CN106398750B - A kind of crude oil desalting agent and preparation method thereof - Google Patents
A kind of crude oil desalting agent and preparation method thereof Download PDFInfo
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- CN106398750B CN106398750B CN201610940351.XA CN201610940351A CN106398750B CN 106398750 B CN106398750 B CN 106398750B CN 201610940351 A CN201610940351 A CN 201610940351A CN 106398750 B CN106398750 B CN 106398750B
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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
- C10G32/00—Refining of hydrocarbon oils by electric or magnetic means, by irradiation, or by using microorganisms
- C10G32/02—Refining of hydrocarbon oils by electric or magnetic means, by irradiation, or by using microorganisms by electric or magnetic means
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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
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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
- C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
- C10G2300/10—Feedstock materials
- C10G2300/1033—Oil well production fluids
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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
- C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
- C10G2300/20—Characteristics of the feedstock or the products
- C10G2300/201—Impurities
- C10G2300/202—Heteroatoms content, i.e. S, N, O, P
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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
- C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
- C10G2300/80—Additives
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- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The present invention relates to a kind of crude oil desalting agent and preparation method thereof, the raw material that crude oil desalting agent includes is：12.475 14.7 parts of organic acid amide solution, 3.325 4.2 parts of polyethylene polyamine, 0.76 1.05 parts of modified lignin sulfonate, 0.0745 0.105 parts of EDETATE SODIUM salt, 0.475 0.735 parts of anionic coconut ethylenediamine tetra-acetic acid amide.Preparation method is that (1) adjusts the pH value of organic acid amide solution between 6.0 7.0, and modified lignin sulfonate is added into organic acid amide solution and EDETATE SODIUM salt is compounded, and obtains compounding product；(2) to compounding product in be added anionic coconut ethylenediamine tetra-acetic acid amide, after being mixed evenly to get.The product of the present invention can not only remove the alkaline-earth metal of calcic, magnesium plasma, moreover it is possible to remove sulphur, chlorine plasma and other metal ions；Its pH value is 67, reduces security risk.
Description
Technical field
The present invention relates to a kind of compound desalter for crude oil, and in particular to one kind for from crude oil remove metal ion,
Multifunctional crude oil desalter of organic sulfur compound etc. and preparation method thereof.
Background technology
Crude oil electric desalting is the first working procedure of crude oil processing, and the purpose is to remove salt, water and other are miscellaneous from crude oil
Matter.Demulsifier plays a crucial role during the demulsification of electro-desalting grease, it destroys the emulsifying film for surrounding water droplet, and prevents outside water droplet
The generation of portion's emulsifying film.There is specificity in current generally conventional demulsifier, when oil property changes, especially to crude oil
It is high colloid, asphalt content viscous crude, the demulsification desalting effect of conventional demulsifier pair is poor, leads to crude oil desalting after electro-desalting
Content is exceeded, to cause the fouling of distilling apparatus overhead condensation cooling system heavy corrosion, furnace tubing and heat-exchange system, with
And secondary operation device catalyst inactivation etc..Therefore it has been difficult the demulsification for solving the problems, such as crude oil with poor quality by single demulsifier.
Desalter is mostly used at present, desalination, dehydration are carried out jointly to crude oil with demulsifier, but existing desalter is more
Acid value for organic acid chelating agent, product is higher（Usual pH value is below 2）, in use can pair plus salt agent filling
System generates serious corrosion, while will produce operating personnel compared with wholesale security risk.In order to avoid the generation of the above problem,
It then needs to reduce the acid value for adding salt agent, however the desalting effect of desalter, the i.e. desalination of desalter can be reduced if acid value declines
Effect needs to rely on higher acid value；In addition to this, existing desalter is substantially decalcifying agent, i.e., only to more calcium ions and magnesium ions
Equal alkaline-earth metal are effective, it is difficult to remove other metal ions and sulphur, chlorine plasma, and need in desalination processes to be used
Dosage is larger.
Invention content
In view of this, low it is an object of the invention to overcome the deficiencies of the prior art and provide a kind of acid value and can not only take off
Except the alkaline-earth metal of calcic, magnesium plasma in crude oil, moreover it is possible to remove sulphur, chlorine plasma and metal in addition to alkaline-earth metal from
The crude oil desalting agent of son, which is used in conjunction with crude oil demulsifier, can improve the operation effect of crude oil electric desalting
Rate improves operating environment when filling desalter.
