CN106642087A - CO2 zero emission method and CO2 zero emission system achieving interaction between fossil fuel and biomass energy - Google Patents
CO2 zero emission method and CO2 zero emission system achieving interaction between fossil fuel and biomass energy Download PDFInfo
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- CN106642087A CN106642087A CN201611190947.9A CN201611190947A CN106642087A CN 106642087 A CN106642087 A CN 106642087A CN 201611190947 A CN201611190947 A CN 201611190947A CN 106642087 A CN106642087 A CN 106642087A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C9/00—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber
- F23C9/06—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber for completing combustion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
- F23B90/00—Combustion methods not related to a particular type of apparatus
- F23B90/04—Combustion methods not related to a particular type of apparatus including secondary combustion
- F23B90/06—Combustion methods not related to a particular type of apparatus including secondary combustion the primary combustion being a gasification or pyrolysis in a reductive atmosphere
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
- F23J15/022—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/06—Arrangements of devices for treating smoke or fumes of coolers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L7/00—Supplying non-combustible liquids or gases, other than air, to the fire, e.g. oxygen, steam
- F23L7/007—Supplying oxygen or oxygen-enriched air
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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/30—Technologies for a more efficient combustion or heat usage
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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Combustion Of Fluid Fuel (AREA)
Abstract
The invention relates to a CO2 zero emission method and a CO2 zero emission system which achieve interaction between a fossil fuel and biomass energy. The CO2 zero emission system comprises an oxygen-enriched combustion boiler, a flue gas recirculation unit and a biomass pyrolysis gasification furnace, wherein the biomass pyrolysis gasification furnace inputs reactors from the flue gas recirculation unit, and outputs biomass gas after reaction; the oxygen-enriched combustion boiler inputs the biomass gas, the flue gas recirculation unit inputs recirculation flue gas, and after the reaction, flue gas is output to the flue gas recirculation unit. With the adoption of the CO2 zero emission system, the problem that the reutilization and economy of high-concentration CO2 flue gas generated in the oxygen-enriched combustion boiler are poor is solved, and interaction utilization of coal and the biomass fuel is realized.
Description
Technical field
The present invention relates to CO2Emission-reduction technology and biomass gasification technology, particularly one kind realize fossil fuel and biomass
The CO of energy interaction2Zero emission method, and the system for realizing above-mentioned discharge method.
Background technology
Climate change has become one of most severe, most far-reaching challenge of facing mankind, and the speedup of greenhouse effects surpasses significantly
Earth ecology warning line is crossed.In various greenhouse gases, CO2With the growing amount of its longer life-span and superelevation to greenhouse effects
Contribution it is maximum.China is maximum in the world coal production and country of consumption, according to China Statistical Yearbook in 2015,2014 I
State's energy resource consumption total amount is 42.6 hundred million tons of standard coals, and wherein coal consumption accounts for the 66% of total energy consumption, and substantial amounts of coal is used
During discharged substantial amounts of CO2, therefore solve CO during coal utilization2Trapping and the problem of sealing up for safekeeping be CO2In the weight of reduction of discharging
Weight.
Oxygen-enriched combustion technology is a kind of aflame CO2Trap and seal up for safekeeping utilization (CCUS) technology, oxygen-enriched combustion boiler energy
Obtain CO2Concentration is 80%-90% (dry flue gas concentration), the wet flue gas that water content is 30% or so, and usual manner is by CO2
Compression purification devices carry out eliminating water, dedusting, purifying and compression, obtain CO2For more than 95% CO2Liquid, then carry out landfill and seal up for safekeeping
Or utilize.The problem that this mode is present is：
1)CO2Liquid fills up the process of sealing up for safekeeping the risk of certain leakage, causes to pollute again, and to the danger of ecological environment
Evil cannot be estimated at present.Need to consume substantial amounts of manpower and materials in transportation is filled up, increased CO2Reduce discharging into
This.
2)CO2The power consumption of compression purification devices is big, accounts for 10% or so of whole oxygen-enriched combustion boiler generated energy, substantially reduces
The economy of oxygen-enriched combustion boiler.
