CN109504423A - A kind of crude oil metal remover and preparation method thereof - Google Patents
A kind of crude oil metal remover and preparation method thereof Download PDFInfo
- Publication number
- CN109504423A CN109504423A CN201910011561.4A CN201910011561A CN109504423A CN 109504423 A CN109504423 A CN 109504423A CN 201910011561 A CN201910011561 A CN 201910011561A CN 109504423 A CN109504423 A CN 109504423A
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- CN
- China
- Prior art keywords
- crude oil
- metal remover
- oil metal
- chitosan
- acid
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Classifications
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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
- C10G17/00—Refining of hydrocarbon oils in the absence of hydrogen, with acids, acid-forming compounds or acid-containing liquids, e.g. acid sludge
- C10G17/02—Refining of hydrocarbon oils in the absence of hydrogen, with acids, acid-forming compounds or acid-containing liquids, e.g. acid sludge with acids or acid-containing liquids, e.g. acid sludge
-
- 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
- C10G75/00—Inhibiting corrosion or fouling in apparatus for treatment or conversion of hydrocarbon oils, in general
- C10G75/02—Inhibiting corrosion or fouling in apparatus for treatment or conversion of hydrocarbon oils, in general by addition of corrosion inhibitors
-
- 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
- C10G2300/205—Metal content
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- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Fats And Perfumes (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
- Lubricants (AREA)
Abstract
The invention discloses a kind of crude oil metal removers and preparation method thereof, the crude oil metal remover is made of by weight percentage following components: citric acid 30-50%, 2- hydroxyethylidene diphosphonic acid guanidine-acetic acid 2-3%, hexamethylenetetramine 1-2%, sodium lignin sulfonate 3-5%, chitosan nano ball suspension 1-2%, water surplus.Crude oil metal remover of the invention not only can be reduced the corrosion to equipment, pipeline, be conducive to the longtime running of equipment, and facilitate precipitating of the chelated mineral in water phase, dispersion, make it easier to separate, to improve the removal efficiency of metal in crude oil.
Description
Technical field
The present invention relates to crude oil processing technique fields more particularly to a kind of crude oil metal remover and preparation method thereof.
Background technique
Containing Determination of multiple metal elements such as calcium, magnesium, iron in petroleum, in crude oil processing, these metal impurities can be in pipe
Fouling is deposited on the tube wall of the equipment such as formula heating furnace and heat exchanger, heat transfer efficiency is influenced, and cause underdeposit corrosion, aggravates this
The corrosion of a little equipment；In addition, these metal impurities also result in the inactivation of catalyst poisoning used in crude oil processing, to life
Production process brings adverse effect, results in significant economic losses, and it is most important to carry out demetalization processing to crude oil.Due to major part
Metal impurities exist in the form of metal organic salt, and only small part is water-soluble, and therefore, electro-desalting cannot be by the gold in crude oil
It is cleared to belong to impurity.
In order to remove metal impurities using crude electric desalter, needs to add metal remover in electro-desalting water filling, lead to
The metal organic salt crossed in metal remover and crude oil acts on, and ionizes metal ion or forms sediment, chelate, to dissolve
Or be distributed in water, it is separated from oil under the action of electric field, reaches the demetallated purpose of crude oil.
Currently, common crude oil metal remover mainly has phosphoric acid, metaphosphoric acid, hydroxycarboxylic acid, amino carboxylic acid, acetic acid, EDTA
With citric acid etc., acid effect, precipitation and chelation is utilized to realize the removing of metallic element in crude oil.These crude oil
Metal remover not only easily corrodes equipment and pipeline, but also is difficult to make the metal of chelating to form precipitating, thus be smoothly detached out,
Demetalization efficiency is lower.
Summary of the invention
The object of the invention is to remedy the disadvantages of known techniques, provides a kind of crude oil metal remover and its preparation side
Method, which not only can be reduced the corrosion to equipment, pipeline, is conducive to the longtime running of equipment, and facilitate
Precipitating of the chelated mineral in water phase, dispersion, make it easier to separate, to improve the removal efficiency of metal in crude oil.
