CN107433125A - A kind of civil cooking stove flue gas desulfurization and denitrification agent and application thereof - Google Patents
A kind of civil cooking stove flue gas desulfurization and denitrification agent and application thereof Download PDFInfo
- Publication number
- CN107433125A CN107433125A CN201710823659.0A CN201710823659A CN107433125A CN 107433125 A CN107433125 A CN 107433125A CN 201710823659 A CN201710823659 A CN 201710823659A CN 107433125 A CN107433125 A CN 107433125A
- Authority
- CN
- China
- Prior art keywords
- desulfurization
- denitrification agent
- flue gas
- desulphurization denitration
- desulfuring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- B01D53/81—Solid phase processes
- B01D53/82—Solid phase processes with stationary reactants
-
- 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
- B01D53/60—Simultaneously removing sulfur oxides and nitrogen oxides
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Abstract
The invention provides a kind of civil cooking stove flue gas desulfurization and denitrification agent and application thereof, the desulfurization denitrification agent includes following components by weight：2 parts~50 parts of 1 part~5 parts of 50 parts~90 parts of sodium agent alkali, metal and/or additive metal oxide, 0 part~10 parts of sodium sulfite and heat-storing material.Composition and consumption proportion of the invention by adjusting flue gas desulfurization and denitrification agent, obtain the flue gas desulfurization and denitrification agent can in the range of civilian flue-gas temperature with excellent desulphurization denitration performance, and specific desulfuring and denitrifying apparatus is combined, and then can effectively remove the SO in civil cooking and heating furnace in flue gas2And NOxDeng.
Description
Technical field
The invention belongs to coal-fired combustion equipment field, be related to a kind of civil cooking stove flue gas desulfurization and denitrification agent and its
Purposes.
Background technology
At present, the family of northern China certain areas, particularly small towns and country residentses, generally using native heating heating,
Due to the design of cooking stove, science, part coal are not unable to completely burned and discharged with cigarette, and utilization rate is low, not only coal consumption amount
Greatly, and serious pollution can be caused to air.Also, in real life, numerous rural subscribers are while heating, it is also desirable to
Stove can use simultaneously and cooking, such as heats up water, cooks and cooking.
At present, domestic stove mainly has two kinds of coal-fired forms on the market：
It is positive to burn stove (Fig. 1 (a))：It is i.e. traditional most simply and most common direct combustion mode, flame during solid fuel ignition
Propagated along heat smoke nature flow direction, combustion intensity is high, and firepower is prosperous, can meet user's cooking demand.The positive stove that burns is applied to nothing
The low fuel of the volatile matters such as bituminous coal.Although just burning stove with good cooking ability, using bituminous coal dispersion coal or using bituminous coal as
Made of raw material during moulded coal, heating of being heated after being added due to fire coal, Volatile, discharged immediately with flue gas, volatile matter is difficult to
After-flame, cause a large amount of black smokes (tar, CO, VOC, sulphur and nitrogen oxide etc.) and people's smell of choking to be emerged, seriously pollute environment.
Reverse burning furnace (Fig. 1 (b))：I.e. solid fuel ignition when flame backheating flue gas nature flow direction propagate burning side
Formula, there is the characteristics of delaying Volatile speed, furnace temperature is high, burning is abundant, black smoke can be substantially eliminated, suitable for bituminous coal etc.
The high fuel of volatile matter.Because counter combust more use more backhaul designs firepower is weaker, therefore its is unsuitable to improve after-flame degree
For cooking, it can only warm oneself, it is difficult to which by part, common people receive；Simultaneously because planning whole burner hearth is in oxygen-enriched high-temp combustion,
Discharged nitrous oxides concentration is higher.
However, be it is positive burn stove or reverse burning furnace, it is using the in line form of direct combustion, flue dust, SO in flue gas2And NOx
Concentration of emission is high, has a significant impact to user's living environment and air quality；Even if use low-sulfur fat coal, semi-coke and sulfur-fixing type
Coal etc., its SO2And NOxConcentration of emission is still up to hundreds of mg/Nm3, it is still very high compared to coal-fired plant boiler concentration of emission；For
The pollutant emission of Domestic coal stove is further reduced, it is necessary to a kind of inexpensive, easy-to-use flue gas purifying method.
