CN102897887A - Polymer-containing oil-field wastewater treating agent - Google Patents
Polymer-containing oil-field wastewater treating agent Download PDFInfo
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- CN102897887A CN102897887A CN2012104449824A CN201210444982A CN102897887A CN 102897887 A CN102897887 A CN 102897887A CN 2012104449824 A CN2012104449824 A CN 2012104449824A CN 201210444982 A CN201210444982 A CN 201210444982A CN 102897887 A CN102897887 A CN 102897887A
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Abstract
The invention relates to a polymer-containing oil-field wastewater treating agent belonging to the technical field of oil-field wastewater treatment. The polymer-containing oil-field wastewater treating agent is characterized by comprising the following components by mass percent: 80-90% of PAC (Polymeric Aluminum Chloride), 5-10% of organic positive ion high polymer, and 5-10% of polyquaternium anti-phase demulsifying agent. The polymer-containing oil-field wastewater treating agent provided by the invention is prepared by using a compound method; the water treating agent has very strong flocculation and demulsification effect, and the organic impurities and emulsified oil contained in the oil-field wastewater can be effectively eliminated; and the polymer-containing oil-field wastewater treating agent has the advantages of simple component, convenience in preparation, high speed and efficiency, low cost, wide application range, high demulsification efficiency, small use amount, no toxic and side effect, obvious water purification and the like.
Description
Technical field
The invention belongs to oil field waste and process the skill technical field, particularly relate to a kind of poly-oil extraction waste water treatment agent that contains.
Background technology
At present, polymer flooding is a kind of processing method of effective raising oil recovery factor, polymer flooding productive area and output constantly increase, in guaranteeing the crude oil stable yields, bringing into play irreplaceable vital role, but, along with the expansion that polymer flooding is used scale, the intractability of extracted waste water has increased.Compare with the condition of water quality of filled drive oil extraction waste water, not only oleaginousness is high in the polymer flooding oil-extraction waste water, and contains a large amount of polymkeric substance.The existence of polymkeric substance has increased the viscosity of water, makes water take oily ability and strengthens, and has also increased the difficulty of oily water separation simultaneously.Exist and to expend substantial contribution and establishes new treatment station or set up new treatment facility, development efficient flocculant and treatment process etc., the technical problem such as process for polymer sewage.Usually the organic polymer coargulator that adopts exists prescription simple, function singleness, the shortcoming such as consumption is large, and oil removal rate is low.
Summary of the invention
The present invention provides a kind of poly-oil extraction waste water treatment agent that contains for solving the technical problem that exists in the known technology.
The purpose of this invention is to provide a kind ofly have that component is simple, preparation easily and fast efficient, with low cost, wide application, the characteristics such as breakdown of emulsion efficient is high, usage quantity is little contain poly-oil extraction waste water treatment agent.
The purification of oilfield sewage mainly is oil removing, the assorted and suspended substance except machine, the emulsified oil droplet interfacial film generally has electronegativity, with the cation superpolymer of positive charge and polyquaternium reverse-phase emulsifier can in and emulsified oil droplet interfacial film negative charge, the fail in compression electrostatic double layer, weaken interfacial film intensity, so that the mutual collision coalescence of emulsion droplet, simultaneously can produce bridging and throwing out, impel emulsified oil droplet to form the large oil droplet of particle diameter, under the buoyancy of water effect, from water, separate gradually, thereby reach the purpose of rp demulsification.And the machine in the sewage is assorted and suspended substance can be removed with flocculent precipitation by PAC and cation superpolymer.
The present invention contains poly-oil extraction waste water treatment agent:
Gather the oil extraction waste water treatment agent a kind of containing, and is characterized in: the each component mass percent that contains poly-oil extraction waste water treatment agent is PAC80%-90%, organic cation superpolymer 5%-10%, polyquaternium reverse-phase emulsifier 5%-10%.
The present invention contains poly-oil extraction waste water treatment agent can also adopt following technical scheme:
Gather the oil extraction waste water treatment agent described containing, and be characterized in: the organic cation superpolymer is PDMC, and its structural formula is
Gather the oil extraction waste water treatment agent described containing, and be characterized in: the structural formula of polyquaternium reverse-phase emulsifier is
The preparation method that the present invention contains poly-oil extraction waste water treatment agent adopts the mode of mechanically mixing PAC, organic cation superpolymer and polyquaternium reverse-phase emulsifier to make.
