CN203545827U - Three-dimensional electrode-ultrasonic-oxidative coupling reactor - Google Patents
Three-dimensional electrode-ultrasonic-oxidative coupling reactor Download PDFInfo
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- CN203545827U CN203545827U CN201320697290.0U CN201320697290U CN203545827U CN 203545827 U CN203545827 U CN 203545827U CN 201320697290 U CN201320697290 U CN 201320697290U CN 203545827 U CN203545827 U CN 203545827U
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- 238000005691 oxidative coupling reaction Methods 0.000 title abstract 4
- 239000007788 liquid Substances 0.000 claims abstract description 30
- 239000012530 fluid Substances 0.000 claims abstract description 10
- 230000001590 oxidative effect Effects 0.000 claims abstract description 10
- 230000008878 coupling Effects 0.000 claims abstract description 9
- 238000010168 coupling process Methods 0.000 claims abstract description 9
- 238000005859 coupling reaction Methods 0.000 claims abstract description 9
- 239000007800 oxidant agent Substances 0.000 claims abstract description 9
- 238000007254 oxidation reaction Methods 0.000 claims description 18
- 239000002131 composite material Substances 0.000 claims description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical group C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 abstract description 6
- 239000007787 solid Substances 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 239000002957 persistent organic pollutant Substances 0.000 abstract description 4
- 239000003208 petroleum Substances 0.000 abstract description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 2
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 22
- 230000003647 oxidation Effects 0.000 description 11
- 208000028659 discharge Diseases 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 230000003851 biochemical process Effects 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000000701 coagulant Substances 0.000 description 3
- 230000015271 coagulation Effects 0.000 description 3
- 238000005345 coagulation Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- ZRALSGWEFCBTJO-UHFFFAOYSA-N Guanidine Chemical compound NC(N)=N ZRALSGWEFCBTJO-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 108010010803 Gelatin Proteins 0.000 description 1
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- CHJJGSNFBQVOTG-UHFFFAOYSA-N N-methyl-guanidine Natural products CNC(N)=N CHJJGSNFBQVOTG-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- SWSQBOPZIKWTGO-UHFFFAOYSA-N dimethylaminoamidine Natural products CN(C)C(N)=N SWSQBOPZIKWTGO-UHFFFAOYSA-N 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 238000003411 electrode reaction Methods 0.000 description 1
- 238000006056 electrooxidation reaction Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229920000159 gelatin Polymers 0.000 description 1
- 239000008273 gelatin Substances 0.000 description 1
- 235000019322 gelatine Nutrition 0.000 description 1
- 235000011852 gelatine desserts Nutrition 0.000 description 1
- -1 hydroxyl radical free radical Chemical class 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 238000006385 ozonation reaction Methods 0.000 description 1
- 230000001699 photocatalysis Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- UMPKMCDVBZFQOK-UHFFFAOYSA-N potassium;iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[K+].[Fe+3] UMPKMCDVBZFQOK-UHFFFAOYSA-N 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000009284 supercritical water oxidation Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000002525 ultrasonication Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
- 238000009279 wet oxidation reaction Methods 0.000 description 1
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Abstract
The utility model discloses a three-dimensional electrode-ultrasonic-oxidative coupling reactor. The coupling reactor comprises an electrolytic tank in which an anode, a cathode and a third electrode are arranged; the anode is an inert combined electrode, the cathode is an active electrode, and the third electrode is an activated carbon electrode; a liquid inlet, an oxidant inlet and a liquid outlet are formed in the electrolytic tank; the electrolytic tank is connected with an ultrasonic source. According to the three-dimensional electrode-ultrasonic-oxidative coupling reactor, three processing parts are integrated, so that the processing efficiency is improved, the equipment is simplified, and the cost is also decreased. With the adoption of the coupling reactor, petroleum, suspended solid, organic pollutant and other harmful components can be effectively removed from flow-back fracturing fluid, the processing effect is obviously superior to that of single technology; the three-dimensional electrode-ultrasonic-oxidative coupling reactor has industrial application prospect.
Description
Technical field
The utility model relates to a kind of three-diemsnional electrode-ultrasonic-oxidation coupling reactor, belongs to the sewage treatment area of oil-gas field development.
Background technology
The hypotonic reserves in the world are huge, and pressure break is the gordian technique of its exploitation.In pressing crack construction process, certainly lead to a large amount of fracturing outlet liquids, main source returns the pressure break breaking glue solution that ejects and the pressure break original gelatin (base fluid) of constructed residual from pit shaft after completing for a large amount of well-flushing waste waters, the pressing crack construction that adopts active water clean-out service to produce before and after construction.Fracturing outlet liquid generally has following characteristics: 1. intermittently discrete discharge, the large (100～300m of quantity discharged
3/ well); 2. pollutant component is complicated, and environmental pollution is serious: return in discharge opeing containing materials such as a large amount of harmful suspended solids, Persistent organic pollutants and formaldehyde, petroleum-type, if not treated and row outward can cause serious harm to environment; 3. stable system, difficult treatment: guanidine glue class viscosifying agent and various additives particularly make fracturing outlet liquid generally have high chemical oxygen demand (COD), high stability, full-bodied feature adding of hydrophilic additive, and the more difficult realization of common process method is efficiently processed.
