CN203820581U - High-concentration coking desulfurization waste liquid treatment device - Google Patents
High-concentration coking desulfurization waste liquid treatment device Download PDFInfo
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- CN203820581U CN203820581U CN201420083468.7U CN201420083468U CN203820581U CN 203820581 U CN203820581 U CN 203820581U CN 201420083468 U CN201420083468 U CN 201420083468U CN 203820581 U CN203820581 U CN 203820581U
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- preheater
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Abstract
The utility model discloses a high-concentration coking desulfurization waste liquid treatment device which comprises a first waste liquid preheater, wherein the first waste liquid preheater is connected with a waste liquid storage tank and a second waste liquid preheater; the second waste liquid preheater is connected with a gas-liquid mixing chamber; the gas-liquid mixing chamber is connected with a gas preheater; the gas preheater is connected with an air compressor; the air compressor is connected with an air storage tank; the gas-liquid mixing chamber is connected with a supercritical quick catalytic oxidation reactor; the supercritical quick catalytic oxidation reactor is connected with a heat exchanger; the heat exchanger is connected with a gas-liquid separator; the gas-liquid separator is connected with an exhausted gas storage tank. The device is convenient to operate, quick in response, low in operating cost and free of secondary pollution, and a catalyst can be recycled.
Description
Technical field
The utility model belongs to technical field of sewage, is specifically related to a kind of high density coking desulfurization waste liquor treatment unit.
Background technology
Along with the large-scale intensivization development of Iron and Steel Production, heat recovery and the technical development of used water difficult to degradate multi-pollutant Collaborative Control seem very important in process of production.China is coke production and consumption big country, especially in coke production capacity in recent years, obtains fast development.Within 2007, coke output is 33,554 ten thousand tons, accounts for 60% of global coke ultimate production.The a large amount of coking chemical waste waters that produce in coking, gas purification and coke chemicals removal process, complicated component not only, component is of a great variety, and different according to ature of coal, technique, and there is very big difference in the water quality of each coal chemical enterprise.
The waste water that in coking production, coal produces in high temperature carbonization, gas purification and Chemicals treating process, be mainly derived from remained ammonia, crude benzol Separation of Water, whole cold water more than needed, tar separation water four parts, the feature of these waste water is that concentration is high, temperature is high, pollutent forms complexity, toxicity is large, particularly coking high density coking desulfurization waste liquor, contains a large amount of phenol, polycyclic aromatic hydrocarbons and nitrogenous oxygen helerocyclics, NH
3-N, CN
-, S
2-and SCN
-deng pollutent, the colourity that these pollutents form is high, and the form with true solution or accurate colloid in water exists, and character is highly stable, chemical oxygen demand (COD) (COD) and color removal difficulty.
High density coking desulfurization waste liquor enters the unsteady running that existing Waste Water Treatment will cause system, make existing treatment process qualified discharge difficulty, at present, all adopt the method for advanced oxidation to process high density coking desulfurization waste liquor both at home and abroad, conventional Fenton agent treated method is removed the organism such as COD and ammonia nitrogen in high density coking desulfurization waste liquor, the iron mud that reaction produces can form secondary pollution, and catalyzer is difficult to reclaim, H
2o
2equipment is also had to very strong corrodibility, and complicated operation and working cost are also high; In combined with ozone oxidation technology, only, when reaction conditions is acidity, ozone is only main oxygenant, reaction process always needs the strict pH of control, and this method combination process complicated operation, reaction time consumption is long, neither be very high to organic removal rates such as COD and ammonia nitrogens.
Supercritical water oxidation method SCWO (Supercritical Water Oxidation) is the wet oxidation reaction carrying out under supercritical water state.Due to the peculiar property that supercritical water has, supercritical water oxidation method can be introduced fully oxygen and participate in reaction, does not have the problems such as substance transfer between gas liquid film.In supercritical water oxidation method, adding suitable catalyzer, can improve processing efficiency and processing capacity, reach the object of efficient energy-saving, is a kind of method of new and effective processing high density coking desulfurization waste liquor.
High density coking desulfurization waste liquor has higher low-quality waste heat in liquid waste disposal, to recycle, and also there is no at present the report about heat recovery this respect.High density coking desulfurization waste liquor has that pollutant kind is many, the feature of difficult degradation, by supercritical water oxidation catalysis fast response technology, in conjunction with UTILIZATION OF VESIDUAL HEAT IN with oxidation treated high concentration coking desulfurization waste liquor thoroughly rapidly, both made heat resources unnecessary in actual production obtain utilization, and also realized the organic fast degradation such as COD and ammonia nitrogen in high density coking desulfurization waste liquor and removed.But high density coking desulfurization waste liquor is in conjunction with the technology of waste heat, in the prior art without any report.