At present, reduce and coal combustion SO is dissipated in domestic stove2The main path of discharge includes：
1. from Sources controlling, i.e., marketable coal permit standard is improved in various regions, the original sulfur content of coal is limited in 0.5%~
Less than 0.4%, using high-quality lump coal or moulded coal is made in fat coal is burnt, to suppress SO2Concentration of emission；
2. moulded coal is pressed into after scattered coal is uniformly mixed with sulfur-removing additives such as lime stones, to reduce SO2Concentration of emission.
But due to the limitation of domestic stove self-condition, can not be as Industrial Boiler, using in-furnace calcium spraying, flue gas
The desulfurization measure such as semidry method and wet method, can only utilize desulfurizing agent in stove or back-end ductwork realizes solid sulphur, currently used de-
Sulphur technique be also concentrated mainly on incorporation desulfurizing agent moulded coal aflame desulfurization in stove, but due in domestic burners ignition temperature lead to
Often more than 1000 DEG C, even as high as more than 1300 DEG C, and the optimal desulfurization " temperature window " of the desulfurizing agent such as lime stone be 850 DEG C~
900 DEG C or so, this has resulted in desulfurizing agent and has been easy to sinter, and desulfurization product is easily decomposed into SO again2And air is drained into, desulfurization effect
The problem of rate is low, and sorbent utilization is relatively low.It can be seen that mixing the moulded coal of desulfurizing agent, the potentiality of desulfurization are realized in being burnt in stove
It is limited, it can not further reduce SO2Concentration of emission.Moreover, ignition temperature in higher stove, can also cause original NOxDischarge dense
The rise of degree.
Shown by theoretical and experimental investigations no matter use which kind of above-mentioned mode to reduce SO2Concentration of emission, even original
Sulfur content be 0.4% or so coal, its SO2Concentration of emission can still reach 600mg/Nm3More than, and even in Ca/S
Desulfurizing agent is mixed in the coal of sulfur content 0.6% or so in the case of ＞ 4, its SO2Concentration of emission is also still in 200g/Nm3~
400mg/Nm3Between, desulfuration efficiency is only 60%~80%, does not reach the SO of current boiler of power plant and Industrial Boiler still2Discharge
Standard.Simultaneously as the addition of a large amount of desulfurizing agents, makes the calorific value of raw coal reduce, ature of coal is impacted.
In actual production and life, long-term exploitation and low-sulfur coal and unrealistic is utilized.On the one hand, as coal resources are opened
Dig up mine well lasting extension and exploit the increase of the time limit, gradually exploitation when arriving bottom late Carboniferous epoch coal seam, sulphur coal will be by
It is cumulative more, when upper part coal has all been adopted, then mine is possible to become that sulphur coal can only be produced；On the other hand, in China
A little areas, coal reserves characteristic is sulphur coal, if forced using low-sulfur coal, certainly will be transported at a distance from other places, so not
Only cause the waste of local resources, also result in due to transport etc. caused by energy consumption, pollution the problems such as.
Therefore, one kind how is studied on the basis of existing civil cooking stove, can effectively reduce SO in flue gas2With
NOxContent the problem of being urgent need to resolve.
The content of the invention
It is low for flue gas desulfurization and denitrification efficiency existing for existing civil cooking stove, and SO2And NOxDischarge capacity is high to ask
Topic, the invention provides a kind of civil cooking stove flue gas desulfurization and denitrification agent and application thereof.The present invention is by adjusting flue gas
The composition and consumption proportion of desulfurization denitrification agent, obtain there can be excellent desulphurization denitration performance in the range of civilian flue-gas temperature
Flue gas desulfurization and denitrification agent, and specific desulfuring and denitrifying apparatus is combined, and then can effectively remove in civil cooking and heating furnace
SO in flue gas2And NOxDeng.
To use following technical scheme up to this purpose, the present invention：
In a first aspect, the invention provides a kind of civil cooking and heating furnace flue gas desulfurization and denitrification agent, the desulfurization
Denitrfying agent includes following components by weight：
Wherein, the parts by weight of sodium agent alkali can be 50 parts, 55 parts, 60 parts, 65 parts, 70 parts, 75 parts, 80 parts, 85 parts or 90 parts
Deng it is not limited to cited numerical value, other unrequited numerical value are equally applicable in the number range；Metal and/or gold
The parts by weight for belonging to oxide addition can be 1 part, 2 parts, 3 parts, 4 parts or 5 parts etc., it is not limited to cited numerical value, should
Other unrequited numerical value are equally applicable in number range；The parts by weight of sodium sulfite are 1 part, 3 parts, 5 parts, 7 parts or 10 parts etc.,
It is not limited to cited numerical value, other interior unrequited numerical value of the number range are equally applicable；The weight of heat-storing material
Part can be 2 parts, 5 parts, 10 parts, 20 parts, 30 parts, 40 parts or 50 parts etc., it is not limited to cited numerical value, the number range
Other interior unrequited numerical value are equally applicable.