The content of the invention
It is an object of the invention to provide a kind of CO for realizing fossil fuel and biomass energy interaction2Zero emission method and it is
System, to solve above-described at least one technical problem.
A kind of an aspect of of the present present invention, there is provided CO for realizing fossil fuel and biomass energy interaction2Zero discharging system, it is special
It is to include oxygen-enriched combustion boiler, flue gas recirculation unit and biomass pyrogenation gasification stove to levy, wherein：
The biomass pyrogenation gasification stove is input into reactant from the flue gas recirculation unit, and biomass pyrogenation gasification stove is anti-
Should after export biogas；
The oxygen-enriched combustion boiler is input into the biogas, and by flue gas recirculation unit input recycling cigarette
Gas, exports flue gas to the flue gas recirculation unit after reaction.
Further, the flue gas recirculation unit includes the first deduster, the partial fume of oxygen-enriched combustion boiler output
The biomass pyrogenation gasification stove is input into after the deduster as partial reaction thing.
Further, the flue gas recirculation unit includes heat exchanger, and the partial fume of oxygen-enriched combustion boiler output is passed through
The heat exchanger is lowered the temperature.
Further, the flue gas recirculation unit also includes the second deduster, condenser, recirculation blower and flue gas mistake
Filter,
Flue gas after being exchanged heat by heat exchanger is input into the second deduster, and condenser is input into after dedusting, and flue gas mistake is input into after condensation
Filter is filtered, and the supercharging of Jing recirculation blowers, is heated up after supercharging through the heat exchanger after filtration, as circulation cigarette after intensification
Gas is input into the oxygen-enriched combustion boiler.
Further, it is input into the biomass pyrogenation gasification as partial reaction thing by the partial fume after heat exchanger heat exchange
Stove.
Further, the flue gas recirculation unit includes air-separating plant, for producing oxygen, as partial reaction
Thing is input into the biomass pyrogenation gasification stove.
Further, system also includes heat exchanger, and the oxygen fraction that the air-separating plant is produced is also anti-as part
The oxygen-enriched combustion boiler is input into after answering thing heat exchanger heat exchange described in.
Another aspect of the present invention, also provides a kind of CO for realizing fossil fuel and biomass energy interaction2Zero emission method,
Including：
Generation is passed through into biomass pyrogenation gasification stove to be reacted, biogas are exported after reaction；
The biogas are passed through to oxygen-enriched combustion boiler, flue gas is exported after oxygen-enriched combusting；
The flue gas is partly input into the biomass pyrogenation gasification stove, another portion Jing after flue gas recirculation unit circulation
Divide input the oxygen-enriched combustion boiler.
Further, the partial fume of oxygen-enriched combustion boiler output is removed through the dust removal component of the flue gas recirculation unit
The biomass pyrogenation gasification stove is input into after dirt as partial reaction thing.
Further, oxygen-enriched combustion boiler output partial fume through the flue gas recirculation unit heat exchange and remove
Dirt part to exchange heat and be input into the biomass pyrogenation gasification stove as partial reaction thing with after dedusting.
By above-mentioned technical proposal, it is known that the beneficial effects of the present invention is：
(1) air is entered without any flue gas or biogas, realizes the zero-emission of carbon dioxide, solve oxygen-enriched combustion
The high concentration CO produced in burning boiler2The recycling problem of flue gas；
(2) the interactive efficient utilization of fossil fuel and biomass has been showed, biogas are passed through oxygen-enriched combustion boiler, reduce
The Fossil fuel consumption amount of oxygen-enriched combustion boiler, the high CO in part of oxygen-enriched combustion boiler2The flue gas of concentration and high-moisture is passed through
Pyrolysis gasification furnace, improves the efficiency of carbon con version of gasification of biomass；
(3) CO in oxygen-enriched combustion system is eliminated2Compression purification system, increased the economy of oxygen-enriched combustion system.
Description of the drawings
Fig. 1 is the CO for realizing fossil fuel and biomass energy interaction under the one embodiment according to the present invention2Zero-emission
Place system schematic diagram.
Fig. 2 is the CO for realizing fossil fuel and biomass energy interaction under second embodiment according to the present invention2Zero-emission
Place system schematic diagram.
