CN110479062A - A kind of biomass absorbent materials purification processing flue gas system - Google Patents
A kind of biomass absorbent materials purification processing flue gas system Download PDFInfo
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- CN110479062A CN110479062A CN201910779087.XA CN201910779087A CN110479062A CN 110479062 A CN110479062 A CN 110479062A CN 201910779087 A CN201910779087 A CN 201910779087A CN 110479062 A CN110479062 A CN 110479062A
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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
- B01D53/02—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 by adsorption, e.g. preparative gas chromatography
- B01D53/04—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 by adsorption, e.g. preparative gas chromatography with stationary adsorbents
-
- 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
-
- 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
- B01D53/8628—Processes characterised by a specific catalyst
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
- C10B53/02—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form of cellulose-containing material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/30—Sulfur compounds
- B01D2257/302—Sulfur oxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/50—Carbon oxides
- B01D2257/504—Carbon dioxide
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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
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2220/00—Aspects relating to sorbent materials
- B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
- B01J2220/48—Sorbents characterised by the starting material used for their preparation
- B01J2220/4812—Sorbents characterised by the starting material used for their preparation the starting material being of organic character
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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
- Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
- Y02C20/00—Capture or disposal of greenhouse gases
- Y02C20/40—Capture or disposal of greenhouse gases of CO2
-
- 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
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
Abstract
The invention belongs to boiler tail flue gas purified treatment fields, and specifically disclose a kind of biomass absorbent materials purification processing flue gas system.Including boiler smoke output module, denitrating flue gas module, flue gas desulfurization module, flue gas decarbonization module and chimney, denitrating flue gas module includes the internal denitration ontology for being hollow structure and the denitration biomass catalyzing adsorbent material in denitration ontology hollow structure, flue gas desulfurization module includes desulfurization ontology, first support and desulfurization biomass absorbent material, desulfurization biomass absorbent material is set in the desulfurization ontology, the flue gas decarbonization module includes decarburization ontology, second support and decarburization biomass absorbent material, through denitrating flue gas module, flue gas after flue gas desulfurization module and flue gas decarbonization resume module is discharged via chimney.Present system can effectively solve the problems, such as that the corresponding fume treatment auxiliary of coal-fired plant boiler is huge and somewhat expensive, have environmentally protective, and consume energy the feature low, industrial application value is high.
Description
Technical field
The invention belongs to boiler tail flue gas purified treatment fields, net more particularly, to a kind of biomass absorbent material
Change processing flue gas system.
Background technique
As domestic industry scale constantly expands, Air Pollutants Emissions are quicklyd increase, and are discharged into atmosphere
SO2、NOx, heavy metal etc. serious destruction, the CO of discharge can be all caused to natural environment and human health2It is then to cause global change
Warm, environmental degradation greenhouse gases.Therefore, to using station boiler as the tail flue gas emission of the industrial combustion of representative generation
It handles extremely urgent.China pays much attention to environmental problem caused by flue gas emission, increases to stack gas emissions always especially
The research of denitration desulfurization, but certain limitation is still remained in these fields at present.It is choosing that domestic mainstream denitration technology, which uses,
Selecting property catalytic reduction method (SCR method), mainstream commercial catalysts are still expensive V at present2O5Deng economy is not excellent enough.At present
Most common sulfur method is lime method-gypsum wet (WFGD), and the shortcoming of this method is need to use great lot of water resources, with
Water resource it is increasingly in short supply, wet desulphurization receives the limitation of various aspects.Current country CO2Emission-reduction technology have and utilize liquefied ammonia
Or alkaline solution absorption reheats separation, CO2Capture Plugging Technology Applied (CCS) etc..But the higher cost of this method, and for
For CCS technology, by CO2An even more problem is separated from solution.Domestic heavy metal removing technology is started late, tradition
Bag filter, electric precipitator have certain removal effect to heavy metal Hg, but be unable to satisfy emission request, past China processing
The method that sulphur nitre mercury generallys use graded combination removing gets up individual process combination although can also reach discharge standard
Occupied area is huge, and investment cost is high, how to realize the removing of multiple pollutant and cheap cost of investment is the following enterprise
One main trend of blowdown control.
