CN108225037A - The UTILIZATION OF VESIDUAL HEAT IN and flue gas purification system of a kind of electrolysis flue gas - Google Patents
The UTILIZATION OF VESIDUAL HEAT IN and flue gas purification system of a kind of electrolysis flue gas Download PDFInfo
- Publication number
- CN108225037A CN108225037A CN201810175848.6A CN201810175848A CN108225037A CN 108225037 A CN108225037 A CN 108225037A CN 201810175848 A CN201810175848 A CN 201810175848A CN 108225037 A CN108225037 A CN 108225037A
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- Prior art keywords
- flue gas
- electrolysis
- electrolysis flue
- boiler
- heat
- Prior art date
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Links
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 132
- 239000003546 flue gas Substances 0.000 title claims abstract description 132
- 238000005868 electrolysis reaction Methods 0.000 title claims abstract description 104
- 238000000746 purification Methods 0.000 title claims abstract description 39
- 238000011084 recovery Methods 0.000 claims abstract description 21
- 239000003517 fume Substances 0.000 claims abstract description 17
- 239000007789 gas Substances 0.000 claims abstract description 16
- 238000012545 processing Methods 0.000 claims abstract description 14
- 239000000779 smoke Substances 0.000 claims abstract description 14
- 230000001105 regulatory effect Effects 0.000 claims description 20
- 239000012716 precipitator Substances 0.000 claims description 10
- 239000002918 waste heat Substances 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims description 6
- 239000000498 cooling water Substances 0.000 claims description 4
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 abstract description 4
- 239000003344 environmental pollutant Substances 0.000 description 8
- 231100000719 pollutant Toxicity 0.000 description 8
- 230000007613 environmental effect Effects 0.000 description 7
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 6
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 5
- 239000003245 coal Substances 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- 235000019504 cigarettes Nutrition 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 241000790917 Dioxys <bee> Species 0.000 description 1
- 208000036119 Frailty Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 206010003549 asthenia Diseases 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000003500 flue dust Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/008—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases cleaning gases
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Treating Waste Gases (AREA)
- Air Supply (AREA)
Abstract
The invention discloses the UTILIZATION OF VESIDUAL HEAT INs and flue gas purification system of a kind of electrolysis flue gas,Main pipe is conveyed including electrolysis flue gas,If dry flue gas input channel and several fume afterheats utilize and purification branch,Wherein,The outlet of each flue gas input channel is connected with electrolysis flue gas conveying main pipe,Each fume afterheat utilizes and purification branch includes coal-burning boiler,Heat recovery heat exchanger and smoke processing system,Wherein,The entrance that electrolysis flue gas conveying main pipe utilized and purified air preheater in coal-burning boiler back-end ductwork in branch with each fume afterheat is connected,The back-end ductwork outlet of coal-burning boiler is connected with the heat release side entrance of heat recovery heat exchanger,The heat release side outlet of heat recovery heat exchanger is connected with smoke processing system,The system can realize UTILIZATION OF VESIDUAL HEAT IN and the gas cleaning of electrolysis flue gas,And floor space,Initial investment and operating cost are low.
Description
Technical field
The invention belongs to filed of flue gas purification in electrolysis industry, are related to UTILIZATION OF VESIDUAL HEAT IN and the gas cleaning of a kind of electrolysis flue gas
System.
Background technology
Since 2015, China promoted the minimum discharge of coal motor group to be transformed on a large scale.After transformation, the dioxy of coal-burning power plant
Change sulphur, nitrogen oxides and soot emissions limit value reduces by 83%, 50% and 67% than discharging standards respectively, reaches plant gas
Emission level.At present, national more than 50% unit completes transformation, and China has built up the clean and effective coal electricity system of global maximum.
While coal electricity industry pollutant continues emission reduction, the requirement of minimum discharge has also expanded to non-electrical industry from power industry；At present,
Continuing emission reduction compared to coal electricity industry pollutant, non-electrical industry is increasing to China's disposal of pollutants accounting, wherein, sulfur dioxide,
Nitrogen oxides, smoke-dust discharge capacity account for the whole nation more than 3/4.It in the recent period will modification steel, building materials, coloured, coalification, petrochemical industry, coking
Etc. industries pollutant emission standard, the revision of standard will accelerate the air environment protection treating of non-electrical industry.