Desulfurization denitrification agent of the present invention, by adding sodium agent alkali, utilize itself and metal and/or additive metal oxide
Synergy, allow it that there is higher desulphurization denitration performance in the range of lower temperature (100 DEG C~300 DEG C).Low
Under the conditions of temperature, sodium agent alkali in the presence of metal and/or additive metal oxide with SO2React, generate Na/SOxIt is middle
Body, Na/SOxIntermediate can finally be converted into Na2SO3And Na2SO4；Meanwhile Na/SOxNO catalysis oxidations are NO by intermediate2,
The NO of generation2It can continue to react generation salt compounds with sodium agent alkali.
Wherein, on the one hand the heat-storing material is provided for sodium agent alkali and metal and/or additive metal oxide and effectively divided
Dissipate, while thermal efficiency of stoves can be regulated and controled, and then regulate and control the temperature of flue gas, flue gas is entered under optimum conditions with desulfurization denitrification agent
Row reaction.
Currently preferred technical scheme is used as below, but not as the limitation of technical scheme provided by the invention, is passed through
Following technical scheme, it can preferably reach and realize the technical purpose and beneficial effect of the present invention.
As currently preferred technical scheme, the desulfurization denitrification agent includes following components by weight：
As currently preferred technical scheme, the sodium agent alkali includes appointing in sodium acid carbonate, sodium carbonate or sodium hydroxide
Anticipate a kind of or at least two combinations, the combination typical case but non-limiting example has：The combination of sodium acid carbonate and sodium hydroxide, carbon
The combination, the combination of sodium acid carbonate, sodium carbonate and sodium hydroxide etc. of sour sodium and sodium hydroxide, preferably sodium acid carbonate and hydroxide
The combination of sodium.
In the present invention, the sodium acid carbonate generates Na in heat resolve2CO3During, it can significantly improve additive
Microcellular structure, improve its reactivity, and then improve desulfurization and denitration efficiency.
Preferably, the mass ratio of sodium acid carbonate and sodium hydroxide is (80 in the combination of the sodium acid carbonate and sodium hydroxide
~90):(20~10), such as 80:20、83:17、85:15、87:13 or 90:10 etc., it is not limited to cited numerical value,
Other unrequited numerical value are equally applicable in the number range.
Preferably, the metal in the metal and/or additive metal oxide be metallic iron, metallic copper, manganese metal or
The group of any one in metallic potassium or at least two combination, such as the combination of metallic iron and metallic copper, manganese metal and metallic potassium
Close, the combination of metallic iron, metallic copper and manganese metal, the combination etc. of metallic iron, metallic copper, manganese metal and metallic potassium, is preferably gold
Belong to iron and manganese metal.
Preferably, the metal oxide in the metal and/or additive metal oxide is oxide, the gold of metallic iron
Belong to any one in the oxide of copper, the oxide of manganese metal or the oxide of metallic potassium or at least two combination, described group
Closing typical but non-limiting material is：The combination of the oxide of metallic iron and the oxide of metallic copper, the oxide of manganese metal and
The combination of the oxide of metallic potassium, the combination of the oxide of the oxide of metallic iron, the oxide of metallic copper and manganese metal, metal
The oxidation of the oxide and manganese metal of combination of the oxide of copper, the oxide of manganese metal and metallic potassium etc., preferably metallic iron
Thing.
Preferably, the heat-storing material is the siliceous and compound of aluminium.
Preferably, the heat-storing material be clay, kaolin, bentonite, quartz or alundum (Al2O3) in any one or
At least two combination, the combination is typical but non-limiting examples have：Clay and kaolinic combination, bentonite and quartz
Combination, the combination of quartz and alundum (Al2O3), the combination of clay, kaolin, bentonite and quartz, clay, kaolin, swelling
Combination of soil, quartz and alundum (Al2O3) etc..
As currently preferred technical scheme, the particle size range of the desulfurization denitrification agent is 0 μm~15 μm, such as 1 μm,
3 μm, 5 μm, 7 μm, 10 μm, 13 μm or 15 μm etc., it is not limited to cited numerical value, other are unrequited in the number range
Numerical value it is equally applicable.
