CN106348362A - High-temperature high-salt resistant thick oil thermal recovery sewage degreasing agent and preparation method thereof - Google Patents
High-temperature high-salt resistant thick oil thermal recovery sewage degreasing agent and preparation method thereof Download PDFInfo
- Publication number
- CN106348362A CN106348362A CN201610949426.0A CN201610949426A CN106348362A CN 106348362 A CN106348362 A CN 106348362A CN 201610949426 A CN201610949426 A CN 201610949426A CN 106348362 A CN106348362 A CN 106348362A
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- degreaser
- temperature
- degreasing
- sewage
- preparation
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Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/285—Treatment of water, waste water, or sewage by sorption using synthetic organic sorbents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/10—Nature of the water, waste water, sewage or sludge to be treated from quarries or from mining activities
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/04—Surfactants, used as part of a formulation or alone
Abstract
The invention belongs to the technical filed of oil field sewage treatment, and in particular relates to a high-temperature high-salt resistant thick oil thermal recovery sewage degreasing agent which is compounded from a dication surfactant, activated silica, sodium carboxymethylcellulose and water, wherein the dication surfactant is a symmetric molecule with long-carbon-chain alkyl and biquaternary ammonium salt cation polar groups. The degreasing agent provided by the invention has the characteristics of simple preparation process, low cost and good temperature and salt resistance, the mineralization resistance degree of the degreasing agent can be up to 250000mg/L, the temperature resistance of the degreasing agent is up to 250 DEG C, and a good degreasing effect can be achieved; the degreasing rate of thick oil thermal recovery sewage can be greater than 96%, and compared with that of a conventional agent, the degreasing rate of the degreasing agent is increased by more than 40%. Therefore, the degreasing agent can be widely applied to degreasing processes of thick oil thermal recovery sewage.
Description
Technical field
The present invention relates to a kind of degreaser for disposing polluted water in oil is and in particular to a kind of viscous crude of resisting high temperature, high salt is warm
Adopt sewage water degreaser and preparation method thereof.
Background technology
The viscosity of viscous crude is big, and the sewage disposal that exploitation produces always restricts one of important step of its development.Crude oil warp
After the heat chemistry settling process a period of time crossing dehydration, silt and other mechanical admixture together enter sewerage, make dirt
TSM in water reaches 20000mg/l.Cause larger difficulty to sewage disposal.Meanwhile, in order that super-viscous oil energy
Given rise to ground, oil recovery process be with the addition of some surfactants, the material such as such as sulfonate is so that Produced Liquid is needed
Breaking emulsion and dewatering, causes substantial amounts of chemical agent to remain in sewage, and not only oil content is high to cause sewage, and the stablizing of emulsion
Property strong so that sewage oil removing and purified treatment are increasingly complex.
Conventional handling process (natural subsidence-coagulant precipitation-filtration) is difficult to make heavy crude heat extraction sewage obtain effectively at present
Process.Another method removing oil-bearing wastewater Crude Oil is chemical method, that is, adopt oil removing agent method.Degreaser substantially divides
For two categories below, the element of the first species is various, and deoiling effect is good, but it is poor, relatively costly to there is complicated process of preparation, anti-salt property
Shortcoming；Another kind of degreaser composition is single, and preparation method and technique are relatively simple, and the requirement to water quality is relatively low, but exists and remove
The shortcoming of oily effect difference.Patent currently for condensed oil sewage process aspect is less, and the condensed oil sewage that can be biodegradable
Degreaser is even more few.
Several new seasons are proposed in " synthesis of quaternary ammonium salt decomposable asymmetric choice net surfactant and the performance study " of Liang Huihui
Ammonium type surfactant, and the synthesis condition and surface property of the quaternary ammonium salt surface active agent developed is ground
Study carefully.Shown according to laboratory test research, the biodegradable surfactant of the dication containing acetal functionality is due to having
Annular rigid structure, has heat resistance, and bis-quaternary ammonium salt cationic can occur chemistry with the polar substancess of oil droplets simultaneously
Adsorption and form bridging, coalescent deoiling, therefore this dication surfactant can be used for the sewage disposal of viscous crude.
Content of the invention
The present invention be directed to the deficiencies in the prior art and provide a kind of resisting high temperature, high salt heavy crude heat extraction sewage degreaser and its
Preparation method, the degreaser of the present invention has that preparation process is simple, low cost, temperature-resistant anti-salt performance are good, and resistance to salinity reaches
250000mg/l, heatproof reaches 250 DEG C, and the good feature of deoiling effect, and the oil removal rate of heavy crude heat extraction sewage reaches more than 96%, relatively
Existing medicament improves more than 40%.
