CN207998481U - A kind of supercritical water oxidation treatment system - Google Patents
A kind of supercritical water oxidation treatment system Download PDFInfo
- Publication number
- CN207998481U CN207998481U CN201820112074.8U CN201820112074U CN207998481U CN 207998481 U CN207998481 U CN 207998481U CN 201820112074 U CN201820112074 U CN 201820112074U CN 207998481 U CN207998481 U CN 207998481U
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- oxygen
- supercritical water
- waste
- water oxidation
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Abstract
The utility model discloses a kind of supercritical water oxidation treatment systems, including supercritical water oxidation device, oxygen feedway, organic liquid waste feedway and energy recycle device;Using oxygen feedway, the lasting high-purity oxygen in scene is directly used as oxidant from air, avoid the high cost that transport oxygen bottle is brought, the shortcomings that high risk, the high-purity nitrogen that can also prepare simultaneously carries out sale and brings income, the Btu utilization that will be generated in reaction process using energy recycle device, avoid the waste of the energy, simultaneously by gas-liquid separator and rectifying column by after reaction oxygen and carbon dioxide recycle and reuse, realize system recycles mechanism, this system recycles the thermal energy of reaction product with pressure energy, reduce system energy consumption, and realize oxygen in reaction product, the separation and recovery of carbon dioxide, this system can significantly reduce the operating cost of supercritical water oxidation system processing organic liquid waste.
Description
Technical field
The utility model is related to debirs process fields, specifically, the utility model is more particularly to a kind of overcritical
Water oxidization processing system.
Background technology
Supercritical water oxidation (Supercritical Water Oxidation, SCWO) is in the critical point (P more than waterc
=22.1MPa, Tc=374.15 DEG C) high-temperature and high-pressure conditions under, the method that is aoxidized organic matter " burning " by oxidant.It should
Unique physico-chemical property that technology has using supercritical water (for example viscosity is small, diffusion coefficient is high, surface tension is small etc.), it is fast
Speed by oxidation operation at CO2,H2O,N2Etc. nontoxic product, due to the high efficiency of the technology, spatter property, by the country
The extensive concern of outer scholar.
Supercritical water oxidation carries out in the environment of closing, and non-secondary pollution object generates, it is considered to be before most having
The waste treatment technique on way, organic matter of the supercritical Water Oxidation Technology commonly used to processing high-concentration hardly-degradable, these organic matters
In COD very high (generally in 20000mg/L to 400000mg/L), COD contains a large amount of chemical energy, and (calorific value of unit COD is about
For 14.8kJ/g), a large amount of thermal energy is discharged when with oxidant reaction, therefore, the product after supercritical water oxidation has
Very high thermal energy and pressure energy.It is at supercritical water oxidation system to hinder one of the factor that the technology is widely applied at present
It is higher to manage organic liquid waste operating cost.In supercritical water oxidation technique, pending organic liquid waste and oxidant need to heat
It is pressurized to supercriticality, which needs to consume a large amount of electric energy, causes institute's power consumption expense higher.In supercritical water oxidation system
In operational process, currently used oxidant generally has hydrogen peroxide, ozone, air, oxygen etc., wherein oxygen is selected to make oxidant
Economy it is best, and plenum system when oxygen being selected to serve as oxidant commonly uses high pressure tank to realize, due to gas at present
Body tank volume is limited often to cannot achieve the continual gas supply of long-time, and operating personnel often have part in more scavenging air receiver
Gas leaks, and causes to waste, while also bringing along security risk.
Utility model content
The purpose of this utility model is to provide a kind of supercritical water oxidation treatment systems, to overcome the prior art not
Foot.
