CN108893744A - A kind of high-temperature corrosion inhibitor - Google Patents
A kind of high-temperature corrosion inhibitor Download PDFInfo
- Publication number
- CN108893744A CN108893744A CN201810945633.8A CN201810945633A CN108893744A CN 108893744 A CN108893744 A CN 108893744A CN 201810945633 A CN201810945633 A CN 201810945633A CN 108893744 A CN108893744 A CN 108893744A
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- China
- Prior art keywords
- parts
- corrosion inhibitor
- phosphate
- temperature corrosion
- hydroxide
- Prior art date
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Classifications
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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
- C23F11/14—Nitrogen-containing compounds
- C23F11/141—Amines; Quaternary ammonium compounds
-
- 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
-
- 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
- C23F11/167—Phosphorus-containing compounds
- C23F11/1673—Esters of phosphoric or thiophosphoric acids
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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)
Abstract
The present invention relates to inhibiter technology fields, particularly relate to a kind of high-temperature corrosion inhibitor, including following raw material by weight：25 parts of 70 parts of organic amine, 35 parts of imidazolines, phosphoric acid or phosphate, 20 parts of basic catalyst, 15 parts of phosphate.Intelligent dehydration equipment of the invention, realizes dehydration, removing impurities, makes integration of equipments, modularization, intelligence.Compared with prior art, the beneficial effects of the invention are as follows：High-temperature corrosion inhibitor in the present invention has good corrosion inhibition and lasting inhibition efficiency at high temperature, and chemical stability is good, and antiseptic property is strong, and preparation process of the present invention is simple, and easy to use, dosage is few, at low cost, is conducive to produce in enormous quantities.
Description
Technical field
The present invention relates to inhibiter technology fields, particularly relate to a kind of high-temperature corrosion inhibitor.
Background technique
Corrosion is relatively common and more serious phenomenon, the corruption caused by petroleum pipeline in oil production industry
Erosion, brings huge economic loss, serious also to will cause catastrophic failure and environmental pollution, the production for seriously affecting oil field is opened
Hair.Increasingly increase recently as energy demand, the exploitation of the acid gas fields such as high sulfur-bearing also gradually increases.High sulfuric acid gas field
As most harsh severe one of corrosive environment during oil exploitation, than general oil gas field have more corrosion characteristics and
Unfavorable factor.The sour gas such as dry sulfur-bearing act on very little to corrosion of metal, however rotten to the pipeline containing water and equipment
Erosion is serious.
It lights up both at home and abroad for the corruption of peracidity oil gas field at present, main anti-corrosion means have high nickel-base alloy-steel anti-corrosion, electrification
Anti-corrosion, coating antiseptic and anti-corrosion are learned, wherein high nickel-base alloy-steel anti-corrosion, electrochemical anti-corrosive, coating antiseptic have expense high
It is expensive, operate the disadvantages of being not easy.It the use of corrosion inhibiter is a kind of economical and effective anticorrosive method in corrosion protection.It, which has, uses
The advantages that measuring small, easy to operate, environmentally friendly, favorable anti-corrosion effect.Wherein imidazoline corrosion inhibitor is a kind of nontoxic, nonirritant gas
Taste, and to the environmentally friendly corrosion inhibiter that human body and ambient enviroment are safe from harm.In addition, imidazoline corrosion inhibitor is in various acidity
Have preferable corrosion mitigating effect in medium, can by blanketing effect and improve corrosion reaction activation energy come prevent sulfur dioxide and
Corrosion of the sour gas such as carbon dioxide to metal equipment, there is good application prospect in terms of oilfield water extraction crude oil.
But as oil extraction environment is more and more severe, the formation temperature of oilfield water extraction is also higher and higher, even
Some spot temperatures are more than 200 DEG C, and imidazoline corrosion inhibitor is very weak with the suction-operated of metal under high temperature environment, are occurred
Desorption, substantially reduces corrosion mitigating effect.Furthermore imidazoline corrosion inhibitor can hydrolyze at high temperature, self stability decline, drop
Low its continues corrosion inhibition.Therefore, imidazoline corrosion inhibitor is modified to improve the inhibition efficiency under its high temperature, persistently delay
Corrosion energy and high temperature resistance be very it is necessary to.
