CN108929717B - Preparation method of aging oil treating agent - Google Patents
Preparation method of aging oil treating agent Download PDFInfo
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- CN108929717B CN108929717B CN201810627967.0A CN201810627967A CN108929717B CN 108929717 B CN108929717 B CN 108929717B CN 201810627967 A CN201810627967 A CN 201810627967A CN 108929717 B CN108929717 B CN 108929717B
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- reaction kettle
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- 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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
- C08G65/26—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds
- C08G65/2618—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds the other compounds containing nitrogen
- C08G65/2621—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds the other compounds containing nitrogen containing amine groups
- C08G65/2624—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds the other compounds containing nitrogen containing amine groups containing aliphatic amine groups
Abstract
The invention relates to a preparation method of an aging oil treating agent, which comprises the steps of firstly adding 70-180 kg of organic primary amine and 1.5kg of potassium hydroxide into a reaction kettle provided with a stirrer, vacuumizing the reaction kettle, filling nitrogen to 0.2 MPa, vacuumizing again, when the vacuum degree reaches 0.03kPa, raising the temperature in the reaction kettle to 120 ℃, introducing 400-600 kg of propylene oxide into the reaction kettle to control the reaction temperature to be 120-130 ℃, keeping the temperature in the reaction kettle constant for 2 hours after the propylene oxide introduction is finished, and then 200-300 kg of ethylene oxide is fed into the reaction kettle, the reaction temperature is controlled to be 120-130 ℃, after the feeding of the ethylene oxide is finished, the temperature in the reaction kettle is kept constant for 2 hours, and opening the reaction kettle when the temperature of the reaction kettle is reduced to 50-55 ℃, adding 600-1000 kg of ethanol into the product in the reaction kettle, adding 60-190 kg of sodium polyaspartate, uniformly stirring, and discharging to obtain the product. The aging oil treating agent prepared by the invention has excellent treatment effect on aging oil, the water content of export crude oil is lower than 0.3 percent, and the oil content of export sewage is lower than 150 mg/L.
Description
Technical Field
The invention belongs to the technical field of petroleum treatment, and relates to a preparation method of an aging oil treatment agent.
Background
The aging oil is formed under the action of medicament, mechanical impurities, colloid asphaltene, bacteria, air, circulating shearing and other factors in the production and treatment processes of crude oil. At present, the domestic aging oil is mainly from two aspects, namely 1) aging oil which is formed by storing in a sewage buffering settling tank or an inclined plate oil removal tank for a long time after the oil is collected in a suspending way from a sewage station; 2) in the dynamic demulsification process of the dehydration and sedimentation tank, substances with different specific gravities in the oil product automatically form each node layer. The aging oil has complex components and strong stability, and brings great harm and hidden danger to production. The method mainly increases the load of a pump, a pipeline and a storage tank, causes corrosion and scaling of metal surfaces, is easy to trip or directly causes production accidents such as breakdown of an electrode plate of the electric dehydrator, and shortens the service life of equipment.
The traditional aging oil treatment method adopts a centrifugal separation method and a thermochemical sedimentation method, and the effect is not good. In addition, the cleaning effect of the existing aging oil treating agent is not ideal, and the working efficiency is reduced.
Disclosure of Invention
The invention aims to provide a preparation method of an aged oil treating agent, which solves the problems that the existing aged oil treating agent is not ideal in cleaning effect and reduces the working efficiency.
The invention is realized by the following technical scheme: a preparation method of an aging oil treating agent comprises the following steps: adding 70-180 kg of organic primary amine and 1.5kg of potassium hydroxide into a reaction kettle provided with a stirrer, vacuumizing the reaction kettle, filling nitrogen to 0.2 MPa, vacuumizing again, raising the temperature in the reaction kettle to 120 ℃ when the vacuum degree reaches 0.03kPa, starting to introduce 400-600 kg of propylene oxide into the reaction kettle, controlling the reaction temperature to be 120-130 ℃, keeping the temperature in the reaction kettle for 2 hours after the propylene oxide introduction is finished, starting to introduce 200-300 kg of ethylene oxide into the reaction kettle, controlling the reaction temperature to be 120-130 ℃, keeping the temperature in the reaction kettle for 2 hours after the ethylene oxide introduction is finished, opening the reaction kettle when the temperature of the reaction kettle is reduced to 50-55 ℃, adding 600-1000 kg of ethanol into a product in the reaction kettle, adding 60-190 kg of sodium polyaspartate, uniformly stirring, and discharging to obtain the product.