Utility model content
The purpose of this utility model be for address the above problem provide a kind of easy to operate, be swift in response, running cost expense is low, the high density coking desulfurization waste liquor treatment unit of non-secondary pollution, the recyclable recycling of catalyzer and heat resources recycle.
The technical scheme that the utility model adopts is:
A kind of high density coking desulfurization waste liquor treatment unit, comprise waste liquid the first preheater, described waste liquid the first preheater is connected with waste liquid the second preheater with waste tank, described waste liquid the second preheater is connected with gas-liquid mixed chamber, described gas-liquid mixed chamber is connected with gas preheater, described gas preheater is connected with air compressor, described air compressor is connected with air accumulator, described gas-liquid mixed chamber is connected with overcritical quick catalysis oxidation reactor, described overcritical quick catalysis oxidation reactor is connected with interchanger, described interchanger is connected with gas-liquid separator, described gas-liquid separator is connected with exhaust storage tank.
Further, between described waste liquid the first preheater and waste liquid the second preheater, high-pressure pump is installed.
Further, on the pipeline being connected between described interchanger and gas-liquid separator, be provided with sampling point.
Further, on described waste liquid the second preheater, gas preheater and overcritical quick catalysis oxidation reactor, temperature control table and pressure-controlling table are installed.
Further, described waste liquid the first preheater, waste liquid the second preheater, gas preheater, on gas-liquid mixed chamber and overcritical quick catalysis oxidation reactor, wrap up lagging material, the pipeline being connected between waste liquid the first preheater and waste liquid the second preheater, the pipeline being connected between waste liquid the second preheater and gas-liquid mixed chamber, the pipeline being connected between gas preheater and gas-liquid mixed chamber, the pipeline being connected between gas-liquid mixed chamber and overcritical quick catalysis oxidation reactor, on the pipeline being connected between interchanger and waste liquid the first preheater, wrap up lagging material.
The utlity model has following advantage:
(1) the utility model uses coking waste heat to preheat high density coking desulfurization waste liquor, improves the feed liquor temperature of overcritical quick catalysis oxidation reactor, has saved processing cost.
(2) oxygenant that the utility model adopts is airborne oxygen, and oxidizing reaction occurs rapidly in overcritical quick catalysis oxidation reactor, and the phenol in degrading high concentration coking desulfurization waste liquor, polycyclic aromatic hydrocarbons and nitrogenous oxygen helerocyclics, be converted into harmless N
2, CO
2, H
2o and micromolecular compound, speed of response is fast, product non-secondary pollution.
(3) the utility model employing catalyzer is nano-metal-oxide, is specially nano-titanium aluminium mixture, dipping manganese nitrate aqueous solution, and drying and roasting makes, and catalyst stability is good, is easy to recycling.
(4) the utility model technical process is simple, easy to operate, and in reactor, pressure, temperature etc. are controlled by integrated electric and pressure system, can degrade rapidly and remove the organism of high density coking desulfurization waste liquor, to COD in coking desulfurization waste liquor and NH
3the clearance of-N can reach more than 97%.
The utility model utilizes supercritical Water Oxidation Technology, the organic contamination substrate concentration that has for the high-concentration waste water of coking waste heat is high, kind is many, toxicity is large, be difficult to the features such as degraded and waste heat do not utilize, and for hardly degraded organic substance in the high density coking desulfurization waste liquor of coking waste heat, has good removal effect.Process COD and NH later
3-N concentration all can reach discharging standards, and technique is simple, easy to operate, be swift in response, running cost expense is low, non-secondary pollution, the recyclable recycling of catalyzer and heat resources recycle.
Accompanying drawing explanation
The structural representation of the high density coking desulfurization waste liquor treatment unit that Fig. 1 provides for the utility model embodiment.
Embodiment
Below in conjunction with drawings and embodiments, the utility model is described in more detail.