Summary of the invention
The invention discloses a kind of high-temperature corrosion inhibitors, have good corrosion inhibition and lasting inhibition efficiency at high temperature,
Chemical stability is good, and antiseptic property is strong.
The present invention is achieved by the following technical solutions：
A kind of high-temperature corrosion inhibitor, including following raw material by weight：70 parts of organic amine, imidazolines 35
Part, phosphoric acid or 25 parts of phosphate, 20 parts of basic catalyst, 15 parts of phosphate.
Preferably, the organic amine uses the mixture of tetren mass parts and N phenyldiethanol-amine.
Preferably, the imidazolines are imidazoline sebacic acid salt, imidazoline oleate and imidazoline dimeric dibasic acid
One of salt is a variety of.
Preferably, the phosphate is mono-organic phosphate or di-phosphate ester.
Preferably, the basic catalyst be magnesium hydroxide, calcium hydroxide, iron hydroxide, zinc hydroxide, molybdenum hydroxide,
One or more of aluminium hydroxide.
Compared with prior art, the beneficial effects of the invention are as follows：High-temperature corrosion inhibitor in the present invention has very at high temperature
Good corrosion inhibition and lasting inhibition efficiency, chemical stability is good, and antiseptic property is strong, and preparation process of the present invention is simple, user
Just, dosage is few, at low cost, is conducive to produce in enormous quantities.
Specific embodiment
Here is further explanation of the present invention：
A kind of high-temperature corrosion inhibitor, including following raw material by weight：70 parts of organic amine, imidazolines 35
Part, phosphoric acid or 25 parts of phosphate, 20 parts of basic catalyst, 15 parts of phosphate.
The organic amine uses the mixture of tetren mass parts and N phenyldiethanol-amine.
The imidazolines are one in imidazoline sebacic acid salt, imidazoline oleate and imidazoline dimerization hydrochlorate
Kind is a variety of.
The phosphate is mono-organic phosphate or di-phosphate ester.
The basic catalyst is magnesium hydroxide, calcium hydroxide, iron hydroxide, zinc hydroxide, molybdenum hydroxide, aluminium hydroxide
One or more of.
High-temperature corrosion inhibitor each component is added sequentially in reaction kettle by defined parts by weight, mechanical stirring 30min is obtained
To sticky, not stratified liquid, i.e. high-temperature corrosion inhibitor.
Here is corrosion test process：
Wherein, it is carried out simultaneously by four groups of tests, the sulfuric acid solution of equivalent is added in the beaker of four groups of 1000ml, and divide
It the corrosion coupon (using carbon steel steel disc) of quality such as is not put into, is not added high-temperature corrosion inhibitor in first group of beaker, second group to the 4th
Group is separately added into the high-temperature corrosion inhibitor of 5%, 10%, 15% content, then compares experiment, by 12h, for 24 hours, 36h, respectively
It weighs to test piece.Following table 1 is weighing result table.
Table 1
It is of the invention using high molecular weight, higher boiling organic polymer as oil-soluble high-temperature corrosion inhibitor made of raw material, point
There are polar groups and non-polar group for minor structure.Polar group can be adsorbed on metal surface in higher temperature and be formed
Adsorptivity protective film, meanwhile, part corrosion inhibiter is directly acted on aphthenic acids, generates aphthenic acids rouge, the aphthenic acids rouge of macromolecule
Adsorption equilibrium can be established with metal surface, the organic acids such as epoxy acid ester and metal surface are isolated, achieve the purpose that protect material,
The aphthenic acids in distillate can also be neutralized simultaneously.Oil refining apparatus be can guarantee at 220 degree to 370 degree of temperature, acid value is higher and sulfur-bearing
In the case where, reduce corrosion of the aphthenic acids to oil refining apparatus.