Conventional fracturing outlet liquid treatment process mainly comprises Coagulation Method, oxidation style, biochemical process, absorption method and extraction process etc. at present.
(1) Coagulation Method
Most oil fields, before advanced treatment pressure break waste water, often adopt Coagulation Method to remove suspended particulate and the partial organic substances in waste water as pre-treatment.Tai-Ace S 150, polymerize aluminum chloride, PAFS are the most common coagulating agent.Yet, due to return in discharge opeing, exist the macromolecule organic of a large amount of complicated components and viscosity large, often hinder coagulating agent and play a role; conventionally can strengthen in this case the dosage of coagulating agent; but inevitably produce great quantity of floc, form mud, cause secondary pollution.
(2) oxidation style
Oxidation style refers to oxygenant and relevant auxiliary agent is added among fracturing outlet liquid according to certain way, oxygenant utilizes the physics such as light, sound, electricity, magnetic or chemical action to produce the hydroxyl radical free radical of tool strong oxidizing property in water treatment procedure, macromole hardly degraded organic substance in water body is oxidized to low toxicity or nontoxic small-molecule substance, even directly be degraded to CO2 and H2O, approach permineralization.Oxidation style mainly comprises several classes such as Fenton oxidation style, photocatalytic oxidation, Ozonation, ultrasonic assisted oxidation method, wet oxidation process and supercritical water oxidation method.Study and show at present, single oxidation style is unsatisfactory to the treatment effect of fracturing outlet liquid, and in most cases, COD clearance is only 20% left and right.
(3) biochemical process
Biochemical process is relatively ordinary method of wastewater treatment process, can be divided into aerobe facture and the large class of anaerobic biological treatment method two.Aerobe facture is under the condition existing at free oxygen, with oxygen, makees electron acceptor(EA), utilizes the metabolism of microorganism to realize the degraded of pollutent.Biochemical process generally has the shortcomings such as equipment takes up an area greatly, the treatment time is long.Due to contamination characteristics such as the complicacy of fracturing outlet liquid, polytropies, the application that biochemical processing is processed at fracturing waste liquor is mostly in the experimental study stage, and engineering practice is few.
If make the processing of fracturing outlet liquid reach national emission standard, current technique is that aforesaid method is combined according to different order substantially, successively fracturing outlet liquid is processed, and this part technology is focus at home always.Due to the complicated component of fracturing waste liquor, difficult treatment, all there are some defects in these technology, as low in processing efficiency, technique is loaded down with trivial details, flow process is long, processing costs is expensive, treatment facility is complicated or technology realizability requires high more or less.In sum, current treatment technology can not meet the efficient processing demands of fracturing outlet liquid.
Utility model content
The purpose of this utility model is to provide a kind of three-diemsnional electrode-ultrasonic-oxidation coupling reactor, and the utility model can be realized three kinds of processing: Using Electrochemical Reactor with Three-dimensional Electrode reaction, ultrasonic and oxidation, fracturing outlet liquid is effectively purified, and particularly efficiently remove COD.
Three-diemsnional electrode provided by the utility model-ultrasonic-oxidation coupling reactor, it comprises an electrolyzer; In described electrolyzer, be provided with anode, negative electrode and third electrode;
Described anode is inert composite electrode, and described negative electrode is active electrode, and described third electrode is activated carbon electrodes;
Described electrolyzer is provided with fluid inlet, oxidant inlet and liquid outlet;
Described electrolyzer is connected with a ultrasonic source.
In above-mentioned coupled reactor, the spacing between described anode and described negative electrode is 1～6cm.
In above-mentioned coupled reactor, described fluid inlet, described oxidant inlet and described liquid outlet are all located at the top of described electrolyzer.
The utility model is integrated in one three kinds of processing element, has simplified equipment when having strengthened processing efficiency, has reduced cost.The utility model coupled reactor can efficiently be removed the objectionable constituent such as fracturing outlet liquid petroleum class, suspended solid and organic pollutant, and treatment effect is obviously better than monotechnics, has industrial applications prospect.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model three-diemsnional electrode-ultrasonic-oxidation coupling reactor.
In figure, each mark is as follows:
1 electrolyzer, 2 fluid inlets, 3 oxidant inlets, 4 liquid outlets, 5 ultrasonic sources.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further, but the utility model is not limited to following examples.
