CN106630287B - The overcritical hydro-thermal burning processing of oil recovery waste liquid, steam injection system - Google Patents
The overcritical hydro-thermal burning processing of oil recovery waste liquid, steam injection system Download PDFInfo
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- CN106630287B CN106630287B CN201611251976.1A CN201611251976A CN106630287B CN 106630287 B CN106630287 B CN 106630287B CN 201611251976 A CN201611251976 A CN 201611251976A CN 106630287 B CN106630287 B CN 106630287B
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- 239000002699 waste material Substances 0.000 title claims abstract description 79
- 239000007788 liquid Substances 0.000 title claims abstract description 74
- 238000011084 recovery Methods 0.000 title claims abstract description 51
- 238000012545 processing Methods 0.000 title claims abstract description 27
- 238000010793 Steam injection (oil industry) Methods 0.000 title claims abstract description 22
- 239000000463 material Substances 0.000 claims abstract description 44
- 239000000446 fuel Substances 0.000 claims abstract description 34
- 238000009284 supercritical water oxidation Methods 0.000 claims abstract description 24
- 238000005345 coagulation Methods 0.000 claims abstract description 11
- 230000015271 coagulation Effects 0.000 claims abstract description 11
- 238000012805 post-processing Methods 0.000 claims abstract description 7
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 259
- 230000008676 import Effects 0.000 claims description 77
- 239000007800 oxidant agent Substances 0.000 claims description 75
- 230000001590 oxidative effect Effects 0.000 claims description 74
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 74
- 238000003860 storage Methods 0.000 claims description 24
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 18
- 238000005260 corrosion Methods 0.000 claims description 16
- 239000000872 buffer Substances 0.000 claims description 14
- 230000007797 corrosion Effects 0.000 claims description 10
- 238000001556 precipitation Methods 0.000 claims description 10
- 239000011344 liquid material Substances 0.000 claims description 8
- 239000000701 coagulant Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 5
- 230000008859 change Effects 0.000 claims description 3
- 230000005764 inhibitory process Effects 0.000 claims 1
- 239000003921 oil Substances 0.000 description 50
- 238000002485 combustion reaction Methods 0.000 description 23
- 239000000047 product Substances 0.000 description 14
- 239000010779 crude oil Substances 0.000 description 11
- 239000000295 fuel oil Substances 0.000 description 10
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 8
- 238000002347 injection Methods 0.000 description 8
- 239000007924 injection Substances 0.000 description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 7
- 239000001301 oxygen Substances 0.000 description 7
- 229910052760 oxygen Inorganic materials 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 239000003344 environmental pollutant Substances 0.000 description 6
- 231100000719 pollutant Toxicity 0.000 description 6
- 238000006073 displacement reaction Methods 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 230000000977 initiatory effect Effects 0.000 description 5
- 239000007787 solid Substances 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 230000001112 coagulating effect Effects 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000003500 flue dust Substances 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- BXGYYDRIMBPOMN-UHFFFAOYSA-N 2-(hydroxymethoxy)ethoxymethanol Chemical compound OCOCCOCO BXGYYDRIMBPOMN-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 239000005864 Sulphur Substances 0.000 description 2
- 230000008033 biological extinction Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 239000012263 liquid product Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000012454 non-polar solvent Substances 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000002957 persistent organic pollutant Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 239000006228 supernatant Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 238000010792 warming Methods 0.000 description 2
- 241000790917 Dioxys <bee> Species 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005261 decarburization Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 229910001410 inorganic ion Inorganic materials 0.000 description 1
- 229910017053 inorganic salt Inorganic materials 0.000 description 1
- 239000010808 liquid waste Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/24—Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/04—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste liquors, e.g. sulfite liquors
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/10—Nature of the water, waste water, sewage or sludge to be treated from quarries or from mining activities
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2209/00—Specific waste
- F23G2209/10—Liquid waste
- F23G2209/101—Waste liquor
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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Fluid Mechanics (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Mechanical Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
- Spray-Type Burners (AREA)
Abstract
The invention discloses a kind of overcritical hydro-thermal burning processing of oil recovery waste liquid, steam injection system, including coagulation pretreatment unit, coagulation pretreatment unit is connected with material sending unit, material sending unit is connected with overcritical hydro-thermal fuel element, overcritical hydro-thermal fuel element is connected with starting preheating unit, overcritical hydro-thermal fuel element is connected with supercritical water oxidation processing unit, supercritical water oxidation processing unit is connected with steam post-processing unit, effective steam injection medium can be provided while harmless treatment oil recovery waste liquid, improve thick oil recovery ratio.
Description
Technical field
The invention belongs to oil field deep-layer heavy crude winning apparatus technical field, in particular to a kind of supercritical water of oil recovery waste liquid
Hot burning processing, steam injection system.
Background technique
The explored heavy oil reserves in the whole world have reached 35,400,000,000 tons, and the heavy oil reserves that China has verified and controlled are 1,600,000,000 tons,
Have found that a viscous crude field more than 70, emphasis are distributed in the oil fields such as Tahe, triumph, the Liaohe River, Henan, Xinjiang in 12 basins at present.
