CN109797003A - A kind of oil-soluble inhibitor and preparation method thereof - Google Patents
A kind of oil-soluble inhibitor and preparation method thereof Download PDFInfo
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- CN109797003A CN109797003A CN201910106326.5A CN201910106326A CN109797003A CN 109797003 A CN109797003 A CN 109797003A CN 201910106326 A CN201910106326 A CN 201910106326A CN 109797003 A CN109797003 A CN 109797003A
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Abstract
The present invention relates to a kind of oil-soluble inhibitors and preparation method thereof, the corrosion inhibiter uses organic inhibitor, dispersing agent, neutralizer, auxiliary agent and solvent as raw material and carries out weight proportion appropriate, under the synergistic effect of above-mentioned each raw material component, the oil-soluble inhibitor being finally prepared, corrosion mitigating effect is good, filming performance is good, has the function of the corrosion of anti-high hydrogen sulfide, suitable for Atmospheric vacuum, delayed coking, reforms, is hydrocracked, the Process anti-corrosion of the devices such as diesel oil hydrogenation；The dew point corrosion in condensation process can be overcome, film forming is good；The corrosion inhibiter does not make oil emulsion, meets oil and does not generate precipitating, has no adverse effects to oil quality；It is greater than 70% according to " the closed bottle test of chemicals test method 301D " 28 days biological degradation rates, meets the requirement of fast degradation；Chemical stability is high, does not decompose, goes bad in use, storage and transportational process.
Description
Technical field
The invention belongs to inhibiter technology fields, and in particular to a kind of oil-soluble inhibitor and preparation method thereof.
Background technique
With the deep mining of petroleum resources and being continuously increased for import Processing High-sulfur High-Acidity Crude Oils, crude oil in poor quality trend day
Become obvious.Inorganic sulfur present in crude oil and organic sulfur compound gradually decompose the H of generation at different conditions2S, with crude oil plus
Corrosive media (such as HCl, the NH generated during work3Deng) and artificially be added corrosive media (such as ethanol amine, furfural,
Water etc.) corrosive environment is collectively formed, serious corrosion is caused at the low temperature position (especially gas-liquid phase transition position) of device.Allusion quotation
Type have distilling apparatus often, the HCl-H of Top of Vacuum Tower2S-H2O corrosive environment；The H of catalytic cracking unit fractionation tower top2S-HCN-
NH3-H2O corrosive environment；It is hydrocracked and adds the H of hydrogen delicate instruments effluent air cooler2S-NH3-H2O corrosive environment.
General gas phase position corrosion is lighter, and the corrosion of liquid phase position is heavier, and gas-liquid phase transition position, that is, dew point position is the most serious.
This kind of corrosion not only causes biggish economic loss to oil plant, but also has seriously affected the long period safe operation of device.Cause
How this, solve by HCl-H2S-H2O、H2S-HCN-NH3-H2O、H2S-NH3-H2Etching problem caused by O etching system, it is right
Guarantee equipment safety operation, extends on-stream time and have a very important significance.
The oil-soluble inhibitor applied in the prior art is mostly imported product, at high price, and there are inhibition effects for home products
Fruit is poor, easily makes oil emulsion, the problems such as product stability is poor.
Summary of the invention
In order to solve the above problems existing in the present technology, that the present invention provides a kind of corrosion mitigating effects is good, to oil quality
It has no adverse effects, the oil-soluble inhibitor that stability is good and preparation method thereof.
The technical scheme adopted by the invention is as follows:
A kind of oil-soluble inhibitor, raw material components include:
Organic inhibitor, 10-15 parts by weight；
Dispersing agent, 10-15 parts by weight；
Neutralizer, 20-40 parts by weight；
Auxiliary agent, 5-10 parts by weight；
Solvent, 15-25 parts by weight.
The raw material components of the further preferred oil-soluble inhibitor include:
Organic inhibitor, 12.5 parts by weight；
Dispersing agent, 12.5 parts by weight；
Neutralizer, 30 parts by weight；
Auxiliary agent, 7.5 parts by weight；
Solvent, 20 parts by weight.
The organic inhibitor is cis- oleic acid base amine ethyl imidazol(e) quinoline, vaccenic acidic group amine ethyl imidazol(e) quinoline, oil base amine
The mixture of one or more of ethyl imidazol(e) quinoline.
The organic inhibitor is cis- oleic acid base amine ethyl imidazol(e) quinoline, vaccenic acidic group amine ethyl imidazol(e) quinoline and oil base amine
The mixture that ethyl imidazol(e) quinoline is formed according to molar ratio 1-2:1-2:1-2.
The dispersing agent is single polyisobutene imidodicarbonic diamide, double polyisobutene succinimides, poly isobutene succinyl
The mixture of one or more of imines.