The biomass of broad sense includes all plants, microorganism and using plant, microorganism as the animal of food and its life
The waste of production.Representational biomass such as crops and waste, timber and waste and animal wastes.Basis source
The biomass for being suitable for using energy source can be divided into forest resourceies, agricultural resource, sanitary sewage and industrial organic waste by difference
Five major class such as water, municipal solid waste and feces of livestock and poultry.Biological material have from a wealth of sources, rich reserves, it is without secondary pollution,
The advantages that energy saving.In the prior art, although proposing biological carbon material and industrial combustion after activating biomass pyrolytic
The thought that the processing of the tail flue gas emission of generation combines, but its specific system of implementing is also in debugging and test rank
Section, and it affects the use of biomass absorbent material in process complexity of reloading.
Therefore, this field urgently proposes a kind of biomass absorbent materials purification processing flue gas system, to realize biomass
Adsorbent material is combined with the processing for the tail flue gas emission that industrial combustion generates, and realizes the processing of corresponding tail gas, and system
Occupied area is small, operation and easy to use.
Summary of the invention
Aiming at the above defects or improvement requirements of the prior art, the present invention provides at a kind of biomass absorbent materials purification
Flue gas system is managed, wherein combining the feature of coal-fired plant boiler tail flue gas itself and its process characteristic of fume treatment, accordingly
Biomass absorbent material auxiliary purified treatment flue gas system is devised, and de- to its key component such as denitrating flue gas module, flue gas
The structure and its specific set-up mode of sulphur module and flue gas decarbonization module are studied and are designed, and are lived in different ways accordingly
Change modification and obtain absorption or catalytic specie of the target biology matter adsorbent material as denitration, desulfurization and decarburization, on the one hand can have
Effect solves the problems, such as that the corresponding fume treatment auxiliary of coal-fired plant boiler is huge and somewhat expensive, on the other hand compared to price height
The preparation method of high traditional pollutant removing equipment, biomass absorbent material is easy, cheap, can reduce de- to tradition
Except the corrosion contamination of equipment, extending its service life, present system is environmentally protective, and consume energy low, industrial application value with higher,
Convenient for large-scale production.
To achieve the above object, the invention proposes a kind of biomass absorbent materials purifications to handle flue gas system, including logical
Boiler smoke output module, denitrating flue gas module, flue gas desulfurization module, flue gas decarbonization module and the cigarette that piping is sequentially connected
Chimney, wherein
It is the denitration ontology of hollow structure that the denitrating flue gas module, which includes internal, and to be set to the denitration ontology hollow
Denitration biomass catalyzing adsorbent material in structure, the denitration biomass catalyzing adsorbent material is for exporting the boiler smoke
The flue gas of module output is delivered to the flue gas desulfurization module after carrying out denitration；The flue gas desulfurization module include desulfurization ontology,
First support and desulfurization biomass absorbent material, the desulfurization ontology are fixed in the first support, the desulfurization
Biomass absorbent material is set in the desulfurization ontology, for removing the SO after denitration process in flue gas2；The flue gas decarbonization mould
Block includes decarburization ontology, second support and decarburization biomass absorbent material, and the decarburization ontology is fixed at described second
On bracket, the decarburization biomass absorbent material is set in the decarburization ontology, for removing after desulfurization process in flue gas
CO2, the flue gas after denitrating flue gas module, flue gas desulfurization module and flue gas decarbonization resume module is discharged via chimney.
As it is further preferred that the desulfurization ontology include the first rotary shaft being fixedly connected with the first support,
The desulfurization rotating cylinder being set in the first rotary shaft and the desulfurization cover board set on desulfurization rotating cylinder both ends, wherein the desulfurization rotating cylinder
It is flexibly connected with first rotary shaft, and during the time it is carried out, made rotating motion centered on first rotary shaft, the desulfurization
Cover board is fixedly connected with first rotary shaft, and which is provided with the smoke ventilator of connection flue.
