CN107142481A - A kind of method that ginkgo leaf compounding prepares corrosion inhibiter - Google Patents
A kind of method that ginkgo leaf compounding prepares corrosion inhibiter Download PDFInfo
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- CN107142481A CN107142481A CN201710478816.9A CN201710478816A CN107142481A CN 107142481 A CN107142481 A CN 107142481A CN 201710478816 A CN201710478816 A CN 201710478816A CN 107142481 A CN107142481 A CN 107142481A
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- corrosion inhibiter
- ginkgo leaf
- ginkgo
- quaternary ammonium
- ammonium salt
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
- C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
- C23F11/10—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using organic inhibitors
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- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
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- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
The invention belongs to oil field production metal pipe material technical field of anticorrosion, the method that a kind of ginkgo leaf compounding of oil field production waste system prepares corrosion inhibiter is applied particularly to, is calculated with composition quality 100%, ginkgo biloba p.e is 5~25%, polyhydroxy-alcohol is 1~10%, OP classes are 2~8%, ester based quaternary ammonium salt 1~5%, and cationic surfactant is 1~10%, diethylene triamine pentamethylene phosphonic is 3~7%, organic urea 1~10%, methenamine 1~10%, remaining is water.The method that a kind of ginkgo leaf compounding that the present invention is provided prepares corrosion inhibiter, obtained corrosion inhibiter is applied to oil field production waste system, is a kind of low toxicity, corrosion inhibiter efficiently, economic, environmentally friendly.Meanwhile, sustained release rate is high, each component synergistic action effect is good, can effectively suppress corrosion of the acid medium to steel.
Description
Technical field
The invention belongs to oil field production metal pipe material technical field of anticorrosion, the one of oil field production waste system is applied particularly to
Plant the method that ginkgo leaf compounding prepares corrosion inhibiter.
Technical background
During oil gas field production development, CO2It is present in as common associated gas in oil gas, in addition, to carry
High oil recovery factor, CO is injected into pit shaft2Yield-increasing technology also carry it into the induction system of crude oil.Therefore, oil and gas industry
In be widely present CO2Gas.CO2Dissolve in has extremely strong corrosivity to steel after water, under identical pH value, CO2Total acidity ratio
Hydrochloric acid is high, and its corrosion caused to steel is even more serious than hydrochloric acid so that the service life of pipe-line equipment is greatly shortened, and is caused
Huge economic loss.
Mainly there are 3 kinds currently for the anti-corrosion measure of oil gas field equipment and pipeline：Select corrosion resistant material, use inside coating
Or lining and filling corrosion inhibiter.Comparatively, corrosion inhibiter is due to flexibility is high, simple to operate, instant effect, being adapted to make for a long time
With the features such as, be one of the most frequently used safeguard procedures in oil gas well conduit and gathering system.But in recent years, as human society is sent out
The continuous growth of the Environmental costs of exhibition, conventional extensive style, big pollution, the production of refractory reason and development model must change.Therefore,
For petroleum industry, exploitation environmental protection, low toxicity is efficient, multi-functional corrosion inhibiter new varieties just seem particularly urgent.
Accordingly, we are conceived to the research of environment-friendly type corrosion inhibiter, to suit current oil industrial development the need for done
The trial of benefit.The present invention intend developing a kind of Plant Inhibitors and with this develop a kind of low toxicity, efficiently, it is economical, environmental protection new
Ginkgo leaf compound corrosion inhibitor.
The content of the invention
A kind of method that ginkgo leaf compounding prepares corrosion inhibiter, including following component：Calculated with composition quality 100%, silver
Apricot leaf extract is 5~25%, and polyhydroxy-alcohol be that 1~10%, OP classes are 2~8%, ester based quaternary ammonium salt 1~5%, 1227 for 1~
10%, DTPMPA are 3~7%, organic urea 1~10%, methenamine 1~10%, and remaining is water.
The ginkgo biloba p.e extraction process is：The dry Folium Ginkgo powder of certain mass is weighed, is with volume fraction
75% ethanol water immersion a few hours, volume of material mass ratio is, ethanol solution V：Ginkgo Leaf m=50ml：1.5g,
Ultrasonic wave extraction 60min, is filtered to remove leaf powder by the liquid after ultrasound, then concentrates filtrate decompression, produce ginkgo leaf
Chromocor extract.
The one kind or two kinds of mixture of described polyhydroxy-alcohol in glycerine, propane diols, propyl alcohol, methanol, ethanol,
Mixture and ratio after its optimization are methanol：Glycerine (mass ratio)=6：4.
