CN106319530A - Corrosion inhibitor for oil transportation pipeline - Google Patents
Corrosion inhibitor for oil transportation pipeline Download PDFInfo
- Publication number
- CN106319530A CN106319530A CN201610822708.4A CN201610822708A CN106319530A CN 106319530 A CN106319530 A CN 106319530A CN 201610822708 A CN201610822708 A CN 201610822708A CN 106319530 A CN106319530 A CN 106319530A
- Authority
- CN
- China
- Prior art keywords
- oil
- corrosion inhibitor
- corrosion
- well
- stabilizer
- 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.)
- Pending
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Classifications
-
- 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
- C23F11/04—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in markedly acid liquids
-
- 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
- C23F11/14—Nitrogen-containing compounds
- C23F11/149—Heterocyclic compounds containing nitrogen as hetero atom
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The invention provides a corrosion inhibitor for an oil transportation pipeline. The corrosion inhibitor comprises 15-65% of imidazoline derivatives, 20-50% of solvents and 1-20% of stabilizers by mass percentage. The corrosion inhibitor has good corrosion inhibition effect, can protect carbon steel equipment well in a wide pH range, can protect copper equipment well on the condition of a medium or low pH value, can prevent corrosion of HC1, H2S, CO2, organic acid, Sox and HCN well and is suitable for an oil well, a gas well and an oil and gas gathering and transporting line. In addition, the corrosion inhibitor does not contain heavy metal or phosphorus and is friendly to environment and safe.
Description
Technical field
The invention belongs to crude oil transmission special agent, particularly to a kind of corrosion inhibiter for oil pipeline.
Background technology
Along with the development of industrial gas oil, oil field, present stage China central and east is all in the later stage of exploitation, main force's oil
Field all enters high extraction ratio, High water cut stage, and the oil-water separation difficulty in oil field strengthens, crude oil retrogradation, change weight, aqueous, saliferous
Increasing, sulfur content, acid number raise, and add the corrosivity of crude oil, and corrosion and the protection of oil pipeline the most increasingly come into one's own.
Oil pipeline service condition is harsh, and oil product is inflammable and explosive, and corrosive pipeline ruptures and usually causes chain accident.Because of corrosion cause former
Oil leakage, stop work and production, personal injury and environmental pollution bring huge loss to relevant enterprise.To this end, anticorrosion technique
Face huge challenge.
The oil pipeline corrosion inhibiter that the present invention provides, it is possible to react generation one with iron ion or ferrum oxide in metal surface
Plant cancellated impermeability protecting film, the corrosion of ferrum can be suppressed, thus play corrosion inhibitive function.It addition, this oil pipeline is with slow
Erosion agent is a kind of oil-soluble corrosion inhibiter, it is possible to provide good protection for carbon steel equipment in the range of bigger pH, exists simultaneously
Under the conditions of medium and relatively low pH, copper equipment is had the protective effect of excellence, to HCl, H2S, CO2, organic acid, SOxCorrosion with HCN
There is good protective action, it is adaptable to oil well, gas well and Oil-Gas Gathering Transferring Pipeline.
Summary of the invention
It is an object of the invention to provide a kind of oil pipeline corrosion inhibiter；There is good corrosion mitigating effect, it is possible to relatively
There is provided good protection for carbon steel equipment in the range of big pH, under the conditions of medium and relatively low pH, copper equipment is had excellence simultaneously
Protective effect；To HCl, H2S, CO2, organic acid, SOxCorrosion with HCN has good protective action, it is adaptable to oil well, gas well with
And Oil-Gas Gathering Transferring Pipeline.Additionally, this corrosion inhibiter is without heavy metal, the most phosphorous, belong to environmental protection safety corrosion inhibiter.
The technical solution adopted in the present invention is as follows:
A kind of oil pipeline corrosion inhibiter, containing imidazolidine derivatives, solvent and stabilizer.The percentage by weight of each component is:
Imidazolidine derivatives 15～65%
Solvent 20～50%
Stabilizer 1～20%.
Described imidazolidine derivatives is oleic acid base hydroxyethyl imidazole quinoline, cocoyl hydroxyethyl imidazole quinoline, lauryl hydroxyl second
One or more in base imidazoline, oleic acid base amine ethyl imidazol(e) quinoline.
Described solvent is one or more in 150 oil, No. 24 oil, D80 oil, No. 100 oil.
Described stabilizer is one or more in C1 ~ C12 fatty acid.
The preparation method of described a kind of oil pipeline corrosion inhibiter: addition 20～the solvent of 50% in a kettle.；
Then addition 1～the stabilizer of 20%, mix and blend 10～15 minutes in reactor；Solution after above-mentioned stirring adds
15～the imidazolidine derivatives of 65%, and stir 20～60 minutes.
Embodiment one
Choose raw material by weight percentage
Oleic acid base amine ethyl imidazol(e) quinoline 50%
No. 24 oil 35%
N-nonanoic acid 15%
The preparation method of described a kind of oil pipeline corrosion inhibiter: add No. 24 oil of 35% in a kettle.；Then to instead
Answer the n-nonanoic acid adding 15% in still, mix and blend 10 minutes；Solution after above-mentioned stirring adds the oleic acid base amine ethyl of 50%
Imidazoline, and stir 60 minutes.
