CN105348509A - Preparation method of water clarifier for water quality with high polymer content - Google Patents
Preparation method of water clarifier for water quality with high polymer content Download PDFInfo
- Publication number
- CN105348509A CN105348509A CN201510717698.3A CN201510717698A CN105348509A CN 105348509 A CN105348509 A CN 105348509A CN 201510717698 A CN201510717698 A CN 201510717698A CN 105348509 A CN105348509 A CN 105348509A
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- amino
- polyether
- water quality
- cleaning agent
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
- C08G65/32—Polymers modified by chemical after-treatment
- C08G65/329—Polymers modified by chemical after-treatment with organic compounds
- C08G65/333—Polymers modified by chemical after-treatment with organic compounds containing nitrogen
- C08G65/33303—Polymers modified by chemical after-treatment with organic compounds containing nitrogen containing amino group
- C08G65/33306—Polymers modified by chemical after-treatment with organic compounds containing nitrogen containing amino group acyclic
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
- B01J20/26—Synthetic macromolecular compounds
- B01J20/265—Synthetic macromolecular compounds modified or post-treated polymers
- B01J20/267—Cross-linked polymers
-
- 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
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
- C08G65/32—Polymers modified by chemical after-treatment
- C08G65/329—Polymers modified by chemical after-treatment with organic compounds
- C08G65/331—Polymers modified by chemical after-treatment with organic compounds containing oxygen
Abstract
The invention relates to a preparation method of a water clarifier for water quality with high polymer content. The invention belongs to the technical field of oilfield chemistry in the petroleum industry. A preparation method of a water clarifier for water quality with high polymer content comprises the following process steps: 1) synthesis of amino polyether: conducting an addition reaction on an initiator pentaethylenehexamine and a mixture of ethylene oxide and propylene epoxide under the temperature of 125-140 DEG C and pressure of 0.15-0.3 MPa to prepare amino random polyether; 2) amino polyether modification: conducting a condensation reaction on hydroxyl on a side chain of amino polyether and hydroxyl of dimethylamino ethanol by a cross-linking agent glutaraldehyde, so as to convert the terminal hydroxyl into a dimethylamine group, wherein the molar ratio of amino polyether to glutaraldehyde to dimethylamino ethanol is 1:6:6, the reaction temperature is 75-90 DEG C, and the reaction time is 4-6 h, and the reaction product is the water clarifier for water quality with high polymer content. The invention has the advantages of simple process, low engineering investment, energy saving, consumption reduction, good product benefit and wide application prospect.
Description
Technical field
The invention belongs to petroleum industry technical field of oilfield chemistry, particularly relate to a kind of high preparation method containing polymkeric substance water quality water cleaning agent.
Background technology
At present, oil field major part enters the High water cut productive life in succession, and around raising oil recovery factor, tertiary oil recovery technology development is very fast.Can stratum irreducible oil after displacement water drive effectively with chemical agent oil removing, improve oil recovery factor, significant to the stable yields in oil field.But the application of these technology of reservoir sweep makes the emulsification degree of crude oil more and more serious, causes profit settlement separate more difficult.Polymer flooding has been carried out in part oil field in succession, find because polymer content in Produced Liquid is high, cause dehydrating of crude oil and sewage degrease difficulty, add processing cost, the poly-Produced Liquid oily water separation problem of note fails better to be solved always, have impact on the normal production in oil field.With the expansion of poly-scale and the prolongation of time of showwing loving care for, in Produced Liquid, polymer content increases gradually, and extraction liquid measure increases year by year, and its intractability is also in continuous increase.See according to the condition of production that scene is fed back at present, conventional crude oil dehydration and sewage disposal technology have been difficult to adapt to, and a large amount of Produced Liquid containing polymkeric substance causes the problems such as the reduction of existing installation processing efficiency, shortening in work-ing life.
Summary of the invention
The present invention provides a kind of high preparation method containing polymkeric substance water quality water cleaning agent for solving in known technology the technical problem that exists.
Existing more oil field adopts the poly-displacement of reservoir oil of note, and with the expansion of poly-scale and the prolongation of time of showwing loving care for, in Produced Liquid, polymer content increases gradually, and extraction liquid measure increases year by year, and its intractability is also in continuous increase.The water cleaning agent of research and development department of the present invention, being directed to the high process containing note polywater has good effect, solves oil produced water difficult treatment, the problems such as re-injection/row sea is not up to standard.