In order to achieve the above objectives, the utility model adopts the following technical solution:
A kind of supercritical water oxidation treatment system, including supercritical water oxidation device, oxygen feedway, organic waste
Liquid supplying device and energy recycle device;
Supercritical water oxidation device includes overcritical water oxidization reactor;The outlet of overcritical water oxidization reactor connects
It is connected to high-pressure hydraulic cyclone;
Oxygen feedway includes sequentially connected air compressor, the first drier, filter, membrane separator, nitrogen
Absorber and oxygen surge tank, the gas that oxygen surge tank is connected to overcritical water oxidization reactor by oxygen booster pump enter
Mouthful, the oxygen outlet of membrane separator is connect with nitrogen adsorption device entrance;
Organic liquid waste feedway includes waste tank and waste liquid booster pump, and waste liquid booster pump liquid-transport pipe-line is equipped with electricity and adds
Hot device, the waste liquid in waste tank are delivered to by waste liquid booster pump in the inlet of overcritical water oxidization reactor;
Energy recycle device includes that the heat exchanger being connect with high-pressure hydraulic cyclone and the turbine being connect with heat exchanger are swollen
Swollen machine, turbo-expander are connected with generator;
The exhaust outlet of turbo-expander is connected with gas-liquid separator by the first counterbalance valve, the exhaust outlet of gas-liquid separator according to
Secondary to be connected with the second drier, compressor, condenser and rectifying column, the CO2 emission mouth of rectifying column passes through the second counterbalance valve
It is connected to carbon dioxide storage tank;The oxygen floss hole of rectifying column is connected to oxygen surge tank.
Further, it is equipped in overcritical water oxidization reactor for the heating of overcritical water oxidization reactor internal temperature
Ancillary heating equipment.
Further, the lower end of high-pressure hydraulic cyclone is equipped with inorganic salts storage tank.
Further, the nitrogen outlet of membrane separator is connected with oxygen inhaler, and the exhaust outlet of oxygen inhaler is connected with
Nitrogen storage tank.
Further, waste tank is connected to waste liquid pool by pipeline, and grid is equipped between waste tank and waste liquid pool.
Further, waste liquid booster pump is connected to the inlet of heat exchanger by pipeline, and the liquid outlet of heat exchanger passes through pipe
Road is connected to the inlet of overcritical water oxidization reactor, and electrical heating is equipped between heat exchanger and overcritical water oxidization reactor
Device.
Further, the leakage fluid dram of gas-liquid separator is connected to water tank, and water tank is connected to waste liquid pool by pipeline.
Compared with prior art, the utility model has technique effect beneficial below:
A kind of supercritical water oxidation treatment system of the utility model, including the supply of supercritical water oxidation device, oxygen
Device, organic liquid waste feedway and energy recycle device;Using oxygen feedway, scene continues high purity from air
The shortcomings that spending oxygen directly to use as oxidant, avoiding high cost, the high risk that transport oxygen bottle is brought, while may be used also
The high-purity nitrogen prepared carries out sale and brings income, while accessing energy regenerating in supercritical water oxidation device lower end
Device, the Btu utilization that will be generated in reaction process using energy recycle device avoids the waste of the energy, while passing through gas-liquid
Separator and rectifying column by after reaction oxygen and carbon dioxide recycle and reuse, realize the recycling machine of system
System, this system recycle the thermal energy of reaction product with pressure energy, reduce system energy consumption, and realize reaction production
The separation and recovery of oxygen, carbon dioxide in object, this system can significantly reduce the fortune of supercritical water oxidation system processing organic liquid waste
Row cost.
Further, the nitrogen outlet of membrane separator is connected with oxygen inhaler, and the exhaust outlet of oxygen inhaler is connected with
Nitrogen storage tank can effectively improve the purity of oxygen and nitrogen.
Further, waste liquid booster pump is connected to the inlet of heat exchanger by pipeline, and the liquid outlet of heat exchanger passes through pipe
Road is connected to the inlet of overcritical water oxidization reactor, and electrical heating is equipped between heat exchanger and overcritical water oxidization reactor
Device, the heat that can make full use of reactor generation carry out waste liquid preheating, reduce the offer of heat in reactor, save
The energy.
Description of the drawings
FIG. 1 is a schematic structural view of the utility model.
Wherein, 1 is air compressor;2 be the first drier;3 be filter;4 be membrane separator;5 be nitrogen adsorption device;
6 be oxygen inhaler;7 be nitrogen storage tank;8 be oxygen surge tank;9 be oxygen booster pump;10 be overcritical water oxidization reactor;
11 be ancillary heating equipment;12 be high-pressure hydraulic cyclone;13 be inorganic salts storage tank;14 be electric heater;15 be heat exchanger;16
For turbo-expander;17 be the first counterbalance valve;18 be gas-liquid separator;19 be water tank;20 be waste liquid pool;21 be grid;22
For waste tank;23 be waste liquid booster pump;24 be the second drier;25 be compressor;26 be condenser;27 be rectifying column;28
For the second counterbalance valve;29 carbon dioxide storage tanks.