Wherein, in the land crude oil in China, heavy oil reserves account for 20%, and the heavy oil reserves proportion in Crude Oil at Sea is up to 70%.It is thick
Oil considerably increases it and exploits difficulty since its viscosity is big, poor fluidity.Heating exploitation technology is existing most common thick
One of oily production technique improves crude oil fluidity by the heat effect viscosity reduction of steam (hot water), and thermal medium has power
Displacement of reservoir oil effect and dissolved gas drive effect, can effectively improve oil recovery factor.Injection boiler is that generation high temperature and high pressure steam is most normal
Equipment plays irreplaceable role in heavy recovery of super heavy oil.However, traditional injection boiler there are still
Some problems.Firstly, China's injection boiler quantity is big, it is distributed in each heavy oil development oil field in China, only Liaohe Oil Field one, showed
The various capacity injection boilers having are up to 340；Secondly, the fuel of injection boiler mostly based on heavy oil, can produce in combustion process
The pollutants such as raw SOx, NOx, flue dust.2012, China's oil and natural gas extraction industry discharged 2.5 ten thousand tons of SOx, 2.3 ten thousand tons
NOx and 1.7 ten thousand ton of flue dust.
Currently, China has become CO the biggest in the world2And SO2Discharge one of state and the big Acid Rain Zone in the world three.Coal-fired and fuel oil mistake
The flue dust that journey is discharged is the primary factor for leading to haze weather, seriously endangers human health.Therefore, conventional coal-fired and fuel oil skill
Art needs to configure end desulphurization and denitration and cleaner, and investment is huge, and operating cost is very high.Due to uphole steam generator scale
It is small, the desulphurization and denitration and dust-extraction unit of general not set valuableness.In addition, realizing CO during conventional fuel oil2Control is again one
A difficult point, if carrying out CO2Separation, then equipment investment is high, and decarburization energy consumption is big, and system economy is poor.It is not needed for this purpose, developing one kind
New and effective, the clean-burning technology of pollutant end-of-pipe control are research hotspots in recent years.
Overcritical hydro-thermal combustion technology is applied to harmless treatment and the steam injection field of oil recovery waste liquid, auxiliary fuel is super to be faced
High-temperature product after the burning of boundary's hydro-thermal is directly mixed with cold oil recovery waste liquid, waste liquid is heated to supercriticality, and then occur
Fast and efficiently SCWO reacts, final to generate by water, CO while realizing the harmless treatment of pollutant in waste liquid2、N2Etc. groups
At overcritical composite heat carrier.After being injected into stratum, entrained by heat crude oil is heated, make crude oil viscosity under
Drop, mobility sharply enhance, CO2、N2Equal gases are dissolved in crude oil, reduce interfacial tension, further drive crude oil flow.Except this
Except, compared with conventional injection boiler heating exploitation technology, overcritical hydro-thermal combustion technology has significant advantage: (1) in fuel
Sulphur be mainly present in liquid product in the form of sulfate, SOx will not be discharged into atmosphere；Most nitrogen in fuel
It is eventually converted into nitrogen, is discharged almost without NOx to atmosphere；Combustion process carries out in water, and smoke dust and heavy metal are to big compression ring
Border discharge；The burning final product of carbon is CO in fuel2, it is dissolved completely in supercritical water, but CO after cooling2Be easy to from
It is separated in water, to realize CO2Inexpensive emission reduction.Therefore, the control of pollutant source may be implemented in overcritical hydro-thermal combustion technology
System, is not required to the end equipment of desulphurization and denitration, dedusting, effectively controls the atmosphere pollution such as haze.(2) fuel is in supercritical water
Combustion process is volume heat release, is the direct heat transfer between molecule, high combustion efficiency.(3) water outlet can reach facing for water after reacting
More than boundary's point, on the basis of reinforcing thermal drive effect, supercritical water is a kind of nonpolar solvent again, can be with after injection oil reservoir
It realizes and is similar to the miscible displacement of reservoir that gas mixed phase drives, the water of above-critical state can dissolve part crude oil, to enhance the stream of crude oil
Dynamic property, improves oil displacement efficiency.(4) without flue gas loss, energy utilization efficiency is improved, reduces fuel consumption.(5) oil recovery waste liquid is made
It for water supply, while realizing the efficient process of waste liquid, reduces water process expense.(6) overcritical hydro-thermal burner is small in size, takes up an area
Area is few, the situation limited suitable for spaces such as sea, undergrounds.
However, the exploitation for overcritical hydro-thermal combustion technology of playing chess is not applied to practical work also also in laboratory stage
Cheng Zhong.
Summary of the invention
The object of the present invention is to provide a kind of overcritical hydro-thermal burning processing of oil recovery waste liquid, steam injection system, are made with methanol
For auxiliary fuel, realize efficiently, clean, low-carbon combustion on the basis of, can be provided with while harmless treatment oil recovery waste liquid
The steam injection medium of effect improves thick oil recovery ratio.