As it is further preferred that the desulfurization rotating cylinder includes the sub- rotating cylinder of lower desulfurization about the first axisymmetry arrangement
With the sub- rotating cylinder of upper desulfurization, the lower sub- rotating cylinder of desulfurization includes the first partition being flexibly connected with first rotary shaft and with
First rotating cylinder door of the movable connection of one partition, the first rotating cylinder door is semicircular structure, common with the first partition
Constitute first cavity structure that can accommodate the desulfurization biomass absorbent material；The sub- rotating cylinder of upper desulfurization include with it is described
The second partition that first rotary shaft is flexibly connected and the second rotating cylinder door with the movable connection of second partition, second rotating cylinder
Door is semicircular structure, and the second of the desulfurization biomass absorbent material can be accommodated by collectively forming one with the second partition
Cavity structure.
As it is further preferred that being equipped with the first diaphragm plate of multiple parallel arrangements in first cavity structure, each
It is equipped with ventilative through hole on first diaphragm plate, the second tabula of multiple parallel arrangements is equipped in second cavity structure
Plate is equipped with ventilative through hole on each second diaphragm plate.
As it is further preferred that the first rotating cylinder door is identical as the structure of the second rotating cylinder door, by two knots
The identical fanning strip composition of structure, and two fanning strips pass through lock or bolt connection.
As it is further preferred that the decarburization ontology is identical as the structure of the desulfurization ontology.
As it is further preferred that the denitration biomass catalyzing adsorbent material, desulfurization biomass absorbent material, decarburization life
Substance adsorbent material is activated by biomass pyrolytic and is obtained.
As it is further preferred that the volume of the desulfurization ontology according in the flue gas exported in boiler smoke output module
SO2Amount set, further, the volume of the desulfurization ontology is not more than 35m3。
As it is further preferred that further including flue gas ash removal module, flue gas ash removal module one end passes through pipeline and institute
Denitrating flue gas module is stated, the other end is connect by pipeline with the flue gas desulfurization module.
In general, through the invention it is contemplated above technical scheme is compared with the prior art, mainly have below
Technological merit:
1. activation modification obtains target biology matter adsorbent material as denitration, desulfurization and decarburization to the present invention in different ways
Adsorbent or catalytic specie, on the one hand can effectively solve that the corresponding fume treatment auxiliary of coal-fired plant boiler is huge and expense
With expensive problem, on the other hand compared to expensive traditional pollutant removing equipment, biological carbon material preparation method is simple
Just, cheap, the corrosion contamination to tradition removing equipment can be reduced, its service life is extended, present system is environmentally protective, consumption
Low, the industrial application value with higher of energy, is convenient for large-scale production.
2. inventive desulfurization ontology is rotatable, and then does rotation fortune centered on first rotary shaft when reloading
It is dynamic, so that the biomass absorbent agent material of lower part continues to adsorb the sulfur dioxide in flue gas, then by upper part adsorption saturation
Biomass absorbent agent material exchange for out, to fill new material, by this method, with solve traditional equipment reload it is inconvenient with
And the problem of break-off is needed when reloading.
3. multiple diaphragm plates are equipped in inventive desulfurization rotating cylinder, for cavity structure to be divided into multiple individually sub- cavitys
Structure, and ventilative through hole is equipped on diaphragm plate, facilitate reloading for biomass absorbent agent material, while increasing biomass absorbent
The contact area of material and flue gas improves the adsorption efficiency of biomass absorbent agent material.
4. denitration biomass catalyzing adsorbent material of the present invention, desulfurization biomass absorbent material, decarburization biomass absorbent
Material is activated by biomass pyrolytic and is obtained, can retentive activity carbon adsorption ability it is good, it is easy to operate, reduce investment outlay etc. it is many
While advantage, excellent carbon material carrier is obtained using cheap biomass material, there is very strong environment protection significance.
5. the volume of inventive desulfurization ontology is according to the SO in the flue gas exported in boiler smoke output module2Amount set
Fixed, further, the volume of the desulfurization ontology is not more than 35m3, can effectively solve the corresponding fume treatment of coal-fired plant boiler
The problem of equipment is huge and somewhat expensive.