According to the special emission limit of aluminum i ndustry pollutant emission standard (GB 25465-2010 modification single), specified in
The emission limit of electrolytic aluminium factory sulfur dioxide is 100mg/m3.《Aluminum i ndustry pollutant emission standard》(GB25465-2010) it changes
It is singly Chinese Ministry of Environmental Protection and publication on December 17th, 2013, is pair《Aluminum i ndustry pollutant emission standard》(GB25465-2010) benefit
It fills, increases the special emission limit of atmosphere pollution in a standard.Its purpose put into effect is wanted according to what national environmental protection worked
It asks, territorial development density is higher, environmental bearing capacity starts to weaken or atmospheric environment capacity is smaller, ecological environment frailty, holds
The easy area that serious atmospheric problem of environmental pollution occurs and needs to take special protection measure should strictly control the pollutant of enterprise
Discharge behavior, the enterprise in above-mentioned area perform the special emission limit of atmosphere pollution of special provision.
Many enterprises of current electrolysis industry have completed or have implemented the transformation of environmental protection facility, new tighter to meet
The environmental protection standard requirement of lattice.Smoke Gas Purity by Electrolysis main path is newly-built purification processing facility, and electrolysis flue gas is directly set through environmental protection
Air is discharged into after putting purified treatment.The emission level of plant gas can also be reached in this way, but result in electrolysis flue gas environmental protection and set
Put the problems such as occupation of land scale is big, initial investment is big, operating cost is high.
Invention content
The shortcomings that it is an object of the invention to overcome the above-mentioned prior art, provide a kind of electrolysis flue gas UTILIZATION OF VESIDUAL HEAT IN and
Flue gas purification system, the system can realize UTILIZATION OF VESIDUAL HEAT IN and the gas cleaning of electrolysis flue gas, and floor space, initial investment
And operating cost is low.
In order to achieve the above objectives, the UTILIZATION OF VESIDUAL HEAT IN of electrolysis flue gas of the present invention and flue gas purification system include electrolysis cigarette
If gas conveying main pipe, dry flue gas input channel and several fume afterheats utilize and purification branch, wherein, each flue gas input channel
Outlet is connected with electrolysis flue gas conveying main pipe, and each fume afterheat utilizes and purification branch includes coal-burning boiler, waste heat recovery
Heat exchanger and smoke processing system, wherein, electrolysis flue gas conveying main pipe utilizes and purifies coal-fired pot in branch with each fume afterheat
The entrance of air preheater is connected in stove back-end ductwork, the back-end ductwork outlet of coal-burning boiler and putting for heat recovery heat exchanger
Hot side entrance is connected, and the heat release side outlet of heat recovery heat exchanger is connected with smoke processing system.
Electrolysis flue gas booster fan and electrolysis flue gas shut-off valve are both provided on each flue gas input channel.
Electrolysis flue gas auxiliary purification device is further included, wherein, the entrance of electrolysis flue gas auxiliary purification device is through electrolysis flue gas
Additional mechanical supercharging wind turbine and electrolysis flue gas auxiliary adjustment valve are connected with electrolysis flue gas conveying main pipe, electrolysis flue gas auxiliary purification device
Outlet and electrolysis flue gas auxiliary chimney be connected.
Fume afterheat utilizes and purification branch further includes boiler air-supply regulating valve, boiler fan, electrolysis flue gas First air
Regulating valve and boiler primary air fan, wherein, boiler air-supply regulating valve one end and electrolysis flue gas First air regulating valve one end with
Electrolysis flue gas conveying main pipe is connected, and the other end of boiler air-supply regulating valve is connected with the entrance of boiler fan, is electrolysed cigarette
The other end of gas First air regulating valve is connected with the entrance of boiler primary air fan, the outlet of boiler primary air fan and boiler air-supply
Entrance of the outlet of machine with air preheater in coal-burning boiler back-end ductwork is connected.
The smoke processing system includes electric precipitator, desulfurizer and chimney, wherein, the heat release of heat recovery heat exchanger
Side outlet is connected successively through electric precipitator and desulfurizer with the entrance of chimney.
The outlet of electric precipitator is connected through exhaust gas volumn controllable register and air-introduced machine with the entrance of desulfurizer.