Institute of the invention is the overcritical hydro-thermal burning processing of oil recovery waste liquid, steam injection system using technical solution, including coagulation
Pretreatment unit, coagulation pretreatment unit are connected with material sending unit, and material sending unit is connected with overcritical hydro-thermal burning
Unit, overcritical hydro-thermal fuel element are connected with starting preheating unit, and overcritical hydro-thermal fuel element is connected with overcritical water oxygen
Change processing unit, supercritical water oxidation processing unit is connected with steam post-processing unit；
Coagulation pretreatment unit includes oil recovery waste liquid material storage container, and the outlet of oil recovery waste liquid material storage container has low pressure material
Pump, low pressure product pump are communicated with coagulant precipitation pond, and coagulant precipitation pond is communicated with cartridge filter, and cartridge filter is communicated with storing
Case；
Material sending unit includes high-pressure material variable frequency pump, methanol storage tank, liquid oxygen vessel, the outlet high pressure of material storing box
Material variable frequency pump, methanol storage tank are communicated with high-pressure methanol pump, and the outlet of liquid oxygen vessel has been sequentially communicated Low Temperature Liquid oxygen pump, oxidant
Preheater, buffer；
Overcritical hydro-thermal fuel element includes overcritical hydro-thermal fired steam generator, high-pressure material variable frequency pump, high pressure first
Alcohol pump and buffer are all connected with overcritical hydro-thermal fired steam generator；
Starting preheating unit includes softening water tank, and the outlet of softening water tank is connected with high pressure softened water variable frequency pump, soft in turn
Change Water electric heater, threeway, threeway is connected to overcritical hydro-thermal fired steam generator；
Supercritical water oxidation processing unit includes supercritical water oxidation tubular reactor, supercritical water oxidation tubular reactor
Overcritical hydro-thermal fired steam generator is connected, supercritical water oxidation tubular reactor is also connected with vapor filter and spare steaming
Vapour filter, vapor filter and reserve steam filter are parallel setting, and vapor filter and reserve steam filter are also total
With connection oxidant preheater；
Steam post-processing unit includes CO2Corrosion inhibiter storage tank, CO2The outlet of corrosion inhibiter storage tank is connected with corrosion inhibiter metering pump,
Corrosion inhibiter metering pump is connected with mixer, and mixer is also connected with oxidant preheater.
Overcritical hydro-thermal fired steam generator includes top cover and straight tube body portion, and hot water inlet, are provided on top cover
Two waste liquid imports, the import of third waste liquid, the first methanol import, the second methanol import, the import of third methanol, the first oxidant into
Mouth, the second oxidant inlet, straight tube body portion include pressure-bearing wall 74, the first inner cylinder, the second inner cylinder, and the first inner cylinder is located in second
In cylinder, the lower part of pressure-bearing wall is provided with oxidant inlet, and oxidant inlet is connected to the outlet of buffer, the top setting of pressure-bearing wall
There is oxidant outlet, oxidant outlet is connected to the first oxidant inlet and the second oxidant inlet；
Oxidant preheater is configured as bushing type preheater, and one end of the inner tube of oxidant preheater connects low-temperature liquid oxygen
The other end of pump, the inner tube of oxidant preheater connects buffer, and vapor filter and reserve steam filter connect oxygen jointly
The other end of one end of agent preheater outer tube, the outer tube of oxidant preheater connects mixer.
The outlet of high-pressure material variable frequency pump is set side by side with the first sewer pipe, the second sewer pipe, third sewer pipe, and first is useless
Liquid pipe is connected to threeway, and threeway is connected to hot water inlet, and the second sewer pipe and third sewer pipe are respectively communicated with the second waste liquid import and the
The outlet of three waste liquid imports, high-pressure methanol pump is set side by side there are three pipeline, and three pipelines are respectively communicated with the first methanol import, the
Dimethanol import, third methanol import.
Third waste liquid import is arranged on the top cover between the first inner cylinder and the second inner cylinder, hot water inlet, the second waste liquid into
Mouth, the first methanol import, the second methanol import, the import of third methanol, the first oxidant inlet, the setting of the second oxidant inlet exist
On the corresponding top cover in first inner cylinder top, several apertures are offered on the first inner tube wall.
Threeway is provided with the first import and the second import, softens the first import of Water electric heater outlet, the first waste liquid
Pipe is connected to the second import.
It is provided with electric check valve between cartridge filter and material storing box, oil recovery waste liquid flow is provided on the first sewer pipe
Regulating valve is provided with pressure-regulating valve on the pipeline between the outer tube and mixer of oxidant preheater.
The beneficial effects of the present invention are:
(1) present invention uses the overcritical hydro-thermal fired steam generator using methanol as auxiliary fuel, and dirt may be implemented
The control of material resource head is contaminated, be not required to the end equipment of desulphurization and denitration, dedusting: the sulphur in fuel is mainly present in the form of sulfate
In liquid product, SO will not be discharged into atmosphereX；Most nitrogen is eventually converted into nitrogen in fuel, almost without NOXXiang great
Gas discharge；Combustion process carries out in water, and smoke dust and heavy metal are discharged to atmospheric environment；The burning final product of carbon is in fuel
CO2, it is dissolved completely in supercritical water, but CO after cooling2It is easy to be separated from the water, to realize CO2Low cost subtract
Row.In addition, combustion process of the fuel in supercritical water is volume heat release, it is the direct heat transfer between molecule, high combustion efficiency.
Overcritical hydro-thermal combustion technology improves energy utilization efficiency without flue gas loss, reduces fuel consumption.Overcritical hydro-thermal burner
It is small in size, occupied area is few, the situation limited suitable for spaces such as sea, undergrounds.