In order to achieve the above object, the present invention adopts the following technical scheme that：
A kind of crude oil desalting agent includes the raw material of following parts by weight：
12.475-14.7 parts of organic acid amide solution, 0.76-1.05 parts of modified lignin sulfonate, EDETATE SODIUM salt 0.0745-
0.105 part, 0.475-0.735 parts of anionic coconut ethylenediamine tetra-acetic acid amide；The organic acid amide solution includes following
Raw material is made：2.85-3.15 parts of citric acid, 1.9-2.1 parts of acetic acid, 4.75-5.25 parts of demineralized water, polyethylene polyamine 3.325-
4.2 part.
The product of the present invention is using acetic acid and citric acid as raw material, and using demineralized water as solvent, polycondensation is carried out with polyethylene polyamine
After reaction generates organic acid amide solution, compounded with modified lignin sulfonate, EDETATE SODIUM salt, finally with anionic coconut second two
As auxiliary synergy agent, carrying out matching obtained crude oil desalting agent according to above-mentioned parts by weight can not only remove amine tetraacethyl amide
The alkaline-earth metal of calcic, magnesium plasma in crude oil, moreover it is possible to remove sulphur, chlorine plasma and metal in addition to alkaline-earth metal from
Son, the removal efficiency total to metal ion are more than 95%, the wherein excellent chelating ability of EDETATE SODIUM salt and anionic coconut ethylenediamine
The auxiliary synergy of tetraacethyl amide acts synergistically so that the product is for other impurity（Such as sulphur, chlorine, phosphorus）It is also highly effective,
The mechanism of action is：The organic matters such as the product and sulphur, chlorine enter the water phase of electro-desalting after complexing, organic in crude oil to reduce
Sulfide and chloride ion content generate the technique effect more than 50% to the removal efficiency of organic sulfur, chlorine etc., improve making for product
Use efficiency.
Preferably：A kind of crude oil desalting agent includes the raw material of following parts by weight：
13.8 parts of organic acid amide solution, 0.9 part of modified lignin sulfonate, 0.08 part of EDETATE SODIUM salt, anionic coconut
0.6 part of ethylenediamine tetra-acetic acid amide；The organic acid amide solution includes that following raw material is made：3 parts of citric acid, removes 2 parts of acetic acid
5 parts of brine, 3.8 parts of polyethylene polyamine.
Preferably：The method for preparing the organic acid amide solution includes the following steps：
S1：The acetic acid of above-mentioned parts by weight, citric acid are uniformly mixed with demineralized water, obtain acid reaction liquid；
S2：Be added the polyethylene polyamine of above-mentioned parts by weight into the acid reaction liquid, and at a temperature of 75-85 DEG C into
Row polycondensation reaction, after reaction, it is cooling to get.
Preferably：The time of polycondensation reaction described in step S2 is 3-4h.
A method of above-mentioned crude oil desalting agent is prepared, is included the following steps：
（1）The pH value of the organic acid amide solution is adjusted between 6.0-7.0, and into the organic acid amide solution
The modified lignin sulfonate and EDETATE SODIUM salt that above-mentioned parts by weight are added are compounded, and compounding product is obtained；
（2）The anionic coconut ethylenediamine tetra-acetic acid amide of above-mentioned parts by weight, mixing are added into the compounding product
It can be obtained the crude oil desalting agent after stirring evenly.
Preferably：Step（1）It is middle that the pH value of the organic acid amide solution is adjusted using polyethylene polyamine or acetic acid
It is whole.
Beneficial effects of the present invention：
1, product of the invention can not only remove the alkaline-earth metal of calcic in crude oil, magnesium plasma, moreover it is possible to remove sulphur, chlorine etc.
Ion and the metal ion in addition to alkaline-earth metal, the removal efficiency total to metal ion is more than 95%, to organic sulfur, chlorine etc.
Removal efficiency is more than 50%, improves the service efficiency of product；
2, product pH value of the invention is 6.0-7.0, and faintly acid to neutrality to the equipment material of loading system, pipeline, is matched
Agent tank, injectant pump etc. do not corrode, and ensure that the even running and safety operation of device, there will be no security risk, to operation
The execute-in-place of personnel also more convenient safety.