Described OP is polyoxyethylene nonionic surfactant, one kind or many in OP-7, OP-9 and OP-15
Kind, the mixture ratio after its optimization is OP-7：OP-15 (mass ratio)=2：1.
The ester based quaternary ammonium salt can be DODMAC (dioctadecyl dimethyl ammonium chloride), HEQ (di-ester-base quaternary ammoniums
Salt), the one or more in TEAQ (triethanolamine-type ester based quaternary ammonium salt) and EAAQ (acid amides ester based quaternary ammonium salt), after it optimizes
Mixture ratio is DODMAC：TEAQ (mass ratio)=3：1.
Described 1227 are a kind of cationic surfactants, belong to non oxidizing bactericide, with wide spectrum, efficient sterilization
Algae removal ability, can efficiently control bacterium algae in water and breed, and with good scattered, osmosis, while having certain go
Oil, deodorizing capability and corrosion inhibition.
Described DTPMPA is diethylene triamine pentamethylene phosphonic, can suppress the generation of carbonate, sulfate scale.
Described organic urea is selected from one or two kinds of mixing of thiocarbamide and diethyl thiourea, the mixture ratio after its optimization
For thiocarbamide：Diethyl thiourea (mass ratio)=7:1.
The method that a kind of ginkgo leaf compounding that the present invention is provided prepares corrosion inhibiter, obtained corrosion inhibiter is produced applied to oil field
Sewerage, is a kind of low toxicity, corrosion inhibiter efficiently, economic, environmentally friendly.Meanwhile, sustained release rate is high, each component synergistic action effect
It is good, it can effectively suppress corrosion of the acid medium to steel.
Embodiment
The present invention is described in detail with reference to instantiation.
Corrosion experiment method is with reference to JB/T 7901-2001《Uniform Corrosion Method of Laboratory Immersion Test method》Hold
OK, corrosion weight loss experiment, experimental procedure are carried out using simulation oil field recovered water：Added to the oil field extracted water of deoxygenation certain dense
The corrosion inhibiter of degree, and be poured into Dynamic Corrosion cyclic corrosion tester, N80 steel discs are linked into, corrosive gas is passed through
CO21Mpa, N2Stagnation pressure is filled to 10Mpa, airtight heating sets mixing speed 60rpm to 80 DEG C, determines the corruption of steel disc after 168h
Lose speed.CR=87600 × (WBefore- WAfterwards)/(Stρ)；CR is corrosion rate, W in formulaBeforeFor experiment front hanging tablet quality, g；WAfterwardsFor reality
Test rear lacing film quality, g；S is the surface area of lacing film, cm2；T is coupon test time, hour；ρ is the density of lacing film material, g/
cm3.Sustained release rate IE%=(CR0-CR)/CR0；CR in formula0Not add corrosion rate during corrosion inhibiter, unit is mm/a, and CR is to add
Corrosion rate during corrosion inhibiter, unit is mm/a.
The features of the present invention is further illustrated below by example
Embodiment 1
Formula composition：Calculated with composition quality 100%, ginkgo biloba p.e is 15%, alcohol is that 4%, OP classes are 5%,
Ester based quaternary ammonium salt is 5%, and 1227 be that 6%, DTPMPA is 4%, organic urea 3%, methenamine 5%, and remaining is water.
Wherein its main extraction process of ginkgo biloba p.e is：V (ethanol solution)：M (Ginkgo Leaf)=50ml：
1.5g, ultrasonic wave extraction 60min, are filtered to remove leaf powder by the liquid after ultrasound, then concentrate filtrate decompression, produce silver
Apricot leaf flavone extract；
Wherein alcohol is methanol：Glycerine (mass ratio)=6：4；
Wherein OP is OP-7：OP-15 (mass ratio)=2：1；
Wherein ester based quaternary ammonium salt is DODMAC：TEAQ (mass ratio)=3：1；
Wherein organic urea elects thiocarbamide as：Diethyl thiourea (mass ratio)=7:1.