(2) using oil recovery waste liquid as water supply, the high-temperature product and cold oil recovery waste liquid after the overcritical hydro-thermal burning of fuel are mixed
After conjunction, it is heated to 25MPa, 420 DEG C, enters supercritical water oxidation tubular reactor later and realizes organic pollutant in waste liquid
Quick, efficient-decomposition, generate CO2、N2Deng cleaning product, thus reduce water process expense.In addition, locating in advance in conjunction with coagulating sedimentation
Reason, addition CO2The post-treatment measures such as corrosion inhibiter, solid particle, the scale-forming ion etc. removed in oil recovery waste liquid cause pipeline of oil production
The pollutant of burn into formation blockage guarantees that system is discharged oil-field flooding water quality indicator.In addition to this, caused by system
25MPa, 400 DEG C of high temperature and high pressure steams can reach the critical point of water or more, and higher temperature parameter is conducive to super-viscous oil and deep layer
Thermal drive effect is reinforced in the exploitation of viscous crude；And supercritical water is a kind of nonpolar solvent again, be may be implemented after injecting oil reservoir
Similar to the miscible displacement of reservoir that gas mixed phase drives, the water of above-critical state can dissolve part crude oil, thus enhance the mobility of crude oil,
Further increase oil displacement efficiency.
(3) when system starts, overcritical hydro-thermal fired steam generator is lighted step by step using three-level methanol, first strand of small stream
The heat that the heat released after amount methanol burning is warming up to initiation temperature to provide second strand of methanol, after second burst of methanol burning
Thermal discharge further heat third stock methanol to initiation temperature.In system start-up phase, auxiliary fuel methanol is in supercritical water
The initiation temperature of middle ignition is 500 DEG C, and this system is to generate 600 DEG C of high-temperature steams by electric heater come heating methanol to ignition
Temperature.Lighted step by step using three-level methanol, purpose be exactly in order to reduce startup stage guarantee methanol ignition needed for external heat source, reduce
Soften the power of Water electric heater.According to calculated result, the oil recovery liquid waste system for being 23t/h for treating capacity, if using by
Grade heating, starting required steam flow is 8.42t/h, and after using three-level methanol stepped heating, required steam flow is only
For 0.23t/h.Therefore overcritical hydro-thermal fired steam generator is lighted step by step using three-level methanol, can not only substantially reduce starting
When soften the power of Water electric heater, and the equipment manufacturing cost of the electric heater can be reduced, reduction system is tentatively invested.In addition,
The auxiliary fuel that this system is burnt using 30% methanol as overcritical hydro-thermal, result of study shows in operational process, is not necessarily to
Being preheated to fuel can guarantee burning stable in supercritical water combustion chamber, thus in system operation, it can close
Soften Water electric heater, reduces systematic running cost and use.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the overcritical hydro-thermal burning processing of oil recovery waste liquid of the present invention, steam injection system；
Fig. 2 is the overcritical hydro-thermal fired combustion steam of the overcritical hydro-thermal burning processing of oil recovery waste liquid of the present invention, steam injection system
The structural schematic diagram of generator；
Fig. 3 is the overcritical hydro-thermal fired combustion steam of the overcritical hydro-thermal burning processing of oil recovery waste liquid of the present invention, steam injection system
The structural schematic diagram of the top cover of generator.
In figure, 1. oil recovery waste liquid material storage containers, 2. low pressure product pumps, 3. coagulant precipitation ponds, 4. cartridge filters, 5. storings
Case, 6. high-pressure material variable frequency pumps, 7. overcritical hydro-thermal fired steam generators, 8. supercritical water oxidation tubular reactors, 9. first
Alcohol storage tank, 10. high-pressure methanols pump, 11. liquid oxygen vessels, 12. Low Temperature Liquid oxygen pumps, 13. oxidant preheaters, 14. buffers,
15.CO2Corrosion inhibiter storage tank, 16. corrosion inhibiter metering pumps, 17. vapor filters, 18. reserve steam filters, 19. softening water tanks,
20. high pressure softened water variable frequency pump, 21. softening Water electric heaters, 22. threeways, 23. mixers, 24. oil recovery waste liquid flows are adjusted
Valve, 25. electric check valves, 26. pressure-regulating valves；
61. the first sewer pipe, 62. second sewer pipes, 63. third sewer pipes；
71. the first inner cylinder, 72. second inner cylinders, 73. top covers, 74. pressure-bearing walls；
731. hot water inlets, 732. second waste liquid imports, 733 third waste liquid imports, 734. first methanol imports, 735.
Dimethanol import, 736. third methanol imports, 737. first oxidant inlets, 738. second oxidant inlets, 741. oxidants
Outlet, 742. oxidant inlets；
221. first imports, 222 second imports；
281. temperature measuring sets, 282. pressure-measuring devices.
Specific embodiment
The following describes the present invention in detail with reference to the accompanying drawings and specific embodiments.
The present invention provides a kind of overcritical hydro-thermal burning processing of oil recovery waste liquid, steam injection system, structure such as Fig. 1 institutes
Show, including coagulation pretreatment unit, coagulation pretreatment unit is connected with material sending unit, and material sending unit is connected with super face
Boundary's hydro-thermal fuel element, overcritical hydro-thermal fuel element are connected with starting preheating unit, and overcritical hydro-thermal fuel element is connected with
Supercritical water oxidation processing unit, supercritical water oxidation processing unit are connected with steam post-processing unit.