3, product of the invention is used in conjunction in Crude Desalting System with demulsifier, it is ensured that is contained in crude oil after processing
Salt amount is less than 1PPM, and water content is less than 1PPM, and for the usage amount between current acid desalter 10-20PPM, this
Product usage amount substantially reduces, only 5-15PPM.
Description of the drawings
Attached drawing 1 is the preparation technology flow chart of Crude Oil desalter of the present invention.
Specific implementation mode
Below by 3 specific embodiments, technical scheme of the present invention will be described in further detail, in the present invention
In, if not refering in particular to, all parts, percentage are unit of weight, all equipment and raw material etc. be commercially available or
The industry is common.Method in following embodiments is unless otherwise instructed the conventional method of this field.
Embodiment 1
A kind of crude oil desalting agent includes the raw material of following parts by weight：
12.475-14.7 parts of organic acid amide solution, 0.76 part of modified lignin sulfonate, 0.0745 part of EDETATE SODIUM salt, the moon
0.475 part of ionic coconut ethylenediamine tetra-acetic acid amide；
Wherein organic acid amide solution is made of following methods：
S1：2.85 parts of citric acid, 1.9 parts of acetic acid are uniformly mixed with 4.75 parts of demineralized water, obtain acid reaction liquid；
S2：3.325 parts of polyethylene polyamine is added into the acid reaction liquid, and polycondensation is carried out at a temperature of 75 DEG C
React 3h, after reaction, it is cooling to get.
A method of above-mentioned crude oil desalting agent is prepared, is included the following steps：
（1）The pH value of the organic acid amide solution is adjusted between 6.0 with polyethylene polyamine or acetic acid, and is had to described
The modified lignin sulfonate and EDETATE SODIUM salt that above-mentioned parts by weight are added in machine acid amide solution are compounded, and compounding product is obtained；
（2）The anionic coconut ethylenediamine tetra-acetic acid amide of above-mentioned parts by weight, mixing are added into the compounding product
It can be obtained the crude oil desalting agent after stirring evenly.
Embodiment 2
Preferably：A kind of crude oil desalting agent includes the raw material of following parts by weight：
13.8 parts of organic acid amide solution, 0.9 part of modified lignin sulfonate, 0.08 part of EDETATE SODIUM salt, anionic coconut
0.6 part of ethylenediamine tetra-acetic acid amide；
Wherein organic acid amide solution is made of following methods：
S1：3 parts of citric acid, 2 parts of acetic acid are uniformly mixed with 5 parts of demineralized water, obtain acid reaction liquid；
S2：3.8 parts of polyethylene polyamine is added into the acid reaction liquid, and progress polycondensation is anti-at a temperature of 80 DEG C
Answer 3.5h, after reaction, it is cooling to get.
A method of above-mentioned crude oil desalting agent is prepared, is included the following steps：
（1）The pH value of the organic acid amide solution is adjusted between 6.5 with polyethylene polyamine or acetic acid, and is had to described
The modified lignin sulfonate and EDETATE SODIUM salt that above-mentioned parts by weight are added in machine acid amide solution are compounded, and compounding product is obtained；
（2）The anionic coconut ethylenediamine tetra-acetic acid amide of above-mentioned parts by weight, mixing are added into the compounding product
It can be obtained the crude oil desalting agent after stirring evenly.
Embodiment 3
A kind of crude oil desalting agent includes the raw material of following parts by weight：
14.7 parts of organic acid amide solution, 1.05 parts of modified lignin sulfonate, 0.105 part of EDETATE SODIUM salt, anionic coconut palm
0.735 part of sub- ethylenediamine tetra-acetic acid amide；
Wherein organic acid amide solution is made of following methods：
S1：3.15 parts of citric acid, 2.1 parts of acetic acid are uniformly mixed with 5.25 parts of demineralized water, obtain acid reaction liquid；
S2：4.2 parts of polyethylene polyamine is added into the acid reaction liquid, and progress polycondensation is anti-at a temperature of 85 DEG C
Answer 4h, after reaction, it is cooling to get.
A method of above-mentioned crude oil desalting agent is prepared, is included the following steps：
（1）The pH value of the organic acid amide solution is adjusted between 7.0 with polyethylene polyamine, and to the organic acid acyl
The modified lignin sulfonate and EDETATE SODIUM salt that above-mentioned parts by weight are added in amine aqueous solution are compounded, and compounding product is obtained；
（2）The anionic coconut ethylenediamine tetra-acetic acid amide of above-mentioned parts by weight, mixing are added into the compounding product
It can be obtained the crude oil desalting agent after stirring evenly.
