CN106731573A - Heat accumulating type natural gas boiler energy-saving denitration integral system - Google Patents
Heat accumulating type natural gas boiler energy-saving denitration integral system Download PDFInfo
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- CN106731573A CN106731573A CN201611226267.8A CN201611226267A CN106731573A CN 106731573 A CN106731573 A CN 106731573A CN 201611226267 A CN201611226267 A CN 201611226267A CN 106731573 A CN106731573 A CN 106731573A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/54—Nitrogen compounds
- B01D53/56—Nitrogen oxides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/75—Multi-step processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/79—Injecting reactants
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8621—Removing nitrogen compounds
- B01D53/8625—Nitrogen oxides
- B01D53/8631—Processes characterised by a specific device
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/90—Injecting reactants
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/20—Reductants
- B01D2251/206—Ammonium compounds
- B01D2251/2067—Urea
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
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- B01D2259/124—Liquid reactants
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Abstract
The present invention relates to a kind of heat accumulating type natural gas boiler energy-saving denitration integral system, including boiler body, I-tube combustion chamber, two groups of heat accumulating type neat gas burners, condensers, it uses heat accumulating type high temperature air combustion technology and SNCR and SCR combined denitration technologies, and denitrification reducing agent is sprayed using combustion chamber, reducing agent controls valve with reversal valve interlocking action control, protrude energy-saving effect of the invention, effectively save fuel；Environment protecting is protruded, flue gas nitrogen oxide discharge capacity reduction by more than 50%；Cost-effective substantially overall system architecture is compact to reduce production installation cost, combines the catalyst cost in out of stock technology reduction running.
Description
Technical field
The present invention relates to a kind of heat accumulating type natural gas boiler energy-saving denitration integral system, belong to Thermal Equipment, natural steam pot
Stove energy-conserving and environment-protective field.
Background technology
At present, all kinds of natural gas boilers typically use smoke-fire-tube or water-tube boiler, and metal consumption is big, in order to reduce smoke evacuation temperature
Degree, the substantial amounts of convection heating surface of conventional natural gas hot water's layout of boiler absorbs flue gas heat, due to natural gas have it is higher
Hydrogen content, therefore in combustion product contain a large amount of vapor, when using a large amount of convection heating surfaces when, if exhaust gas temperature mistake
It is low, a large amount of metal consumptive materials are not only consumed, while easily causing the tail flue gas of natural gas boiler to condense, causing corrosion occurs.This
Outward, used as clean fuel, compared with other fuel, sulfur dioxide and dust are few in its combustion product for natural gas, but nitrogen oxidation
Thing concentration is higher, if exhaust gas temperature is relatively low, its flue gas removing nitrogen oxides is very difficult.Heat storage type combustion is in application low heat value
Effect is fine during coal gas fuel, but when being applied to gas fuel, the reduction of nitrogen oxides in effluent just turns into one urgently
Improved technology.
Current low-nitrogen oxide discharging boiler combustion technology research is divided into three directions：Pretreatment to fuel and air；
Air and fuel are distributed rationally and low NO design；The post processing of flue gas.For fuel and the preprocess method of air
And flue gas processing method, due to system complex, the reasons such as big, occupation of land is big, operating cost is high are invested, it is middle or small for more scattered
Type boiler is not applied to simultaneously.Low NO suppress NO_x formation while, often bring efficiency of combustion it is relatively low, burning
Temperature reduction or excess air coefficient are improved, and bring boiler efficiency to reduce the problems such as being improved with operating cost.
The Chinese patent of Application No. 200810227754.5 discloses one kind can effectively be reduced natural gas boiler metal and disappear
Consume and realize the natural gas boiler system of the heat storage type combustion selective catalytic reduction flue gas denitration of flue gas removing nitrogen oxides, bag
Two for including boiler body, the U-tube combustion chamber being built in boiler body, being connected with U-tube burner ends with being respectively symmetrically
Two grades of heat accumulating type neat gas burners of individual alternation, two grades of heat accumulating type neat gas burners respectively by reversal valve with it is natural
Gas combustion air is connected with flue gas after burning；First order heat storage is provided with two grades of heat accumulating type neat gas burners, is stored
Thermocatalytic body and second level heat storage, are provided with reducing agent shower nozzle, reducing agent between first order heat storage and heat-storage catalytic body
Shower nozzle is connected with reducing agent control valve, and reducing agent control valve carries out interlocked control with four-way valve, when two grades of heat accumulating type natural gas combustions
When flowing through flue gas in burner, the injection of reducing agent shower nozzle, its closing when air is flowed through.
