CN109456790A - A kind of ester type demulsifier and preparation method - Google Patents
A kind of ester type demulsifier and preparation method Download PDFInfo
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- CN109456790A CN109456790A CN201811269856.3A CN201811269856A CN109456790A CN 109456790 A CN109456790 A CN 109456790A CN 201811269856 A CN201811269856 A CN 201811269856A CN 109456790 A CN109456790 A CN 109456790A
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- ester
- demulsifier
- ester type
- agent
- type demulsifier
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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
Abstract
The invention discloses a kind of ester type demulsifier and preparation methods, include following components in percentage by weight: ester agent 15-25%, BP20401-10%, isopropanol 1-6%, SP1695-15%, ethylene glycol monobutyl ether 0-5%, ethyl alcohol 5-10%, surplus are fatty acid methyl ester.A kind of ester type demulsifier provided by the invention and live demulsifier, to comparing evaluation in wet crude under the conditions of 35 DEG C of dehydration temperaturre, as a result, ester type demulsifier dewatering speed is fast, dehydration rate is up to 96%, so that purification oil is aqueous less than 0.3%, improve to a certain extent in the prior art, demulsifier is by low temperature effect, the relatively narrow technology barrier of use scope, has widened the use scope of demulsifier.
Description
Technical field
The present invention relates to demulsifier preparation technical fields, more particularly to a kind of ester type demulsifier and preparation method.
Background technique
Demulsifier used in oil-field aqueous crude oil is mainly closed by different initiators and ethylene oxide, propylene oxide at present
At ethers demulsifier, different according to crude oil physical property, demulsifiers of one or more single compoundings of selection carry out breaking emulsion and dewatering.?
Found in use process, the demulsifier that oil field uses at present be required to 55-60 DEG C at a temperature of use, in 35 DEG C of equal low temperature items
It is difficult to penetrate into wet crude under part, leads to demulsifier bad adaptability, dehydration rate reduces.
Therefore, in view of the above technical defects, a kind of ester type demulsifier is invented, fast with dewatering speed under the conditions of 35 DEG C,
The problem of dehydration rate is high, and the effect for purifying oily water content is those skilled in the art's urgent need to resolve.
Summary of the invention
In view of this, the present invention provides a kind of ester type demulsifier and preparation method, including ester agent, BP2040, isopropanol,
SP169, ethylene glycol monobutyl ether, ethyl alcohol and fatty acid methyl ester can be rapidly dispersed into crude oil, be had to crude oil emulsion good
Demulsification performance.Meanwhile the ester type demulsifier in the present invention can carry out crude oil dehydration at low temperature, dewatering speed is fast, dehydration rate
Height makes water phase oil content low, can cope with the processing of various crude oil, emulsion, have a wide range of application.
To achieve the goals above, the present invention adopts the following technical scheme:
A kind of ester type demulsifier includes following components in percentage by weight: ester agent 15-25%, BP20401-10%, isopropyl
Alcohol 1-6%, SP1695-15%, ethylene glycol monobutyl ether 0-5%, ethyl alcohol 5-10%, surplus are fatty acid methyl ester.
Further, ester agent 15-20%, BP20405-10%, isopropanol 3-6%, SP1695-10%, ethylene glycol monobutyl ether
3-5%, ethyl alcohol 5-8%, surplus are fatty acid methyl ester.
Further, ester agent 20%, BP20408%, isopropanol 5%, SP1697%, ethylene glycol monobutyl ether 3%, ethyl alcohol 8%,
Surplus is fatty acid methyl ester.
Further, the ester agent includes the methacrylic acid and 8%-10% that weight percent is respectively 7%-10%
BP2040.The ester agent wherein prepared by methacrylic acid and BP2040, enhances demulsifier to the penetrating power of crude oil, therefore,
The ester type demulsifier of formation under the conditions of 35 DEG C, can accelerate dewatering speed, improve dehydration rate to water-in-oil emulsion.