Detailed description of the invention
Fig. 1 be the present embodiments relate to a kind of biomass absorbent materials purification processing flue gas system structural representation
Figure；
Fig. 2 is the structural schematic diagram of desulfurization end cap involved in flue gas desulfurization module in Fig. 1 of the present invention；
Fig. 3 is the cross-sectional structure schematic diagram of desulfurization rotating cylinder involved in flue gas desulfurization module in Fig. 1 of the present invention.
In all the appended drawings, identical appended drawing reference is used to denote the same element or structure, in which: 1- boiler body and
Flue gas output module, 2- denitrating flue gas module, 3- cleaner, 4- flue gas desulfurization module, 5- flue gas decarbonization module, 6- chimney,
The sub- rotating cylinder of desulfurization under 41-, the sub- rotating cylinder of the upper desulfurization of 42-, the first rotary shaft of 43-, 44- desulfurization cover board, 411- the first rotating cylinder door, 412-
First diaphragm plate, 421- the second rotating cylinder door, the second diaphragm plate of 422-, 441- smoke ventilator.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.As long as in addition, technical characteristic involved in the various embodiments of the present invention described below
Not constituting a conflict with each other can be combined with each other.
As shown in Figure 1, a kind of biomass absorbent materials purification processing flue gas system of the present invention includes passing through pipeline successively phase
Boiler smoke output module 1, denitrating flue gas module 2, flue gas desulfurization module 4, flue gas decarbonization module 5 and chimney 6 even,
In, the denitrating flue gas module 2 is used to after the flue gas that the boiler smoke output module 1 exports is carried out denitration process be delivered to
The flue gas desulfurization module 4；The flue gas desulfurization module 4 includes desulfurization ontology, first support and desulfurization biomass absorbent material
Material, the desulfurization ontology are fixed in the first support, and the desulfurization biomass absorbent material is set to the desulfurization sheet
In vivo, for removing the SO after denitration process in flue gas2；The flue gas decarbonization module 5 include decarburization ontology, second support and
Decarburization biomass absorbent material, the decarburization ontology are fixed in the second support, the decarburization biomass absorbent material
Material is set in the decarburization ontology, for removing the CO after desulfurization process in flue gas2, through denitrating flue gas module 2, flue gas desulfurization mould
Block 4 and flue gas decarbonization module 5 treated flue gas are discharged via chimney 6.
In the present invention, the biomass materials such as typical agricultural, sludge, house refuse are chosen in pyrolysis oven high temperature heat
Then solution uses CO according to the difference of discharge species in activation furnace2The chemical activations means such as physically activated or KOH are modified
To specific targeting biomass absorbent material, required temperature is provided by boiler smoke in pyrolysis oven and activation furnace, can be in pot
A gas bypass is arranged in furnace tail portion, draws about 600 DEG C~700 DEG C of high-temperature low-oxygen flue gas and passes sequentially through pyrolysis oven and activation
Furnace.It is pyrolyzed obtained gas and product liquid can be used as energy use.Target biology matter adsorbent material is applied to specific cigarette
Gas emission removes in process, including denitrating flue gas module 2, flue gas desulfurization module 4 and flue gas decarbonization module 5 in coal-burning power plant.
Further, denitration biomass catalyzing adsorbent material is added in coal-fired plant flue gas denitration module 2 all instead of noble metal
Catalyst.Further, in the present invention, the substance adsorbent material in flue gas desulfurization module 4 and flue gas decarbonization module 5 is being inhaled
After attached saturation, the taking-up of the substance adsorbent material of adsorption saturation can be put back to again after desorption is handled and be recycled, meanwhile,
SO after desorption2And CO2Recoverable.