The present invention is achieved by the following technical solutions:
A kind of crude oil metal remover, is made of by weight percentage following components: citric acid 30-50%, 2- hydroxyethylidene diphosphonic acid
Guanidine-acetic acid 2-3%, hexamethylenetetramine 1-2%, sodium lignin sulfonate 3-5%, chitosan nano ball suspension 1-2%, water surplus.
The chitosan nano ball suspension the preparation method is as follows:
(1) chitosan is sufficiently dissolved in aqueous acetic acid, it is water-soluble is made into the chitosan that mass fraction is 0.1-0.2%
Liquid；
(2) the tripolyphosphate sodium water solution that mass fraction is 0.1-0.2% is added dropwise in Xiang Suoshu chitosan aqueous solution,
It is first stirred to react 0.5-1h at room temperature, is then allowed to stand ageing 12-15h, it is outstanding to get chitosan nano ball to be filtered to remove impurity
Liquid.
The mass fraction of the aqueous acetic acid is 1-2%.
The chitosan aqueous solution and the volume ratio of tripolyphosphate sodium water solution are 1:(0.2-0.4).
The preparation method of the crude oil metal remover includes the following steps:
(1) raw material is weighed by weight, is first added to the water citric acid, 2- hydroxyethylidene diphosphonic acid guanidine-acetic acid, hexamethylenetetramine molten
Solution completely, adds sodium lignin sulfonate and stirs evenly, obtain mixed liquor；
(2) the mixed liquor high speed is added in chitosan nano ball suspension to stir evenly to get crude oil metal remover.
The invention has the advantages that
The present invention is on the basis of general crude oil metal remover, by the way that HPAA (2- hydroxyphosphonoacetic acid) He Liuci is added
Tetramine (methenamine), reduce the rate of corrosion of equipment, pipeline；Chitosan nano ball is added, using chitosan to gold
The adsorption effect of category and high-specific surface area, the high surface of nano particle promote chelated mineral to be adsorbed on chitosan nano
Precipitating is formed on ball, to be smoothly detached out from oily phase；Sodium lignin sulfonate is added, keeps the chelated mineral of precipitating equal
It is even to be scattered in water phase, as crude oil electric desalting dewatering removes rapidly.The present invention passes through the selection and cooperation of above-mentioned raw materials, so that
To crude oil metal remover not only can be reduced the corrosion to equipment, pipeline, be conducive to the longtime running of equipment, and facilitate chela
Precipitating of the alloy category in water phase, dispersion, make it easier to separate, to improve the removal efficiency of metal in crude oil.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.
Embodiment 1
A kind of crude oil metal remover, is made of by weight percentage following components: citric acid 30%, 2- hydroxyethylidene diphosphonic acid base second
Acid 2%, hexamethylenetetramine 1%, sodium lignin sulfonate 3%, chitosan nano ball suspension 1%, water surplus.
The chitosan nano ball suspension the preparation method is as follows:
(1) chitosan is sufficiently dissolved in aqueous acetic acid, is made into the chitosan aqueous solution that mass fraction is 0.1%；
(2) the tripolyphosphate sodium water solution that mass fraction is 0.1% is added dropwise in Xiang Suoshu chitosan aqueous solution, prior to
It is stirred to react 0.5h at room temperature, is then allowed to stand ageing 12h, is filtered to remove impurity to get chitosan nano ball suspension.
The mass fraction of the aqueous acetic acid is 1%.
The chitosan aqueous solution and the volume ratio of tripolyphosphate sodium water solution are 1:0.2.
The preparation method of the crude oil metal remover includes the following steps:
(1) raw material is weighed by weight, is first added to the water citric acid, 2- hydroxyethylidene diphosphonic acid guanidine-acetic acid, hexamethylenetetramine molten
Solution completely, adds sodium lignin sulfonate and stirs evenly, obtain mixed liquor；
(2) the mixed liquor high speed is added in chitosan nano ball suspension to stir evenly to get crude oil metal remover.