Specific implementation mode
The utility model is described in further detail below in conjunction with the accompanying drawings:
As shown in Figure 1, a kind of supercritical water oxidation treatment system, including the supply of supercritical water oxidation device, oxygen
Device, organic liquid waste feedway and energy recycle device;
Supercritical water oxidation device includes overcritical water oxidization reactor 10, is set in overcritical water oxidization reactor 10
There is ancillary heating equipment 11, is heated for 10 internal temperature of overcritical water oxidization reactor;Overcritical water oxidization reactor 10
Outlet is connected with high-pressure hydraulic cyclone 12;The lower end of high-pressure hydraulic cyclone 12 is equipped with inorganic salts storage tank 13;Overcritical water oxygen
It is 375 DEG C -650 DEG C to change reactor reaction temperature, pressure 23-30MPa;Ancillary heating equipment is electric heater or gas furnace;
Oxygen feedway include sequentially connected air compressor 1, the first drier 2, filter 3, membrane separator 4,
Nitrogen adsorption device 5 and oxygen surge tank 8, oxygen surge tank 8 are connected to overcritical water oxidization reactor 10 by oxygen booster pump 9
Gas access, the oxygen outlet of membrane separator 4 connect with 5 entrance of nitrogen adsorption device, and the nitrogen outlet of membrane separator 4 is connected with
The exhaust outlet of oxygen inhaler 6, oxygen inhaler 6 is connected with nitrogen storage tank 7;It is filled in nitrogen adsorption device and inhales nitrogen molecular sieve, oxygen
Oxygen uptake molecular sieve is filled in aspiration device;There are ethanol amine, toluene, sodium hydroxide etc. in filter 3, two in thick air can be removed
The gases such as carbonoxide and hydrocarbon;
Organic liquid waste feedway includes waste tank 22 and waste liquid booster pump 23, is set on 23 liquid-transport pipe-line of waste liquid booster pump
Have electric heater 14, the waste liquid in waste tank 22 by waste liquid booster pump 23 be delivered to overcritical water oxidization reactor 10 into
In liquid mouth;
Specifically, waste tank 22 is connected to waste liquid pool 20 by pipeline, it is equipped between waste tank 22 and waste liquid pool 20
Grid 21 is used for the preliminary removal of impurities of waste water, filters out solid sundries in waste liquid;
Energy recycle device includes the heat exchanger 15 being connect with high-pressure hydraulic cyclone 12 and is connect with heat exchanger 15
Turbo-expander 16, turbo-expander 16 are connected with generator;Waste liquid booster pump 23 by pipeline be connected to heat exchanger 15 into
Liquid mouth, the liquid outlet of heat exchanger 15 are connected to the inlet of overcritical water oxidization reactor 10 by pipeline, heat exchanger 15 with it is super
Electric heater 14 is equipped between critical oxidation reactor 10;
The exhaust outlet of turbo-expander 16 is connected with gas-liquid separator 18 by the first counterbalance valve 17, gas-liquid separator 18
Leakage fluid dram is connected to water tank 19, and water tank 19 is connected to waste liquid pool 20 by pipeline;The exhaust outlet of gas-liquid separator 18 is successively
It is connected with the second drier 24, compressor 25, condenser 26 and rectifying column 27, condenser 26 is cooled down by coolant liquid, rectifying column
27 CO2 emission mouth is connected to carbon dioxide storage tank 29 by the second counterbalance valve 28;The oxygen floss hole of rectifying column 27 connects
It is connected to oxygen surge tank 8;Gas-liquid separator is normal pressure gas-liquid separator;Cooling water needed for condenser is provided by freezing unit, can
For liquid nitrogen, and cooling water enters the temperature of condenser and is less than cooled fluid liquefaction temperature;
It is described further below in conjunction with the accompanying drawings to the structural principle of the utility model and using step:
Enter in drier 2 by 1 compressed air of air compressor and remove vapor, is removed using filter 3
The gases such as carbon dioxide and hydrocarbon in air carry out crude separation, separation by membrane separator 4 to nitrogen and oxygen
The oxygen rich gas gone out completes the removing of nitrogen by nitrogen adsorption device 5, removes the high-purity oxygen after nitrogen and enters oxygen buffering
Tank 8 serves as oxidant;The nitrogen-rich gas gone out from 4 sub-argument of membrane separator obtains high-purity nitrogen by 6 deoxygenation of oxygen inhaler, right
High-purity nitrogen carries out storage tank sale.