The verification of desalting and dewatering effect：
It is that experiment is oily that this desalter, which is passed through with Shengli crude, and after technology of electric de-salting, the desalter and not of 10ppm is added
Add the data of desalter to be compared, obtain after electro-desalting, the salt content of crude oil ratio that the desalter is added is not added with desalter
Salt content of crude oil reduce by 86.5% or more, water content reduce by 65% or more, organic sulfur compound reduce by 34% or more, organochlorine reduce
75% or more, it can thus be seen that electro-desalting efficiency can be improved by a relatively large margin using the desalter.
Above-described specific implementation mode has carried out further the purpose of the present invention, technical solution and advantageous effect
It is described in detail, it should be understood that the foregoing is merely the specific implementation mode of the present invention, is not intended to limit the present invention
Protection domain, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should all include
Within protection scope of the present invention.
Claims (5)
1. a kind of crude oil desalting agent, which is characterized in that include the raw material of following parts by weight：
12.475-14.7 parts of organic acid amide solution, 0.76-1.05 parts of modified lignin sulfonate, EDETATE SODIUM salt 0.0745-
0.105 part, 0.475-0.735 parts of anionic coconut ethylenediamine tetra-acetic acid amide；
The organic acid amide solution includes that following raw material is made：2.85-3.15 parts of citric acid, 1.9-2.1 parts of acetic acid, demineralized water
4.75-5.25 parts, 3.325-4.2 parts of polyethylene polyamine；
The preparation method of the organic acid amide solution includes the following steps：
S1：The acetic acid of above-mentioned parts by weight, citric acid are uniformly mixed with demineralized water, obtain acid reaction liquid；
S2：The polyethylene polyamine of above-mentioned parts by weight is added into the acid reaction liquid, and contracts at a temperature of 75-85 DEG C
Poly- reaction, after reaction, it is cooling to get.
2. crude oil desalting agent according to claim 1, which is characterized in that include the raw material of following parts by weight：
13.8 parts of organic acid amide solution, 0.9 part of modified lignin sulfonate, 0.08 part of EDETATE SODIUM salt, anionic coconut second two
0.6 part of amine tetraacethyl amide；
The organic acid amide solution includes that following raw material is made：3 parts of citric acid, 2 parts of acetic acid, 5 parts of demineralized water, polyethylene polyamine
3.8 part.
3. crude oil desalting agent according to claim 1, which is characterized in that the time of polycondensation reaction described in step S2 is 3-
4h。
4. a kind of method preparing crude oil desalting agent as claimed in claim 1 or 2, which is characterized in that include the following steps：
(1) pH value of the organic acid amide solution is adjusted between 6.0-7.0, and is added into the organic acid amide solution
The modified lignin sulfonate and EDETATE SODIUM salt of above-mentioned parts by weight are compounded, and compounding product is obtained；
(2) the anionic coconut ethylenediamine tetra-acetic acid amide of above-mentioned parts by weight is added into the compounding product, is mixed
The crude oil desalting agent is can be obtained after uniformly.
5. according to the method described in claim 4, it is characterized in that, using polyethylene polyamine or acetic acid to described in step (1)
The pH value of organic acid amide solution is adjusted.
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| CN111011032B (en) * | 2019-12-11 | 2021-11-26 | 中国烟草总公司郑州烟草研究院 | Method for reducing content of chloride ions in chlorine-sensitive crops |
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| CN101085932A (en) * | 2006-06-05 | 2007-12-12 | 广州市精至化工有限公司 | Composite metal remover used for hydrocarbon oil and method for removing metal |
| CN101314728A (en) * | 2007-05-31 | 2008-12-03 | 中国石油化工股份有限公司 | Deferrization method for hydrocarbons raw oil |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101085932A (en) * | 2006-06-05 | 2007-12-12 | 广州市精至化工有限公司 | Composite metal remover used for hydrocarbon oil and method for removing metal |
| CN101314728A (en) * | 2007-05-31 | 2008-12-03 | 中国石油化工股份有限公司 | Deferrization method for hydrocarbons raw oil |
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