Use calcium content for 30ppm, iron content 20ppm, content of magnesium is the crude oil of 12ppm, in agent calcium than the condition for 3
Under, after the processing of above-mentioned crude oil metal remover, decalcification rate is 92%, and deferrization rate is 85%, demagnesium rate 78%.
Claims (5)
1. a kind of crude oil metal remover, which is characterized in that the crude oil metal remover is made of by weight percentage following components:
Citric acid 30-50%, 2- hydroxyethylidene diphosphonic acid guanidine-acetic acid 2-3%, hexamethylenetetramine 1-2%, sodium lignin sulfonate 3-5%, shell are poly-
Sugared nanosphere suspension 1-2%, water surplus.
2. a kind of crude oil metal remover according to claim 1, which is characterized in that the system of the chitosan nano ball suspension
Preparation Method is as follows:
(1) chitosan is sufficiently dissolved in aqueous acetic acid, is made into the chitosan aqueous solution that mass fraction is 0.1-0.2%；
(2) the tripolyphosphate sodium water solution that mass fraction is 0.1-0.2% is added dropwise in Xiang Suoshu chitosan aqueous solution, prior to
It is stirred to react 0.5-1h at room temperature, is then allowed to stand ageing 12-15h, is filtered to remove impurity to get chitosan nano ball suspension.
3. a kind of crude oil metal remover according to claim 2, which is characterized in that the mass fraction of the aqueous acetic acid
For 1-2%.
4. a kind of crude oil metal remover according to claim 2, which is characterized in that the chitosan aqueous solution and trimerization phosphorus
The volume ratio of acid sodium aqueous solution is 1:(0.2-0.4).
5. a kind of preparation method of crude oil metal remover according to claim 1, which comprises the steps of:
(1) raw material is weighed by weight, and first citric acid, 2- hydroxyethylidene diphosphonic acid guanidine-acetic acid, hexamethylenetetramine are added to the water and dissolved
Entirely, it adds sodium lignin sulfonate to stir evenly, obtains mixed liquor；
(2) the mixed liquor high speed is added in chitosan nano ball suspension to stir evenly to get crude oil metal remover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910011561.4A CN109504423A (en) | 2019-01-07 | 2019-01-07 | A kind of crude oil metal remover and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910011561.4A CN109504423A (en) | 2019-01-07 | 2019-01-07 | A kind of crude oil metal remover and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN109504423A true CN109504423A (en) | 2019-03-22 |
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ID=65757401
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| CN201910011561.4A Pending CN109504423A (en) | 2019-01-07 | 2019-01-07 | A kind of crude oil metal remover and preparation method thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101664111A (en) * | 2009-09-25 | 2010-03-10 | 浙江省农业科学院 | Chitosan nano particles embedded with alpha-galactosidase and preparation method thereof |
| CN105001433A (en) * | 2015-07-15 | 2015-10-28 | 南京欣通瑞亿医药科技有限公司 | Chitosan nanoparticle suspension preparation method and application thereof |
| CN107973417A (en) * | 2016-10-25 | 2018-05-01 | 中国石油化工股份有限公司 | The corrosion-proofing and antisludging method and oil production method of composite slow-corrosion scale resistor, oil field water |
| CN108569775A (en) * | 2018-06-26 | 2018-09-25 | 佛山市航祥千安科技有限公司 | A kind of water treatment composition and its application |
-
2019
- 2019-01-07 CN CN201910011561.4A patent/CN109504423A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101664111A (en) * | 2009-09-25 | 2010-03-10 | 浙江省农业科学院 | Chitosan nano particles embedded with alpha-galactosidase and preparation method thereof |
| CN105001433A (en) * | 2015-07-15 | 2015-10-28 | 南京欣通瑞亿医药科技有限公司 | Chitosan nanoparticle suspension preparation method and application thereof |
| CN107973417A (en) * | 2016-10-25 | 2018-05-01 | 中国石油化工股份有限公司 | The corrosion-proofing and antisludging method and oil production method of composite slow-corrosion scale resistor, oil field water |
| CN108569775A (en) * | 2018-06-26 | 2018-09-25 | 佛山市航祥千安科技有限公司 | A kind of water treatment composition and its application |
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Application publication date: 20190322 |
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