The dispersing agent is single polyisobutene imidodicarbonic diamide, double polyisobutene succinimides and poly isobutene succinyl
The mixture that imines is formed according to molar ratio 1-2:1-2:1-2.
The neutralizer is polyethylene polyamine.
The polyethylene polyamine is the mixing of one or more of diethylenetriamine, triethylene tetramine, tetraethylenepentamine
Object.
The auxiliary agent is monoethanolamine and/or triethanolamine.
The preparation method of the oil-soluble inhibitor, includes the following steps:
Organic inhibitor, dispersing agent, neutralizer, auxiliary agent and solvent are taken respectively, are stirred under normal temperature and pressure conditions mixed
Close 20-30min to get.
The invention has the benefit that
Oil-soluble inhibitor of the present invention uses organic inhibitor, dispersing agent, neutralizer, auxiliary agent and solvent for original
Expect and carry out weight proportion appropriate, under the synergistic effect of above-mentioned each raw material component, the oil-soluble inhibition that is finally prepared
Agent, corrosion mitigating effect is good, and filming performance is good, has the function of anti-high hydrogen sulfide corrosion, for by H2S-HCN-NH3-H2O、H2S-
NH3-H2O、H2S-HCl-H2Corrosion caused by O system has good anti-corrosion effect, is suitable for Atmospheric vacuum, delayed coking, again
It is whole, be hydrocracked, the Process anti-corrosion of the devices such as diesel oil hydrogenation；The dew point corrosion in condensation process can be overcome, film forming is good；
The corrosion inhibiter does not make oil emulsion, meets oil and does not generate precipitating, has no adverse effects to oil quality；According to " chemicals test side
28 days biological degradation rates of the closed bottle test of method 301D " are greater than 70%, meet the requirement of fast degradation；Chemical stability is high, makes
It does not decomposed, gone bad in, storage and transportational process.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, technical solution of the present invention will be carried out below
Detailed description.Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art are obtained all without making creative work
Other embodiment belongs to the range that the present invention is protected.
1g is represented in following example with 1 parts by weight.
Embodiment 1
The present embodiment provides a kind of oil-soluble inhibitor, raw material components include:
Cis- oleic acid base amine ethyl imidazol(e) quinoline, 10 parts by weight；
Single polyisobutene imidodicarbonic diamide, 15 parts by weight；
Diethylenetriamine, 20 parts by weight；
Monoethanolamine, 10 parts by weight；
200# solvent naphtha, 15 parts by weight.
Further, the present embodiment provides a kind of preparation method of oil-soluble inhibitor, include the following steps:
Take respectively cis- oleic acid base amine ethyl imidazol(e) quinoline, single polyisobutene imidodicarbonic diamide, diethylenetriamine, monoethanolamine and
200# solvent naphtha, be stirred under normal temperature and pressure conditions mixing 20min to get.
Embodiment 2
The present embodiment provides a kind of oil-soluble inhibitor, raw material components include:
Vaccenic acidic group amine ethyl imidazol(e) quinoline, 15 parts by weight；
Double polyisobutene succinimides, 10 parts by weight；
Triethylene tetramine, 40 parts by weight；
Triethanolamine, 5 parts by weight；
200# solvent naphtha, 25 parts by weight.
Further, the present embodiment provides a kind of preparation method of oil-soluble inhibitor, include the following steps:
Antiform oleic acid base amine ethyl imidazol(e) quinoline, double polyisobutene succinimides, triethylene tetramine, triethanolamine are taken respectively
With 200# solvent naphtha, be stirred under normal temperature and pressure conditions mixing 30min to get.
Embodiment 3
The present embodiment provides a kind of oil-soluble inhibitor, raw material components include:
Oil base amine ethyl imidazol(e) quinoline, 12.5 parts by weight；
More polyisobutene succinimides, 12.5 parts by weight；
Tetraethylenepentamine, 30 parts by weight；
Triethanolamine, 7.5 parts by weight；
200# solvent naphtha, 20 parts by weight.
Further, the present embodiment provides a kind of preparation method of oil-soluble inhibitor, include the following steps:
Oil base amine ethyl imidazol(e) quinoline, more polyisobutene succinimides, tetraethylenepentamine, triethanolamine and 200# are taken respectively
Solvent naphtha, be stirred under normal temperature and pressure conditions mixing 25min to get.