The heat absorption side entrance of heat recovery heat exchanger is communicated with cooling water booster.
The invention has the advantages that：
The UTILIZATION OF VESIDUAL HEAT IN and flue gas purification system of electrolysis flue gas of the present invention are in concrete operations, electrolysis flue gas conveying
It is heated in the air preheater that electrolysis flue gas in main pipe is entered in coal-burning boiler back-end ductwork, then as combustion-supporting sky
Gas is entered in coal-burning boiler, and the flue gas of coal-burning boiler output enters in heat recovery heat exchanger the recycling for carrying out waste heat, so
Afterwards again through smoke processing system progress purified treatment, UTILIZATION OF VESIDUAL HEAT IN and gas cleaning so as to fulfill electrolysis flue gas, in addition, it is necessary to
Illustrate, the smoke processing system in the present invention is the smoke processing system that existing coal-burning boiler carries, therefore saves electrolysis
The up-front investment cost of fume treatment, floor space is small, operating cost is low.In addition, since temperature of electrolysis flue gas is higher, it is electrolysed cigarette
Gas can increase the exhaust gas temperature of air preheater after entering air preheater, so that the thermal energy of electrolysis flue gas is transferred to coal-fired pot
In the smoke evacuation of stove, the recycling of heat is then carried out through heat recovery heat exchanger again, so as to improve the thermal efficiency of coal unit, simultaneously
Save the steam air heater for heating air.
Description of the drawings
Fig. 1 is the structural diagram of the present invention.
Wherein, 1 be electrolysis flue gas booster fan, 2 be electrolysis flue gas shut-off valve, 3 be electrolysis flue gas conveying main pipe, 4 be electricity
Solution flue gas auxiliary adjustment valve, 5 be electrolysis flue gas additional mechanical supercharging wind turbine, 6 be electrolysis flue gas auxiliary purification device, 7 be electrolysis flue gas
Auxiliary chimney, 8 be boiler blow regulating valve, 9 be boiler fan, 10 be electrolysis flue gas First air regulating valve, 11 be boiler one
Secondary wind turbine, 12 be coal-burning boiler, 13 be air preheater, 14 be heat recovery heat exchanger, 15 be electric precipitator, 16 be exhaust gas volumn
Controllable register, 17 be air-introduced machine, 18 be desulfurizer, 19 be chimney, 20 be cooling water booster.
Specific embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings：
With reference to figure 1, the UTILIZATION OF VESIDUAL HEAT IN and flue gas purification system of electrolysis flue gas of the present invention are conveyed including electrolysis flue gas
If main pipe 3, dry flue gas input channel and several fume afterheats utilize and purification branch, wherein, the outlet of each flue gas input channel
It is connected with electrolysis flue gas conveying main pipe 3, each fume afterheat utilizes and purification branch includes coal-burning boiler 12, waste heat recovery is changed
Hot device 14 and smoke processing system, wherein, electrolysis flue gas conveying main pipe 3 utilizes and purifies coal-fired pot in branch with each fume afterheat
The entrance of air preheater 13 is connected in 12 back-end ductwork of stove, and back-end ductwork outlet and the waste heat recovery of coal-burning boiler 12 exchange heat
The heat release side entrance of device 14 is connected, and the heat release side outlet of heat recovery heat exchanger 14 is connected with smoke processing system；Waste heat
The heat absorption side entrance of recycling heat exchanger 14 is communicated with cooling water booster 20.In addition, it is both provided with electricity on each flue gas input channel
Solve flue gas booster fan 1 and electrolysis flue gas shut-off valve 2.
The invention also includes electrolysis flue gas auxiliary purification device 6, wherein, the entrance warp of electrolysis flue gas auxiliary purification device 6
Electrolysis flue gas additional mechanical supercharging wind turbine 5 and electrolysis flue gas auxiliary adjustment valve 4 are connected with electrolysis flue gas conveying main pipe 3, electrolysis flue gas
The outlet of auxiliary purification device 6 is connected with electrolysis flue gas auxiliary chimney 7.
