CN106565006A - Cationic type degreaser for polymer flooding produced water treatment - Google Patents
Cationic type degreaser for polymer flooding produced water treatment Download PDFInfo
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- CN106565006A CN106565006A CN201610978356.1A CN201610978356A CN106565006A CN 106565006 A CN106565006 A CN 106565006A CN 201610978356 A CN201610978356 A CN 201610978356A CN 106565006 A CN106565006 A CN 106565006A
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- degreaser
- polymer flooding
- quinoline
- capric aldehyde
- water process
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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
- C02F1/68—Treatment of water, waste water, or sewage by addition of specified substances, e.g. trace elements, for ameliorating potable water
- C02F1/682—Treatment of water, waste water, or sewage by addition of specified substances, e.g. trace elements, for ameliorating potable water by addition of chemical compounds for dispersing an oily layer on water
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D405/00—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom
- C07D405/02—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings
- C07D405/06—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings linked by a carbon chain containing only aliphatic carbon atoms
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K23/00—Use of substances as emulsifying, wetting, dispersing, or foam-producing agents
-
- 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
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Materials Engineering (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention belongs to the technical field of oil field wastewater treatment, and particularly relates to a cationic type degreaser for polymer flooding produced water treatment. The degreaser is characterized in that n-capric aldehyde reacts with epoxy bromobutane under catalysis of a boron trifluoride diethyl etherate solution to generate a midbody, and then the midbody reacts with quinoline to generate the cationic type degreaser. The molar ratio of the n-capric aldehyde to the epoxy bromobutane to the quinoline is 1:(0.75-1.5):(0.6-1.2), the preferential molar ratio is 1:1.25:0.80. The degreaser has the beneficial effects of being simple in preparing process, low in cost, high in adaptability and good in degreasing effect, and the degreasing rate is higher than 97%. The cationic type degreaser can be widely applied to an oil field polymer flooding produced water degreasing process.
Description
Technical field
The present invention relates to a kind of degreaser for disposing polluted water in oil, and in particular to a kind of to be used for polymer flooding water
The cationic degreaser of process.
Background technology
Polymer displacement of reservoir oil tech has been achieved for preferable oil increasing effect at present.Contain polyacrylamide in polymer displacement of reservoir oil
(PAM), as PAM has similarity with emulsifier molecules so that during PAM has system, molecule is concentrated on oil-water interfaces, with
Emulsifying molecule forms the composite membrane of larger intensity and favorable elasticity together.Based on These characteristics, polymer displacement of reservoir oil output sewage
It is higher containing oil index.
With the expansion of polymer displacement of reservoir oil application scale, thing followed problem is that polymer-flooding sewage is processed.Polymer displacement of reservoir oil
Sewage in not only oil content it is high, and contain substantial amounts of polymer.The presence of polymer increased the viscosity of water phase, make water phase
Taking oily ability strengthens, and increased the difficulty of oil-water separation；Microcosmic test result shows that polymer increases oil-water interfaces intensity,
Interface charge strengthens, and in causing recovered water, little oil droplet is stable in the presence of in water body, increased intractability；Additionally, polymer
Presence also disturbs the using effect of flocculant, makes flocculation be deteriorated, considerably increases the consumption of medicament；Due to polymer
Adsorption, the adsorptivity of polymer are stronger, the quantity of sand and mud increase of carrying, substantially reduce backwashing period.
At present frequently with measure mainly have：1. physical means polymer-contained sewage.Such technology mainly includes electric dehydration
Technology, " two-stage sedimentation, twice pressure filtration " treatment technology and jet air float technology etc.；2. chemical method is processed and is contained
Poly- sewage.Such technology carries out breakdown of emulsion process first, and then the medicament such as further preferably suitable degreaser carries out purification technique.
With deeply carrying out for polymer flooding, the treating capacity of polymer-bearing waste-water is increasing, and composition also becomes increasingly complex, and this is not
Only increase the difficulty of sewage disposal, can also cause the accelerated ageing of processing equipment, it can be seen that, the process of polymer-bearing waste-water is oil
The guarantee of field efficient health stable yields.But as ground enforcement operating type is complicated and changeable, cause sewage composition to have obvious
Region and ageing.