Embodiment 4
The present embodiment provides a kind of oil-soluble inhibitor, raw material components include:
Cis- oleic acid base amine ethyl imidazol(e) quinoline, vaccenic acidic group amine ethyl imidazol(e) quinoline, oil base amine ethyl imidazol(e) quinoline are according to rubbing
You are than the mixture that 1:1:1 is formed, 12.5 parts by weight；
Single polyisobutene imidodicarbonic diamide, double polyisobutene succinimides and more polyisobutene succinimides according to mole
Than the mixture of 1:1:1 composition, 12.5 parts by weight；
The mixture that diethylenetriamine, triethylene tetramine, tetraethylenepentamine are formed according to molar ratio 1:1:1,30 parts by weight；
The mixture that monoethanolamine and triethanolamine are formed according to molar ratio 1:1,7.5 parts by weight；
200# solvent naphtha, 20 parts by weight.
Further, the present embodiment provides a kind of preparation method of oil-soluble inhibitor, include the following steps:
Take respectively cis- oleic acid base amine ethyl imidazol(e) quinoline, vaccenic acidic group amine ethyl imidazol(e) quinoline, oil base amine ethyl imidazol(e) quinoline,
Single polyisobutene imidodicarbonic diamide, double polyisobutene succinimides, more polyisobutene succinimides, diethylenetriamine, three second
Alkene tetramine, tetraethylenepentamine, monoethanolamine, triethanolamine and 200# solvent naphtha, are stirred mixing under normal temperature and pressure conditions
22min to get.
Embodiment 5
The present embodiment provides a kind of oil-soluble inhibitor, raw material components include:
Cis- oleic acid base amine ethyl imidazol(e) quinoline, vaccenic acidic group amine ethyl imidazol(e) quinoline, oil base amine ethyl imidazol(e) quinoline are according to rubbing
You are than the mixture that 2:1:2 is formed, 12.5 parts by weight；
Single polyisobutene imidodicarbonic diamide, double polyisobutene succinimides and more polyisobutene succinimides according to mole
Than the mixture of 2:1:2 composition, 12.5 parts by weight；
The mixture that diethylenetriamine, triethylene tetramine, tetraethylenepentamine are formed according to molar ratio 2:1:2,30 parts by weight；
The mixture that monoethanolamine, triethanolamine are formed according to molar ratio 2:1,7.5 parts by weight；
200# solvent naphtha, 18 parts by weight.
Further, the present embodiment provides a kind of preparation method of oil-soluble inhibitor, include the following steps:
Take respectively cis- oleic acid base amine ethyl imidazol(e) quinoline, vaccenic acidic group amine ethyl imidazol(e) quinoline, oil base amine ethyl imidazol(e) quinoline,
Single polyisobutene imidodicarbonic diamide, double polyisobutene succinimides, more polyisobutene succinimides, diethylenetriamine, three second
Alkene tetramine, tetraethylenepentamine, monoethanolamine, triethanolamine and 200# solvent naphtha, are stirred mixing under normal temperature and pressure conditions
28min to get.
Experimental example
1, technical indicator
It is A, B, C, D, E by oil-soluble inhibitor number consecutively made from 1-5 of the embodiment of the present invention, with commercially available oil-soluble
Corrosion inhibiter, naphthenic acid imidazoline make performance comparison test, and corrosion inhibition rate adding amount is 20 μ g/g, and testing result is as shown in table 1.
The performance comparison result of table 1- embodiment corrosion inhibiter and commercially available corrosion inhibitor product
As it can be seen from table 1 after the corrosion inhibiter for adding 20 μ g/g, the oil-soluble inhibitor product of the embodiment of the present invention
Corrosion inhibition be substantially better than the products such as commercially available oil-soluble inhibitor, naphthenic acid imidazoline, with anti-high hydrogen sulfide corrosion
Performance, and properties of product are stablized.
2, by oil-soluble inhibitor made from embodiment 4 in atmospheric and vacuum distillation unit, catalytic cracking unit fractionating column, delayed coking
Device fractionating column, hydrocracking unit fractionating column carry out industrial application experiment, and each device addition time is 30 days respectively.It uses
Period, other main operating parameters and feedstock property of device remain unchanged.Use overhead oil moisture before and after corrosion inhibiter of the present invention
2 are shown in Table from device draining iron concentration, water sample pH and appearance comparison.
Tower top draining iron concentration, water sample pH and appearance compare before table 2- test and after test
From table 2 it can be seen that from experimental provision tower top oil water separator draining iron concentration relatively from the point of view of, test before with
Change obviously after test, the slow release effect for reflecting oil-soluble inhibitor from side is preferable；From experimental provision tower top water-oil separating
Device drains visual inspection, and water sample clarification shows after filling oil-soluble inhibitor, do not make oil emulsion, do not generate precipitating, from side
Oil-soluble inhibitor is reflected to have no adverse effects to oil quality.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (10)
1. a kind of oil-soluble inhibitor, which is characterized in that raw material components include:
Organic inhibitor, 10-15 parts by weight；
Dispersing agent, 10-15 parts by weight；
Neutralizer, 20-40 parts by weight；
Auxiliary agent, 5-10 parts by weight；
Solvent, 15-25 parts by weight.
