CN202211046232.1A patent/CN115261060A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1537924A (en) * | 2003-10-22 | 2004-10-20 | 山东大学 | Water-containing waxy crude oil low-temperature rapid demulsifier and preparation method thereof |
| US20080153931A1 (en) * | 2005-02-09 | 2008-06-26 | Basf Aktiengesellschaft | Hyperbranched Polymers for Use as Demulsifiers for Cracking Crude Oil Emulsions |
| CN102993434A (en) * | 2012-12-28 | 2013-03-27 | 山东大学 | Preparation method of crude oil rapid demulsifying agent |
| CN103980932A (en) * | 2014-05-06 | 2014-08-13 | 盘锦富隆化工有限公司 | High-pour-point crude oil demulsifier |
| CN104946298A (en) * | 2015-07-07 | 2015-09-30 | 万达集团股份有限公司 | Crude oil demulsifier and production technology thereof |
| CN114214087A (en) * | 2021-12-16 | 2022-03-22 | 克拉玛依新科澳石油天然气技术股份有限公司 | High-efficiency composite demulsifier and preparation method thereof |
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