This high-temperature corrosion inhibitor is used primarily in the circulating water cooling treatment pipe-line system and oil-gas transportation of the high-alkali water quality of high temperature
Equipment.Its main feature is that this product formula is low-phosphorous formula, it is not easy to form calcium phosphate scale in use process.By biochemical technology and surface
Technology is combined with traditional Stability Technique of Water Quality, effectively improves the scale inhibition and anti-corrosive properties of heat exchange equipment metal surface
Can, the industry difficulty problem of fouling is easy especially for China northern territory high rigidity, high alkalinity water quality, so that recirculated cooling water
It can be carried out under the conditions of hyperconcetration, save a large amount of water resource.This product is handled when improving cycles of concentration without acid adding,
It is run using nature pH value, that is, has saved equipment investment, simplified operation sequence, and be conducive to improve equipment life, guarantee system
The normal operation of system.This product has the function of purifying water simultaneously, solves a series of caused by deteriorating as circulating water quality
The problem of recirculated water operates normally is endangered, enables the more clean operation of circulation, also there is very big promotion to environmental protection
Effect.This product preparation process is simple, easy to use, and dosage is few, at low cost, is conducive to produce in enormous quantities.
The above only express embodiments of the present invention, the description thereof is more specific and detailed, but can not therefore and
Limitations on the scope of the patent of the present invention are interpreted as, all within the spirits and principles of the present invention, made any modification is equally replaced
It changes, improve, should all be included in the protection scope of the present invention, the scope of protection of the patent of the present invention should be with appended claims
Subject to.
Claims (5)
1. a kind of high-temperature corrosion inhibitor, it is characterised in that：Including following raw material by weight：70 parts of organic amine, imidazolines
25 parts of 35 parts of compound, phosphoric acid or phosphate, 20 parts of basic catalyst, 15 parts of phosphate.
2. a kind of high-temperature corrosion inhibitor according to claim 1, it is characterised in that：The organic amine uses tetren
The mixture of mass parts and N phenyldiethanol-amine.
3. a kind of high-temperature corrosion inhibitor according to claim 1, it is characterised in that：The imidazolines are imidazoline
One of sebacic acid salt, imidazoline oleate and imidazoline dimerization hydrochlorate are a variety of.
4. a kind of high-temperature corrosion inhibitor according to claim 1, it is characterised in that：The phosphate is mono-organic phosphate or phosphorus
Acid diesters.
5. a kind of high-temperature corrosion inhibitor according to claim 1, it is characterised in that：The basic catalyst be magnesium hydroxide,
One or more of calcium hydroxide, iron hydroxide, zinc hydroxide, molybdenum hydroxide, aluminium hydroxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810945633.8A CN108893744A (en) | 2018-08-20 | 2018-08-20 | A kind of high-temperature corrosion inhibitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810945633.8A CN108893744A (en) | 2018-08-20 | 2018-08-20 | A kind of high-temperature corrosion inhibitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108893744A true CN108893744A (en) | 2018-11-27 |
Family
ID=64354815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810945633.8A Withdrawn CN108893744A (en) | 2018-08-20 | 2018-08-20 | A kind of high-temperature corrosion inhibitor |
Country Status (1)
| Country | Link |
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| CN (1) | CN108893744A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111304659A (en) * | 2019-11-12 | 2020-06-19 | 浙江杭化科技股份有限公司 | Compound polyisobutenyl phosphite corrosion inhibitor |
-
2018
- 2018-08-20 CN CN201810945633.8A patent/CN108893744A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111304659A (en) * | 2019-11-12 | 2020-06-19 | 浙江杭化科技股份有限公司 | Compound polyisobutenyl phosphite corrosion inhibitor |
| CN111304659B (en) * | 2019-11-12 | 2022-03-29 | 浙江杭化科技股份有限公司 | Compound polyisobutenyl phosphite corrosion inhibitor |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181127 |
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| WW01 | Invention patent application withdrawn after publication |