Advantage and positively effect that the present invention has are:
Contain poly-oil extraction waste water treatment agent owing to adopted the brand-new technical scheme of the present invention, compared with prior art, has following characteristics: adopt composite method preparation, technique is simple, raw material is easy to get, and has no side effect, and water conditioner has extremely strong flocculation demulsification, effectively remove the assorted and oil in water emulsion of the machine that contains in the oil extraction waste water, treatment effect is obvious.Suspended substance in the polymer produced water and irreducible oil had efficiently take off surely, by force flocculation and breakdown of emulsion ability, consumption is few, cost is low.
Embodiment
For further understanding summary of the invention of the present invention, Characteristic, hereby exemplify following examples and be described in detail as follows:
Embodiment 1
Contain the preparation and application of poly-oil extraction waste water treatment agent:
Component proportion (by weight): PDMC:5%, PAC:90%, polyquaternium reverse-phase emulsifier: 5%.
Preparation method: evenly make by the formula ratio mechanically mixing.
Experimental subjects: the polymer-bearing waste-water of taking at sampling point.
Experimental technique: measure the 100mL polymer-bearing waste-water, add the different treatment agent concussion of concentration and shake up observe phenomena.The results are shown in Table 1.
The purifying water effect of table 1 different concns treatment agent
Embodiment 2.
Contain the preparation and application of poly-oil extraction waste water treatment agent:
Component proportion (by weight): PDMC:5%, PAC:85%, polyquaternium reverse-phase emulsifier: 10%.
The preparation method, experimental subjects and the experimental technique that contain poly-oil extraction waste water treatment agent are identical with experiment 1, and experimental result sees Table 2.
The purifying water effect of table 2 different concns treatment agent
Embodiment 3.
It is (by weight): PDMC:10% that the present invention contains poly-oil extraction waste water treatment agent component proportion, PAC:85%, polyquaternium reverse-phase emulsifier: 5%.
Preparation and experiment condition such as embodiment 1 the results are shown in Table 3.
The purifying water effect of table 3 different concns treatment agent
Embodiment 4
Containing poly-oil extraction waste water treatment agent component proportion is (by weight): PDMC:10%, PAC:80%, polyquaternium reverse-phase emulsifier: 10%.
Preparation and experiment condition as above the results are shown in Table 4.
The purifying water effect of table 4 different concns treatment agent
Embodiment 5
It is (by weight): PDMC:5% that present embodiment contains poly-oil extraction waste water treatment agent component proportion, PAC:90%, polyquaternium reverse-phase emulsifier: 5%.
Contrast treatment agent: WC-3355, WC-3412, WC-3487 and four kinds of medicaments of WC-3561 of generally using.
Experimental subjects, test method and condition are the same, and experimental result sees Table 5.
The purifying water effect of table 5 different concns and different treatment agent
Claims (3)
1. one kind contains poly-oil extraction waste water treatment agent, and it is characterized in that: the each component mass percent that contains poly-oil extraction waste water treatment agent is PAC80%-90%, organic cation superpolymer 5%-10%, polyquaternium reverse-phase emulsifier 5%-10%.
2. according to gathering the oil extraction waste water treatment agent claimed in claim 1 containing, it is characterized in that: the organic cation superpolymer is PDMC, and its structural formula is
3. according to gathering the oil extraction waste water treatment agent claimed in claim 1 containing, it is characterized in that: the structural formula of polyquaternium reverse-phase emulsifier is
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2012104449824A CN102897887A (en) | 2012-11-09 | 2012-11-09 | Polymer-containing oil-field wastewater treating agent |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012104449824A CN102897887A (en) | 2012-11-09 | 2012-11-09 | Polymer-containing oil-field wastewater treating agent |
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| CN102897887A true CN102897887A (en) | 2013-01-30 |
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| CN2012104449824A Pending CN102897887A (en) | 2012-11-09 | 2012-11-09 | Polymer-containing oil-field wastewater treating agent |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103539291A (en) * | 2013-11-08 | 2014-01-29 | 上海睿岛节能环保科技有限公司 | Catalytic flocculation separation method for removing polymers from polymer-containing sewage in oilfield |
| CN105271466A (en) * | 2014-07-11 | 2016-01-27 | 中国石油化工股份有限公司 | Oily scum dehydrator and preparation method thereof |
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| CN103539291B (en) * | 2013-11-08 | 2015-05-13 | 上海睿岛节能环保科技有限公司 | Catalytic flocculation separation method for removing polymers from polymer-containing sewage in oilfield |
| CN105271466A (en) * | 2014-07-11 | 2016-01-27 | 中国石油化工股份有限公司 | Oily scum dehydrator and preparation method thereof |
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Application publication date: 20130130 |