As shown in Figures 2 and 3, in the present invention, the size of flue gas desulfurization module 4 and flue gas decarbonization module 5 is according to boiler smoke
The SO of flue gas in gas output module2And CO2Amount set.And flue gas desulfurization module 4 of the present invention and flue gas decarbonization module 5 are adopted
With identical structure.By taking flue gas desulfurization module 4 as an example, the desulfurization ontology includes first be fixedly connected with the first support
Rotary shaft 43, the desulfurization rotating cylinder being set in the first rotary shaft 43 and the desulfurization cover board 44 set on desulfurization rotating cylinder both ends, wherein
The desulfurization rotating cylinder is flexibly connected with first rotary shaft 43, and during the time it is carried out, is done centered on first rotary shaft 43
Rotary motion, the desulfurization cover board 44 are fixedly connected with first rotary shaft 43, and which is provided with the cigarette of connection flue
Vent hole 441.The desulfurization rotating cylinder includes the sub- rotating cylinder 41 of lower desulfurization being arranged symmetrically about the first rotary shaft 43 and upper desulfurization
Rotating cylinder 42, the lower sub- rotating cylinder 41 of desulfurization include the first partition being flexibly connected with first rotary shaft 43 and with first every
First rotating cylinder door 411 of the movable connection of plate, the first rotating cylinder door 411 is semicircular structure, total with the first partition
The first cavity structure of the desulfurization biomass absorbent material can be accommodated with composition one；The sub- rotating cylinder 42 of upper desulfurization include with
The second partition that first rotary shaft 43 is flexibly connected and the second rotating cylinder door 421 with the movable connection of second partition, institute
Stating the second rotating cylinder door 421 is semicircular structure, and the desulfurization biomass can be accommodated by collectively forming one with the second partition
Second cavity structure of adsorbent material.The first diaphragm plate 412 of multiple parallel arrangements is equipped in first cavity structure, each
Ventilative through hole is equipped on first diaphragm plate 412, second equipped with multiple parallel arrangements is horizontal in second cavity structure
Partition 422 is equipped with ventilative through hole on each second diaphragm plate 422.The first rotating cylinder door 411 and second rotating cylinder
The structure of door 422 is identical, is made of the identical fanning strip of two structures, and two fanning strips pass through lock or bolt
Connection.
The decarburization ontology of flue gas decarbonization module 5 of the present invention include the second rotary shaft being fixedly connected with the second support,
The decarburization rotating cylinder being set in the second rotary shaft and the decarburization cover board set on decarburization rotating cylinder both ends, wherein the decarburization rotating cylinder
It is flexibly connected with second rotary shaft, and during the time it is carried out, made rotating motion centered on second rotary shaft, the decarburization
Cover board is fixedly connected with second rotary shaft, and which is provided with the smoke ventilator of connection flue.The decarburization rotating cylinder packet
The sub- rotating cylinder of lower decarburization and the sub- rotating cylinder of upper decarburization about the second axisymmetry arrangement are included, the lower sub- rotating cylinder of decarburization includes and institute
It states the third partition of the second rotary shaft flexible connection and the third rotating cylinder door with the movable connection of third partition, the third turns
Tube door is semicircular structure, and the of the decarburization biomass absorbent material can be accommodated by collectively forming one with the third partition
Three cavity structures；The sub- rotating cylinder of upper decarburization include the 4th partition being flexibly connected with second rotary shaft and with the 4th every
4th rotating cylinder door of the movable connection of plate, the 4th rotating cylinder door are semicircular structure, are collectively formed with the 4th partition
One can accommodate the 4th cavity structure of the decarburization biomass absorbent material.It is equipped in the third cavity structure multiple parallel
The third diaphragm plate of arrangement is equipped with ventilative through hole on each third diaphragm plate, is equipped in the 4th cavity structure more
4th diaphragm plate of a parallel arrangement is equipped with ventilative through hole on each 4th diaphragm plate.The third rotating cylinder door and institute
The structure for stating the 4th rotating cylinder door is identical, is made of the identical fanning strip of two structures, and two fanning strips pass through lock
Or bolt connection.
Further, the volume of the desulfurization ontology is according to the SO in the flue gas exported in boiler smoke output module 12's
Amount is to set, and further, the volume of the desulfurization ontology is not more than 35m3。
As shown, this system further includes flue gas ash removal module 3, described 3 one end of flue gas ash removal module passes through pipeline and institute
Denitrating flue gas module 2 is stated, the other end is connect by pipeline with the flue gas desulfurization module 4.