Patent ZL201410455664.7 " a kind of degreaser for oil field binary combination flooding output sewage " employs third
Alkene acyloxyethyl dimethyl amine, alkyl chloride, acrylamide, N, N '-methylene-bisacrylamide, Ammonium persulfate. and sodium sulfite are anti-
Should form, the degreaser has consumption few, low cost, the characteristics of oil removal rate is high, oil removal efficiency is high, prepare simple, cost is low
Feature, but the degreaser belongs to reverse demulsifier, it is poor for the demulsification of emulsion oil-in-water, meanwhile, the degreaser
It is not suitable for the oil removal treatment of polymer-bearing waste-water.
The content of the invention
The present invention provides a kind of cation for polymer flooding water process for the not enough of currently available technology
Type degreaser, the degreaser have preparation process is simple, a with low cost, strong adaptability, and deoiling effect it is good the characteristics of.
It is an object of the invention to provide a kind of cationic degreaser for polymer flooding water process, the oil removing
Agent is to generate intermediate with the reaction of epoxy n-butyl bromide by n-capric aldehyde under the catalysis of boron trifluoride ether solution, then anti-with quinoline
Cationic degreaser should be generated, its molecular formula is as follows：
The mol ratio of described n-capric aldehyde, epoxy n-butyl bromide and quinoline is 1: 0.75～1.5: 0.6～1.2, preferably 1:
1.25∶0.80。
Further object is that providing a kind of cationic degreaser for polymer flooding water process
Preparation method, the preparation method of the degreaser specifically includes following steps：
(1) n-capric aldehyde of above-mentioned mol ratio is added in equipped with reflux condensing tube, agitator, the four-hole boiling flask of thermometer,
Solvent is subsequently adding, 35～40 DEG C are warming up to, is under 100～200rpm, to stir 10～20min in stir speed (S.S.), is subsequently adding and urges
Agent, the epoxy n-butyl bromide of above-mentioned mol ratio is placed in constant pressure funnel, and it is 1～2 drop/min to control drop speed, is warming up to
45～50 DEG C, stir speed (S.S.) is 300～400rpm, 8～10h of isothermal reaction, is cooled to room temperature, obtains intermediate after the completion of reaction
2- nonyl -4- bromoethyl -1,3- dioxolane solution.
(2) in above-mentioned intermediate 2- nonyl -4- bromoethyl -1, in 3- dioxolane solution, add above-mentioned mol ratio
Quinoline, adjusts the temperature to 55～60 DEG C, and stir speed (S.S.) is adjusted to 400～550rpm, 10～20min of constant temperature, is subsequently adding iodate
Sodium, is warming up to 75～85 DEG C, and stir speed (S.S.) is 400～450rpm, is naturally cooling to room temperature, subsequently after 10～16h of isothermal reaction
Solvent is filtered to remove, crude product is obtained.
(3) above-mentioned crude product is washed with ether, is washed 3～5 times, products therefrom is dried into 12～24h, sticky product is obtained
Thing, i.e., degreaser of the invention.
Described solvent is carbon tetrachloride or acetonitrile, and consumption is 15～20 times of n-capric aldehyde quality；Described catalyst is
The boron trifluoride ether solution of mass concentration 30%, consumption for n-capric aldehyde quality 0.10～0.20%；Described sodium iodide
Consumption for n-capric aldehyde quality 2～4%.
Described reaction equation is as follows：
A kind of cationic degreaser for polymer flooding water process, which uses technical process as follows：
According to oil-containing situation in oilfield polymer flooding output sewage, the degreaser of the present invention is added in sewage, realized broken
Breast and oil-water separation, after reclaiming petroleum substance, are further processed for subsequent technique.The concrete addition of degreaser is as follows：
(1), during oil-containing α >=500mg/L, it is 50～200mg/L to add degreaser to make the mass concentration of degreaser in sewage；
(2)500>During oil-containing α >=200mg/L, it is 30～50mg/ to add degreaser to make the mass concentration of degreaser in sewage
L；
During (3) 200 ＞ oil-containings α >=50mg/L, it is 10～30mg/ to add degreaser to make the mass concentration of degreaser in sewage
L；
(4), during oil-containing α ＜ 50mg/L, it is 0.5～10mg/L to add degreaser to make the mass concentration of degreaser in sewage.