Natural gas boiler system uses SCR, and its denitration flow is short, and reducing agent mixes with flue gas and not enough fills
Point, denitration efficiency is relatively low and the escaping of ammonia is high；Heat storage type is commutated using four-way reversing valve, easily causes furnace internal pressure fluctuation
Greatly.
The Chinese patent of Application No. 201210134253.9 discloses a kind of oil and gas for reducing discharged nitrous oxides
Boiler and its method, including fuel channel, combustion-supporting wind pipeline, low NO, boiler body, smoke discharging pipe, chimney, circulation cigarette
Feed channel, combustion fan and water inlet pipe.The radiation heat transfer face area of boiler body reduces by 30%~50%, convection current compared with plain cylindrical furnace
Heat-transfer surface area increases by 15%~25%；15%~25% boiler low-temperature fume passes through circulating flue gas cooler, circulating flue gas
Enter combustion fan after pipeline, mix with fresh air and enter low NO as combustion air.The device and method passes through group
Knit burner hearth inside combustion with meagre oxygen and arrange low NO to reduce the generation of nitrogen oxides, low NO complex structure should
The amount that method can reduce generation nitrogen oxides in flue gas is limited.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of heat accumulating type natural gas boiler energy-saving denitration integral system,
Current conventional gas boiler high energy consumption, high fume temperature are solved, heat accumulating type natural gas boiler discharged nitrous oxides are high, denitration effect
Rate is low, denitrification is single, denitration high cost the problems such as.
In order to solve the above technical problems, heat accumulating type natural gas boiler energy-saving denitration integral system of the invention includes boiler
Body, I-tube combustion chamber, two groups of heat accumulating type neat gas burners, condensers, wherein：
I-tube combustion chamber is located inside boiler body, and SNCR reactions occur in I-tube combustion chamber；The two of boiler body
End is respectively arranged with two gas pipelines for stretching into I-tube combustion chamber；The two ends of boiler body are also respectively provided with two and stretch into I
The reducing agent pipeline of type combustion chamber tube, controls valve and compressed air piping to be connected with reducing agent, from reducing agent control valve input
Reducing agent sprays by reducing agent pipeline under the auxiliary of the compressed air that compressed air piping is input into in I-tube combustion chamber；
Boiler feed pipe, boiler discharging tube are additionally provided with boiler body；
Two groups of heat accumulating type neat gas burners are connected with the two ends of boiler body respectively, and pass through reversal valve and air respectively
Pipe, fume pipe connection, every group of heat accumulating type neat gas burner include two from being symmetrically installed that boiler body is gradually distance from respectively
High-temperature thermal storage body, denitration catalyst heat storage, low-temperature heat accumulating body, in I-tube combustion chamber produce flue gas after high-temperature thermal storage body
Into denitration catalyst heat storage, and there is SCR reactions in denitration catalyst heat storage；
Condenser is connected with fume pipe, and flue gas with 150 DEG C or so of temperature after reversal valve by entering condenser and with low
Discharged in 50 DEG C of temperature；
Reducing agent controls valve and commutation valve events interlocked control, when air is flowed into from left end heat accumulating type neat gas burner
When, left end reducing agent control valve injection reducing agent, right-hand member reducing agent control valve is closed, when air fires from right-hand member heat accumulating type natural gas
When burner is flowed into, right-hand member reducing agent control valve injection reducing agent, left end reducing agent control valve is closed；
By a commutation cycle, reversal valve automatic reverse.
Preferably, the reducing agent is that mass fraction is 10%-60% urea liquids.
Preferably, the reducing agent pipeline is inclined and installed, with heat accumulating type neat gas burner into 15-30 ° of angle.
Preferably, the commutation cycle is 40~100 seconds.
The heat accumulating type natural gas boiler energy-saving denitration integral system of said structure uses heat accumulating type high-temperature air burning skill
Art and SNCR and SCR combined denitration technologies, and denitrification reducing agent is using combustion chamber injection, reducing agent control valve and commutation
Valve interlocking action control, protrudes energy-saving effect of the invention, effectively save fuel；Environment protecting is protruded, flue gas nitrogen oxide
Discharge capacity reduction by more than 50%；Cost-effective obvious, overall system architecture is compact to reduce production installation cost, combines out of stock technology
Reduce the catalyst cost in running.
