CN203955009U - A kind of device that utilizes supercritical Water Oxidation Technology to process continuously waste gas - Google Patents
A kind of device that utilizes supercritical Water Oxidation Technology to process continuously waste gas Download PDFInfo
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- CN203955009U CN203955009U CN201420371654.0U CN201420371654U CN203955009U CN 203955009 U CN203955009 U CN 203955009U CN 201420371654 U CN201420371654 U CN 201420371654U CN 203955009 U CN203955009 U CN 203955009U
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Abstract
The utility model discloses a kind of device that utilizes supercritical Water Oxidation Technology to process continuously waste gas, comprise compressor, oxidant memory, blending bin, supercritical water generator and byproduct recover, the oxidant inlet of described compressor is connected with the outlet of oxidant memory, the supercritical water entrance of blending bin and gas access are connected with the outlet of supercritical water generator and the outlet of compressor respectively, and the outlet of blending bin is connected with the entrance of byproduct recover.The utility model can fast processing high concentration industrial waste gas, treatment effeciency is high.
Description
Technical field
The utility model belongs to industrial waste gas process field, relates to a kind of device of continuous processing waste gas, is specifically related to a kind of device that utilizes supercritical Water Oxidation Technology to process continuously waste gas.
Background technology
Supercritical water oxidation (SuperCritical Water Oxidation, being called for short SCWO) technology is with supercritical water (temperature > 374, pressure > 22.1MPa) be medium, utilize and under super critical condition, do not exist gas-liquid interface resistance to mass tranfer to improve reaction rate, and under homogeneous phase condition, make a kind of emerging technology of organic matter exhaustive oxidation with pure oxygen.With burning, catalytic wet oxidation compares, supercritical water oxidation has that pollutant complete oxidation, secondary pollution are little, equipment and the advantage such as operating cost is relatively low.
Water under supercriticality has the character of liquid and vaporous water concurrently, the characteristics such as it can continually varying density, low electrostatic media constant, low viscosity make supercritical water become a kind of ideal response medium with high diffusivity, highly dissoluble, can utilize the variation of temperature and pressure to control reaction environment, concerted reaction speed and chemical balance, regulate the selection activity etc. of catalyst, also can pass through the dependence of different material solubility to supercritical fluid, realization response completes with being separated in same reactor.For in enterprise's on-site fuel combustion and production process, produce various enter air contain contaminant gases etc., as: carbon dioxide, carbon disulfide, hydrogen sulfide, fluoride, nitrogen oxide, chlorine, hydrogen chloride, carbon monoxide, sulfuric acid (mist), volatilization benzene and aromatic hydrocarbons, beryllide, flue dust and industrial dust, if enter atmosphere, meeting contaminated air, simultaneously serious harm people's health.Adopt supercritical water oxidation processing, can effectively remove the harmful substance in industrial waste gas.
At present mainly take burning method (patent 201210023570.3), charcoal absorption (patent 201310270874.4), wet air oxidation (patent for the processing of industrial waste gas
200710068312.6), photochemical oxidation and photochemical catalytic oxidation (patent 201280006489.2,201280005310.1), the method such as electrochemical oxidation (patent 201310071665.7), these traditional processing method efficiency are lower, especially be difficult to reach national grade one discharge standard for high-concentration industrial waste gas, residue after some PROCESS FOR TREATMENT is still pollutant or danger, need do further processing could discharge, and therefore the new technology and method of industrial waste gas processing is needed further to be researched and developed.Correlative study shows, supercritical water oxidation is the effective way of processing at present industrial waste gas.In (374 DEG C of its critical points, 22.1MPa) above high temperature, the water of high pressure conditions are called as supercritical water (SCW), water with this understanding had both had the diffusion coefficient suitable with gas (than the high 10-100 of general liquid doubly) and lower viscosity, had again the density close with liquid and the solvability good to material.SCW and apolar substance can dissolve each other completely as organic matters such as hydro carbons, pentane, hexane, benzene and toluene, oxygen, nitrogen, CO, CO
2also can be dissolved in supercritical water with arbitrary proportion Deng gas.Just because of the solvation characteristic of SCW, become the perfect medium of oxidation operation, taking supercritical water as carrier, the oxidants such as debirs and air, oxygen are carried out to oxidation reaction in supercritical water and by its removal.Supercritical water oxidation is the homogeneous reaction of carrying out under high temperature, high pressure, reaction rate is fast (can be less than 1min) very, process thoroughly, organic matter is completely oxidized to the nontoxic micromolecular compounds such as carbon dioxide, water, nitrogen and salt, do not form secondary pollution, and inorganic salts can separate from water, treatment effeciency can reach more than 99.99%, can reach national grade one discharge standard completely, realize directly discharge or recycle.In addition, in the time that organic matter quality mark exceedes 2%, supercritical water oxidation process can form self-heating and not need additionally to supply with heat.These characteristics make to show unique advantage compared with the supercritical Water Oxidation Technology wastewater processing technology traditional with biochemical treatment process, wet air oxidation and combustion method etc., become a kind of environment protection novel with very large potential advantages.