Drawing reference numeral explanation：
Oxygen-enriched combustion boiler 1, heat exchanger 2, the first deduster 3, condenser 4, smoke filter 5, recirculation blower 6 is empty
Air separation 7, the second deduster 8, biomass pyrogenation gasification stove 9, flue gas recirculation unit 10
Specific embodiment
To make the object, technical solutions and advantages of the present invention become more apparent, below in conjunction with specific embodiment, and reference
Accompanying drawing, the present invention is described in further detail.Hereinafter, it will thus provide embodiment with describe in detail the present invention embodiment party
Case.Advantages of the present invention and effect will be more notable by content disclosed in this invention.The appended accompanying drawing of here explanation
Simplified and used as illustrating.Component count, shape and size shown in accompanying drawing can modify according to actual conditions, and
The configuration of component is likely more complexity.Also otherwise practice or application can be carried out in the present invention, and without departing from institute of the present invention
Under conditions of the spirit and the scope of definition, various change and adjustment can be carried out.
The principle of the embodiment of the present invention is：By by the coupling of oxygen-enriched combustion boiler and biomass pyrogenation gasification stove, inciting somebody to action
The high CO in part of oxygen-enriched combustion boiler2The flue gas of concentration, high-moisture and high temperature is passed through pyrolysis gasification furnace, and by hot gas gasification furnace
The biogas of generation are passed through oxygen-enriched combustion boiler, and whole system enters air, realizes without any flue gas or biogas
The zero-emission of carbon dioxide.Eliminate CO simultaneously2Compression purification devices, increased the economy of oxygen-enriched combusting.And by biology
Matter gas is passed through oxygen-enriched combustion boiler, reduces the Fossil fuel consumption amount of oxygen-enriched combustion boiler, and the part of oxygen-enriched combustion boiler is high
CO2The flue gas of concentration, high-moisture and high temperature is passed through pyrolysis gasification furnace, improves the efficiency of carbon con version of gasification of biomass, realizes
The interactive efficient utilization of fossil fuel and biomass.
The CO for realizing fossil fuel and biomass energy interaction of the embodiment of the present invention2Zero discharging system includes oxygen-enriched combusting pot
Stove 1, flue gas recirculation unit 10 and biomass pyrogenation gasification stove 9, wherein：Biomass pyrogenation gasification stove 9 is followed again from the flue gas
Input reactant of ring element 10 (such as including flue gas recycled and oxygen), output is biological after biomass pyrogenation gasification stove 9 reacts
Matter gas；Oxygen-enriched combustion boiler 1 is input into the biogas, and is input into flue gas recycled by the flue gas recirculation unit 10,
Flue gas is exported after reaction to the flue gas recirculation unit 10.
Fig. 1 is the CO for realizing fossil fuel and biomass energy interaction under the one embodiment according to the present invention2Zero-emission
Place system schematic diagram.The oxygen-enriched combusting for 25%-35%, oxygen-enriched combustion boiler such as oxygen concentration are carried out in oxygen-enriched combustion boiler 1
Can be coal-powder boiler oxygen-enriched combustion boiler or recirculating fluidized bed oxygen-enriched combustion boiler, oxygen-enriched combustion boiler produces high CO2Concentration
(CO in typical dry flue gas2Concentration is between 80%-90%), high-moisture (for example water content is 30% or so) and high temperature
(such as flue-gas temperature of recirculating fluidized bed oxygen-enriched combustion boiler is 850-950 DEG C, the flue-gas temperature of coal-powder boiler oxygen-enriched combustion boiler
For 1100-1300 DEG C) flue gas.