The present embodiment provides a kind of high density coking desulfurization waste liquor treatment unit, comprises waste liquid the first preheater 4.Waste liquid the first preheater 4 is connected with waste liquid the second preheater 13 with waste tank 3, between waste liquid the first preheater 4 and waste liquid the second preheater 13, high-pressure pump 5 is installed.Waste liquid the second preheater 13 is connected with gas-liquid mixed chamber 14, and gas-liquid mixed chamber 14 is connected with gas preheater 15.Gas preheater 15 is connected with air compressor 1.Air compressor 1 is connected with air accumulator 2.Gas-liquid mixed chamber 14 is connected with overcritical quick catalysis oxidation reactor 12.Overcritical quick catalysis oxidation reactor 12 is connected with interchanger 9.Interchanger 9 is connected with gas-liquid separator 7, and gas-liquid separator 7 is connected with exhaust storage tank 8.On the pipeline being connected between interchanger 9 and gas-liquid separator 7, be provided with sampling point 6.On waste liquid the second preheater 13, gas preheater 15 and overcritical quick catalysis oxidation reactor 12, temperature control table 10 and pressure-controlling table 11 are installed.Waste liquid the first preheater 4, waste liquid the second preheater 13, gas preheater 15, on gas-liquid mixed chamber 14 and overcritical quick catalysis oxidation reactor 12, wrap up lagging material, the pipeline being connected between waste liquid the first preheater 4 and waste liquid the second preheater 13, the pipeline being connected between waste liquid the second preheater 13 and gas-liquid mixed chamber 14, the pipeline being connected between gas preheater 15 and gas-liquid mixed chamber 14, the pipeline being connected between gas-liquid mixed chamber 14 and overcritical quick catalysis oxidation reactor 12, on the pipeline being connected between interchanger 9 and waste liquid the first preheater 4, wrap up lagging material.
This device can carry out catalytic treatment to high density coking desulfurization waste liquor, the steps include:
(1) preheating of high density coking desulfurization waste liquor and oxygen: the high density coking desulfurization waste liquor in waste tank 3 is injected in waste liquid the first preheater 4, utilize coking waste heat, by the temperature increase to 80 ℃ of high density coking desulfurization waste liquor, subsequently the high density coking desulfurization waste liquor after heating up is injected to waste liquid the second preheater 13 through high-pressure pump 5; Air in air accumulator 2 inputs in gas preheater 15 through air compressor 1; High density coking desulfurization waste liquor and air are mixed to form gas-liquid mixture after preheating respectively in gas-liquid mixed chamber 14.
(2) overcritical quick catalysis oxidizing reaction is processed: catalyzer is put into overcritical quick catalysis oxidation reactor 12, then gas-liquid mixture is passed in overcritical quick catalysis oxidation reactor 12, make coking desulfurization waste liquor generation quick catalysis oxidizing reaction; In overcritical quick catalysis oxidation reaction process, the pressure in overcritical quick catalysis oxidation reactor 12 is 30MPa, and temperature is 200 ℃, and the residence time is 0.1min.Catalyzer is nano-metal-oxide, and nano-metal-oxide is that after nano-titanium aluminium mixture and dipping manganese nitrate solution mix, drying and roasting makes, and the using dosage of catalyzer is 10mg/L.The injection rate of the air of air accumulator 3, meter in mass ratio, injection rate is 5 times of chemical oxygen demand (COD) that enter the high density coking desulfurization waste liquor of overcritical quick catalysis oxidation reactor 12.
(3) heat exchange of coking desulfurization waste liquor and gas-liquid separation are processed: by process the gas-liquid mixture producing later through overcritical quick catalysis oxidation reactor 12, pass into and in interchanger 9, carry out heat exchange, the temperature of gas-liquid mixture is down to below 25 ℃, gas-liquid mixture after cooling passes in gas-liquid separator 7 after decompression, after gas-liquid separation, liquid enters blowoff basin, and gas enters exhaust storage tank 8.The gas-liquid mixture of the treated generation of high density coking desulfurization waste liquor is through interchanger 9 heat exchange, and the residual heat recovery displacing arrives in waste liquid the first preheater 4 in step (1).
The utility model technical process is simple, easy to operate, and in reactor, pressure, temperature etc. are controlled by integrated electric and pressure system, can degrade rapidly and remove the organism of high density coking desulfurization waste liquor, to COD in coking desulfurization waste liquor and NH
3the clearance of-N can reach more than 97%.
The utility model utilizes supercritical Water Oxidation Technology, the organic contamination substrate concentration that has for the high-concentration waste water of coking waste heat is high, kind is many, toxicity is large, be difficult to the features such as degraded and waste heat do not utilize, and for hardly degraded organic substance in the high density coking desulfurization waste liquor of coking waste heat, has good removal effect.Process COD and NH later
3-N concentration all can reach discharging standards, and technique is simple, easy to operate, be swift in response, running cost expense is low, non-secondary pollution, the recyclable recycling of catalyzer and heat resources recycle.