The invention discloses a kind of heavy crude heat extraction sewage degreaser of resisting high temperature, high salt, this degreaser is by dication surface
Activating agent, activated silica, sodium carboxymethyl cellulose and water compound and form.Described dication surfactant is that one kind has
Long carbon chain alkyl, the symmetrical molecule of bis-quaternary ammonium salt cationic polar group, its molecular formula is as follows:
The component of each composition of described degreaser is as follows:
Preferably, the component of each composition of described degreaser is as follows:
Another object of the present invention discloses a kind of preparation method of the heavy crude heat extraction sewage degreaser of resisting high temperature, high salt, its
Specifically comprise the following steps that
(1) in 30～50 DEG C of thermostat water baths, the water of 10-30 part is placed in beaker, stir speed (S.S.) 300～
Under 400rpm, it is slowly added to 1 part of dication surfactant, after being added completely into, continue stirring 20～30min, obtain mixing
Solution；
(2) temperature of above-mentioned mixed solution is adjusted to 50～55 DEG C, after temperature constant, stir speed (S.S.) be 200～
Under 250rpm, it is slowly added to 0.01～0.75 part of sodium carboxymethyl cellulose, continue stirring 20～30min, obtain clear solution；
(3) by the temperature adjustment of above-mentioned clear solution to 35～40 DEG C, stir speed (S.S.) is adjusted to 400～600rpm, constant temperature 10
After～15min, it is slowly added to 0.1～1.5 part of activated silica, constant temperature stirs 20～25min, is subsequently cooled to 20～25 DEG C,
Continue stirring 10～30min, Temperature fall finally gives the degreaser of the present invention.
A kind of degreaser for heavy crude heat extraction sewage process, it uses technical process as follows:
According to the oil-containing situation in oil-field thick-oil thermal recovery sewage, add the degreaser of the present invention in sewage, realize profit
Separate, after reclaiming petroleum substance, process further for subsequent technique.The concrete addition of degreaser is as follows:
(1), during oil-containing β >=500mg/l, adding degreaser to make the mass concentration of degreaser in sewage is 60～80mg/l；
During (2) 500 ＞ oil-containing β >=300mg/l, add degreaser make degreaser in sewage mass concentration be 30～
50mg/l；
During (3) 300 ＞ oil-containing β >=100mg/l, add degreaser make degreaser in sewage mass concentration be 20～
30mg/l；
(4), during oil-containing β ＜ 100mg/l, adding degreaser to make the mass concentration of degreaser in sewage is 0.1～10mg/l.
The heavy crude heat extraction sewage degreaser that the present invention provides, the dication surfactant in degreaser, contained by it
Hydrophobic group longer it is easy to enter micelle in, more can reduce its surface gibbs can, thus leading to critical micelle concentration less,
I.e. consumption is less；Hydrophobic group be lipophilic group can rapid adsorption to greasy surfaces, the insertion of subsequent dication quaternary ammonium salt group
To inside greasy dirt, form cotton-shaped granule, thus reaching the purpose of oil removing；Sodium carboxymethyl cellulose is water soluble polymer polymerization
Thing, it can make the neutralization of bridge formation or electric charge between particle by adsorbing the solid in water and semi-solid ion, thus promoting double sun
The flocculation of ionic surface active agent, moreover, sodium carboxymethyl cellulose also has intermolecular " winding " package action,
Dewatering might as well；Activated silica belongs to inorganic compound, and this material has the characteristics that heat resistance is good, and, temperature is higher,
Its activity is higher, has strong adaptability, the good feature of performance.
The present invention compared with prior art has the advantage that and beneficial effect:
(1) extensively, synthesis technique is simple for the raw material sources of the degreaser of the present invention；
(2) the degreaser temperature-resistant anti-salt performance of the present invention is good, and resistance to salinity reaches 250000mg/l, 250 DEG C of heatproof, overcomes
The shortcoming of degreaser temperature-resistant anti-salt performance difference in the past；
(3) degreaser of the present invention has the characteristics that oil removal efficiency is high, and the oil removal rate of heavy crude heat extraction sewage reaches more than 96%,
More existing medicament improves more than 40%, meets the requirement of the oil removing pretreatment of heavy crude heat extraction sewage.
Specific embodiment
With reference to specific embodiment, and with reference to data, the present invention is described in further detail.It should be understood that these embodiments
The present invention solely for the purpose of illustration, rather than limit the scope of the present invention by any way.