Brief description of the drawings
Fig. 1 is the schematic diagram of heat accumulating type natural gas boiler energy-saving denitration integral system of the invention.
Wherein, 1 is boiler body, and 2 is I-tube combustion chamber, and 3-1 is high-temperature thermal storage body, and 3-2 is denitration catalyst heat storage,
3-3 is low-temperature heat accumulating body, and 4 is reversal valve, and 5 is air hose, and 6 is fume pipe, and 7 is that reducing agent controls valve, and 8 is reducing agent pipeline, 9
It is compressed air piping, 10 is gas pipeline, and 11 is boiler feed pipe, and 12 is boiler discharging tube, and 13 is condenser.
Specific embodiment
As shown in figure 1, heat accumulating type natural gas boiler energy-saving denitration integral system of the invention includes：
Boiler body 1,2, two groups of I-tube combustion chamber heat accumulating type neat gas burner, condenser 13, wherein：
I-tube combustion chamber 2 is located inside boiler body 1, and SNCR reactions occur in I-tube combustion chamber 2；
The two ends of boiler body 1 are respectively arranged with two gas pipelines 10 for stretching into I-tube combustion chamber 2；
The two ends of boiler body 1 are also respectively provided with two reducing agent pipelines 8 for extending into I-tube combustion chamber 2, its with also
Former agent control valve 7 and compressed air piping 9 are connected, and are input into compressed air piping 9 from the reducing agent of the reducing agent control input of valve 7
Compressed air auxiliary under sprayed in I-tube combustion chamber 2 by reducing agent pipeline 8, the mass fraction of reducing agent is 10%-
60%；Reducing agent pipeline 8 is inclined to be installed, with heat accumulating type neat gas burner into 15-30 ° of angle；
Boiler feed pipe 11, boiler discharging tube 12 are additionally provided with boiler body 1；
The two ends of two groups of heat accumulating type neat gas burners 4 respectively with boiler body 1 are connected, and respectively by reversal valve 4 with
Air hose 5, fume pipe 6 are connected, i.e., when left end heat accumulating type neat gas burner is connected with air hose 5, right-hand member heat accumulating type is natural
Air burner is connected with fume pipe 6, and when left end heat accumulating type neat gas burner is connected with fume pipe 6, right-hand member heat accumulating type is natural
Air burner is connected with air hose 5, and every group of heat accumulating type neat gas burner respectively includes that two are gradually distance from from boiler body 1
High-temperature thermal storage body 3-1, denitration catalyst heat storage 3-2, the low-temperature heat accumulating body 3-3 being symmetrically installed, produce in I-tube combustion chamber 2
Flue gas enters generation SCR reactions in denitration catalyst heat storage 3-2 after high-temperature thermal storage body 3-1；
Condenser 13 is connected with fume pipe 6, flue gas by after reversal valve with 150 DEG C or so of temperature enter condenser and with
Temperature discharge less than 50 DEG C, the moisture in flue gas is condensed in this course；
Reducing agent controls valve 7 to act interlocked control with reversal valve 4, when air is flowed into from left end heat accumulating type neat gas burner
When, the left end reducing agent control injection reducing agent of valve 7, right-hand member reducing agent control valve 7 is closed, when air from right-hand member heat accumulating type natural gas
Combustor flow is fashionable, and the right-hand member reducing agent control injection reducing agent of valve 7, left end reducing agent control valve 7 is closed；
By a commutation cycle, reversal valve automatic reverse, air input changes therewith with fume emission.
Hereafter the operation principle to heat accumulating type natural gas boiler energy-saving denitration integral system of the invention is illustrated,
The heat accumulating type neat gas burner of left end is connected with air hose 5 in the present embodiment, the heat accumulating type neat gas burner and cigarette of right-hand member
Tracheae 6 is connected, i.e., air enters from left end, and the flue gas after burning is discharged from right-hand member.