Particle size range of the invention by selecting suitable desulfurization denitrification agent, reduce size, make desulfurization and denitrification reaction process
Control of chemical reaction condition is changed into by diffusion control, increases the specific surface area of desulfurization denitrification agent in course of reaction, reduces hole
Depth, reaction activity is reduced, can then provide denitrification efficiency with the abundant haptoreaction of contaminant gases.
Preferably, the desulphurization denitration temperature window of the desulfurization denitrification agent be 100 DEG C~300 DEG C, such as 100 DEG C, 120
DEG C, 140 DEG C, 160 DEG C, 180 DEG C, 200 DEG C, 220 DEG C, 240 DEG C, 260 DEG C, 280 DEG C or 300 DEG C etc., it is not limited to listed
The numerical value of act, other interior unrequited numerical value of the number range are equally applicable, preferably 130 DEG C~300 DEG C.
The desulphurization denitration temperature window of desulfurization denitrification agent of the present invention can adapt to civil cooking and heating furnace very well
In flue-gas temperature, there is good desulfurization off sulfide effect in the range of flue-gas temperature.
Second aspect, the invention provides a kind of desulfuring and denitrifying apparatus being placed in civil cooking and heating furnace chimney,
Above-mentioned desulfurization denitrification agent built in the desulfuring and denitrifying apparatus；Wherein, the desulfuring and denitrifying apparatus includes shell and is built in outer
At least one desulphurization denitration unit composition in shell.
As currently preferred technical scheme, the desulphurization denitration unit is made up of upper spacer and lower clapboard, wherein under
Perforate in the middle part of dividing plate, the width of upper spacer are less than the width of lower clapboard, and the width of lower clapboard is identical with outer casing width, upper spacer with
Perforate filling desulfurization denitrification agent between lower clapboard around lower clapboard makes to form exhaust gases passes between upper spacer and lower clapboard, desulfurization
The overall width of denitrfying agent filling is less than or equal to the width of upper spacer, and seam is left between shell at the top of the desulphurization denitration unit
Gap；
Wherein, the overall width that the desulfurization denitrification agent loads refers to include the overall width of the exhaust gases passes wherein formed
Degree.
Preferably, the desulfuring and denitrifying apparatus includes the longitudinally disposed desulphurization denitration unit of at least three, each desulphurization denitration
Unit is arranged alternately by forward and reverse from the bottom to top.
It is positive placement to be placed in lowermost desulphurization denitration unit, oppositely positioned in desulphurization denitration unit thereon, then
Positive desulphurization denitration unit is placed thereon, but to ensure that nethermost desulphurization denitration unit is positive placement.Wherein, desulfurization takes off
Positive place of nitre unit refers to lower clapboard under, and upper spacer is upper.
In its processing procedure, flue gas takes off through the exhaust gases passes between desulphurization denitration unit upper spacer and lower clapboard into desulfurization
Nitre device, through desulfurization denitrification agent, desulphurization denitration is carried out in the presence of desulfurization denitrification agent, then again from desulfurization take off unit with it is outer
Gap between shell drains into outside into chimney.
As currently preferred technical scheme, the desulphurization denitration unit is made up of upper spacer and lower clapboard, wherein under
Open up the banding opening through dividing plate in the middle part of dividing plate, the width of upper spacer is less than the width of small baffle, upper spacer and lower clapboard it
Between prolong lower clapboard banding opening filling desulfurization denitrification agent make to form exhaust gases passes between upper spacer and lower clapboard, desulfurization denitrification agent
The overall width of filling is less than or equal to the width of upper spacer, is left at the top and bottom of the desulphurization denitration unit between shell
Gap；
Wherein, the overall width that the desulfurization denitrification agent loads refers to include the overall width of the exhaust gases passes wherein formed
Degree.
Preferably, the desulfuring and denitrifying apparatus includes the desulphurization denitration unit that at least three is laterally set, each desulphurization denitration
Unit is arranged side by side from left to right.
Wherein, positive place of desulphurization denitration unit refers to lower clapboard under, and upper spacer is upper.
The third aspect, the invention provides the processing method of above-mentioned desulfuring and denitrifying apparatus, methods described is：By desulphurization denitration
Device is placed in civil cooking and heating furnace chimney, is obstructed chimney, flue gas is then exhausted from cigarette after first passing through desulfuring and denitrifying apparatus
Chimney.