Provided by the present invention for the degreaser of polymer flooding water, which belongs to cationic surface active agent, especially
It is electron-withdrawing to be that quinoline has so that the electropositive of N atoms strengthens, so its electrostatic neutralising capacity is strong, the ζ-potential on oil droplet surface
It is rapid to decline, the probability increase of collision coalescence between oil droplet, so as to play a part of flocculation；Additionally, the oil removing agent molecule contains
Hydrophobic long-chain and heterocycle polar group, it is easy to adsorb with the oil droplet in sewage, electronegative molecule in water is adsorbed onto and is removed
Around oil preparation, and then w/o type emulsion is caused to be easy to breakdown of emulsion；The oil removing agent molecule of the present invention is easily adsorbed with greasy dirt, and then will bag
The polymer for overlaying on greasy surfaces replaces, and has broken O/W type emulsion intercalation methods, has reduced the viscosity of polymer flooding water,
So as to release the impurity such as the silt carried in sewage.In sum, degreaser of the present invention will cohesion, breakdown of emulsion and reduction
Three effects of viscosity combine, and improve oil removal efficiency.
The present invention is had the advantage that and beneficial effect compared with prior art：
(1) extensively, synthesis technique is simple, and product is easily obtained and transports preservation for the raw material sources of degreaser of the invention；
(2) degreaser strong adaptability of the invention, consumption are few, can meet the needs of environmental conservation and oil field development；
(3) degreaser of the invention does not contain inorganic flocculation composition, with cohesion, breakdown of emulsion and reduction viscosity three-in-one
Effect；
(4) the characteristics of degreaser of the invention has oil removal efficiency high, the oil removal rate of polymer flooding water up to 97% with
On, more existing medicament improves more than 50%, meets the requirement of the oil removing pretreatment of polymer flooding water.
Specific embodiment
With reference to specific embodiment, and the present invention is described in further detail with reference to data.It should be understood that these embodiments
It is of the invention solely for the purpose of illustration, rather than the scope of the present invention is limited by any way.
Embodiment 1：Degreaser B1And preparation method thereof
(1) degreaser B1Composition and component it is as follows：
Degreaser is to generate intermediate with the reaction of epoxy n-butyl bromide by n-capric aldehyde under the catalysis of boron trifluoride ether solution,
Then cationic degreaser is generated with quinoline reaction, its molecular formula is as follows：
Wherein, the mol ratio of n-capric aldehyde, epoxy n-butyl bromide and quinoline is 1: 0.75: 0.6.
(2) degreaser B1Preparation method it is as follows：
1. the n-capric aldehyde of 1mol is added in equipped with reflux condensing tube, agitator, the four-hole boiling flask of thermometer, is subsequently adding
2340g carbon tetrachloride, is warming up to 38 DEG C, is to stir 10min under 160rpm in stir speed (S.S.), is subsequently adding 0.156g mass concentrations
30% boron trifluoride ether solution, the epoxy n-butyl bromide of 0.75mol is placed in constant pressure funnel, and it is 1 to control drop speed
Drop/min, is warming up to 45 DEG C, and stir speed (S.S.) is 360rpm, isothermal reaction 8h, is cooled to room temperature, obtains intermediate after the completion of reaction
2- nonyl -4- bromoethyl -1,3- dioxolane solution；
2. the quinoline of 0.6mol in above-mentioned intermediate 2- nonyl -4- bromoethyl -1, is added in 3- dioxolane solution,
55 DEG C are adjusted the temperature to, stir speed (S.S.) is adjusted to 400rpm, constant temperature 10min, is subsequently adding 3.12g sodium iodide, is warming up to 80 DEG C,
Stir speed (S.S.) is 400rpm, and room temperature is naturally cooling to after isothermal reaction 10h, is subsequently filtered to remove solvent, obtains crude product；
3. wash above-mentioned crude product with ether, wash 3 times, products therefrom is dried into 12h, viscous product is obtained, i.e., this
Bright degreaser B1。
Embodiment 2：Degreaser B2And preparation method thereof
(1) degreaser B2Composition and component it is as follows：
Degreaser is to generate intermediate with the reaction of epoxy n-butyl bromide by n-capric aldehyde under the catalysis of boron trifluoride ether solution,
Then cationic degreaser is generated with quinoline reaction, its molecular formula is as follows：
Wherein, the mol ratio of n-capric aldehyde, epoxy n-butyl bromide and quinoline is 1: 1.25: 0.8.