The present invention provides a kind of ester type demulsifier, including ester agent, BP2040, isopropanol, SP169, ethylene glycol monobutyl ether,
Ethyl alcohol and fatty acid methyl ester can be rapidly dispersed into crude oil, have good demulsification performance to crude oil emulsion.
A kind of ester type demulsifier is applied in wet crude breaking emulsion and dewatering.
A kind of ester type demulsifier provided by the invention, can carry out crude oil dehydration in low temperature environment, and dewatering speed is fast, de-
Water rate is up to 96%, so that purification oil is aqueous less than 0.3%, improves to a certain extent in the prior art, demulsifier is by low
Temperature influences, and the relatively narrow technology barrier of use scope has widened the use scope of demulsifier.
A kind of preparation method of ester type demulsifier, which comprises the following steps:
(1) the ester agent is prepared
The BP2040 of the methacrylic acid of 7%-10% and 8%-10% is heated to 100 DEG C -160 DEG C in stirred tank,
8-16h is reacted, then cools to 30 DEG C；
(2) step (1) formed in ester agent, proportionally be added BP2040, isopropanol, SP169, ethylene glycol only son
The fatty acid methyl ester of ether, ethyl alcohol and surplus.
A kind of preparation method of ester type demulsifier disclosed by the invention has preparation process simple, does not discharge in production process
There is no waste water and gas, react formation product be not required to it is to be separated and purification the advantages that；It is formed by ester agent, is enhanced to crude oil
Penetrating power destroys emulsion, to improve so that water-in-oil emulsion is able to carry out rapid osmotic under 35 DEG C of lower temperatures
Dehydration rate.
Further, the methacrylic acid and the BP2040 are heated to 130 DEG C -140 in stirred tank in step (1)
DEG C, react 8-10h.
Wherein, a kind of ester type demulsifier provided by the invention when in use, has in the tank measured needed for addition at one
Demulsifier is measured, is quantitatively continuously added in pipeline according to pipeline come oil mass, is filled into heating crude oil processing system with crude oil
After dividing mixing, into settling tank deposition dehydrating.
The present invention provides a kind of ester type demulsifier and preparation methods, including ester agent, BP2040, isopropanol, SP169, second
Glycol monobutyl ether, ethyl alcohol and fatty acid methyl ester can be rapidly dispersed into crude oil, have good breaking to crude oil emulsion
Energy.Meanwhile the ester type demulsifier in the present invention has preparation process simple, does not discharge no waste water and gas in production process, instead
The product that should be formed is not required to the advantages that be separated and purification；It is formed by ester agent, enhances the penetrating power to crude oil, so that oily
Packet aqueous emulsion is able to carry out rapid osmotic under 35 DEG C of lower temperatures, emulsion is destroyed, so that dehydration rate is improved, so that water
Phase oil content is low, can cope with the processing of various crude oil, water-in-oil emulsion, have a wide range of application.
Specific embodiment
Below in conjunction with the embodiment of the present invention, technical scheme in the embodiment of the invention is clearly and completely described,
Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based in the present invention
Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all
Belong to the scope of protection of the invention.
Embodiment 1
Present embodiment discloses a kind of ester type demulsifiers, include following components in percentage by weight: ester agent 20%,
BP20408%, isopropanol 6%, SP1695%, ethylene glycol monobutyl ether 2%, ethyl alcohol 8%, fatty acid methyl ester 51%；Wherein ester agent
It is respectively 10% methacrylic acid and 9% BP2040 comprising weight percent.
Preparation method includes the following steps:
(1) ester agent is prepared
It weight percent is respectively that 10% methacrylic acid and 9% BP2040 are heated to 120 DEG C in stirred tank,
8h is reacted, 30 DEG C is then cooled to, obtains ester agent；
(2) take weight percent be 20% ester agent in be added weight percent be respectively 8% BP2040,6% it is different
Propyl alcohol, 5% SP169,2% ethylene glycol monobutyl ether, 8% ethyl alcohol and 51% fatty acid methyl ester after being mixed, obtain
A kind of ester type demulsifier.