Flue gas is divided into two-way into after the flue in flue gas recirculation unit 10：A part sequentially passes through flue gas heat exchange
The deduster 3 (can e.g. adopt low temperature sack cleaner) of device 2 and first, subsequently into flue gas recycled pipeline, after Jing
Crossing condenser 8 carries out processed, for example, obtain dry flue gas recycled of the water content less than 5%；It is then passed through smoke filter 5
Further dedusting is carried out, such as the content of dust is less than 5% in flue gas recycled；Flue gas recycled after dehydration dedusting is entered
Recirculation blower 6 is pressurized, and the flue gas recycled and oxygen after supercharging is mixed in pipeline, and oxygen is separated by air and filled
The gaseous mixture for putting 7 generations, flue gas recycled and oxygen is preheated after flue gas heat-exchange unit, such as the mixed air temperature after preheating
Degree can reach 100-200 DEG C, if being divided into main line injection oxygen-enriched combustion boiler afterwards, as the oxygen agent needed for burning.Oxygen-enriched combustion
The steam that enamelware pot furnace system is produced will be generated electricity into steam turbine；Another part (for example may be used through second deduster 8
Being hot precipitator), after be directly injected into biomass pyrogenation gasification stove 9, pyrolysis gasification furnace 9 can be updraft type, downdraft, spacious
The mouth form such as formula or fluid bed, or air gasification or oxygen-rich gasification, oxygen is produced by air-separating plant 7.Existing
In some conventional air burning station boiler systems, air is replaced as oxidation by the use of oxygen and the mixing of partial recirculation flue gas
Agent, improves CO in tail flue gas2Concentration, to realize CO2The purpose of trapping.Using the oxygen of air-separating plant high-purity
(commonly reaching more than 95%), while leading back part of smoke from back-end ductwork using recirculation blower (referred to as recycles cigarette
Gas)；Burner hearth is passed through after oxygen and flue gas recycled are mixed in certain proportion, boiler can be coal-powder boiler or ciculation fluidized
Bed boiler；CO containing high concentration in the flue gas that afterbody is discharged after boiler combustion2And H2O, and a small amount of O2And SO2, NOx etc.
Pollutant；Partial fume except returning burner hearth, remainder flue gas just can obtain high concentration by dry and purification process
CO2, then can be carried out transporting, utilize or filling after compression, it is finally reached CO2Trapping and the purpose sealed up for safekeeping.It is of the invention real
Apply the CO in flue gas in example2And H2O participates in pyrolytic gasification reaction in pyrolysis gasification furnace.
The biogas that biomass pyrogenation gasification stove 9 is produced (mainly contain CO, CH4, H2Deng) oxygen-enriched combustion boiler will be passed through
1 and fossil fuel (coal, oil shale and coke etc.) participate in burning together, the pair such as biomass carbon that biomass pyrogenation gasification stove is produced
Product can be recycled as adsorbent etc..Equally can be effective using fossil energies such as regenerative resource replacement coals
Reduce CO2Discharge.Biomass energy is the important component part of regenerative resource, and the biomass utilization for holding water is to environment
The effect of protection can not be ignored.Biomass have that species is various, energy density is low, dispersion, the features such as volume is big, so its utilization
Technology receives the serious restriction of the links such as species, distribution, collection, transport, different geographical to be adapted to different biomass energy trans-utilizations
Technology.Three classes are roughly divided into biomass trans-utilization technology：Direct combustion power generation, biological industry natural gas processed, liquid processed
Fuel.Biomass pyrogenation gasification is one of biomass trans-utilization technology.The hydrocarbon oxygen in biomass is turned by gasification reaction
Combustible gas is turned to, high-grade combustion gas of generation both can directly be used for production, life, it is also possible to by internal combustion engine
Or gas turbine power generation, cogeneration of heat and power alliance is carried out, so as to the high-efficiency cleaning for realizing biomass is utilized.
In said system, by the way that oxygen-enriched combustion boiler 1 and biomass pyrogenation gasification stove 9 are coupled, without any flue gas or
Biogas enter air, realize the zero-emission of carbon dioxide, solve the high concentration CO produced in oxygen-enriched combustion boiler2Cigarette
The recycling problem of gas；The interactive efficient utilization of fossil fuel and biomass is realized, biogas are passed through oxygen-enriched combustion boiler,
Reduce the Fossil fuel consumption amount of oxygen-enriched combustion boiler, the high CO in part of oxygen-enriched combustion boiler2Concentration, high-moisture and high temperature
Flue gas be passed through pyrolysis gasification furnace, improve the efficiency of carbon con version of gasification of biomass；Eliminate the CO in oxygen-enriched combustion system2Compression
Purification system, increased the economy of oxygen-enriched combustion system.