China recent years has also been carried out the research of supercritical water oxidation and has been formed some Patents organic wastewaters such as alcohols, phenols, benzene class, nitrogenous and sulfur-bearings, as a kind of method (201210592563.5) of supercritical water oxidation processing carbonaceous organic material, a kind of supercritical water oxidation is processed the method (201110285736.4) of ethylene waste lye etc.These researchs have obtained satisfied effect, but mostly in bench scale, batch reactor is in the majority, can not process continuously, and pilot-plant and industrialization operation are only also blank.
Utility model content
The purpose of this utility model is to overcome the shortcoming of above-mentioned prior art, and a kind of device that utilizes supercritical Water Oxidation Technology to process continuously waste gas is provided, the industrial waste gas of this device fast processing high concentration, and treatment effeciency is high.
For achieving the above object, the device that utilizes supercritical Water Oxidation Technology to process continuously waste gas described in the utility model, it is characterized in that, comprise compressor, oxidant memory, blending bin, supercritical water generator and byproduct recover, the oxidant inlet of described compressor is connected with the outlet of oxidant memory, the supercritical water entrance of blending bin and gas access are connected with the outlet of supercritical water generator and the outlet of compressor respectively, and the outlet of blending bin is connected with the entrance of byproduct recover.
The outlet of described blending bin is connected by the first valve with the entrance of byproduct recover.
The outlet of described compressor is connected by the second valve with the gas access of blending bin.
The supercritical water entrance of described blending bin is connected by the 3rd valve with the outlet of supercritical water generator.
Described byproduct recover comprises counterbalance valve, pressure alarm, condenser and gas-liquid separator, the entrance of counterbalance valve is connected with the outlet of the first valve, the outlet of counterbalance valve is connected with the gas access of the entrance of condenser and pressure alarm, and the outlet of condenser is connected with the entrance of gas-liquid separator.
The utlity model has following beneficial effect:
Described in the utility modelly describedly utilize device that supercritical Water Oxidation Technology processes waste gas continuously in to the process of industrial waste gas processing, first by compressor, oxidant and industrial waste gas are boosted and heated up, then the oxidant after boosting and heating up and industrial waste gas are reacted in blending bin with supercritical water, finally more reacted product is reclaimed by byproduct recover, thereby realize the fast processing to high-concentration industrial waste gas, treatment effeciency is high.The utility model can be realized the complete oxidation to every pollutant in industrial waste gas, and secondary pollution is little, and equipment and operating cost reduce, and is applicable to the high-concentration industrial waste gas of the discharges such as disposal of refuse burning electricity generation factory, chemical plant, printing and dyeing mill and pharmaceutical factory.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Wherein, 1 is that oxidant memory, 2 is that industrial waste gas, 3 is that compressor, 4 is that blending bin, 5 is that supercritical water generator, 6 is that byproduct recover, 7 is that the first valve, 8 is that the second valve, 9 is the 3rd valve.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail:
With reference to figure 1, the device that utilizes supercritical Water Oxidation Technology to process continuously waste gas described in the utility model comprises compressor 3, oxidant memory 1, blending bin 4, supercritical water generator 5 and byproduct recover 6, the oxidant inlet of described compressor 3 is connected with the outlet of oxidant memory 1, the supercritical water entrance of blending bin 4 and gas access are connected with the outlet of supercritical water generator 5 and the outlet of compressor 3 respectively, and the outlet of blending bin 4 is connected with the entrance of byproduct recover 6.
It should be noted that, the outlet of described blending bin 4 is connected by the first valve 7 with the entrance of byproduct recover 6, the outlet of compressor 3 is connected by the second valve 8 with the gas access of blending bin 4, the supercritical water entrance of blending bin 4 is connected by the 3rd valve 9 with the outlet of supercritical water generator 5, described byproduct recover 6 comprises counterbalance valve, pressure alarm, condenser and gas-liquid separator, the entrance of counterbalance valve is connected with the outlet of the first valve 7, the outlet of counterbalance valve is connected with the gas access of the entrance of condenser and pressure alarm, the outlet of condenser is connected with the entrance of gas-liquid separator.
Specific works process of the present utility model is:
The oxidant that industrial waste gas 2 and oxidant memory 1 are exported pressure after compressor 3 compressions are processed rises to 5-8MPa, temperature rises to 100-200 DEG C, then will be input in blending bin 4 through compressor 3 industrial waste gas 2 after treatment and oxidant, supercritical water generator 5 produces supercritical water simultaneously, and described supercritical water is input in blending bin 4, industrial waste gas 2, oxidant and supercritical water are in the interior reaction of blending bin 4, after completing, its reaction is passed in byproduct recover 6, byproduct recover 6 reclaims industrial waste gas 2, the product of oxidant and supercritical water reaction.
The temperature of described blending bin 4 interior gases is 380-500 DEG C, and air pressure is 23-30MPa.
Described oxidant is O
2or O
3, the molal weight of oxidant be industrial waste gas 2 complete oxidation requisite oxygen agents molal weight 2-6 doubly.