(2) degreaser B2Preparation method it is as follows：
1. the n-capric aldehyde of 1mol is added in equipped with reflux condensing tube, agitator, the four-hole boiling flask of thermometer, is subsequently adding
2750g acetonitriles, are warming up to 35 DEG C, are to stir 15min under 100rpm in stir speed (S.S.), are subsequently adding 0.312g mass concentrations 30%
Boron trifluoride ether solution, the epoxy n-butyl bromide of 1.25mol is placed in constant pressure funnel, control drop speed for 2 drop/
Min, is warming up to 47 DEG C, and stir speed (S.S.) is 300rpm, isothermal reaction 9h, and room temperature is cooled to after the completion of reaction, obtains intermediate 2-
Nonyl -4- bromoethyl -1,3- dioxolane solution；
2. the quinoline of 0.8mol in above-mentioned intermediate 2- nonyl -4- bromoethyl -1, is added in 3- dioxolane solution,
58 DEG C are adjusted the temperature to, stir speed (S.S.) is adjusted to 500rpm, constant temperature 15min, is subsequently adding 4.56g sodium iodide, is warming up to 75 DEG C,
Stir speed (S.S.) is 420rpm, and room temperature is naturally cooling to after isothermal reaction 12h, is subsequently filtered to remove solvent, obtains crude product；
3. wash above-mentioned crude product with ether, wash 4 times, products therefrom is dried into 16h, viscous product is obtained, i.e., this
Bright degreaser B2。
Embodiment 3：Degreaser B3And preparation method thereof
(1) degreaser B3Composition and component it is as follows：
Degreaser is to generate intermediate with the reaction of epoxy n-butyl bromide by n-capric aldehyde under the catalysis of boron trifluoride ether solution,
Then cationic degreaser is generated with quinoline reaction, its molecular formula is as follows：
Wherein, the mol ratio of n-capric aldehyde, epoxy n-butyl bromide and quinoline is 1: 1.5: 1.2.
(2) degreaser B3Preparation method it is as follows：
1. the n-capric aldehyde of 1mol is added in equipped with reflux condensing tube, agitator, the four-hole boiling flask of thermometer, is subsequently adding
3120g carbon tetrachloride, is warming up to 40 DEG C, is to stir 20min under 200rpm in stir speed (S.S.), is subsequently adding 0.225g mass concentrations
30% boron trifluoride ether solution, the epoxy n-butyl bromide of 1.5mol is placed in constant pressure funnel, and it is 2 to control drop speed
Drop/min, is warming up to 50 DEG C, and stir speed (S.S.) is 400rpm, isothermal reaction 10h, is cooled to room temperature, obtains centre after the completion of reaction
Body 2- nonyl -4- bromoethyl -1,3- dioxolane solution；
2. the quinoline of 1.2mol in above-mentioned intermediate 2- nonyl -4- bromoethyl -1, is added in 3- dioxolane solution,
60 DEG C are adjusted the temperature to, stir speed (S.S.) is adjusted to 550rpm, constant temperature 20min, is subsequently adding 6.24g sodium iodide, is warming up to 85 DEG C,
Stir speed (S.S.) is 450rpm, and room temperature is naturally cooling to after isothermal reaction 16h, is subsequently filtered to remove solvent, obtains crude product；
3. wash above-mentioned crude product with ether, wash 5 times, products therefrom is dried into 24h, viscous product is obtained, i.e., this
Bright degreaser B3。
4 degreaser B of embodiment1Scene application
Multi-purpose station L2Water be water from PAM flooding, test process scale be 70m3/ d, water oil content 652mg/L,
Sewage salinity 10563mg/L, using the degreaser B of the present invention1To multi-purpose station L2Sewage carry out oil removal treatment, keep sewage
The concentration of middle degreaser is 60mg/L, and after process, oil content is reduced to 14.3mg/L, and oil content reduces by 97.8%, and reaching technique will
Ask.
5 degreaser B of embodiment2Scene application
Multi-purpose station L3Water be water from PAM flooding, test process scale be 60m3/ d, water oil content 765mg/L,
Sewage salinity 18523mg/L, using the degreaser B of the present invention2To multi-purpose station L3Sewage carry out oil removal treatment, keep sewage
The concentration of middle degreaser is 70mg/L, and after process, oil content is reduced to 11.5mg/L, and oil content reduces by 98.5%, and reaching technique will
Ask.
6 degreaser B of embodiment3Scene application
Multi-purpose station L5Water be water from PAM flooding, test process scale be 50m3/ d, water oil content 528mg/L,
Sewage salinity 21530mg/L, using the degreaser B of the present invention3To multi-purpose station L5Sewage carry out oil removal treatment, keep sewage
The concentration of middle degreaser is 52mg/L, and after process, oil content is reduced to 9.5mg/L, and oil content reduces by 98.2%, and reaching technique will
Ask.