Pending waste liquid is by waste liquid booster pump 23, heat exchanger 15,14 pressurized, heated of electric heater to setting pressure temperature
It is imported in overcritical water oxidization reactor 10 after degree, ancillary heating equipment 11 will be heated to setting value, waste liquid warp in reactor 10
After crossing supercritical water oxidation, it is oxidized to CO2, H2O and inorganic salts, wherein solubility of the inorganic salts in supercritical water very
It is low, it will to be precipitated and collect in reactor bottom in the reactor, these solid inorganics will pass through high-pressure hydraulic cyclone 12
Removing, drains into inorganic salts storage tank 13, prevents from blocking.
Oxidation reaction in overcritical water oxidization reactor 10 is exothermic reaction, and reaction product has very high thermal energy and pressure
Power energy, the high-temperature, high pressure fluid being discharged from 12 upper outlet of high-pressure hydraulic cyclone preheat pending waste liquid by heat exchanger 15,
The energy consumption of electric heater 14 in subsequent step is reduced, the fluid after heat exchange enters power generation of doing work in turbo-expander 16, generated electricity
Amount can be supplied to power consumption device in this system (high-pressure pump, electric heater).
The fluid come out from 16 exhaust outlet of turbo-expander enters by counterbalance valve 17 in gas-liquid separator 18, adjusts back pressure
Valve 17 makes 18 pressure of gas-liquid separator to normal pressure, completes the separation of carbon dioxide, oxygen and water, the water isolated is ultimately discharged into useless
Liquid pool 20 carries out concentration adjustment to waste liquid, solid sundries in waste liquid is filtered out by grid 21;It is isolated from gas-liquid separator 18
Carbon dioxide, oxygen by the second drier 24 remove carry vapor, using compressor 25 compress improve gaseous mixture
Pressure reduces the energy consumption for cooling of subsequent step to improve carbon dioxide phase transition temperature, and carbon dioxide gas passes through condenser 26
It is condensed into liquid and enters in rectifying column 27 and further purify, the separation of carbon dioxide and oxygen, separation are completed in rectifying column 27
Oxygen drain into oxygen surge tank 8 and be recycled, drain into two from the carbon dioxide of 27 bottom liquid phases of rectifying column outlet separation
Carbonoxide storage tank 29.
Claims (7)
1. a kind of supercritical water oxidation treatment system, which is characterized in that including supercritical water oxidation device, oxygen supply dress
It sets, organic liquid waste feedway and energy recycle device;
Supercritical water oxidation device includes overcritical water oxidization reactor (10), and overcritical water oxidization reactor (10) go out
Mouth is connected with high-pressure hydraulic cyclone (12);
Oxygen feedway includes sequentially connected air compressor (1), the first drier (2), filter (3), membrane separator
(4), nitrogen adsorption device (5) and oxygen surge tank (8), oxygen surge tank (8) are connected to supercritical water by oxygen booster pump (9)
The oxygen outlet of the gas access of oxidation reactor (10), membrane separator (4) is connect with nitrogen adsorption device (5) entrance;
Organic liquid waste feedway includes waste tank (22) and waste liquid booster pump (23), on waste liquid booster pump (23) liquid-transport pipe-line
Equipped with electric heater (14), the waste liquid in waste tank (22) is delivered to supercritical water oxidation by waste liquid booster pump (23)
In the inlet of device (10);
Energy recycle device includes the heat exchanger (15) being connect with high-pressure hydraulic cyclone (12) and is connect with heat exchanger (15)
Turbo-expander (16), turbo-expander (16) is connected with generator;
The exhaust outlet of turbo-expander (16) is connected with gas-liquid separator (18), gas-liquid separator by the first counterbalance valve (17)
(18) exhaust outlet is connected with the second drier (24), compressor (25), condenser (26) and rectifying column (27), rectifying column in turn
(27) CO2 emission mouth is connected to carbon dioxide storage tank (29) by the second counterbalance valve (28);The oxygen of rectifying column (27)
Floss hole is connected to oxygen surge tank (8).