Described industrial waste gas 2, oxidant and supercritical water are 10-100 second in the reaction time of blending bin 4 interior reactions.
Embodiment mono-
First the high-concentration industrial waste gas 2 that comprises Polychlorinated biphenyls, NH3 and CO is boosted to 5MPa through compressor 3, be warming up to 120 DEG C, wherein, the O that oxidant memory 1 is exported
3molal weight is 6 times of molal weight of industrial waste gas 2 complete oxidation requisite oxygen agents, the second valve 8 and the 3rd valve 9 is set and within every 3 minutes, opens once, and the opening time is 10 seconds.
Open in advance supercritical water generator 5, and parameters is 650 DEG C/30MPa, to be disposed in blending bin 4 through the synchronic gas of the second valve 8 and the 3rd valve 9, and finally form the supercritical fluid of approximately 400 DEG C/25MPa, and it is reacted 20 seconds in blending bin 4, and then open the first valve 7, reacted product is input in byproduct recover 6 and is reclaimed, wherein, the isolated innocuous gas CO of byproduct recover 6
2, N
2directly get rid of Deng by separator top, liquid product is recycled.
Embodiment bis-
What burning power plant was produced comprises Polychlorinated biphenyls, NH3 and SO
2industrial waste gas 2 and the oxidant O that exports of oxidant memory 1
3be forced into 5MPa through compressor 3, be warming up to 100 DEG C, wherein, O
3molal weight is 5 times of molal weight of industrial waste gas 2 complete oxidation requisite oxygen agents, the second valve 8 (11) and the 3rd valve 9 is set and within every 3 minutes, opens once, and the opening time is 5 seconds.
Open in advance supercritical water generator 5, and parameters is 700 DEG C/30MPa, to be disposed in blending bin 4 (25) with the synchronic gas of the 3rd valve 9 (22) through valve the second valve 8 (11), and finally form the supercritical fluid of approximately 420 DEG C/26MPa, react after 50 seconds, open the first valve 7, then reacted product is reclaimed by byproduct recover 6, wherein, the isolated innocuous gas CO of byproduct recover 6
2, N
2directly get rid of Deng by separator top, liquid S and Cl product are recycled.
Claims (5)
1. a device that utilizes supercritical Water Oxidation Technology to process continuously waste gas, it is characterized in that, comprise compressor (3), oxidant memory (1), blending bin (4), supercritical water generator (5) and byproduct recover (6), the oxidant inlet of described compressor (3) is connected with the outlet of oxidant memory (1), the supercritical water entrance of blending bin (4) and gas access are connected with the outlet of supercritical water generator (5) and the outlet of compressor (3) respectively, the outlet of blending bin (4) is connected with the entrance of byproduct recover (6).
2. the device that utilizes supercritical Water Oxidation Technology to process continuously waste gas according to claim 1, it is characterized in that, the outlet of described blending bin (4) is connected by the first valve (7) with the entrance of byproduct recover (6).
3. the device that utilizes supercritical Water Oxidation Technology to process continuously waste gas according to claim 2, it is characterized in that, the outlet of described compressor (3) is connected by the second valve (8) with the gas access of blending bin (4).
4. the device that utilizes supercritical Water Oxidation Technology to process continuously waste gas according to claim 3, it is characterized in that, the supercritical water entrance of described blending bin (4) is connected by the 3rd valve (9) with the outlet of supercritical water generator (5).
5. the device that utilizes supercritical Water Oxidation Technology to process continuously waste gas according to claim 2, it is characterized in that, described byproduct recover (6) comprises counterbalance valve, pressure alarm, condenser and gas-liquid separator, the entrance of counterbalance valve is connected with the outlet of the first valve (7), the outlet of counterbalance valve is connected with the gas access of the entrance of condenser and pressure alarm, and the outlet of condenser is connected with the entrance of gas-liquid separator.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420371654.0U CN203955009U (en) | 2014-07-07 | 2014-07-07 | A kind of device that utilizes supercritical Water Oxidation Technology to process continuously waste gas |
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|---|---|---|---|
| CN201420371654.0U CN203955009U (en) | 2014-07-07 | 2014-07-07 | A kind of device that utilizes supercritical Water Oxidation Technology to process continuously waste gas |
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| CN203955009U true CN203955009U (en) | 2014-11-26 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104107624A (en) * | 2014-07-07 | 2014-10-22 | 西安热工研究院有限公司 | Device and method for continuously treating waste gas by utilizing supercritical water oxidation technique |
| CN109304079A (en) * | 2018-10-07 | 2019-02-05 | 山东众瑞新材料科技有限公司 | The recyclable device and method of tail gas for rubber accelerator M |
-
2014
- 2014-07-07 CN CN201420371654.0U patent/CN203955009U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104107624A (en) * | 2014-07-07 | 2014-10-22 | 西安热工研究院有限公司 | Device and method for continuously treating waste gas by utilizing supercritical water oxidation technique |
| CN109304079A (en) * | 2018-10-07 | 2019-02-05 | 山东众瑞新材料科技有限公司 | The recyclable device and method of tail gas for rubber accelerator M |
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