Embodiment 2
Present embodiment discloses a kind of ester type demulsifiers, include following components in percentage by weight: ester agent 15%,
BP204010%, isopropanol 6%, SP1695%, ethylene glycol monobutyl ether 5%, ethyl alcohol 5%, fatty acid methyl ester 54%；Wherein ester agent
It is respectively 10% methacrylic acid and 9% BP2040 comprising weight percent.
Preparation method includes the following steps:
(1) ester agent is prepared
It weight percent is respectively that 10% methacrylic acid and 10% BP2040 are heated to 140 in stirred tank
DEG C, 8h is reacted, 30 DEG C is then cooled to, obtains ester agent；
(2) take weight percent be 15% ester agent in be added weight percent be respectively 10% BP2040,6% it is different
Propyl alcohol, 5% SP169,5% ethylene glycol monobutyl ether, 5% ethyl alcohol and 54% fatty acid methyl ester after being mixed, obtain
A kind of ester type demulsifier.
Embodiment 3
Present embodiment discloses a kind of ester type demulsifiers, include following components in percentage by weight: ester agent 20%,
BP20409%, isopropanol 6%, SP1696%, ethylene glycol monobutyl ether 0%, ethyl alcohol 8%, fatty acid methyl ester 51%；Wherein ester agent
It is respectively 8% methacrylic acid and 8% BP2040 comprising weight percent.
Preparation method includes the following steps:
(1) ester agent is prepared
It weight percent is respectively that 8% methacrylic acid and 8% BP2040 are heated to 130 DEG C in stirred tank,
10h is reacted, 30 DEG C is then cooled to, obtains ester agent；
(2) take weight percent be 20% ester agent in be added weight percent be respectively 9% BP2040,6% it is different
Propyl alcohol, 6% SP169,0% ethylene glycol monobutyl ether, 8% ethyl alcohol and 51% fatty acid methyl ester obtain after being mixed
A kind of ester type demulsifier.
Embodiment 4
Present embodiment discloses a kind of ester type demulsifiers, include following components in percentage by weight: ester agent 18%,
BP20407%, isopropanol 3%, SP16910%, ethylene glycol monobutyl ether 5%, ethyl alcohol 5%, fatty acid methyl ester 52%；Wherein ester agent
It is respectively 10% methacrylic acid and 8% BP2040 comprising weight percent.
Preparation method includes the following steps:
(1) ester agent is prepared
It weight percent is respectively that 10% methacrylic acid and 8% BP2040 are heated to 110 DEG C in stirred tank,
14h is reacted, 30 DEG C is then cooled to, obtains ester agent；
(2) take weight percent be 18% ester agent in be added weight percent be respectively 7% BP2040,3% it is different
Propyl alcohol, 10% SP169,5% ethylene glycol monobutyl ether, 5% ethyl alcohol and 52% fatty acid methyl ester obtain after being mixed
A kind of ester type demulsifier.
Embodiment 5
Present embodiment discloses a kind of ester type demulsifiers, include following components in percentage by weight: ester agent 19%,
BP20406%, isopropanol 6%, SP16910%, ethylene glycol monobutyl ether 3%, ethyl alcohol 6%, fatty acid methyl ester 50%；Wherein ester agent
It is respectively 10% methacrylic acid and 10% BP2040 comprising weight percent.
Preparation method includes the following steps:
(1) ester agent is prepared
It weight percent is respectively that 10% methacrylic acid and 10% BP2040 are heated to 160 in stirred tank
DEG C, 8h is reacted, 30 DEG C is then cooled to, obtains ester agent；
(2) take weight percent be 19% ester agent in be added weight percent be respectively 6% BP2040,6% it is different
Propyl alcohol, 10% SP169,3% ethylene glycol monobutyl ether, 6% ethyl alcohol and 50% fatty acid methyl ester obtain after being mixed
A kind of ester type demulsifier.
Embodiment 6
Present embodiment discloses a kind of ester type demulsifiers, include following components in percentage by weight: ester agent 25%,
BP20401%, isopropanol 1%, SP16915%, ethylene glycol monobutyl ether 3%, ethyl alcohol 10%, fatty acid methyl ester 45%；Wherein ester
Agent includes that weight percent is respectively 10% methacrylic acid and 10% BP2040.