Embodiment two
Choose raw material by weight percentage
Oleic acid base hydroxyethyl imidazole quinoline 35%
Cocoyl hydroxyethyl imidazole quinoline 30%
150 oil 20%
D80 oil 10%
Propanoic acid 2%
Octanoic acid 3%
The preparation method of described a kind of oil pipeline corrosion inhibiter: add 150 oil and the D80 of 10% of 20% in a kettle.
Oil；Then in reactor, add propanoic acid and the octanoic acid of 3%, the mix and blend 15 minutes of 2%；In solution after above-mentioned stirring
Add oleic acid base hydroxyethyl imidazole quinoline and the cocoyl hydroxyethyl imidazole quinoline of 30% of 35%, and stir 40 minutes.
Test an inhibition coupon test
Note: lacing film area 28cm2。
The inhibition coupon test of the present invention uses western Xinjiang crude oil.In terms of corrosion coupon test data result,
The rate of corrosion of embodiment 1 and embodiment 2 carbon steel is respectively 0.02114 and 0.006549.On the corrosion inhibition to carbon steel, this
The corrosion inhibition of bright corrosion inhibiter is more excellent.
Claims (6)
1. an oil pipeline corrosion inhibiter, containing imidazolidine derivatives, solvent and stabilizer.
Oil pipeline corrosion inhibiter the most according to claim 1, the percentage by weight of each component is:
Imidazolidine derivatives 15～65%
Solvent 20～50%
Stabilizer 1～20%.
3. the imidazolidine derivatives described in is oleic acid base hydroxyethyl imidazole quinoline, cocoyl hydroxyethyl imidazole quinoline, lauryl ethoxy
One or more in imidazoline, oleic acid base amine ethyl imidazol(e) quinoline.
4. the solvent described in is one or more in 150 oil, No. 24 oil, D80 oil, No. 100 oil.
5. the stabilizer described in is one or more in C1 ~ C12 fatty acid.
6. the preparation method of a kind of oil pipeline corrosion inhibiter described in: addition 20～the solvent of 50% in a kettle.；So
Addition 1～the stabilizer of 20%, mix and blend 10～15 minutes in backward reactor；Solution after above-mentioned stirring adds 15
～the imidazolidine derivatives of 65%, and stir 20～60 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610822708.4A CN106319530A (en) | 2016-09-14 | 2016-09-14 | Corrosion inhibitor for oil transportation pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610822708.4A CN106319530A (en) | 2016-09-14 | 2016-09-14 | Corrosion inhibitor for oil transportation pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106319530A true CN106319530A (en) | 2017-01-11 |
Family
ID=57786715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610822708.4A Pending CN106319530A (en) | 2016-09-14 | 2016-09-14 | Corrosion inhibitor for oil transportation pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106319530A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109678261A (en) * | 2019-02-01 | 2019-04-26 | 北京乐文科技发展有限公司 | One kind plus hydrogen anti-incrustation corrosion inhibitor and preparation method thereof |
| CN109680280A (en) * | 2019-01-09 | 2019-04-26 | 江苏蓝电环保股份有限公司 | A kind of organic amine flue gas desulfurization corrosion inhibiter and its application |
| CN109797003A (en) * | 2019-02-01 | 2019-05-24 | 北京乐文科技发展有限公司 | A kind of oil-soluble inhibitor and preparation method thereof |
| CN111058043A (en) * | 2018-10-17 | 2020-04-24 | 中国石油化工股份有限公司 | Organic composite corrosion inhibitor and method for inhibiting carbon steel corrosion in Fischer-Tropsch synthesis reaction water by using same |
| CN117051398A (en) * | 2023-08-21 | 2023-11-14 | 河北大沧石化科技有限公司 | Environment-friendly gas-liquid two-phase corrosion inhibitor |
-
2016
- 2016-09-14 CN CN201610822708.4A patent/CN106319530A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111058043A (en) * | 2018-10-17 | 2020-04-24 | 中国石油化工股份有限公司 | Organic composite corrosion inhibitor and method for inhibiting carbon steel corrosion in Fischer-Tropsch synthesis reaction water by using same |
| CN109680280A (en) * | 2019-01-09 | 2019-04-26 | 江苏蓝电环保股份有限公司 | A kind of organic amine flue gas desulfurization corrosion inhibiter and its application |
| CN109678261A (en) * | 2019-02-01 | 2019-04-26 | 北京乐文科技发展有限公司 | One kind plus hydrogen anti-incrustation corrosion inhibitor and preparation method thereof |
| CN109797003A (en) * | 2019-02-01 | 2019-05-24 | 北京乐文科技发展有限公司 | A kind of oil-soluble inhibitor and preparation method thereof |
| CN117051398A (en) * | 2023-08-21 | 2023-11-14 | 河北大沧石化科技有限公司 | Environment-friendly gas-liquid two-phase corrosion inhibitor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170111 |
|
| WD01 | Invention patent application deemed withdrawn after publication |