The object of this invention is to provide a kind of technique simple, easy to operate, product is stablized, and is directed to the preparation method of height containing polymkeric substance water quality water cleaning agent that the high process containing note polywater has the features such as good effect.
The present invention's height is containing the preparation method of polymkeric substance water quality water cleaning agent, the height that is directed to of synthesis contains the water cleaning agent noting polywater matter, main component is cross-linking modified amino-polyether, the core of modified polyether is a polyamino group, eight end of the chain tails are dimethylamine groups, lone-pair electron in total atom N are all charged groups.There is good adsorptive power.It is a kind of cationic and novel water cleaning agent that is polymer-type of being different from.
The technical scheme that the preparation method that the present invention's height contains polymkeric substance water quality water cleaning agent takes is:
A high preparation method containing polymkeric substance water quality water cleaning agent, is characterized in: the high preparation process containing polymkeric substance water quality water cleaning agent comprises following processing step,
1) synthesis of amino-polyether:
The initiator of amino-polyether is five ethene hexamines, with the mixture addition reaction of oxyethane, propylene oxide, makes amino atactic polyether; Five ethene hexamines have eight reactive hydrogens, connect eight side chains, and each side chain is polyoxypropylene, polyoxyethylated mixed group, end group is hydroxyl; Addition reaction temperature 125 DEG C ~ 140 DEG C, pressure 0.15MPa ~ 0.3MPa;
2) amino-polyether modified:
By linking agent glutaraldehyde, the hydroxyl on amino-polyether side chain and dimethylamino-ethanol hydroxyl are carried out condensation reaction, the terminal hydroxy group of amino-polyether becomes dimethylin group; Reactant molar ratio is amino-polyether: glutaraldehyde: dimethylamino-ethanol=1:6:6; Temperature of reaction 75 DEG C ~ 90 DEG C, time 4 ~ 6h; The product be obtained by reacting is high containing polymkeric substance water quality water cleaning agent.
The present invention's height can also adopt following technical scheme containing the preparation method of polymkeric substance water quality water cleaning agent:
Described height, containing the preparation method of polymkeric substance water quality water cleaning agent, is characterized in: during the synthesis of amino-polyether, and five ethene hexamines and m oxyethane and n propylene oxide addition reaction obtain amino atactic polyether; M+n=24 ~ 32.
Described height, containing the preparation method of polymkeric substance water quality water cleaning agent, is characterized in: during the synthesis of amino-polyether, initiator is potassium hydroxide, and weight concentration is 0.2-0.5%.
The advantage that the present invention has and positively effect are:
The high preparation method containing polymkeric substance water quality water cleaning agent is owing to have employed the brand-new technical scheme of the present invention, compared with prior art, the present invention is the development adapting to oil field, for a kind of water cleaning agent efficiently of research and development containing polymer produced liquid, make sewage re-injection up to standard or row sea, and construction investment can be reduced to a certain extent, save energy and reduce the cost, facilitate production management, to have broad application prospects, economy and environment benefit preferably.
Embodiment
For summary of the invention of the present invention, Characteristic can be understood further, hereby exemplify following examples, and be described in detail as follows:
Embodiment 1
The high preparation method containing polymkeric substance water quality water cleaning agent, the height that is directed to of synthesis contains the water cleaning agent noting polywater matter, main component is cross-linking modified amino-polyether, the core of modified polyether is a polyamino group, eight end of the chain tails are dimethylamine groups, lone-pair electron in total atom N are all charged groups.There is good adsorptive power.The high preparation process containing polymkeric substance water quality water cleaning agent comprises following processing step:
1) synthesis of amino-polyether:
The initiator of amino-polyether is five ethene hexamines, with the mixture addition reaction of oxyethane, propylene oxide, makes amino atactic polyether.Five ethene hexamines have eight reactive hydrogens, can connect eight side chains, and each side chain is polyoxypropylene, polyoxyethylated mixed group, end group is hydroxyl.
Reaction formula: five ethene hexamine+m oxyethane+n propylene oxide
=amino atactic polyether m+n=(24 ~ 32)
Reaction conditions: temperature 130 DEG C, pressure 0.2MPa.