Preparation method includes the following steps:
(1) ester agent is prepared
It weight percent is respectively that 10% methacrylic acid and 10% BP2040 are heated to 100 in stirred tank
DEG C, 16h is reacted, 30 DEG C is then cooled to, obtains ester agent；
(2) take weight percent be 25% ester agent in be added weight percent be respectively 1% BP2040,1% it is different
Propyl alcohol, 15% SP169,3% ethylene glycol monobutyl ether, 10% ethyl alcohol and 45% fatty acid methyl ester, after being mixed
To a kind of ester type demulsifier.
Comparative example 1
This comparative example discloses a kind of ester type demulsifier, includes following components in percentage by weight: ester agent 30%,
BP204015%, isopropanol 1%, SP16910%, ethylene glycol monobutyl ether 0%, ethyl alcohol 1%, fatty acid methyl ester 43%；Wherein ester
Agent includes that weight percent is respectively 10% methacrylic acid and 10% BP2040.
Preparation method includes the following steps:
(1) ester agent is prepared
It weight percent is respectively that 10% methacrylic acid and 10% BP2040 are heated to 100 in stirred tank
DEG C, 16h is reacted, 30 DEG C is then cooled to, obtains ester agent；
(2) take weight percent be 30% ester agent in be added weight percent be respectively 15% BP2040,1% it is different
Propyl alcohol, 10% SP169,0% ethylene glycol monobutyl ether, 1% ethyl alcohol and 43% fatty acid methyl ester obtain after being mixed
A kind of ester type demulsifier.
Embodiment 7
Demulsifier obtained in embodiment 1-6 and comparative example 1 is logical according to demulsifier respectively under different appraisement systems
It is detected with technical conditions SY/T5280-2000, as a result such as table 1-2.Wherein appraisement system 1 is that evaluation temperature is 35 DEG C, adds
When dose is 50PPm, dewatering time 60min；Appraisement system 2 is that evaluation temperature is 35 DEG C, when dosage is 50PPm, dehydration
Time is 120min；And as a control group with the demulsifier bought on the market.
Each demulsifier testing result in appraisement system 1 of table 1
| Group | Dehydration rate % | Water cut in purified % | Sewage with oil rate mg/L |
| Embodiment 1 | 90 | 0.6 | 25 |
| Embodiment 2 | 93 | 0.5 | 20 |
| Embodiment 3 | 94 | 0.5 | 18 |
| Embodiment 4 | 93 | 0.5 | 20 |
| Embodiment 5 | 92 | 0.5 | 20 |
| Embodiment 6 | 94 | 0.5 | 19 |
| Comparative example 1 | 87 | 1.2 | 35 |
| Control group | 85 | 2 | 45 |
Each demulsifier testing result in appraisement system 2 of table 2
| Group | Dehydration rate % | Water cut in purified % | Sewage with oil rate mg/L |
| Embodiment 1 | 96 | 0.3 | 10 |
| Embodiment 2 | 96.2 | 0.28 | 8 |
| Embodiment 3 | 96.1 | 0.3 | 9 |
| Embodiment 4 | 96.3 | 0.26 | 7 |
| Embodiment 5 | 96.2 | 0.27 | 8 |
| Embodiment 6 | 96.3 | 0.25 | 7 |
| Comparative example 1 | 92 | 0.45 | 18 |
| Control group | 90 | 0.5 | 30 |
Demulsifier in embodiment 1-6 can carry out crude oil dehydration in low temperature environment, and dewatering speed is fast, dehydration rate is up to
96%, so that purification oil is aqueous less than 0.3%, improve to a certain extent in the prior art, demulsifier is made by low temperature effect
With the relatively narrow technology barrier of range, the use scope of demulsifier has been widened.