Fourth aspect, the invention provides the purposes of above-mentioned desulfuring and denitrifying apparatus, the desulfuring and denitrifying apparatus is used for civilian
Cooking heating field.
Compared with prior art, the invention has the advantages that：
The present invention combines specific desulfuring and denitrifying apparatus by adjusting the composition and consumption proportion of flue gas desulfurization and denitrification agent,
The SO in civil cooking and heating furnace in flue gas can effectively be removed2And NOxDeng making SO in the flue gas of discharge2And NOxRow
The unconventional and unrestrained minimum discharge standard to industry coal-boiler, i.e., and burning natural gas boiler identical emission level：SO2Content is less than
50mg/Nm3, NOxContent be less than 100mg/Nm3, SO2Removal efficiency up to more than 90%, NOxRemoval efficiency up to 60% with
On.
Brief description of the drawings
Fig. 1 (a) is traditional positive burning stove burning schematic diagram；
Fig. 1 (b) is traditional reverse burning furnace burning schematic diagram；
Fig. 2 is the structural representation of desulfuring and denitrifying apparatus described in the embodiment of the present invention 4；
Fig. 3 is the structural representation of desulfuring and denitrifying apparatus described in the embodiment of the present invention 5；
Fig. 4 is the structural representation of desulfuring and denitrifying apparatus described in the embodiment of the present invention 6；
Fig. 5 is the structural representation of desulfuring and denitrifying apparatus described in the embodiment of the present invention 7
Wherein, 1- chimneys, 2- desulfurization denitrification agents.
Embodiment
For the present invention is better described, technical scheme is readily appreciated, below to the present invention further specifically
It is bright.But following embodiments is only the simple example of the present invention, the scope of the present invention is not represented or limits, this
Invention protection domain is defined by claims.
Specific embodiment of the invention part provides a kind of civil cooking stove flue gas desulfurization and denitrification agent and its use
On the way, wherein the desulfurization denitrification agent includes following components by weight：
It is below present inventor typical case but non-limiting example：
Embodiment 1：
The invention provides a kind of civil cooking and heating furnace flue gas desulfurization and denitrification agent, and the desulfurization denitrification agent is by weight
Amount part meter includes following components：
Wherein, the sodium agent alkali is the matter of the combination, wherein sodium acid carbonate and sodium hydroxide of sodium acid carbonate and sodium hydroxide
Measure ratio 85:15, metallic addition is the composition of metallic iron and manganese metal, and heat-storing material is clay.
Embodiment 2：
The invention provides a kind of civil cooking and heating furnace flue gas desulfurization and denitrification agent, and the desulfurization denitrification agent is by weight
Amount part meter includes following components：
Wherein, the sodium agent alkali is the matter of the combination, wherein sodium acid carbonate and sodium hydroxide of sodium acid carbonate and sodium hydroxide
Measure ratio 80:20, metal oxide is the oxide of metallic iron and the oxide of manganese metal, and heat-storing material is kaolin.
Embodiment 3：
The invention provides a kind of civil cooking and heating furnace flue gas desulfurization and denitrification agent, and the desulfurization denitrification agent is by weight
Amount part meter includes following components：
Wherein, the sodium agent alkali is the matter of the combination, wherein sodium acid carbonate and sodium hydroxide of sodium acid carbonate and sodium hydroxide
Measure ratio 90:10, metal and additive metal oxide are the combination of metallic iron and the oxide of manganese metal, and heat-storing material is swelling
Soil.
Embodiment 4：
Present embodiments provide a kind of desulfuring and denitrifying apparatus being placed in civil cooking and heating furnace chimney and its processing
Method, the desulfuring and denitrifying apparatus are made up of shell and 1 desulphurization denitration unit, and specific structure is as shown in Fig. 2 the desulfurization
Denitration unit is made up of upper spacer and lower clapboard, wherein perforate in the middle part of lower clapboard, and the width of upper spacer is less than the width of small baffle,
The width of lower clapboard is identical with outer casing width, and institute in embodiment 1 is filled in the perforate between upper spacer and lower clapboard around lower clapboard
The desulfurization denitrification agent 2 stated makes to form exhaust gases passes between upper spacer and lower clapboard, and the overall width of desulfurization denitrification agent filling is less than
Equal to the width of last plate, and gap is left between shell at the top of desulphurization denitration unit.