Initiator: potassium hydroxide 0.3%.
2) amino-polyether modified
By linking agent glutaraldehyde, the hydroxyl on amino-polyether side chain and dimethylamino-ethanol hydroxyl are carried out condensation reaction, the terminal hydroxy group of amino-polyether becomes dimethylin group.
Reactant molar ratio: amino-polyether: glutaraldehyde: dimethylamino-ethanol=1:6:6.
Reaction conditions: temperature 80 DEG C, normal pressure, time 5h.
The product be obtained by reacting is water cleaning agent.
Comparative example 2
In experiment, water sample used is upstream, Bohai Sea platform primary separator aqueous phase outlet water quality (not adding water cleaning agent), test temperature is 60 degree, tests the water cleaning agent ELWC-02 that water cleaning agent kind used has several medicament in on-the-spot water cleaning agent, our company's medicament storehouse and embodiment 1 to synthesize.
Water quality quality is evaluated and from getting well to differing from is: A+/A/A-/B+/B/B-/C/D
First group of experiment, medicament filling concentration is 240ppm.
| On-the-spot medicament | Water quality is yellow, and effect is slightly good | B+ |
| WC-80 | Water quality is turned to be yellow, and have a small amount of wall built-up, effect is general | B- |
| WC-82 | Water quality is turned to be yellow, and have a small amount of wall built-up, effect is general | B- |
| WC-85 | Water quality is dark yellow, weak effect | C |
| ELWC-02 | Water quality is yellowish, and have a small amount of wall built-up, effect is better | B+ |
| WC-87 | Water quality is turned black, weak effect | D |
| WC-91 | Water quality is turned black, weak effect | D |
| WC-92 | Water quality is dark yellow, weak effect | C |
Second group of experiment: medicament filling concentration is 400ppm.
| WC81 | Water quality is turned to be yellow, and produce floc particle comparatively large, ascent rate is general | B |
| WC82 | Water quality is turned black, weak effect | D |
| WC79 | Water quality is turned to be yellow, and produce floc particle tiny, ascent rate is very slow | B- |
| WC88 | Water quality is turned to be yellow, and produce flocculation structure loose, ascent rate is fast | B+ |
| On-the-spot medicament | Water quality is yellowish, and produce flocculation structure loose, ascent rate is fast | B+ |
| WC80 | Water quality is turned black, weak effect | D |
| WC59 | Water quality is yellowish, and produce flco viscosity comparatively large, wall built-up is serious | B |
| ELWC-02 | Water quality is saturating clearly, and produce floc particle little, ascent rate is fast | A |
It is simple that the present embodiment has described technique, easy to operate, and product is stablized, and being directed to the high note polywater that contains has the features such as good treatment effect.
Claims (3)
1. a high preparation method containing polymkeric substance water quality water cleaning agent, is characterized in that: the high preparation process containing polymkeric substance water quality water cleaning agent comprises following processing step,
1) synthesis of amino-polyether:
The initiator of amino-polyether is five ethene hexamines, with the mixture addition reaction of oxyethane, propylene oxide, makes amino atactic polyether; Five ethene hexamines have eight reactive hydrogens, connect eight side chains, and each side chain is polyoxypropylene, polyoxyethylated mixed group, end group is hydroxyl; Addition reaction temperature 125 DEG C ~ 140 DEG C, pressure 0.15MPa ~ 0.3MPa;
2) amino-polyether modified:
By linking agent glutaraldehyde, the hydroxyl on amino-polyether side chain and dimethylamino-ethanol hydroxyl are carried out condensation reaction, the terminal hydroxy group of amino-polyether becomes dimethylin group; Reactant molar ratio is amino-polyether: glutaraldehyde: dimethylamino-ethanol=1:6:6; Temperature of reaction 75 DEG C ~ 90 DEG C, time 4 ~ 6h; The product be obtained by reacting is high containing polymkeric substance water quality water cleaning agent.
2. height according to claim 1 is containing the preparation method of polymkeric substance water quality water cleaning agent, it is characterized in that: during the synthesis of amino-polyether, and five ethene hexamines and m oxyethane and n propylene oxide addition reaction obtain amino atactic polyether; M+n=24 ~ 32.