Natural gas and air are respectively with 300~800m3/ h and 2000~9000m3The speed input of/h, in I-tube combustion chamber
Ignite in 2, mass fraction is that 10%~60% urea controls valve 7, reducing agent pipeline 8 and in compression by the reducing agent of left end
It is ejected into I-tube combustion chamber under the auxiliary of the compressed air of the input of air duct 9, the flue gas produced with combustion of natural gas mixes
Generation SNCR (SNCR) denitration, realizes the reduction of nitrogen oxides in I types combustion chamber；Flue gas is successively afterwards
High-temperature thermal storage body 3-1, denitration catalyst heat storage 3-2 into right-hand member, low-temperature heat accumulating body 3-3, high-temperature thermal storage body 3-1 absorb heat and store
There is SCR (SCR) denitration in heat, out of stock catalytic thermal storage body 3-2, further reduce nitrogen oxides, Low Temperature Storage
Hot body 3-3 heat absorptions and accumulation of heat；Flue gas enters condenser 13 with 150 DEG C or so of temperature through reversal valve 4 by fume pipe 6 afterwards,
There is the moisture in condensation recovered flue gas in condenser 13, final flue gas is discharged with the temperature less than 50 DEG C.
By reversal valve automatic reverse after a commutation cycle, heat accumulating type neat gas burner and the fume pipe 6 of left end connect
Connect, the heat accumulating type neat gas burner of right-hand member is connected with air hose 5, i.e., air is input into from right-hand member, flue gas after burning is from left end
Discharge, now goes up the high-temperature thermal storage body 3-1 and low-temperature heat accumulating body 3-3 heat releases absorbed heat during one, and the air preheat that will be input into is extremely
Close to or up ignition temperature, energy-conservation purpose is realized.
Heat accumulating type natural gas boiler energy-saving denitration integral system of the invention uses heat accumulating type natural gas boiler system, empty
Gas and natural gas alternately from two ends input, realize the heat absorption and heat release of heat accumulating type neat gas burner, the heat in recovered flue gas
For the gas preheater that will be input into, compared to U-tube combustion chamber, more uniform temperature in I-tube combustion chamber, therefore burning are more filled
Point, realize energy-conservation, save fuel purpose.Meanwhile, it is of the invention to reducing agent is sprayed into I-tube combustion chamber, in I-tube combustion chamber
Generation SNCR denitration and there is SCR denitration in heat accumulating type neat gas burner, combine out of stock technology with SNCR and SCR, both
The content of nitrogen oxides in effluent can be reduced, makes nitrogen oxides in effluent discharge capacity reduction by more than 50%, realize environmentally friendly purpose, and
Denitrating catalyst cost can be reduced.By the way that reducing agent pipeline is set to be installed into 15-30 ° of angle with heat accumulating type neat gas burner
Mode, make reducing agent spray into after it is long with the mixture length of flue gas, contact more fully, raising SNCR denitration efficiency, further
Reduce the escaping of ammonia degree.Condenser is arranged on flue after reversal valve, condensed water in recovered flue gas reduces fume emission temperature
Degree, the heat in abundant recovered flue gas further improves energy-saving effect.
The preferred embodiments of the disclosure and embodiment are explained in detail above in conjunction with accompanying drawing, but it is of the invention
The above-described embodiment and examples are not limited to, in the ken that those skilled in the art possess, can also not taken off
Various changes can be made on the premise of the present inventive concept.
Claims (5)
1. a kind of heat accumulating type natural gas boiler energy-saving denitration integral system, including boiler body, I-tube combustion chamber, two groups of storages
Hot type neat gas burner, condenser, wherein：
I-tube combustion chamber is located inside boiler body, and SNCR reactions occur in I-tube combustion chamber；The two ends of boiler body point
Two gas pipelines for stretching into I-tube combustion chamber are not provided with；The two ends of boiler body are also respectively provided with two and stretch into I-tube
The reducing agent pipeline of combustion chamber, controls valve and compressed air piping to be connected with reducing agent, from the reduction of reducing agent control valve input
Agent is sprayed by reducing agent pipeline under the auxiliary of the compressed air that compressed air piping is input into in I-tube combustion chamber；Boiler
Boiler feed pipe, boiler discharging tube are additionally provided with body；
Two groups of heat accumulating type neat gas burners are connected with the two ends of boiler body respectively, and respectively by reversal valve and air hose,
Fume pipe is connected, every group of heat accumulating type neat gas burner include respectively two high-temperature thermal storage bodies being gradually distance from from boiler body,
Denitration catalyst heat storage, low-temperature heat accumulating body, the flue gas produced in I-tube combustion chamber store after high-temperature thermal storage body into denitration catalyst
Hot body, and there is SCR reactions in denitration catalyst heat storage；
Condenser is connected with fume pipe, and flue gas with 150 DEG C or so of temperature after reversal valve by entering condenser and with less than 50
DEG C temperature discharge；
Reducing agent controls valve and commutation valve events interlocked control, left when air is flowed into from left end heat accumulating type neat gas burner
End reducing agent control valve injection reducing agent, right-hand member reducing agent control valve is closed, when air from right-hand member heat accumulating type neat gas burner
During inflow, right-hand member reducing agent control valve injection reducing agent, left end reducing agent control valve is closed；
By a commutation cycle, reversal valve automatic reverse.