The desulfuring and denitrifying apparatus is placed in the chimney 1 of civil cooking and heating furnace, civil cooking and heating furnace
Caused flue gas, which enters in desulfuring and denitrifying apparatus, carries out desulfurization and denitrification reaction, SO in the flue gas finally discharged2Content be less than
50mg/Nm3, NOxContent be less than 100mg/Nm3, SO2Removal efficiency up to more than 90%, NOxRemoval efficiency up to 60% with
On.
Embodiment 5：
Present embodiments provide a kind of desulfuring and denitrifying apparatus being placed in civil cooking and heating furnace chimney and its processing
Method, the desulfuring and denitrifying apparatus are made up of shell and 3 desulphurization denitration units, and specific structure is as shown in figure 3, the desulfurization
Denitration unit is made up of upper spacer and lower clapboard, wherein perforate in the middle part of lower clapboard, and the width of upper spacer is less than the width of small baffle,
The width of lower clapboard is identical with outer casing width, and institute in embodiment 2 is filled in the perforate between upper spacer and lower clapboard around lower clapboard
The desulfurization denitrification agent 2 stated makes to form exhaust gases passes between upper spacer and lower clapboard, and the overall width of desulfurization denitrification agent filling is less than
Equal to the width of last plate；Each desulphurization denitration unit is arranged alternately by forward and reverse from the bottom to top, wherein with desulphurization denitration list
Lower clapboard is under in member, and upper spacer is set in upper set-up mode to be positive, and at the top of the desulphurization denitration unit with shell it
Between leave gap.
The desulfuring and denitrifying apparatus is placed in the chimney 1 of civil cooking and heating furnace, civil cooking and heating furnace
Caused flue gas, which enters in desulfuring and denitrifying apparatus, carries out desulfurization and denitrification reaction, SO in the flue gas finally discharged2Content be less than
30mg/Nm3, NOxContent be less than 50mg/Nm3, SO2Removal efficiency can 90%, NOxRemoval efficiency up to 80%.
Embodiment 6：
Present embodiments provide a kind of desulfuring and denitrifying apparatus being placed in civil cooking and heating furnace chimney and its processing
Method, as shown in figure 4, the desulfuring and denitrifying apparatus is made up of shell and 3 desulphurization denitration units, the desulphurization denitration unit by
Upper spacer and lower clapboard composition, wherein open up the banding opening through dividing plate in the middle part of lower clapboard, the width of upper spacer is less than septulum
The width of plate, prolonging the desulfurization denitrification agent described in the banding opening filling embodiment 3 of lower clapboard between upper spacer and lower clapboard makes
Exhaust gases passes are formed between upper spacer and lower clapboard, the overall width of desulfurization denitrification agent filling is less than or equal to the width of last plate；
Each desulphurization denitration unit is arranged side by side by forward direction from left to right；Wherein, positive place refers to lower clapboard under, upper spacer upper,
And gap is left between shell at the top and bottom of the desulphurization denitration unit.
The desulfuring and denitrifying apparatus is placed in the chimney 1 of civil cooking and heating furnace, civil cooking and heating furnace
Caused flue gas, which enters in desulfuring and denitrifying apparatus, carries out desulfurization and denitrification reaction, SO in the flue gas finally discharged2Content be less than
50mg/Nm3, NOxContent be less than 50mg/Nm3, SO2Removal efficiency up to 80%, NOxRemoval efficiency up to 80%.
Embodiment 7：
Present embodiments provide a kind of desulfuring and denitrifying apparatus being placed in civil cooking and heating furnace chimney and its processing
Method, with reference to embodiment 6, difference is the structure of the desulfuring and denitrifying apparatus：Each desulphurization denitration unit as shown in Figure 5 by it is left extremely
It is right by being reversely arranged side by side, wherein, oppositely positioned to refer on lower clapboard, upper spacer is under.
The desulfuring and denitrifying apparatus is placed in the chimney 1 of civil cooking and heating furnace, civil cooking and heating furnace
Caused flue gas, which enters in desulfuring and denitrifying apparatus, carries out desulfurization and denitrification reaction, SO in the flue gas finally discharged2Content be less than
50mg/Nm3, NOxContent be less than 50mg/Nm3, SO2Removal efficiency up to 80%, NOxRemoval efficiency up to 80%.