2. oil-soluble inhibitor according to claim 1, which is characterized in that raw material components include:
Organic inhibitor, 12.5 parts by weight；
Dispersing agent, 12.5 parts by weight；
Neutralizer, 30 parts by weight；
Auxiliary agent, 7.5 parts by weight；
Solvent, 20 parts by weight.
3. oil-soluble inhibitor according to claim 1, which is characterized in that the organic inhibitor is cis- oleic acid base amine
The mixture of one or more of ethyl imidazol(e) quinoline, vaccenic acidic group amine ethyl imidazol(e) quinoline, oil base amine ethyl imidazol(e) quinoline.
4. oil-soluble inhibitor according to claim 3, which is characterized in that the organic inhibitor is cis- oleic acid base amine
Ethyl imidazol(e) quinoline, vaccenic acidic group amine ethyl imidazol(e) quinoline and oil base amine ethyl imidazol(e) quinoline are formed according to molar ratio 1-2:1-2:1-2
Mixture.
5. oil-soluble inhibitor according to claim 1, which is characterized in that the dispersing agent is that two acyl of single polyisobutene is sub-
The mixture of one or more of amine, double polyisobutene succinimides, more polyisobutene succinimides.
6. oil-soluble inhibitor according to claim 5, which is characterized in that the dispersing agent is that two acyl of single polyisobutene is sub-
The mixing that amine, double polyisobutene succinimides and more polyisobutene succinimides are formed according to molar ratio 1-2:1-2:1-2
Object.
7. oil-soluble inhibitor according to claim 1, which is characterized in that the neutralizer is polyethylene polyamine.
8. oil-soluble inhibitor according to claim 7, which is characterized in that the polyethylene polyamine be diethylenetriamine,
The mixture of one or more of triethylene tetramine, tetraethylenepentamine.
9. oil-soluble inhibitor according to claim 1, which is characterized in that the auxiliary agent is monoethanolamine and/or three second
Hydramine.
10. the preparation method of the described in any item oil-soluble inhibitors of claim 1-9, which comprises the steps of:
Organic inhibitor, dispersing agent, neutralizer, auxiliary agent and solvent are taken respectively, are stirred mixing 20- under normal temperature and pressure conditions
30min to get.
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| CN201910106326.5A CN109797003A (en) | 2019-02-01 | 2019-02-01 | A kind of oil-soluble inhibitor and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111394128A (en) * | 2020-04-07 | 2020-07-10 | 北京乐文科技发展有限公司 | Oil slurry scale inhibitor of catalytic cracking unit and preparation method thereof |
| CN111394129A (en) * | 2020-04-07 | 2020-07-10 | 北京乐文科技发展有限公司 | Scale inhibitor for hydrogenation unit raw material and preparation method thereof |
| CN111826199A (en) * | 2020-07-21 | 2020-10-27 | 广东粤首新科技有限公司 | Hydrogenation device oil-soluble corrosion inhibitor and preparation method and application thereof |
| CN112176348A (en) * | 2020-09-27 | 2021-01-05 | 北京乐文科技发展有限公司 | Water-soluble corrosion inhibitor and preparation method thereof |
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| CN1566402A (en) * | 2003-06-27 | 2005-01-19 | 中国石油天然气股份有限公司 | Water-soluble corrosion-retarding neutralizer and its preparation process |
| CN104099615A (en) * | 2014-06-20 | 2014-10-15 | 黄河三角洲京博化工研究院有限公司 | Imidazoline type neutralization corrosion inhibitor and preparation method thereof |
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| CN1566402A (en) * | 2003-06-27 | 2005-01-19 | 中国石油天然气股份有限公司 | Water-soluble corrosion-retarding neutralizer and its preparation process |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111394128A (en) * | 2020-04-07 | 2020-07-10 | 北京乐文科技发展有限公司 | Oil slurry scale inhibitor of catalytic cracking unit and preparation method thereof |
| CN111394129A (en) * | 2020-04-07 | 2020-07-10 | 北京乐文科技发展有限公司 | Scale inhibitor for hydrogenation unit raw material and preparation method thereof |
| CN111826199A (en) * | 2020-07-21 | 2020-10-27 | 广东粤首新科技有限公司 | Hydrogenation device oil-soluble corrosion inhibitor and preparation method and application thereof |
| CN112176348A (en) * | 2020-09-27 | 2021-01-05 | 北京乐文科技发展有限公司 | Water-soluble corrosion inhibitor and preparation method thereof |
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Application publication date: 20190524 |