The corrosion inhibiter evaluation result of embodiment 1
| Test medium | Medium 1 | Medium 2 | Medium 3 | Medium 4 | Medium 5 |
| Corrosion rate (mm/a) before dosing | 0.297 | 0.368 | 0.340 | 0.327 | 0.374 |
| Dosing post-etching speed (mm/a) | 0.035 | 0.041 | 0.033 | 0.057 | 0.048 |
| Corrosion inhibition rate % | 88.2 | 88.8 | 85.2 | 90.0 | 87.1 |
Embodiment 2
Formula composition：Calculated with composition quality 100%, ginkgo biloba p.e is 20%, alcohol is that 6%, OP classes are 3%,
Ester based quaternary ammonium salt is 4%, and 1227 be that 3%, DTPMPA is 5%, organic urea 7%, methenamine 8%, and remaining is water.
Wherein its main extraction process of ginkgo biloba p.e is：V (ethanol solution)：M (Ginkgo Leaf)=50ml：
1.5g, ultrasonic wave extraction 60min, are filtered to remove leaf powder by the liquid after ultrasound, then concentrate filtrate decompression, produce silver
Apricot leaf flavone extract；
Wherein alcohol is methanol：Glycerine (mass ratio)=6：4；
Wherein OP is OP-7：OP-15 (mass ratio)=2：1；
Wherein ester based quaternary ammonium salt is DODMAC：TEAQ (mass ratio)=3：1；
Wherein organic urea elects thiocarbamide as：Diethyl thiourea (mass ratio)=7:1.
The corrosion inhibiter evaluation result of embodiment 2
| Test medium | Medium 1 | Medium 2 | Medium 3 | Medium 4 | Medium 5 |
| Corrosion rate (mm/a) before dosing | 0.386 | 0.367 | 0.320 | 0.337 | 0.342 |
| Dosing post-etching speed (mm/a) | 0.040 | 0.058 | 0.033 | 0.057 | 0.041 |
| Corrosion inhibition rate % | 89.6 | 84.2 | 89.7 | 83.1 | 88.0 |
Embodiment 3
Formula composition：Calculated with composition quality 100%, ginkgo biloba p.e is 23%, alcohol is that 5%, OP classes are 3%,
Ester based quaternary ammonium salt is 4%, and 1227 be that 8%, DTPMPA is 3%, organic urea 5%, methenamine 8%, and remaining is water.
Wherein its main extraction process of ginkgo biloba p.e is：V (ethanol solution)：M (Ginkgo Leaf)=50ml：
1.5g, ultrasonic wave extraction 60min, are filtered to remove leaf powder by the liquid after ultrasound, then concentrate filtrate decompression, produce silver
Apricot leaf flavone extract；
Wherein alcohol is methanol：Glycerine (mass ratio)=6：4；
Wherein OP is OP-7：OP-15 (mass ratio)=2：1；
Wherein ester based quaternary ammonium salt is DODMAC：TEAQ (mass ratio)=3：1；
Wherein organic urea elects thiocarbamide as：Diethyl thiourea (mass ratio)=7:1.
The corrosion inhibiter evaluation result of embodiment 3
| Test medium | Medium 1 | Medium 2 | Medium 3 | Medium 4 | Medium 5 |
| Corrosion rate (mm/a) before dosing | 0.302 | 0.341 | 0.350 | 0.347 | 0.319 |
| Dosing post-etching speed (mm/a) | 0.050 | 0.048 | 0.043 | 0.042 | 0.038 |
| Corrosion inhibition rate % | 83.4 | 85.9 | 87.7 | 87.8 | 87.7 |
Embodiment 4
Formula composition：Calculated with composition quality 100%, ginkgo biloba p.e is 12%, alcohol is that 2%, OP classes are 6%,
Ester based quaternary ammonium salt is 3%, and 1227 be that 8%, DTPMPA is 2%, organic urea 6%, methenamine 4%, and remaining is water.
Wherein its main extraction process of ginkgo biloba p.e is：V (ethanol solution)：M (Ginkgo Leaf)=50ml：
1.5g, ultrasonic wave extraction 60min, are filtered to remove leaf powder by the liquid after ultrasound, then concentrate filtrate decompression, produce silver
Apricot leaf flavone extract；
Wherein alcohol is methanol：Glycerine (mass ratio)=6：4；
Wherein OP is OP-7：OP-15 (mass ratio)=2：1；
Wherein ester based quaternary ammonium salt is DODMAC：TEAQ (mass ratio)=3：1；
Wherein organic urea elects thiocarbamide as：Diethyl thiourea (mass ratio)=7:1.