2. a kind of supercritical water oxidation treatment system according to claim 1, which is characterized in that supercritical water oxidation
The ancillary heating equipment (11) for the heating of overcritical water oxidization reactor (10) internal temperature is equipped in device (10).
3. a kind of supercritical water oxidation treatment system according to claim 1, which is characterized in that high-pressure hydraulic cyclone
(12) lower end is equipped with inorganic salts storage tank (13).
4. a kind of supercritical water oxidation treatment system according to claim 1, which is characterized in that the nitrogen of membrane separator (4)
Gas outlet is connected with oxygen inhaler (6), and the exhaust outlet of oxygen inhaler (6) is connected with nitrogen storage tank (7).
5. a kind of supercritical water oxidation treatment system according to claim 1, which is characterized in that waste tank (22) passes through
Pipeline is connected to waste liquid pool (20), and grid (21) is equipped between waste tank (22) and waste liquid pool (20).
6. a kind of supercritical water oxidation treatment system according to claim 1, which is characterized in that waste liquid booster pump (23) is logical
Piping is connected to the inlet of heat exchanger (15), and it is anti-that the liquid outlet of heat exchanger (15) by pipeline is connected to supercritical water oxidation
The inlet of device (10) is answered, electric heater (14) is equipped between heat exchanger (15) and overcritical water oxidization reactor (10).
7. a kind of supercritical water oxidation treatment system according to claim 1, which is characterized in that gas-liquid separator (18)
Leakage fluid dram is connected to water tank (19), and water tank (19) is connected to waste liquid pool (20) by pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820112074.8U CN207998481U (en) | 2018-01-23 | 2018-01-23 | A kind of supercritical water oxidation treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820112074.8U CN207998481U (en) | 2018-01-23 | 2018-01-23 | A kind of supercritical water oxidation treatment system |
Publications (1)
| Publication Number | Publication Date |
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| CN207998481U true CN207998481U (en) | 2018-10-23 |
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ID=63837029
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820112074.8U Expired - Fee Related CN207998481U (en) | 2018-01-23 | 2018-01-23 | A kind of supercritical water oxidation treatment system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110171898A (en) * | 2019-03-12 | 2019-08-27 | 华电电力科学研究院有限公司 | A kind of organic wastewater resource cyclic utilization system and its working method based on distributed energy |
| CN110776055A (en) * | 2019-12-02 | 2020-02-11 | 思安新能源股份有限公司 | Application system of supercritical water oxidation reaction product |
| CN114751504A (en) * | 2022-03-29 | 2022-07-15 | 石家庄新奥环保科技有限公司 | Supercritical water oxidation heat recovery system |
| CN114890600A (en) * | 2022-05-11 | 2022-08-12 | 南京宇越水性涂料技术有限公司 | A circulation processing system that is arranged in waste gas waste liquid of vehicle after market |
-
2018
- 2018-01-23 CN CN201820112074.8U patent/CN207998481U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110171898A (en) * | 2019-03-12 | 2019-08-27 | 华电电力科学研究院有限公司 | A kind of organic wastewater resource cyclic utilization system and its working method based on distributed energy |
| CN110776055A (en) * | 2019-12-02 | 2020-02-11 | 思安新能源股份有限公司 | Application system of supercritical water oxidation reaction product |
| CN110776055B (en) * | 2019-12-02 | 2024-09-13 | 思安新能源股份有限公司 | Application system of supercritical water oxidation reaction product |
| CN114751504A (en) * | 2022-03-29 | 2022-07-15 | 石家庄新奥环保科技有限公司 | Supercritical water oxidation heat recovery system |
| CN114890600A (en) * | 2022-05-11 | 2022-08-12 | 南京宇越水性涂料技术有限公司 | A circulation processing system that is arranged in waste gas waste liquid of vehicle after market |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181023 Termination date: 20200123 |
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| CF01 | Termination of patent right due to non-payment of annual fee |