As shown in Figure 1, the three-diemsnional electrode that the utility model provides-ultrasonic-oxidation coupling reactor comprises an electrolyzer 1, in this electrolyzer 1, be provided with anode (not shown), negative electrode (not shown) and third electrode (not shown), and the spacing between anode and negative electrode can be adjusted in the scope of 1～6cm.Wherein, anode is inert composite electrode, and negative electrode is active electrode, and third electrode is activated carbon electrodes, by electrochemical reaction, fracturing outlet liquid is carried out to electrochemical oxidation.
In the utility model, on the top of electrolyzer 1, be provided with fluid inlet 2, oxidant inlet 3 and liquid outlet 4, fluid inlet 2 and oxidant inlet 3 are respectively used to the interior injection of electrolyzer 1 pending fracturing outlet liquid and oxygenant, and liquid outlet 4 is for discharging electrolyzer 1 by the fracturing outlet liquid after oxide treatment.
In the utility model, for fracturing outlet liquid being carried out to electrochemical treatment and when oxidation, apply ultrasonic effect simultaneously, this electrolyzer 1 is connected with a ultrasonic source 5.
With a specific embodiment, use procedure of the present utility model and result of use are described below.
Certain oilfield fracturing outlet liquid, stoste pH value is that 6, COD, oleaginousness and solid suspension content are respectively 300mg/L, 12mg/L and the 200mg/L that 4020mg/L, 30mg/L and 340mg/L are all greater than national Specification.
4L fracturing outlet liquid is placed in to three-diemsnional electrode-ultrasonic-advanced oxidation coupled reactor (being added to electrolyzer 1 by fluid inlet 2), electrode plate groups is set and is combined into inert composite electrode (sun)-active electrode (the moon)-activated carbon electrodes (third electrode).PH value is adjusted to 3, and battery lead plate spacing is 6.0cm, and Faradaic current is 5.5A, and ultrasonic power is 200W, and frequency is 60kHz, by oxidant inlet 3, adds potassium ferrate (5.0g/L), processes 30min, from liquid outlet 4, discharges.
After the processing of the utility model coupled reactor, the COD value of fracturing outlet liquid is down to 1000mg/L by the 4020mg/L of stoste, and COD clearance is 75.1%.Meanwhile, oleaginousness is almost 0mg/L, and suspended solid is 15mg/L, all lower than the limit value of stipulating in national secondary discharge standard.
Therefore, the utility model art can efficiently be removed the objectionable constituent such as fracturing outlet liquid petroleum class, suspended solid and organic pollutant, has industrial applications prospect.
Claims (3)
1. three-diemsnional electrode-ultrasonic-oxidation coupling reactor, is characterized in that:
Described coupled reactor comprises an electrolyzer; In described electrolyzer, be provided with anode, negative electrode and third electrode;
Described anode is inert composite electrode, and described negative electrode is active electrode, and described third electrode is activated carbon electrodes;
Described electrolyzer is provided with fluid inlet, oxidant inlet and liquid outlet;
Described electrolyzer is connected with a ultrasonic source.
2. coupled reactor according to claim 1, is characterized in that: the spacing between described anode and described negative electrode is 1～6cm.
3. coupled reactor according to claim 1 and 2, is characterized in that: described fluid inlet, described oxidant inlet and described liquid outlet are all located at the top of described electrolyzer.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320697290.0U CN203545827U (en) | 2013-11-06 | 2013-11-06 | Three-dimensional electrode-ultrasonic-oxidative coupling reactor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320697290.0U CN203545827U (en) | 2013-11-06 | 2013-11-06 | Three-dimensional electrode-ultrasonic-oxidative coupling reactor |
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| Publication Number | Publication Date |
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| CN203545827U true CN203545827U (en) | 2014-04-16 |
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| CN201320697290.0U Expired - Lifetime CN203545827U (en) | 2013-11-06 | 2013-11-06 | Three-dimensional electrode-ultrasonic-oxidative coupling reactor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108928890A (en) * | 2018-08-20 | 2018-12-04 | 四川大学 | A kind of method of three-diemsnional electrode coupling oxidizer treatment used water difficult to degradate |
-
2013
- 2013-11-06 CN CN201320697290.0U patent/CN203545827U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108928890A (en) * | 2018-08-20 | 2018-12-04 | 四川大学 | A kind of method of three-diemsnional electrode coupling oxidizer treatment used water difficult to degradate |
| CN108928890B (en) * | 2018-08-20 | 2021-12-17 | 四川大学 | Method for treating refractory wastewater by three-dimensional electrode coupling oxidant |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Co-patentee after: CNOOC RESEARCH INSTITUTE Co.,Ltd. Patentee after: CHINA NATIONAL OFFSHORE OIL Corp. Address before: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Co-patentee before: CNOOC Research Institute Patentee before: CHINA NATIONAL OFFSHORE OIL Corp. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140416 |
|
| CX01 | Expiry of patent term |