Coagulation pretreatment unit includes oil recovery waste liquid material storage container 1, and the outlet of oil recovery waste liquid material storage container 1 has low pressure material
Pump 2, low pressure product pump 2 are communicated with coagulant precipitation pond 3, and coagulant precipitation pond 3 is communicated with cartridge filter 4, and cartridge filter 4 is connected to
There is material storing box 5；
Material sending unit includes high-pressure material variable frequency pump 6, methanol storage tank 9, liquid oxygen vessel 11, and the outlet of material storing box 5 connects
Logical high-pressure material variable frequency pump 6, methanol storage tank 9 are communicated with high-pressure methanol pump 10, and the outlet of liquid oxygen vessel 11 has been sequentially communicated low temperature
Liquid oxygen pump 12, oxidant preheater 13, buffer 14；
Overcritical hydro-thermal fuel element includes overcritical hydro-thermal fired steam generator 7, high-pressure material variable frequency pump 6, high pressure
Methanol pump 10 and buffer 14 are all connected with overcritical hydro-thermal fired steam generator 7；
Starting preheating unit includes softening water tank 19, and the outlet of softening water tank 19 is connected with high pressure softened water variable frequency pump in turn
20, soften Water electric heater 21, threeway 22, threeway 22 is connected to overcritical hydro-thermal fired steam generator 7；
Supercritical water oxidation processing unit includes supercritical water oxidation tubular reactor 8, supercritical water oxidation pipe reaction
Device 8 connects overcritical hydro-thermal fired steam generator 7, and supercritical water oxidation tubular reactor 8 is also connected with vapor filter 17
With reserve steam filter 18, vapor filter 17 and reserve steam filter 18 are parallel setting, vapor filter 17 and standby
With the also common connection oxidant preheater 13 of vapor filter 18；
Steam post-processing unit includes CO2Corrosion inhibiter storage tank 15, CO2The outlet of corrosion inhibiter storage tank 15 is connected with corrosion inhibiter meter
Amount pump 16, corrosion inhibiter metering pump 16 is connected with mixer 23, and mixer 23 is also connected with oxidant preheater 13.
As shown in Fig. 2, overcritical hydro-thermal fired steam generator 7 includes top cover 73 and straight tube body portion, set on top cover 73
It is equipped with hot water inlet 731, the second waste liquid import 732, the import 733 of third waste liquid, the first methanol import 734, the second methanol import
735, third methanol import 736, the first oxidant inlet 737, the second oxidant inlet 738, straight tube body portion include pressure-bearing wall
74, the first inner cylinder 71, the second inner cylinder 72, the first inner cylinder 71 are located in the second inner cylinder 72, and the lower part of pressure-bearing wall 74 is provided with oxidation
Agent import 742, oxidant inlet 742 are connected to the outlet of buffer 14, and the top of pressure-bearing wall 74 is provided with oxidant outlet 741,
Oxidant outlet 741 is connected to the first oxidant inlet 737 and the second oxidant inlet 738；
Oxidant preheater 13 is configured as bushing type preheater, and one end of the inner tube of oxidant preheater 13 connects low temperature
Liquid oxygen pump 12, the other end of the inner tube of oxidant preheater 13 connect buffer 14, vapor filter 17 and reserve steam filtering
Device 18 connects one end of 13 outer tube of oxidant preheater jointly, and the other end of the outer tube of oxidant preheater 13 connects mixer
23。
The outlet of high-pressure material variable frequency pump 6 is set side by side with the first sewer pipe 61, the second sewer pipe 62, third sewer pipe
63, the first sewer pipe 61 is connected to threeway 22, and threeway 22 is connected to hot water inlet 731, and the second sewer pipe 62 and third sewer pipe 63 divide
It is not connected to the second waste liquid import 732 and third waste liquid import 733, the outlet of high-pressure methanol pump 10 is set side by side there are three pipeline,
Three pipelines are respectively communicated with the first methanol import 734, the second methanol import 735, third methanol import 736.
As shown in figure 3, third waste liquid import 733 is arranged on the top cover 73 between the first inner cylinder 71 and the second inner cylinder 72,
Hot water inlet 731, the second waste liquid import 732, the first methanol import 734, the second methanol import 735, third methanol import 736,
First oxidant inlet 737, the second oxidant inlet 738 are arranged on the corresponding top cover 73 in 71 top of the first inner cylinder, in first
Several apertures are offered on 71 walls of cylinder.
Threeway 22 is provided with the first import 221 and the second import 222, softens 21 the first import of outlet of Water electric heater
221, the first sewer pipe 61 is connected to the second import 222.
It is provided with electric check valve 25 between cartridge filter 4 and material storing box 5, it is useless that oil recovery is provided on the first sewer pipe 61
Liquid stream adjustable valve 24 is provided with pressure-regulating valve 26 on the pipeline between the outer tube and mixer 23 of oxidant preheater 13.