Further, the organic amine is primary amine with a carbon chain of 12-18.
Further, the method comprises the following steps: adding 135kg of organic amine and 1.5kg of potassium hydroxide into a reaction kettle provided with a stirrer, vacuumizing the reaction kettle, filling nitrogen to 0.2 MPa, vacuumizing again, raising the temperature in the reaction kettle to 120 ℃ when the vacuum degree reaches 0.03kPa, starting to introduce 500kg of propylene oxide into the reaction kettle to control the reaction temperature to be 125 ℃, keeping the temperature in the reaction kettle for 2 hours after the propylene oxide is introduced, starting to introduce 250kg of ethylene oxide into the reaction kettle, controlling the reaction temperature to be 125 ℃, keeping the temperature in the reaction kettle for 2 hours after the ethylene oxide is introduced, opening the reaction kettle when the reaction kettle is cooled to 52 ℃, adding 800kg of ethanol into a product in the reaction kettle, adding 60kg of sodium polyaspartate, uniformly stirring, and discharging to obtain the product.
Further, the organic amine is a primary amine with a carbon chain 14.
Adopt above-mentioned technical scheme's positive effect: the aging oil treating agent prepared by the invention has excellent treatment effect on aging oil, the water content of the export crude oil is lower than 0.3 percent, the oil content of the export sewage is lower than 150mg/L, the effect of treating the aging oil is far higher than that of a commercially available product, and the aging oil treating agent has wide market application prospect.
Detailed Description
The following embodiments are further described, but should not be construed as limiting, the technical solutions of the present invention:
example 1
To a reaction vessel equipped with a stirrer were added 70kg of organic amine and 1.5kg of potassium hydroxide. Vacuumizing the reaction kettle, filling nitrogen to 0.2 MPa, vacuumizing again, raising the temperature in the reaction kettle to 120 ℃ when the vacuum degree reaches 0.03kPa, starting to introduce 400kg of epoxypropane into the reaction kettle, controlling the reaction temperature to be 120 ℃, keeping the temperature in the reaction kettle constant for 2 hours after the epoxypropane is introduced, starting to introduce 300kg of ethylene oxide into the reaction kettle, controlling the reaction temperature to be 120 ℃, keeping the temperature in the reaction kettle constant for 2 hours after the epoxyethane is introduced, opening the reaction kettle when the reaction kettle is cooled to 50 ℃, adding 600kg of ethanol into a product in the reaction kettle, adding 110kg of sodium polyaspartate, uniformly stirring, and discharging to obtain the aging oil treating agent.
Specifically, in this embodiment, the organic amine is a primary amine with a carbon chain 12.
Example 2
Adding 135kg of organic amine and 1.5kg of potassium hydroxide into a reaction kettle provided with a stirrer, vacuumizing the reaction kettle, filling nitrogen to 0.2 MPa, vacuumizing again, raising the temperature in the reaction kettle to 120 ℃ when the vacuum degree reaches 0.03kPa, starting to feed 500kg of propylene oxide into the reaction kettle to control the reaction temperature to be 125 ℃, keeping the temperature in the reaction kettle for 2 hours after the propylene oxide is fed, starting to feed 250kg of ethylene oxide into the reaction kettle, controlling the reaction temperature to be 125 ℃, keeping the temperature in the reaction kettle for 2 hours after the ethylene oxide is fed, opening the reaction kettle when the reaction kettle is cooled to 52 ℃, adding 800kg of ethanol into a product in the reaction kettle, adding 60kg of sodium polyaspartate, uniformly stirring, and discharging to obtain the aging oil treating agent.
Specifically, in this embodiment, the organic amine is a primary amine of carbon chain 14.
Example 3
To a reaction vessel equipped with a stirrer, 180kg of organic amine and 1.5kg of potassium hydroxide were added. Vacuumizing the reaction kettle, filling nitrogen to 0.2 MPa, vacuumizing again, raising the temperature in the reaction kettle to 120 ℃ when the vacuum degree reaches 0.03kPa, starting to introduce 600kg of epoxypropane into the reaction kettle, controlling the reaction temperature to be 130 ℃, keeping the temperature in the reaction kettle constant for 2 hours after the epoxypropane is introduced, starting to introduce 200kg of ethylene oxide into the reaction kettle, controlling the reaction temperature to be 130 ℃, keeping the temperature in the reaction kettle constant for 2 hours after the epoxyethane is introduced, opening the reaction kettle when the reaction kettle is cooled to 55 ℃, adding 1000kg of ethanol into a product in the reaction kettle, adding 190kg of sodium polyaspartate, uniformly stirring, and discharging to obtain the aging oil treating agent.