Embodiment 1: degreaser e1And preparation method thereof
(1) degreaser e1Composition and its component as follows:
According to existing document, the preparation method of described dication surfactant is as follows:
(2) degreaser e1Preparation method as follows:
1. in 40 DEG C of thermostat water baths, 10 parts of water is placed in beaker, under stir speed (S.S.) 350rpm, is slowly added to
1 part of dication surfactant, after being added completely into, continues stirring 30min, obtains mixed solution；
2. the temperature of above-mentioned mixed solution is adjusted to 50 DEG C, after temperature constant, under stir speed (S.S.) is for 200rpm, slowly
Add 0.01 part of sodium carboxymethyl cellulose, continue stirring 25min, obtain clear solution；
3. by the temperature adjustment of above-mentioned clear solution to 35 DEG C, stir speed (S.S.) is adjusted to 400rpm, after constant temperature 10min, slowly
Add 0.1 part of activated silica, constant temperature stirs 25min, is subsequently cooled to 20 DEG C, continue stirring 20min, Temperature fall is final to be obtained
Degreaser e to the present invention1.
Embodiment 2: degreaser e2And preparation method thereof
(1) degreaser e2Composition and its component as follows:
According to existing document, the preparation method of described dication surfactant is as follows:
(2) degreaser e2Preparation method as follows:
1. in 30 DEG C of thermostat water baths, 15 parts of water is placed in beaker, under stir speed (S.S.) 300rpm, is slowly added to
1 part of dication surfactant, after being added completely into, continues stirring 20min, obtains mixed solution；
2. the temperature of above-mentioned mixed solution is adjusted to 52 DEG C, after temperature constant, under stir speed (S.S.) is for 220rpm, slowly
Add 0.25 part of sodium carboxymethyl cellulose, continue stirring 20min, obtain clear solution；
3. by the temperature adjustment of above-mentioned clear solution to 38 DEG C, stir speed (S.S.) is adjusted to 500rpm, after constant temperature 12min, slowly
Add 0.8 part of activated silica, constant temperature stirs 20min, is subsequently cooled to 23 DEG C, continue stirring 10min, Temperature fall is final to be obtained
Degreaser e to the present invention2.
Embodiment 3: degreaser e3And preparation method thereof
(1) degreaser e3Composition and its component as follows:
According to existing document, the preparation method of described dication surfactant is as follows:
(2) degreaser e3Preparation method as follows:
1. in 50 DEG C of thermostat water baths, 30 parts of water is placed in beaker, under stir speed (S.S.) 400rpm, is slowly added to
1 part of dication surfactant, after being added completely into, continues stirring 25min, obtains mixed solution；
2. the temperature of above-mentioned mixed solution is adjusted to 55 DEG C, after temperature constant, under stir speed (S.S.) is for 250rpm, slowly
Add 0.75 part of sodium carboxymethyl cellulose, continue stirring 30min, obtain clear solution；
3. by the temperature adjustment of above-mentioned clear solution to 40 DEG C, stir speed (S.S.) is adjusted to 600rpm, after constant temperature 15min, slowly
Add 1.5 parts of activated silica, constant temperature stirs 22min, is subsequently cooled to 25 DEG C, continue stirring 30min, Temperature fall is final to be obtained
Degreaser e to the present invention3.
Embodiment 4 degreaser e1Scene application
Multi-purpose station f3Water be heavy crude heat extraction sewage, test process scale be 50m3/ d, water oil content 625mg/l, dirty
Water salinity 165680mg/l, 85 DEG C of sewage temperature, using the degreaser e of the present invention1To multi-purpose station f3Sewage carry out at oil removing
Reason, degreaser e1Dosage be 3.25kg/d, the concentration adding degreaser in sewage after degreaser is 65mg/l, contains after process
Oil mass is reduced to 17.5mg/l, and oil content reduces by 97.2%, reaches technological requirement.
Embodiment 5 degreaser e2Scene application
Multi-purpose station f5Water be heavy crude heat extraction sewage, test process scale be 80m3/ d, water oil content 378mg/l, dirty
Water salinity 163252mg/l, 80 DEG C of sewage temperature, using the degreaser e of the present invention2To multi-purpose station f5Sewage carry out at oil removing
Reason, degreaser e2Dosage be 2.8kg/d, the concentration adding degreaser in sewage after degreaser is 35.0mg/l, after process
Oil content is reduced to 6.8mg/l, and oil content reduces by 98.2%, reaches technological requirement.
Embodiment 6 degreaser e3Scene application
Multi-purpose station f8Water be heavy crude heat extraction sewage, test process scale be 60m3/ d, water oil content 467mg/l, dirty
Water salinity 150526mg/l, 80 DEG C of sewage temperature, using the degreaser e of the present invention3To multi-purpose station f8Sewage carry out at oil removing
Reason, degreaser e3Dosage be 2.7kg/d, the concentration adding degreaser in sewage after degreaser is 45mg/l, contains after process
Oil mass is reduced to 11.7mg/l, and oil content reduces by 97.5%, reaches technological requirement.