Embodiment one:
When handling coal-fired plant boiler tail flue gas, the tail flue gas that station boiler generates first is passed through SCR and is taken off
Nitre device carries out denitration using the catalytic action of denitration biomass catalyzing adsorbent material；Then by flue gas be passed through dust-extraction unit into
The removing of row particulate matter；Then flue gas is introduced into SO2It removes in module, adsorbs SO using desulfurization biomass absorbent material2, then
Flue gas after desulfurization is introduced into removing CO2It removes in module, utilizes decarburization biomass absorbent material CO absorption2；In removing SO2With
CO2When, the biomass absorbent material heavy metal element such as mercury few to storage also can cooperation-removal；It finally will after treatment
Flue gas is discharged into atmosphere from chimney.
By taking 300MW coal-fired plant boiler tail flue gas processing system as an example, a 300MW coal-fired power station boiler, generation
Exhaust gas volumn is about 106m3/h。
Following biological carbon is derived from the relatively figure of merit of existing research to the adsorption capacity of each pollutant, to calculate industrial adsorption dirt
The scale of biological carbon adsorbent equipment needed for contaminating object.
For NOxRemoving, using denitration biomass catalyzing adsorbent material replace heavy metal catalyst catalysis SCR reaction,
Wherein contain about 300ppmNO in flue gasx, i.e. 0.375g/m3NOx, so NOxYield be about 3.75 × 105G/h, i.e.,
600m3/h.According to 150gh/m3It places denitration biomass catalyzing adsorbent material and (passes through unit cubic meter NO in unit hourx
The amount of denitration biomass catalyzing adsorbent material needed for amount is lower is 15g, then required denitration biomass catalyzing adsorbent material is 0.09t,
It then can reach original same effect.
For SO2Absorption, the SO of about 1000ppm is contained in flue gas2, i.e. 2800mg/m3SO2, so SO2Yield
About 2.8t/h assists removing SO with desulfurization biomass absorbent material2.Selection is to SO2Adsorption capacity is about the de- of 150mg/g
Sulphur biomass absorbent material is put into rotating cylinder, then the amount of required desulfurization biomass absorbent material is 20t/h.The desulfurization biomass absorbent
The density of material is 1.4t/m3, then about 14m is needed3Space place desulfurization biomass absorbent material.Rotating cylinder is divided into two sons up and down
Rotating cylinder, total volume 28m3；About 34m is then needed by the placement of certain 20% spatial margin3Space place this rotating cylinder, this scale is not more
In current thermal power plant WFGD unit scale, such as existing WFGD scale about 60m3, therefore there are also the potentiality of more substitution WFGD functions.
For CO2Absorption, in flue gas about containing 15% CO2, then CO2Yield is about 0.15 × 106m3/h.Selection
To CO2Adsorption capacity is the decarburization biomass absorbent material of 7mmol/g, to adsorb 20% CO2For amount, then taken off needed for single layer
The amount about 190t/h of carbon biomass absorbent material, the density of the decarburization biomass absorbent material are 1.4t/m3, then about 135m is needed3's
Decarburization biomass absorbent material is placed in space, and rotating cylinder is divided into upper layer and lower layer, total volume 270m3.By certain 20% spatial margin
Placement then needs about 324m3Space place this rotating cylinder.Other are cooperated to grind CO absorption2The achievable CO huge to quantity of technology2It is complete
The potentiality removed entirely.
Because there are the functions of synergistic sorption for above-mentioned three kinds of adsorbent materials, so can also adsorb the heavy metals such as Hg nocuousness simultaneously
Object calculates according to the adsorption capacity of 270 μ g/g, adsorbs SO2And CO2Biomass absorbent material completely have the ability absorption flue gas
In a small amount of heavy metal element.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, not to
The limitation present invention, any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should all include
Within protection scope of the present invention.