Fig. 2 is the CO for realizing fossil fuel and biomass energy interaction under second embodiment according to the present invention2Zero-emission
Place system schematic diagram.
For example carry out the oxygen-enriched combusting that oxygen concentration is 25%-35% in oxygen-enriched combustion boiler 1, oxygen-enriched combustion boiler can be with
For coal-powder boiler oxygen-enriched combustion boiler or recirculating fluidized bed oxygen-enriched combustion boiler, the high CO of oxygen-enriched combustion boiler generation2Concentration (dry cigarette
CO in gas2Concentration is, for example, between 80%-90%), high-moisture (water content is for example 30% or so) and high temperature it is (ciculation fluidized
The flue-gas temperature of bed oxygen-enriched combustion boiler is, for example, 850-950 DEG C, and the flue-gas temperature of coal-powder boiler oxygen-enriched combustion boiler is 1100-
1300 DEG C) flue gas.
Flue gas enters cycling element 10, and sequentially passing through the deduster 3 of flue gas heat-exchange unit 2 and first carries out cooling dedusting, for example
Temperature is obtained for 135 DEG C or so, dustiness is less than 30mg/m3Flue gas, is then divided into two-way：It is partly into flue gas recycled pipe
Road, then processed is carried out through condenser 8, for example obtain dry flue gas recycled of the water content less than 5%；It is then passed through flue gas
Filter 5 carries out further dedusting, such as the content of dust is less than 5% in flue gas recycled；Recycling after dehydration dedusting
Flue gas is pressurized into recirculation blower 6, and the flue gas recycled and oxygen after supercharging is mixed, and oxygen is separated by air and filled
The gaseous mixture for putting 7 generations, flue gas recycled and oxygen is preheated after flue gas heat-exchange unit, such as the mixed air temperature after preheating
Degree can reach 100-200 DEG C, if being divided into main line injection oxygen-enriched combustion boiler afterwards, as the oxygen agent needed for burning.Oxygen-enriched combustion
The steam that enamelware pot furnace system is produced will be generated electricity into steam turbine；Another part is directly injected into biomass pyrolytic through pipeline
Gasification furnace 9.
The pyrolysis gasification furnace 9 of the embodiment of the present invention can be the forms such as updraft type, downdraft, opened type or fluid bed,
Can be produced by air-separating plant 7 for air gasification or oxygen-rich gasification, oxygen, the CO in flue gas2And H2O is in pyrolysis gas
Change and participate in stove pyrolytic gasification reaction, the biological flue gas that biomass pyrogenation gasification stove is produced (mainly contain CO, CH4, H2Deng) will be logical
Enter oxygen-enriched combustion boiler 1 and fossil fuel (coal, oil shale and coke etc.) participates in together burning, biomass pyrogenation gasification stove is produced
The byproduct such as biomass carbon can be recycled as adsorbent etc..
By above-described embodiment, the high concentration CO produced in oxygen-enriched combustion boiler is solved2The recycling and economy of flue gas
Property difference problem, realize the interaction utilization of coal and biomass fuel, and the zero-emission of carbon dioxide, the coal of real meaning
Efficiently, low emission is utilized.
Particular embodiments described above, has been carried out further in detail to the purpose of the present invention, technical scheme and beneficial effect
Describe in detail bright, it should be understood that the foregoing is only the specific embodiment of the present invention, be not limited to the present invention, it is all
Within the spirit and principles in the present invention, any modification, equivalent substitution and improvements done etc. should be included in the protection of the present invention
Within the scope of.
Claims (10)
1. it is a kind of to realize the CO that fossil fuel and biomass energy are interacted2Zero discharging system, it is characterised in that including oxygen-enriched combusting pot
Stove, flue gas recirculation unit and biomass pyrogenation gasification stove, wherein：
The biomass pyrogenation gasification stove is input into reactant from the flue gas recirculation unit, after the reaction of biomass pyrogenation gasification stove
Output biogas；
The oxygen-enriched combustion boiler is input into the biogas, and is input into flue gas recycled by the flue gas recirculation unit,
Flue gas is exported after reaction to the flue gas recirculation unit.