It should be noted last that, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement the technical solution of the utility model, and not departing from the spirit and scope of technical solutions of the utility model, it all should be encompassed in the middle of claim scope of the present utility model.
Claims (5)
1. a high density coking desulfurization waste liquor treatment unit, it is characterized in that, comprise waste liquid the first preheater, described waste liquid the first preheater is connected with waste liquid the second preheater with waste tank, described waste liquid the second preheater is connected with gas-liquid mixed chamber, described gas-liquid mixed chamber is connected with gas preheater, described gas preheater is connected with air compressor, described air compressor is connected with air accumulator, described gas-liquid mixed chamber is connected with overcritical quick catalysis oxidation reactor, described overcritical quick catalysis oxidation reactor is connected with interchanger, described interchanger is connected with gas-liquid separator, described gas-liquid separator is connected with exhaust storage tank.
2. high density coking desulfurization waste liquor treatment unit according to claim 1, is characterized in that, between described waste liquid the first preheater and waste liquid the second preheater, high-pressure pump is installed.
3. high density coking desulfurization waste liquor treatment unit according to claim 1, is characterized in that, on the pipeline being connected, is provided with sampling point between described interchanger and gas-liquid separator.
4. high density coking desulfurization waste liquor treatment unit according to claim 1, is characterized in that, on described waste liquid the second preheater, gas preheater and overcritical quick catalysis oxidation reactor, temperature control table and pressure-controlling table is installed.
5. high density coking desulfurization waste liquor treatment unit according to claim 1, it is characterized in that, described waste liquid the first preheater, waste liquid the second preheater, gas preheater, on gas-liquid mixed chamber and overcritical quick catalysis oxidation reactor, wrap up lagging material, the pipeline being connected between waste liquid the first preheater and waste liquid the second preheater, the pipeline being connected between waste liquid the second preheater and gas-liquid mixed chamber, the pipeline being connected between gas preheater and gas-liquid mixed chamber, the pipeline being connected between gas-liquid mixed chamber and overcritical quick catalysis oxidation reactor, on the pipeline being connected between interchanger and waste liquid the first preheater, wrap up lagging material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420083468.7U CN203820581U (en) | 2014-02-26 | 2014-02-26 | High-concentration coking desulfurization waste liquid treatment device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420083468.7U CN203820581U (en) | 2014-02-26 | 2014-02-26 | High-concentration coking desulfurization waste liquid treatment device |
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| CN203820581U true CN203820581U (en) | 2014-09-10 |
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| CN201420083468.7U Expired - Fee Related CN203820581U (en) | 2014-02-26 | 2014-02-26 | High-concentration coking desulfurization waste liquid treatment device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103819039A (en) * | 2014-02-26 | 2014-05-28 | 武汉科技大学 | High-concentration coking desulphurization waste liquid treating apparatus and method for catalytic treatment of high-concentration coking desulphurization waste liquid by using waste heat of coking |
| CN106006919A (en) * | 2016-07-19 | 2016-10-12 | 苏州英瑞特环保科技有限公司 | Supercritical water treatment equipment |
| CN107055470A (en) * | 2017-03-10 | 2017-08-18 | 同济大学 | A kind of hot utilization system of liquid organic hydrogen storage carrier reactor |
| CN112624478A (en) * | 2020-12-30 | 2021-04-09 | 济南工程职业技术学院 | Method for efficiently treating wastewater |
-
2014
- 2014-02-26 CN CN201420083468.7U patent/CN203820581U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103819039A (en) * | 2014-02-26 | 2014-05-28 | 武汉科技大学 | High-concentration coking desulphurization waste liquid treating apparatus and method for catalytic treatment of high-concentration coking desulphurization waste liquid by using waste heat of coking |
| CN106006919A (en) * | 2016-07-19 | 2016-10-12 | 苏州英瑞特环保科技有限公司 | Supercritical water treatment equipment |
| CN107055470A (en) * | 2017-03-10 | 2017-08-18 | 同济大学 | A kind of hot utilization system of liquid organic hydrogen storage carrier reactor |
| CN112624478A (en) * | 2020-12-30 | 2021-04-09 | 济南工程职业技术学院 | Method for efficiently treating wastewater |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140910 Termination date: 20180226 |