3. height according to claim 1 and 2 is containing the preparation method of polymkeric substance water quality water cleaning agent, it is characterized in that: during the synthesis of amino-polyether, initiator is potassium hydroxide, and weight concentration is 0.2-0.5%.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510717698.3A CN105348509B (en) | 2015-10-28 | 2015-10-28 | A kind of preparation method of the water cleaning agent of water quality containing polymer high |
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| CN201510717698.3A CN105348509B (en) | 2015-10-28 | 2015-10-28 | A kind of preparation method of the water cleaning agent of water quality containing polymer high |
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| CN105348509A true CN105348509A (en) | 2016-02-24 |
| CN105348509B CN105348509B (en) | 2017-05-31 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114989410A (en) * | 2022-05-13 | 2022-09-02 | 中海油(天津)油田化工有限公司 | Water clarifier for offshore oil field and preparation method thereof |
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| US4420413A (en) * | 1980-12-30 | 1983-12-13 | Hoechst Aktiengesellschaft | Oxyalkylated addition products from ethylene oxide-propylene oxide block polymers and bis-glycidyl ethers and their use |
| US5190683A (en) * | 1990-06-19 | 1993-03-02 | Baker Hughes Incorporated | Water clarification composition containing a water clarifier component and a floc modifier component |
| CN101024153A (en) * | 2007-01-12 | 2007-08-29 | 辽河石油勘探局 | Compound-type demulsifying agent of thick-oil steam-driven dewatering type |
| CN102786982A (en) * | 2011-05-20 | 2012-11-21 | 克拉玛依奥克化学有限公司 | Preparation method for intermediate base-cycloalkyl crude oil emulsion de-emulsifier and product thereof |
| CN103642518A (en) * | 2013-12-10 | 2014-03-19 | 天津亿利科能源科技发展股份有限公司 | High-water-cut heavy oil demulsifier used for oil fields and preparation method thereof |
| CN103739837A (en) * | 2013-12-20 | 2014-04-23 | 西南石油大学 | Block polyether oilfield sewage treatment agent taking N'N-dimethyl ethanolamine as initiator and preparation method thereof |
| CN104497297A (en) * | 2014-12-10 | 2015-04-08 | 辽宁石油化工大学 | Novel broad-spectrum crude oil demulsifying agent and preparation method thereof |
| CN104774646A (en) * | 2015-04-22 | 2015-07-15 | 孙豫庆 | Comb type polyether emulsion breaker taking multi-amino polyether as initiator and preparation method of comb type polyether emulsion breaker |
-
2015
- 2015-10-28 CN CN201510717698.3A patent/CN105348509B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US4420413A (en) * | 1980-12-30 | 1983-12-13 | Hoechst Aktiengesellschaft | Oxyalkylated addition products from ethylene oxide-propylene oxide block polymers and bis-glycidyl ethers and their use |
| US5190683A (en) * | 1990-06-19 | 1993-03-02 | Baker Hughes Incorporated | Water clarification composition containing a water clarifier component and a floc modifier component |
| CN101024153A (en) * | 2007-01-12 | 2007-08-29 | 辽河石油勘探局 | Compound-type demulsifying agent of thick-oil steam-driven dewatering type |
| CN102786982A (en) * | 2011-05-20 | 2012-11-21 | 克拉玛依奥克化学有限公司 | Preparation method for intermediate base-cycloalkyl crude oil emulsion de-emulsifier and product thereof |
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| CN103739837A (en) * | 2013-12-20 | 2014-04-23 | 西南石油大学 | Block polyether oilfield sewage treatment agent taking N'N-dimethyl ethanolamine as initiator and preparation method thereof |
| CN104497297A (en) * | 2014-12-10 | 2015-04-08 | 辽宁石油化工大学 | Novel broad-spectrum crude oil demulsifying agent and preparation method thereof |
| CN104774646A (en) * | 2015-04-22 | 2015-07-15 | 孙豫庆 | Comb type polyether emulsion breaker taking multi-amino polyether as initiator and preparation method of comb type polyether emulsion breaker |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114989410A (en) * | 2022-05-13 | 2022-09-02 | 中海油(天津)油田化工有限公司 | Water clarifier for offshore oil field and preparation method thereof |
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