The corrosion inhibiter evaluation result of embodiment 4
| Test medium | Medium 1 | Medium 2 | Medium 3 | Medium 4 | Medium 5 |
| Corrosion rate (mm/a) before dosing | 0.304 | 0.327 | 0.352 | 0.341 | 0.331 |
| Dosing post-etching speed (mm/a) | 0.050 | 0.051 | 0.049 | 0.055 | 0.048 |
| Corrosion inhibition rate % | 83.4 | 84.4 | 86.1 | 83.8 | 85.5 |
The corrosion inhibiter for the ginkgo leaf compounding that the present invention is provided is can be seen that from the corrosion inhibiter evaluation result of above example,
Corrosion rate can be effectively reduced.
Claims (6)
1. a kind of method that ginkgo leaf compounding prepares corrosion inhibiter, it is characterised in that including following component：With composition quality
100% calculates, and ginkgo biloba p.e is 5~25%, and polyhydroxy-alcohol is that 1~10%, OP classes are 2~8%, and ester based quaternary ammonium salt 1~
5%, cationic surfactant is 1~10%, and diethylene triamine pentamethylene phosphonic is 3~7%, organic urea 1~10%, Wu Luo
Tropine 1~10%, remaining is water.
2. the method that a kind of ginkgo leaf compounding according to claim 1 prepares corrosion inhibiter, it is characterised in that the ginkgo leaf
The extraction process of extract is：The dry Folium Ginkgo powder of certain mass is weighed, is soaked with volume fraction for 75% ethanol water
A few hours are steeped, volume of material mass ratio is, ethanol solution V：Ginkgo Leaf m=50ml：1.5g, ultrasonic wave extraction 60min, will
Liquid after ultrasound is filtered to remove leaf powder, then concentrates filtrate decompression, produces ginko leaves flavone extract.
3. the method that a kind of ginkgo leaf compounding according to claim 1 prepares corrosion inhibiter, it is characterised in that described polyhydroxy
The one kind or two kinds of mixture of base alcohol in glycerine, propane diols, propyl alcohol, methanol, ethanol.
4. the method that a kind of ginkgo leaf compounding according to claim 1 prepares corrosion inhibiter, it is characterised in that described OP is
Polyoxyethylene nonionic surfactant, the one or more in OP-7, OP-9 and OP-15.
5. the method that a kind of ginkgo leaf compounding according to claim 1 prepares corrosion inhibiter, it is characterised in that the ester group season
Ammonium salt is dioctadecyl dimethyl ammonium chloride, di-ester-base quaternary ammonium salts, triethanolamine-type ester based quaternary ammonium salt and acid amides ester group
One or more in quaternary ammonium salt.
6. the method that a kind of ginkgo leaf compounding according to claim 1 prepares corrosion inhibiter, it is characterised in that described is organic
Urea is selected from one or two kinds of mixing of thiocarbamide and diethyl thiourea.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107099803A (en) * | 2017-06-29 | 2017-08-29 | 西南石油大学 | A kind of preparation method and purposes of the carbon steel pickling corrosion inhibitor containing Flos Rosae Rugosae extract |
| CN108611062A (en) * | 2018-07-05 | 2018-10-02 | 胡果青 | A kind of automobile cooling |
| US11479732B1 (en) | 2022-01-07 | 2022-10-25 | King Fahd University Of Petroleum And Minerals | Sweet corrosion inhibitor composition for use in the oil and gas industry |
| CN117684177A (en) * | 2024-01-25 | 2024-03-12 | 三一重型装备有限公司 | Corrosion inhibitor |
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| CN103668250A (en) * | 2013-12-31 | 2014-03-26 | 西南林业大学 | Environment-friendly efficient corrosion inhibitor as well as preparation method and application of environment-friendly efficient corrosion inhibitor |
| CN103937476A (en) * | 2014-03-20 | 2014-07-23 | 西安石油大学 | Corrosion and scale inhibitor used for mixed scaling and corrosion control of multilayer output liquids |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107099803A (en) * | 2017-06-29 | 2017-08-29 | 西南石油大学 | A kind of preparation method and purposes of the carbon steel pickling corrosion inhibitor containing Flos Rosae Rugosae extract |
| CN108611062A (en) * | 2018-07-05 | 2018-10-02 | 胡果青 | A kind of automobile cooling |
| US11479732B1 (en) | 2022-01-07 | 2022-10-25 | King Fahd University Of Petroleum And Minerals | Sweet corrosion inhibitor composition for use in the oil and gas industry |
| CN117684177A (en) * | 2024-01-25 | 2024-03-12 | 三一重型装备有限公司 | Corrosion inhibitor |
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Application publication date: 20170908 |