Specifically, in this embodiment, the organic amine is a primary amine with a carbon chain of 18.
Test examples
Taking aging oil from Daqing oil production first-plant, uniformly stirring, placing at the field demulsification temperature of 50 ℃ for water bath preheating for 30min, then adding 200mg/L of the aging oil treating agent and 200mg/L of a commercially available aging oil treating agent, placing for 2 h, carrying out centrifugal separation at 3000 r/min for 5 min, and then measuring the water content of crude oil and the oil content of a water phase, wherein the effects are shown in the following table 1:
table 1 comparison with commercial products
| Numbering | Crude oil Water (%) | Aqueous phase oil (mg/L) |
| Aged oil treatment agent obtained in example 1 | 0.05 | 107.36 |
| Aged oil treatment agent obtained in example 2 | 0.03 | 93.74 |
| Aged oil treatment agent obtained in example 3 | 0.05 | 95.19 |
| Commercially available aged oil treatment agent | 2.15 | 853.61 |
From the experimental results in the application examples, the aged oil treatment agent of the invention has excellent treatment effect on the aged oil, the water content of the export crude oil is less than 0.3 percent, the oil content of the export sewage is less than 150mg/L, and the treatment effect on the aged oil is far higher than that of the commercial products.
Claims (3)
1. A preparation method of an aging oil treating agent is characterized by comprising the following steps: the method comprises the following steps: adding 70-180 kg of organic primary amine and 1.5kg of potassium hydroxide into a reaction kettle provided with a stirrer, vacuumizing the reaction kettle, charging nitrogen to 0.2 MPa, vacuumizing again, raising the temperature in the reaction kettle to 120 ℃ when the vacuum degree reaches 0.03kPa, starting to introduce 400-600 kg of propylene oxide into the reaction kettle to control the reaction temperature to be 120-130 ℃, keeping the temperature in the reaction kettle for 2 hours after the propylene oxide introduction is finished, starting to introduce 200-300 kg of ethylene oxide into the reaction kettle, controlling the reaction temperature to be 120-130 ℃, keeping the temperature in the reaction kettle for 2 hours after the ethylene oxide introduction is finished, opening the reaction kettle when the reaction kettle is cooled to 50-55 ℃, adding 600-1000 kg of ethanol into a product in the reaction kettle, adding 60-190 kg of sodium polyaspartate, uniformly stirring, and discharging to obtain the product; the organic amine is primary amine with a carbon chain of 12-18.
2. The method for producing an aged oil treatment agent according to claim 1, characterized in that: the method comprises the following steps: adding 135kg of organic amine and 1.5kg of potassium hydroxide into a reaction kettle provided with a stirrer, vacuumizing the reaction kettle, filling nitrogen to 0.2 MPa, vacuumizing again, raising the temperature in the reaction kettle to 120 ℃ when the vacuum degree reaches 0.03kPa, starting to introduce 500kg of propylene oxide into the reaction kettle to control the reaction temperature to be 125 ℃, keeping the temperature in the reaction kettle for 2 hours after the propylene oxide is introduced, starting to introduce 250kg of ethylene oxide into the reaction kettle, controlling the reaction temperature to be 125 ℃, keeping the temperature in the reaction kettle for 2 hours after the ethylene oxide is introduced, opening the reaction kettle when the reaction kettle is cooled to 52 ℃, adding 800kg of ethanol into a product in the reaction kettle, adding 60kg of sodium polyaspartate, uniformly stirring, and discharging to obtain the product.
3. The method for producing an aged oil treatment agent according to claim 2, characterized in that: the organic amine is primary amine with a carbon chain of 14.
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| CN201810627967.0A CN108929717B (en) | 2018-06-19 | 2018-06-19 | Preparation method of aging oil treating agent |
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| CN108929717B true CN108929717B (en) | 2021-04-06 |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102140166A (en) * | 2010-11-24 | 2011-08-03 | 辽宁奥克化学股份有限公司 | Unsaturated polyether as well as preparation method and application thereof |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102140166A (en) * | 2010-11-24 | 2011-08-03 | 辽宁奥克化学股份有限公司 | Unsaturated polyether as well as preparation method and application thereof |
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