It is primary that fume afterheat utilization and purification branch further include boiler air-supply regulating valve 8, boiler fan 9, electrolysis flue gas
Wind regulating valve 10 and boiler primary air fan 11, wherein, boiler air-supply one end of regulating valve 8 and electrolysis flue gas First air regulating valve 10
One end and electrolysis flue gas conveying main pipe 3 be connected, the entrance phase of the other end and boiler fan 9 of boiler air-supply regulating valve 8
Connection, the other end of electrolysis flue gas First air regulating valve 10 are connected with the entrance of boiler primary air fan 11, boiler primary air fan
The entrance of 11 outlet and the outlet of boiler fan 9 with air preheater 13 in 12 back-end ductwork of coal-burning boiler is connected.
The smoke processing system includes electric precipitator 15, desulfurizer 18 and chimney 19, wherein, heat recovery heat exchanger
14 heat release side outlet is connected successively through electric precipitator 15 and desulfurizer 18 with the entrance of chimney 19, wherein, deduster 15
Outlet be connected through exhaust gas volumn controllable register 16 and air-introduced machine 17 with the entrance of desulfurizer 18.
The present invention specific work process be：
Electrolysis flue gas enters electrolysis flue gas conveying main pipe 3 through electrolysis flue gas booster fan 1 and electrolysis flue gas shut-off valve 2
In, the electrolysis flue gas in electrolysis flue gas conveying main pipe 3 enters coal-burning boiler 12 through boiler primary air fan 11 and boiler fan 9
It is heated in air preheater 13 in back-end ductwork, the electrolysis flue gas after heating is entered in coal-burning boiler 12 and helped
Combustion, the flue gas that coal-burning boiler 12 exports cools down through heat recovery heat exchanger 14,15 dedusting of electric precipitator, after 18 desulfurization of desulfurizer
It is discharged from chimney 19.
In addition, it to be deposited during maintenance when there are extra electrolysis flue gas or coal-burning boiler 12 in electrolysis flue gas conveying main pipe 3
In electrolysis flue gas, then electrolysis flue gas auxiliary adjustment valve 4 and electrolysis flue gas additional mechanical supercharging wind turbine 5 are opened, conveys electrolysis flue gas
It is auxiliary that electrolysis flue gas in main pipe 3 through electrolysis flue gas auxiliary adjustment valve 4 and electrolysis flue gas additional mechanical supercharging wind turbine 5 enters electrolysis flue gas
It helps in purifier 6, is then discharged after the purification of electrolysis flue gas auxiliary purification device 6 from electrolysis flue gas auxiliary chimney 7 again.
O in electrolysis flue gas2For 20% or so, SO2For 300mg/m3Left and right, H2O content is 2% or so, HF is 3% or so,
Flue dust is 10mg/m3Left and right, remaining ingredient are N2And CO2, the temperature of flue gas is 90 DEG C or so, wherein, O2Content is than in air
Content low about 1%, the higher electrolysis flue gas of temperature is sent into coal-burning boiler 12 as combustion air by the present invention, to reach energy saving
Purpose, while using 18 increase-volume of desulfurizer of existing coal-burning boiler 12, without repeated construction desulfurizer 18, saving is set
Standby investment.
Claims (7)
1. the UTILIZATION OF VESIDUAL HEAT IN and flue gas purification system of a kind of electrolysis flue gas, which is characterized in that convey main pipe including electrolysis flue gas
(3) if, dry flue gas input channel and several fume afterheats utilize and purification branch, wherein, the outlet of each flue gas input channel with
Electrolysis flue gas conveying main pipe (3) is connected, and each fume afterheat utilizes and purification branch includes coal-burning boiler (12), waste heat recovery
Heat exchanger (14) and smoke processing system, wherein, electrolysis flue gas conveying main pipe (3) is utilized with each fume afterheat and is purified in branch
The entrance of air preheater (13) is connected in coal-burning boiler (12) back-end ductwork, the outlet of the back-end ductwork of coal-burning boiler (12) with
The heat release side entrance of heat recovery heat exchanger (14) is connected, the heat release side outlet and fume treatment of heat recovery heat exchanger (14)
System is connected.
2. the UTILIZATION OF VESIDUAL HEAT IN and flue gas purification system of electrolysis flue gas according to claim 1, which is characterized in that each flue gas is defeated
Enter to be both provided with electrolysis flue gas booster fan (1) and electrolysis flue gas shut-off valve (2) on pipeline.