The inner cavity 71 of overcritical hydro-thermal fired steam generator 7 is provided with pressure-measuring device 282 and temperature measuring set 281；
The overcritical hydro-thermal burning processing of oil recovery waste liquid of the invention a kind of, steam injection system working principle are as follows:
System start-up phase: to clear water is added in material storing box 5, electronic section between cartridge filter 4 and material storing box 5 is closed
Only valve 25, and close oil recovery waste liquid flow control valve 24.Start high-pressure material variable frequency pump 6, it will by high-pressure material variable frequency pump 6
After clear water in material storing box 5 shunts, the second waste liquid import 732 and the of overcritical hydro-thermal fired steam generator 7 is respectively enterd
Three waste liquid imports 733.By adjusting the aperture of pressure-regulating valve 26 step by step, export overcritical hydro-thermal fired steam generator 7
Pressure gradually rise to 25MPa；
Start high pressure softened water variable frequency pump 20 and softening Water electric heater 21, will be softened by high pressure softened water variable frequency pump 20
Softened water in water tank 19 is squeezed into softening Water electric heater 21 with the flow of 0.23t/h to be heated, and 600 DEG C is heated to, into three
Logical 22 the first import 221 enters overcritical hydro-thermal fired steam generator 7 by hot water inlet 731 after the outflow of threeway 22
It is interior, preheat 10min；
After preheated 10min, high-pressure methanol pump 10 is opened, pumps 10 for the pure methanol in methanol storage tank 9 by high-pressure methanol
After the flow boosting of 2.53t/h, it is divided into three plume amounts, respectively from the first methanol import 734, the second methanol import 735, third
Methanol import 736 enters overcritical hydro-thermal fired steam generator 7.After wherein first strand of methanol enters the first methanol import 734,
It is mixed with the 600 DEG C of hot water entered in overcritical hydro-thermal fired steam generator 7 from hot water inlet 731, is heated to ignition temperature
500 DEG C of degree.It opens and opens Low Temperature Liquid oxygen pump 12, oxidant preheater 13 while high-pressure methanol pumps 10, in liquid oxygen vessel 11
Low-temperature liquid oxygen is squeezed into the inner tube of oxidant preheater 13 after Low Temperature Liquid oxygen pump 12 is with the flow boosting of 4.14t/h, through aoxidizing
Agent preheater 13, from -183 DEG C be warming up to 250 DEG C after enter buffer 14, later pass through overcritical hydro-thermal fired steam generator
The lower oxidant imports 742 of 7 pressure-bearing walls 74 enters by the oxidant channel between pressure-bearing wall 74 and the second inner cylinder 72, by surpassing
Critical 7 internal heat flows body of hydro-thermal fired steam generator further preheats it, goes out later from the upper oxidant of pressure-bearing wall 74
Mouth 741 flows out, and enters overcritical hydro-thermal by the first oxidant inlet 737 and the second oxidant inlet 738 respectively after being split
Fired steam generator 7, wherein first strand of oxygen to provide first strand and second strand of methanol burn needed for oxidant, second strand
Oxygen is to oxidant needed for providing the burning of third stock methanol.First strand of methanol and first strand of oxygen mix ignition, it is produced
High-temp combustion after product further heat second strand of methanol, be allowed to warm to 500 DEG C of initiation temperature and combustion reaction occur,
High-temperature product after two bursts of methanol burnings further heats third stock methanol and carries out combustion reaction to 500 DEG C of initiation temperature.
High-temperature combustion product after three strands of methanol all ignitions further preheats steam generator 7, until overcritical hydro-thermal is burnt
7 middle outlet fluid temperature (F.T.) of steam generator and pressure respectively reach 420 DEG C, 25MPa.Electric check valve 25 is opened, by material storing box 5
In clear water switch to oil recovery waste liquid.High pressure softened water variable frequency pump 20 and softening Water electric heater 21 are closed, oil recovery waste liquid is opened
0.23t/h, 600 DEG C of hot water are switched to the oil recovery waste liquid of 0.23t/h, 15 DEG C by flow control valve 24, mixed with first strand of methanol
The methanol waste water mixed solution of 30wt% is formulated as after conjunction, system operates normally.According to the research of Eidgenoess Tech Hochschule
The result shows that guarantee that the fuel solution extinction temperature for stablizing hydro-thermal burning is reduced with the increase of fuel methanol solution concentration,
Extinction temperature corresponding to the methanol solution of 30~32wt% is room temperature.Therefore, this system uses the methanol solution of 30wt%, can
Stable hydro-thermal flame can be obtained not carry out preheating to it, after overcritical hydro-thermal fired steam generator 7 operates normally, nothing
Need external heat source that can maintain its reliable, continuous operation.