Comparative example 1：
This comparative example provides a kind of civil cooking and heating furnace flue gas desulfurization and denitrification agent, the flue gas desulfurization and denitrification
In addition to not including sodium agent alkali, unclassified stores composition is in the same manner as in Example 1 for agent.
The flue gas desulfurization and denitrification agent is used for described in embodiment 4 after desulfuring and denitrifying apparatus, is placed in civil cooking
In the chimney 1 of heating stove, it is anti-that flue gas caused by civil cooking and heating furnace enters progress desulphurization denitration in desulfuring and denitrifying apparatus
Should, SO in the flue gas finally discharged2Content be higher than 500mg/Nm3, NOxContent be higher than 300mg/Nm3, SO2Removal efficiency only
For less than 60%, NOxRemoval efficiency be only less than 40%.
Comparative example 2：
This comparative example provides a kind of civil cooking and heating furnace flue gas desulfurization and denitrification agent, the flue gas desulfurization and denitrification
In addition to not including metal and/or additive metal oxide, unclassified stores composition is in the same manner as in Example 1 for agent.
The flue gas desulfurization and denitrification agent is used for described in embodiment 4 after desulfuring and denitrifying apparatus, is placed in civil cooking
In the chimney 1 of heating stove, it is anti-that flue gas caused by civil cooking and heating furnace enters progress desulphurization denitration in desulfuring and denitrifying apparatus
Should, SO in the flue gas finally discharged2Content be higher than 600mg/Nm3, NOxContent be higher than 300mg/Nm3, SO2Removal efficiency only
For less than 55%, NOxRemoval efficiency be only less than 40%.
Summary embodiment and comparative example can be seen that the composition and use of the invention by adjusting flue gas desulfurization and denitrification agent
Amount proportioning, and specific desulfuring and denitrifying apparatus is combined, it can effectively remove the SO in civil cooking and heating furnace in flue gas2And NOx
Deng making SO in the flue gas of discharge2And NOxDischarge reach the minimum discharge standard of industry coal-boiler, i.e., and the natural steam pot that burns
Stove identical emission level.SO2Content be less than 50mg/Nm3, NOxContent be less than 100mg/Nm3, SO2Removal efficiency it is reachable
80%, NOxRemoval efficiency up to 60%.
Applicant states that the present invention illustrates the detailed process equipment of the present invention and technological process by above-described embodiment,
But the invention is not limited in above-mentioned detailed process equipment and technological process, that is, it is above-mentioned detailed not mean that the present invention has to rely on
Process equipment and technological process could be implemented.Person of ordinary skill in the field it will be clearly understood that any improvement in the present invention,
The addition of equivalence replacement and auxiliary element to each raw material of product of the present invention, selection of concrete mode etc., all fall within the present invention's
Within the scope of protection domain and disclosure.
Claims (9)
1. a kind of civil cooking and heating furnace flue gas desulfurization and denitrification agent, it is characterised in that the desulfurization denitrification agent is by weight
Part meter includes following components：
2. flue gas desulfurization and denitrification agent according to claim 1, it is characterised in that the desulfurization denitrification agent wraps by weight
Include following components：
3. flue gas desulfurization and denitrification agent according to claim 1 or 2, it is characterised in that the sodium agent alkali include sodium acid carbonate,
Any one in sodium carbonate or sodium hydroxide or the combination of at least two combination, preferably sodium acid carbonate and sodium hydroxide；
Preferably, in the combination of the sodium acid carbonate and sodium hydroxide the mass ratio of sodium acid carbonate and sodium hydroxide for (80~
90):(20~10).
Preferably, the metal in the metal and/or additive metal oxide is metallic iron, metallic copper, manganese metal or metal
Any one in potassium or at least two combination, preferably metallic iron and manganese metal；
Preferably, the metal oxide in the metal and/or additive metal oxide is oxide, the metallic copper of metallic iron
Oxide, any one in the oxide of manganese metal or the oxide of metallic potassium or at least two combination, preferably metal
The oxide of iron and the oxide of manganese metal；
Preferably, the heat-storing material is the siliceous and compound of aluminium；
Preferably, the heat-storing material be clay, kaolin, bentonite, quartz or alundum (Al2O3) in any one or at least
Two kinds of combination.
4. according to the flue gas desulfurization and denitrification agent described in claim any one of 1-3, it is characterised in that the grain of the desulfurization denitrification agent
It is 0 μm~15 μm to spend scope；
Preferably, the desulphurization denitration temperature window of the desulfurization denitrification agent is 100 DEG C~300 DEG C, preferably 130 DEG C~300 DEG C.