2. it is according to claim 1 to realize the CO that fossil fuel and biomass energy are interacted2Zero discharging system, it is characterised in that
The flue gas recirculation unit includes the first deduster, and the partial fume of oxygen-enriched combustion boiler output is made after the deduster
The biomass pyrogenation gasification stove is input into for partial reaction thing.
3. it is according to claim 1 to realize the CO that fossil fuel and biomass energy are interacted2Zero discharging system, it is characterised in that
The flue gas recirculation unit includes heat exchanger, and the partial fume of oxygen-enriched combustion boiler output is dropped through the heat exchanger
Temperature.
4. it is according to claim 3 to realize the CO that fossil fuel and biomass energy are interacted2Zero discharging system, it is characterised in that
The flue gas recirculation unit also includes the second deduster, condenser, recirculation blower and smoke filter,
Flue gas after being exchanged heat by heat exchanger is input into the second deduster, and condenser is input into after dedusting, and smoke filter is input into after condensation
Filter, the supercharging of Jing recirculation blowers, is heated up after supercharging through the heat exchanger after filtration, defeated as circulating flue gas after intensification
Enter the oxygen-enriched combustion boiler.
5. it is according to claim 3 to realize the CO that fossil fuel and biomass energy are interacted2Zero discharging system, it is characterised in that
Partial fume after being exchanged heat by heat exchanger is input into the biomass pyrogenation gasification stove as partial reaction thing.
6. it is according to claim 1 to realize the CO that fossil fuel and biomass energy are interacted2Zero discharging system, it is characterised in that
The flue gas recirculation unit includes air-separating plant, for producing oxygen, as partial reaction thing the biomass is input into
Pyrolysis gasification furnace.
7. it is according to claim 6 to realize the CO that fossil fuel and biomass energy are interacted2Zero discharging system, it is characterised in that
Also include heat exchanger, after the oxygen fraction that the air-separating plant is produced is also as the heat exchanger heat exchange described in of partial reaction thing
It is input into the oxygen-enriched combustion boiler.
8. it is a kind of to realize the CO that fossil fuel and biomass energy are interacted2Zero emission method, it is characterised in that include：
Generation is passed through into biomass pyrogenation gasification stove to be reacted, biogas are exported after reaction；
The biogas are passed through to oxygen-enriched combustion boiler, flue gas is exported after oxygen-enriched combusting；
The flue gas is partly input into the biomass pyrogenation gasification stove Jing after flue gas recirculation unit circulation, and another part is defeated
Enter the oxygen-enriched combustion boiler.
9. it is according to claim 8 to realize the CO that fossil fuel and biomass energy are interacted2Zero emission method, it is characterised in that
The partial fume of oxygen-enriched combustion boiler output is after the dust removal component dedusting of the flue gas recirculation unit as partial reaction
Thing is input into the biomass pyrogenation gasification stove.
10. it is according to claim 8 to realize the CO that fossil fuel and biomass energy are interacted2Zero emission method, its feature exists
In the output of, oxygen-enriched combustion boiler partial fume through the flue gas recirculation unit heat exchange and dust removal component exchange heat and remove
The biomass pyrogenation gasification stove is input into after dirt as partial reaction thing.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020174730A1 (en) * | 2019-02-28 | 2020-09-03 | 月島機械株式会社 | Apparatus and method for treating combustion exhaust gas |
| CN111909728A (en) * | 2020-08-13 | 2020-11-10 | 山东魏桥铝电有限公司 | System, method and application for gasification treatment of waste cathode carbon blocks of aluminum electrolysis cell and cooperation of coal oxygen-enriched combustion |
| CN112899000A (en) * | 2019-11-19 | 2021-06-04 | 上海工程技术大学 | Biomass waste volatile component catalytic oil shale dry distillation coupling system and method |
| CN114606023A (en) * | 2022-03-23 | 2022-06-10 | 华北电力大学 | Biomass negative carbon pyrolysis poly-generation system and method |
| KR20230123844A (en) * | 2022-02-17 | 2023-08-24 | 신유근 | Biomass burning system using pure oxygen combustion |
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