2. heat accumulating type natural gas boiler energy-saving denitration integral system according to claim 1, it is characterised in that it is described also
Former agent is that mass fraction is 10%-60% urea liquids.
3. heat accumulating type natural gas boiler energy-saving denitration integral system according to claim 1, it is characterised in that reducing agent
Pipeline is inclined to be installed, with heat accumulating type neat gas burner into 15-30 ° of angle.
4. heat accumulating type natural gas boiler energy-saving denitration integral system according to claim 1, it is characterised in that described to change
It it is 40~100 seconds to the cycle.
5. heat accumulating type natural gas boiler energy-saving denitration integral system according to claim 1, it is characterised in that every group high
Intermediate temperature regenerator body, denitration catalyst heat storage, low-temperature heat accumulating body are installed by axisymmetrical of air inlet/outlet pipe.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611226267.8A CN106731573A (en) | 2016-12-27 | 2016-12-27 | Heat accumulating type natural gas boiler energy-saving denitration integral system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611226267.8A CN106731573A (en) | 2016-12-27 | 2016-12-27 | Heat accumulating type natural gas boiler energy-saving denitration integral system |
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| CN106731573A true CN106731573A (en) | 2017-05-31 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108036665A (en) * | 2017-12-29 | 2018-05-15 | 中钢集团鞍山热能研究院有限公司 | Carbon baking furnace flue gas pollutant thermal accumulating incinerator and its processing method |
| CN109915824A (en) * | 2019-03-29 | 2019-06-21 | 烟台龙源电力技术股份有限公司 | Combustion system |
| CN109945667A (en) * | 2019-04-11 | 2019-06-28 | 重庆赛迪热工环保工程技术有限公司 | A kind of low NOx heat-storage type burner and its control method |
| CN112410087A (en) * | 2020-11-18 | 2021-02-26 | 江苏沃特优新能源科技有限公司 | Catalyst gasification device and energy-saving integrated combustion-supporting equipment with same |
| CN112827335A (en) * | 2020-12-22 | 2021-05-25 | 四川天采科技有限责任公司 | Low NOXNatural gas hydrogen production process with flue gas emission |
| CN114653182A (en) * | 2022-03-28 | 2022-06-24 | 山东一然环保科技有限公司 | Energy-conserving high-efficient compound denitration device |
-
2016
- 2016-12-27 CN CN201611226267.8A patent/CN106731573A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108036665A (en) * | 2017-12-29 | 2018-05-15 | 中钢集团鞍山热能研究院有限公司 | Carbon baking furnace flue gas pollutant thermal accumulating incinerator and its processing method |
| CN109915824A (en) * | 2019-03-29 | 2019-06-21 | 烟台龙源电力技术股份有限公司 | Combustion system |
| CN109945667A (en) * | 2019-04-11 | 2019-06-28 | 重庆赛迪热工环保工程技术有限公司 | A kind of low NOx heat-storage type burner and its control method |
| CN112410087A (en) * | 2020-11-18 | 2021-02-26 | 江苏沃特优新能源科技有限公司 | Catalyst gasification device and energy-saving integrated combustion-supporting equipment with same |
| CN112410087B (en) * | 2020-11-18 | 2021-11-12 | 江苏沃特优新能源科技有限公司 | Catalyst gasification device and energy-saving integrated combustion-supporting equipment with same |
| CN112827335A (en) * | 2020-12-22 | 2021-05-25 | 四川天采科技有限责任公司 | Low NOXNatural gas hydrogen production process with flue gas emission |
| CN114653182A (en) * | 2022-03-28 | 2022-06-24 | 山东一然环保科技有限公司 | Energy-conserving high-efficient compound denitration device |
| CN114653182B (en) * | 2022-03-28 | 2023-11-28 | 山东一然环保科技有限公司 | Energy-saving efficient composite denitration device |
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