When system operates normally: oil recovery waste liquid is stored in oil recovery waste liquid material storage container 1, and the oil recovery waste liquid of 23t/h is through low pressure
Product pump 2 enters coagulative precipitation tank 3, and the suspended matter in flocculant separation waste water, coagulative precipitation tank are added in coagulative precipitation tank 3
Solidliquid mixture in 3 enters cartridge filter 4, realizes and is separated by solid-liquid separation, and solid matter is periodically arranged by 4 bottom of cartridge filter
Out, filtered supernatant is flowed out from filter upper outlet, into material storing box 5；
After the supernatant of oil recovery waste liquid in material storing box 5 is boosted by high-pressure material variable frequency pump 6, three strands of waste liquids are split into,
First strand of waste liquid enters the second import 222 of threeway 22 by the first sewer pipe 61 by oil recovery waste liquid flow control valve 24, so
Afterwards by hot water inlet 731 enter overcritical hydro-thermal fired steam generator 7, and with pass through the first methanol import 734 first
Stock methanol, which is mixed into, is hybridly prepared into the methanol waste water mixed solution that concentration is 30%, enters back into the first inner cylinder 71.Second
Stock waste liquid passes through the second sewer pipe 62, is entered in the first inner cylinder 71 by the second waste liquid import 732, produces with methanol combustion reaction
Object mixing.Third stock waste liquid passes through third sewer pipe 63, is entered in the first inner cylinder 71 and second by third waste liquid import 733
It in annular space between cylinder 72, then is entered in the first inner cylinder 71 by the several holes on the first inner cylinder 71, in the first inner cylinder 71
Methanol hydro-thermal combustion high temperature product, form 420 DEG C of reaction mixture.When normal operation, from the first oxidant inlet 737
Into steam generator 7 first strand of oxygen to first strand of methanol is provided and second strand of methanol burn needed for oxidant, from the
Second strand of oxygen that dioxy agent import 738 enters steam generator 7 is super to provide the burning of third stock methanol and oil recovery waste liquid
Oxidant needed for critical oxidation reaction.
420 DEG C of high-pressure fluid is anti-into supercritical water oxidation tubular type after flowing out in overcritical hydro-thermal combustion generator 7
It answers and carries out supercritical water oxidation in device 8, the organic pollutant in waste liquid is fast and efficiently decomposed in the reactor, instead
Product enters vapor filter 17 or reserve steam filter 18 after answering, since supercritical water has very low dielectric constant, because
And the inorganic ion (scale-forming ion, corrosive ions etc.) in product is very low in solubility wherein, and with inorganic salts solid
The form of grain is therefrom precipitated.Vapor filter is flowed through, the solid inorganic salt particle in reaction product is separated.Vapor filter 17
With reserve steam filter 18 by the way of being connected in parallel, it is therefore intended that periodic cleaning wherein solid pollutant when can realize two
Person is automatically switched, and guarantees system continuous operation.High-temperature, high pressure fluid after being separated by filtration enter 13 outer tube of oxidant preheater into
Mouth preheats the oxidant of inner tube, passes through pressure after 13 outer tube of oxidant preheater outlet outflow after being cooled to 400 DEG C
Force regulating valve 25 enters mixer 23.Pressure-regulating valve 25 adjusting upstream pressure, guarantee upstream pressure be maintained at 25 ±
1MPa.In mixer 23 with CO2Corrosion inhibiter mixing, it is therefore intended that avoid the CO in product2Corrosion to steam injection pipeline.So far,
Meet 400 DEG C of steam injection requirement, the high temperature and high pressure steam of 25MPa can be by injection stratum.
Claims (6)
1. the overcritical hydro-thermal burning processing of oil recovery waste liquid, steam injection system, which is characterized in that including coagulation pretreatment unit, institute
It states coagulation pretreatment unit and is connected with material sending unit, the material sending unit is connected with overcritical hydro-thermal fuel element,
The overcritical hydro-thermal fuel element is connected with starting preheating unit, and the overcritical hydro-thermal fuel element is connected with supercritical water
Oxidation processes unit, the supercritical water oxidation processing unit are connected with steam post-processing unit；
The coagulation pretreatment unit includes oil recovery waste liquid material storage container (1), and the outlet of oil recovery waste liquid material storage container (1) has low pressure
Product pump (2), low pressure product pump (2) are communicated with coagulant precipitation pond (3), and coagulant precipitation pond (3) are communicated with cartridge filter (4),
Cartridge filter (4) is communicated with material storing box (5)；
The material sending unit includes high-pressure material variable frequency pump (6), methanol storage tank (9), liquid oxygen vessel (11), the material storing box
(5) outlet high-pressure material variable frequency pump (6), the methanol storage tank (9) are communicated with high-pressure methanol pump (10), the liquid oxygen storage
The outlet of slot (11) has been sequentially communicated Low Temperature Liquid oxygen pump (12), oxidant preheater (13), buffer (14)；
The overcritical hydro-thermal fuel element includes overcritical hydro-thermal fired steam generator (7), the high-pressure material variable frequency pump
(6), high-pressure methanol pump (10) and buffer (14) are all connected with overcritical hydro-thermal fired steam generator (7)；
The starting preheating unit includes softening water tank (19), and the outlet of softening water tank (19) is connected with the change of high pressure softened water in turn
Frequency pump (20), softening Water electric heater (21), threeway (22), the threeway (22) are connected to overcritical hydro-thermal fired steam generator
(7)；
The supercritical water oxidation processing unit includes supercritical water oxidation tubular reactor (8), and supercritical water oxidation tubular type is anti-
Device (8) are answered to connect overcritical hydro-thermal fired steam generator (7), supercritical water oxidation tubular reactor (8) is also connected with steam
Filter (17) and reserve steam filter (18), the vapor filter (17) and reserve steam filter (18) are to set parallel
It sets, vapor filter (17) and also common connection oxidant preheater (13) of reserve steam filter (18)；
The steam post-processing unit includes CO2Corrosion inhibiter storage tank (15), CO2The outlet of corrosion inhibiter storage tank (15) is connected with inhibition
Agent metering pump (16), corrosion inhibiter metering pump (16) are connected with mixer (23), and the mixer (23) is also connected with oxidant preheating
Device (13).