3. the UTILIZATION OF VESIDUAL HEAT IN and flue gas purification system of electrolysis flue gas according to claim 1, which is characterized in that further include electricity
Flue gas auxiliary purification device (6) is solved, wherein, the entrance of electrolysis flue gas auxiliary purification device (6) is through electrolysis flue gas additional mechanical supercharging wind
Machine (5) and electrolysis flue gas auxiliary adjustment valve (4) are connected with electrolysis flue gas conveying main pipe (3), electrolysis flue gas auxiliary purification device
(6) outlet is connected with electrolysis flue gas auxiliary chimney (7).
4. the UTILIZATION OF VESIDUAL HEAT IN and flue gas purification system of electrolysis flue gas according to claim 1, which is characterized in that fume afterheat
Using and purification branch further include boiler air-supply regulating valve (8), boiler fan (9), electrolysis flue gas First air regulating valve (10)
And boiler primary air fan (11), wherein, one end of boiler air-supply regulating valve (8) and the one of electrolysis flue gas First air regulating valve (10)
End is connected with electrolysis flue gas conveying main pipe (3), the other end of boiler air-supply regulating valve (8) and the entrance of boiler fan (9)
It is connected, the other end of electrolysis flue gas First air regulating valve (10) is connected with the entrance of boiler primary air fan (11), boiler one
The outlet of secondary wind turbine (11) and the outlet of boiler fan (9) with air preheater (13) in coal-burning boiler (12) back-end ductwork
Entrance be connected.
5. the UTILIZATION OF VESIDUAL HEAT IN and flue gas purification system of electrolysis flue gas according to claim 1, which is characterized in that the flue gas
Processing system includes electric precipitator (15), desulfurizer (18) and chimney (19), wherein, the heat release of heat recovery heat exchanger (14)
Side outlet is connected successively through electric precipitator (15) and desulfurizer (18) with the entrance of chimney (19).
6. the UTILIZATION OF VESIDUAL HEAT IN and flue gas purification system of electrolysis flue gas according to claim 5, which is characterized in that electric precipitator
(15) outlet is connected through exhaust gas volumn controllable register (16) and air-introduced machine (17) with the entrance of desulfurizer (18).
7. the UTILIZATION OF VESIDUAL HEAT IN and flue gas purification system of electrolysis flue gas according to claim 1, which is characterized in that waste heat recovery
The heat absorption side entrance of heat exchanger (14) is communicated with cooling water booster (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810175848.6A CN108225037B (en) | 2018-03-02 | 2018-03-02 | Waste heat utilization and flue gas purification system of electrolysis flue gas |
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| CN201810175848.6A CN108225037B (en) | 2018-03-02 | 2018-03-02 | Waste heat utilization and flue gas purification system of electrolysis flue gas |
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| CN108225037B CN108225037B (en) | 2023-11-10 |
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| CN109340740A (en) * | 2018-09-25 | 2019-02-15 | 北京铝能清新环境技术有限公司 | A kind of flue gas, which is mixed, burns treatment process and its processing equipment |
| CN109612288A (en) * | 2019-01-25 | 2019-04-12 | 平湖旗滨玻璃有限公司 | The control method of smoke processing system and smoke processing system |
| CN112097287A (en) * | 2019-06-17 | 2020-12-18 | 王键 | Boiler energy-saving and flue gas whitening system, process and application |
| CN114837649A (en) * | 2022-04-29 | 2022-08-02 | 中联煤层气国家工程研究中心有限责任公司 | Coal bed gas separation system and process |
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| CN112097287A (en) * | 2019-06-17 | 2020-12-18 | 王键 | Boiler energy-saving and flue gas whitening system, process and application |
| CN112097287B (en) * | 2019-06-17 | 2022-09-30 | 重庆鑫顺盛达科技有限公司 | Boiler energy-saving and flue gas whitening system, process and application |
| CN114837649A (en) * | 2022-04-29 | 2022-08-02 | 中联煤层气国家工程研究中心有限责任公司 | Coal bed gas separation system and process |
| CN114837649B (en) * | 2022-04-29 | 2023-09-26 | 中联煤层气国家工程研究中心有限责任公司 | Coal bed gas separation system and process |
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