The present invention provides a kind of ester type demulsifier and preparation methods, including ester agent, BP2040, isopropanol, SP169, second
Glycol monobutyl ether, ethyl alcohol and fatty acid methyl ester can be rapidly dispersed into crude oil, have good breaking to crude oil emulsion
Energy.Meanwhile the ester type demulsifier in the present invention can carry out crude oil dehydration under 35 DEG C of low temperature, dewatering speed is fast, dehydration rate is high,
So that water phase oil content is low, the processing of various crude oil, emulsion can be coped with, is had a wide range of application.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.For device disclosed in embodiment
For, since it is corresponded to the methods disclosed in the examples, so being described relatively simple, related place is said referring to method part
It is bright.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (7)
1. a kind of ester type demulsifier, which is characterized in that include following components in percentage by weight: ester agent 15-25%, BP20401-
10%, isopropanol 1-6%, SP1695-15%, ethylene glycol monobutyl ether 0-5%, ethyl alcohol 5-10%, surplus are fatty acid methyl ester.
2. a kind of ester type demulsifier according to claim 1, which is characterized in that include following components in percentage by weight:
Ester agent 15-20%, BP20405-10%, isopropanol 3-6%, SP1695-10%, ethylene glycol monobutyl ether 3-5%, ethyl alcohol 5-8%,
Surplus is fatty acid methyl ester.
3. a kind of ester type demulsifier according to claim 1, which is characterized in that include following components in percentage by weight:
Ester agent 20%, BP20408%, isopropanol 5%, SP1697%, ethylene glycol monobutyl ether 3%, ethyl alcohol 8%, surplus are fatty acid methyl
Ester.
4. any one ester type demulsifier according to claim 1 to 3, which is characterized in that the ester agent includes weight percent
Than being respectively the methacrylic acid of 7%-10% and the BP2040 of 8%-10%.
5. any one ester type demulsifier according to claim 1 to 3 is applied in wet crude breaking emulsion and dewatering.
6. the preparation method of any one ester type demulsifier according to claim 4, which is characterized in that including following step
It is rapid:
(1) the ester agent is prepared
The BP2040 of the methacrylic acid of 7%-10% and 8%-10% is heated to 100 DEG C -160 DEG C in stirred tank, reaction
Then 8-16h cools to 30 DEG C；
(2) step (1) formed in ester agent, proportionally be added BP2040, isopropanol, SP169, ethylene glycol monobutyl ether, second
The fatty acid methyl ester of pure and mild surplus.
7. a kind of preparation method of ester type demulsifier according to claim 6, which is characterized in that in step (1), stirring
It mixes in kettle and the methacrylic acid and the BP2040 is heated to 130 DEG C -140 DEG C, react 8-10h.
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| CN201811269856.3A CN109456790B (en) | 2018-10-29 | 2018-10-29 | Ester type demulsifier and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811269856.3A CN109456790B (en) | 2018-10-29 | 2018-10-29 | Ester type demulsifier and preparation method thereof |
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| CN109456790A true CN109456790A (en) | 2019-03-12 |
| CN109456790B CN109456790B (en) | 2021-11-05 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1807557A (en) * | 2006-01-09 | 2006-07-26 | 长江(扬中)电脱盐设备有限公司 | Composite oil-soluble demulsifier product and its production method |
| CN101544903A (en) * | 2009-03-27 | 2009-09-30 | 中国石油大学(华东) | Crude oil demulsifier and preparation method thereof |
| CN106701156A (en) * | 2017-01-06 | 2017-05-24 | 中国海洋石油总公司 | Method for efficiently treating oil field complex oil-water emulsion |
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2018
- 2018-10-29 CN CN201811269856.3A patent/CN109456790B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1807557A (en) * | 2006-01-09 | 2006-07-26 | 长江(扬中)电脱盐设备有限公司 | Composite oil-soluble demulsifier product and its production method |
| CN101544903A (en) * | 2009-03-27 | 2009-09-30 | 中国石油大学(华东) | Crude oil demulsifier and preparation method thereof |
| CN106701156A (en) * | 2017-01-06 | 2017-05-24 | 中国海洋石油总公司 | Method for efficiently treating oil field complex oil-water emulsion |
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