Claims (9)
1. a kind of biomass absorbent materials purification handles flue gas system, which is characterized in that including the pot being sequentially connected by pipeline
Kiln gas output module (1), denitrating flue gas module (2), flue gas desulfurization module (4), flue gas decarbonization module (5) and chimney (6),
Wherein,
The denitrating flue gas module (2) includes inside for the denitration ontology of hollow structure and is set to the hollow knot of denitration ontology
Denitration biomass catalyzing adsorbent material in structure, the denitration biomass catalyzing adsorbent material are used to the boiler smoke exporting mould
The flue gas of block (1) output is delivered to the flue gas desulfurization module (4) after carrying out denitration；The flue gas desulfurization module (4) includes de-
Sulphur ontology, first support and desulfurization biomass absorbent material, the desulfurization ontology are fixed in the first support, institute
Desulfurization biomass absorbent material is stated in the desulfurization ontology, for removing the SO after denitration process in flue gas2；The flue gas
Decarburization module (5) includes decarburization ontology, second support and decarburization biomass absorbent material, and the decarburization ontology is fixed at
In the second support, the decarburization biomass absorbent material is set in the decarburization ontology, for removing cigarette after desulfurization process
CO in gas2, through denitrating flue gas module (2), flue gas desulfurization module (4) and flue gas decarbonization module (5) treated flue gas via
Chimney (6) discharge.
2. a kind of biomass absorbent materials purification according to claim 1 handles flue gas system, which is characterized in that described de-
Sulphur ontology includes the first rotary shaft (43) being fixedly connected with the first support, the desulfurization being set on the first rotary shaft (43)
Rotating cylinder and desulfurization cover board (44) set on desulfurization rotating cylinder both ends, wherein the desulfurization rotating cylinder and first rotary shaft (43)
It is flexibly connected, and during the time it is carried out, made rotating motion centered on first rotary shaft (43), the desulfurization cover board (44) and institute
It states the first rotary shaft (43) to be fixedly connected, and which is provided with the smoke ventilator (441) of connection flue.
3. a kind of biomass absorbent materials purification according to claim 2 handles flue gas system, which is characterized in that described de-
Sulphur rotating cylinder includes the sub- rotating cylinder of lower desulfurization (41) and the sub- rotating cylinder of upper desulfurization (42) being arranged symmetrically about the first rotary shaft (43), described
The lower sub- rotating cylinder of desulfurization (41) includes the first partition being flexibly connected with first rotary shaft (43) and can live with first partition
First rotating cylinder door (411) of dynamic connection, the first rotating cylinder door (411) is semicircular structure, common with the first partition
Constitute first cavity structure that can accommodate the desulfurization biomass absorbent material；The sub- rotating cylinder of upper desulfurization (42) include with
The second partition that first rotary shaft (43) is flexibly connected and the second rotating cylinder door with the movable connection of second partition
(421), the second rotating cylinder door (421) is semicircular structure, with the second partition collectively form one can accommodate it is described
Second cavity structure of desulfurization biomass absorbent material.
4. a kind of biomass absorbent materials purification according to claim 3 handles flue gas system, which is characterized in that described the
It is equipped with the first diaphragm plate (412) of multiple parallel arrangements in one cavity structure, is equipped on each first diaphragm plate (412)
Ventilative through hole, interior the second diaphragm plate (422) for being equipped with multiple parallel arrangements of second cavity structure, each second tabula
Plate is equipped with ventilative through hole on (422).
5. a kind of biomass absorbent materials purification according to claim 3 handles flue gas system, which is characterized in that described the
One rotating cylinder door (411) is identical as the structure of the second rotating cylinder door (421), is made of the identical fanning strip of two structures, and
Two fanning strips pass through lock or bolt connection.
6. a kind of biomass absorbent materials purification according to claim 1-5 handles flue gas system, feature exists
In the decarburization ontology is identical as the structure of the desulfurization ontology.
7. a kind of biomass absorbent materials purification according to claim 1-5 handles flue gas system, feature exists
In the denitration biomass catalyzing adsorbent material, desulfurization biomass absorbent material, decarburization biomass absorbent material pass through biology
Matter pyrolysis and activation obtain.
8. a kind of biomass absorbent materials purification according to claim 1-5 handles flue gas system, feature exists
In the volume of the desulfurization ontology is according to the SO in the flue gas exported in boiler smoke output module (1)2Amount set, into
One step, the volume of the desulfurization ontology is not more than 35m3。
9. a kind of biomass absorbent materials purification according to claim 1-5 handles flue gas system, feature exists
In further including flue gas ash removal module (3), described flue gas ash removal module (3) one end passes through pipeline and the denitrating flue gas module
(2), the other end is connect by pipeline with the flue gas desulfurization module (4).
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Application publication date: 20191122 |