2. the overcritical hydro-thermal burning processing of oil recovery waste liquid according to claim 1, steam injection system, which is characterized in that institute
Stating overcritical hydro-thermal fired steam generator (7) includes top cover (73) and straight tube body portion, be provided on top cover (73) hot water into
Mouth (731), the second waste liquid import (732), third waste liquid import (733), the first methanol import (734), the second methanol import
(735), third methanol import (736), the first oxidant inlet (737), the second oxidant inlet (738), straight tube body portion packet
Pressure-bearing wall (74), the first inner cylinder (71), the second inner cylinder (72) are included, the first inner cylinder (71) is located in the second inner cylinder (72), pressure-bearing wall
(74) lower part is provided with oxidant inlet (742), and oxidant inlet (742) is connected to the outlet of buffer (14), pressure-bearing wall
(74) top is provided with oxidant outlet (741), and oxidant outlet (741) is connected to the first oxidant inlet (737) and second
Oxidant inlet (738)；
The oxidant preheater (13) is configured as bushing type preheater, one end connection of the inner tube of oxidant preheater (13)
Low Temperature Liquid oxygen pump (12), the other end of the inner tube of oxidant preheater (13) connect buffer (14), vapor filter (17) and
Reserve steam filter (18) connects one end of oxidant preheater (13) outer tube jointly, the outer tube of oxidant preheater (13)
The other end connects mixer (23).
3. the overcritical hydro-thermal burning processing of oil recovery waste liquid according to claim 2, steam injection system, which is characterized in that institute
The outlet for stating high-pressure material variable frequency pump (6) is set side by side with the first sewer pipe (61), the second sewer pipe (62), third sewer pipe
(63), the first sewer pipe (61) connection threeway (22), threeway (22) are connected to hot water inlet (731), the second sewer pipe (62)
The second waste liquid import (732) and third waste liquid import (733), the high-pressure methanol pump are respectively communicated with third sewer pipe (63)
(10) outlet is set side by side there are three pipeline, and three pipelines are respectively communicated with the first methanol import (734), the second methanol import
(735), third methanol import (736).
4. according to the overcritical hydro-thermal burning processing of oil recovery waste liquid according to claim 3, steam injection system, feature exists
In described on the top cover (73) that the third waste liquid import (733) is arranged between the first inner cylinder (71) and the second inner cylinder (72)
Hot water inlet (731), the second waste liquid import (732), the first methanol import (734), the second methanol import (735), third methanol
Import (736), the first oxidant inlet (737), the second oxidant inlet (738) setting are corresponding on the first inner cylinder (71) top
On top cover (73), several apertures are offered on the first inner cylinder (71) wall.
5. according to the overcritical hydro-thermal burning processing of oil recovery waste liquid according to claim 4, steam injection system, feature exists
In the threeway (22) is provided with the first import (221) and the second import (222), softening Water electric heater (21) outlet
It is connected to the first import (221), first sewer pipe (61) is connected to the second import (222).
6. the overcritical hydro-thermal burning processing of oil recovery waste liquid according to claim 5, steam injection system, which is characterized in that institute
It states and is provided between cartridge filter (4) and material storing box (5) electric check valve (25), is provided on first sewer pipe (61)
Oil recovery waste liquid flow control valve (24) is arranged on the pipeline between the outer tube and mixer (23) of the oxidant preheater (13)
There are pressure-regulating valve (26).
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| CN108622993B (en) * | 2018-04-12 | 2021-08-06 | 西安理工大学 | Supercritical water oxidation treatment device for nitrogen-containing organic wastewater |
| CN108731000B (en) * | 2018-07-16 | 2023-10-20 | 衢州市求是科技联合会 | Flameless combustion and wet oxidation treatment device for organic wastewater |
| CN110790466B (en) * | 2019-09-24 | 2020-08-18 | 西安交通大学 | Supercritical hydrothermal flame enhanced supercritical water oxidation organic waste treatment system and regulation and control method |
| CN111396010B (en) * | 2020-05-08 | 2023-07-14 | 新疆维吾尔自治区煤田地质局煤层气研究开发中心 | Clean energy-taking system and method for coal bed gas field |
| CN111774580B (en) * | 2020-07-01 | 2021-07-27 | 西安交通大学 | Continuous post-treatment system and method for preparing nano material by supercritical hydrothermal synthesis |
| CN112358026B (en) * | 2020-10-30 | 2024-01-23 | 西安理工大学 | Organic hazardous waste supercritical water reinforced oxidation treatment coupling power generation system |
| CN113685159B (en) * | 2021-08-31 | 2022-06-21 | 西安交通大学 | Supercritical hydrothermal combustion type multi-element thermal fluid generating device and method with safety guarantee |
| CN113756772B (en) * | 2021-08-31 | 2023-04-07 | 西安交通大学 | Supercritical hydrothermal combustion type multi-element thermal fluid generation system and process suitable for high-viscosity fuel |
| CN114685021A (en) * | 2022-04-07 | 2022-07-01 | 西安交通大学 | Supercritical water oxidation multi-stage treatment system and method for organic waste |
| CN115159757B (en) * | 2022-07-06 | 2023-07-25 | 深圳市华尔信环保科技有限公司 | Supercritical water gasification reaction system for high-salt organic wastewater |
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