Claims (7)
1. it is a kind of for polymer flooding water process cationic degreaser, it is characterised in that described degreaser be by
N-capric aldehyde generates intermediate with the reaction of epoxy n-butyl bromide under the catalysis of boron trifluoride ether solution, then generates with quinoline reaction
Cationic degreaser, its molecular formula are as follows：
2. it is according to claim 1 for polymer flooding water process cationic degreaser, it is characterised in that institute
The mol ratio of the n-capric aldehyde, epoxy n-butyl bromide and quinoline stated is 1: 0.75～1.5: 0.6～1.2.
3. the cationic degreaser for polymer flooding water process according to claim 1 and 2, its feature exists
In the mol ratio of described n-capric aldehyde, epoxy n-butyl bromide and quinoline is 1: 1.25: 0.80.
4. it is a kind of for polymer flooding water process cationic degreaser preparation method, it is characterised in that the preparation
Method specifically includes following steps：
(1) n-capric aldehyde of above-mentioned mol ratio is added in equipped with reflux condensing tube, agitator, the four-hole boiling flask of thermometer, then
Solvent is added, 35～40 DEG C are warming up to, is under 100～200rpm, to stir 10～20min in stir speed (S.S.), is subsequently adding catalysis
Agent, the epoxy n-butyl bromide of above-mentioned mol ratio is placed in constant pressure funnel, and it is 1～2 drop/min to control drop speed, is warming up to 45
～50 DEG C, stir speed (S.S.) is 300～400rpm, 8～10h of isothermal reaction, is cooled to room temperature, obtains intermediate 2- after the completion of reaction
Nonyl -4- bromoethyl -1,3- dioxolane solution；
(2) in above-mentioned intermediate 2- nonyl -4- bromoethyl -1, in 3- dioxolane solution, add the quinoline of above-mentioned mol ratio
Quinoline, adjusts the temperature to 55～60 DEG C, and stir speed (S.S.) is adjusted to 400～550rpm, 10～20min of constant temperature, is subsequently adding sodium iodide,
75～85 DEG C are warming up to, stir speed (S.S.) is 400～450rpm, room temperature is naturally cooling to after 10～16h of isothermal reaction, subsequently filter
Solvent is removed, crude product is obtained；
(3) above-mentioned crude product is washed with ether, is washed 3～5 times, products therefrom is dried into 12～24h, viscous product is obtained, i.e.,
The degreaser of the present invention.
5. it is according to claim 4 for polymer flooding water process cationic degreaser preparation method, its
It is characterised by, described described solvent is carbon tetrachloride or acetonitrile, and consumption is 15～20 times of n-capric aldehyde quality.
6. according to claim 4 or 5 for polymer flooding water process cationic degreaser preparation method,
Characterized in that, boron trifluoride ether solution of the described catalyst for mass concentration 30%, consumption is n-capric aldehyde quality
0.10～0.20%.
7. according to claim 4 or 5 for polymer flooding water process cationic degreaser preparation method,
Characterized in that, the consumption of described sodium iodide is the 2～4% of n-capric aldehyde quality.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610978356.1A CN106565006B (en) | 2016-11-04 | 2016-11-04 | Cationic oil removal agent for polymer flooding produced water treatment |
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| CN201610978356.1A CN106565006B (en) | 2016-11-04 | 2016-11-04 | Cationic oil removal agent for polymer flooding produced water treatment |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102093350A (en) * | 2011-01-20 | 2011-06-15 | 赣南师范学院 | Surface active substance using praziquantel as matrix and preparation technology thereof |
| CN102476853A (en) * | 2011-10-20 | 2012-05-30 | 常州亚环环保科技有限公司 | Treatment method of lead-containing wastewater |
-
2016
- 2016-11-04 CN CN201610978356.1A patent/CN106565006B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102093350A (en) * | 2011-01-20 | 2011-06-15 | 赣南师范学院 | Surface active substance using praziquantel as matrix and preparation technology thereof |
| CN102476853A (en) * | 2011-10-20 | 2012-05-30 | 常州亚环环保科技有限公司 | Treatment method of lead-containing wastewater |
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| 李奋强等: ""一种含吡啶环的单阳离子表面活性剂的合成"", 《日用化学品科学》 * |
| 辛寅昌等: "《胶体与界面化学在石油工业中的应用》", 31 July 2014, 石油工业出版社 * |
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