Claims (4)
1. a kind of heavy crude heat extraction sewage degreaser of resisting high temperature, high salt is it is characterised in that this degreaser is lived by dication surface
Property agent, activated silica, sodium carboxymethyl cellulose and water compound and form；Described dication surfactant is that one kind has length
Alkyl chain length, the symmetrical molecule of bis-quaternary ammonium salt cationic polar group, its molecular formula is as follows:
2. the heavy crude heat extraction sewage degreaser of resisting high temperature, high salt according to claim 1 is it is characterised in that described oil removing
The component of each composition of agent is as follows:
3. the heavy crude heat extraction sewage degreaser of resisting high temperature, high salt according to claim 1 and 2 is it is characterised in that described
The component of each composition of degreaser is as follows:
4. a kind of preparation method of the heavy crude heat extraction sewage degreaser of resisting high temperature, high salt is it is characterised in that the tool of this preparation method
Body step is as follows:
(1) in 30～50 DEG C of thermostat water baths, the water of 10-30 part is placed in beaker, in stir speed (S.S.) 300～400rpm
Under, it is slowly added to 1 part of dication surfactant, after being added completely into, continue stirring 20～30min, obtain mixed solution；
(2) temperature of above-mentioned mixed solution is adjusted to 50～55 DEG C, after temperature constant, is 200～250rpm in stir speed (S.S.)
Under, it is slowly added to 0.01～0.75 part of sodium carboxymethyl cellulose, continue stirring 20～30min, obtain clear solution；
(3) by the temperature adjustment of above-mentioned clear solution to 35～40 DEG C, stir speed (S.S.) is adjusted to 400～600rpm, and constant temperature 10～
After 15min, it is slowly added to 0.1～1.5 part of activated silica, constant temperature stirs 20～25min, is subsequently cooled to 20～25 DEG C, continues
Continuous stirring 10～30min, Temperature fall finally gives the degreaser of the present invention.
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| CN201610949426.0A CN106348362B (en) | 2016-11-02 | 2016-11-02 | A kind of heavy crude heat extraction sewage degreaser of resisting high temperature, high salt and preparation method thereof |
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| CN201610949426.0A CN106348362B (en) | 2016-11-02 | 2016-11-02 | A kind of heavy crude heat extraction sewage degreaser of resisting high temperature, high salt and preparation method thereof |
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| CN106348362B CN106348362B (en) | 2019-06-21 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106943771A (en) * | 2017-03-07 | 2017-07-14 | 青岛华蓝普环保工程有限公司 | A kind of degreaser of temperature-resistant high-efficient oil-polluted water and preparation method thereof |
| CN106966910A (en) * | 2017-03-23 | 2017-07-21 | 青岛华蓝普环保工程有限公司 | A kind of degreaser handled for oil-contaminated water of oil field and preparation method thereof |
| CN114229979A (en) * | 2022-02-18 | 2022-03-25 | 河南博源新材料有限公司 | Polyacrylamide composition containing Bola type cationic surfactant, preparation method and application thereof |
| CN114317144A (en) * | 2021-12-31 | 2022-04-12 | 上海舒尔雅日化有限公司 | Active nano silicon, water-based heavy oil dirt cleaning agent containing active nano silicon, and preparation method and application of water-based heavy oil dirt cleaning agent |
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| CN101348293A (en) * | 2007-07-20 | 2009-01-21 | 洛阳新普石化设备开发有限公司 | Composite degreaser |
| CN104176788A (en) * | 2014-09-09 | 2014-12-03 | 中国石油化工股份有限公司 | Deoiling agent for oilfield binary composite displacement output sewage and preparation method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106943771A (en) * | 2017-03-07 | 2017-07-14 | 青岛华蓝普环保工程有限公司 | A kind of degreaser of temperature-resistant high-efficient oil-polluted water and preparation method thereof |
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| CN106966910A (en) * | 2017-03-23 | 2017-07-21 | 青岛华蓝普环保工程有限公司 | A kind of degreaser handled for oil-contaminated water of oil field and preparation method thereof |
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| CN114317144A (en) * | 2021-12-31 | 2022-04-12 | 上海舒尔雅日化有限公司 | Active nano silicon, water-based heavy oil dirt cleaning agent containing active nano silicon, and preparation method and application of water-based heavy oil dirt cleaning agent |
| CN114229979A (en) * | 2022-02-18 | 2022-03-25 | 河南博源新材料有限公司 | Polyacrylamide composition containing Bola type cationic surfactant, preparation method and application thereof |
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