A kind of 5. desulfuring and denitrifying apparatus being placed in civil cooking and heating furnace chimney, it is characterised in that the desulphurization denitration
The built-in desulfurization denitrification agent as described in claim any one of 1-4 of device；Wherein, the desulfuring and denitrifying apparatus includes shell and interior
At least one desulphurization denitration unit composition being placed in shell.
6. desulfuring and denitrifying apparatus according to claim 5, it is characterised in that the desulphurization denitration unit is by upper spacer with
Dividing plate forms, wherein perforate in the middle part of lower clapboard, and the width of upper spacer is less than the width of lower clapboard, and the width and shell of lower clapboard are wide
Spend it is identical, between upper spacer and lower clapboard around lower clapboard perforate filling desulfurization denitrification agent make shape between upper spacer and lower clapboard
Into exhaust gases passes, the overall width of desulfurization denitrification agent filling is less than or equal to the width of upper spacer, the desulphurization denitration unit top
Gap is left between shell；
Preferably, the desulfuring and denitrifying apparatus includes the longitudinally disposed desulphurization denitration unit of at least three, each desulphurization denitration unit
It is arranged alternately from the bottom to top by forward and reverse.
7. desulfuring and denitrifying apparatus according to claim 5, it is characterised in that the desulphurization denitration unit is by upper spacer with
Dividing plate is formed, and the banding opening through dividing plate is wherein opened up in the middle part of lower clapboard, and the width of upper spacer is less than the width of small baffle, on
Prolonging the banding opening filling desulfurization denitrification agent of lower clapboard between dividing plate and lower clapboard makes to form flue gas between upper spacer and lower clapboard
Passage, the overall width of desulfurization denitrification agent filling are less than or equal to the width of upper spacer, the desulphurization denitration unit top and bottom
Gap is left between shell；
Preferably, the desulfuring and denitrifying apparatus includes the desulphurization denitration unit that at least three is laterally set, each desulphurization denitration unit
It is arranged side by side from left to right.
A kind of 8. processing method of desulfuring and denitrifying apparatus as described in claim any one of 5-7, it is characterised in that methods described
For：Desulfuring and denitrifying apparatus is placed in civil cooking and heating furnace chimney, obstructs chimney, flue gas is first passed through desulphurization denitration dress
Postpone and be then exhausted from chimney.
A kind of 9. purposes of desulfuring and denitrifying apparatus as described in claim any one of 5-7, it is characterised in that the desulphurization denitration
Device is used for domestic cooking field of heating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710823659.0A CN107433125A (en) | 2017-09-13 | 2017-09-13 | A kind of civil cooking stove flue gas desulfurization and denitrification agent and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710823659.0A CN107433125A (en) | 2017-09-13 | 2017-09-13 | A kind of civil cooking stove flue gas desulfurization and denitrification agent and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107433125A true CN107433125A (en) | 2017-12-05 |
Family
ID=60462066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710823659.0A Pending CN107433125A (en) | 2017-09-13 | 2017-09-13 | A kind of civil cooking stove flue gas desulfurization and denitrification agent and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107433125A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108176202A (en) * | 2017-12-26 | 2018-06-19 | 北京亘源环保有限公司 | A kind of preparation method and application of desulfuration adsorbent |
| CN110180376A (en) * | 2019-06-17 | 2019-08-30 | 山东山大华特环保工程有限公司 | Annular bin dry type fixed bed desulfuring and denitrifying apparatus and flue gas desulfurization and denitration method |
| CN113713583A (en) * | 2021-08-31 | 2021-11-30 | 中冶赛迪技术研究中心有限公司 | Blast furnace gas desulfurizing tower and sealing device thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2265850Y (en) * | 1996-05-21 | 1997-10-29 | 成晓迪 | High wind rate waste gas handling adsorption tower |
| CN102824844A (en) * | 2012-09-11 | 2012-12-19 | 北京世能中晶能源科技有限公司 | Desulfurization and denitrification agent, preparation method and application thereof |
| CN104275150A (en) * | 2014-10-16 | 2015-01-14 | 广州博能能源科技有限公司 | Deep smoke purifying material, and preparation method and use method thereof |
| CN204891537U (en) * | 2015-08-15 | 2015-12-23 | 周新洁 | Baffle reposition of redundant personnel laminar waste gas adsorption equipment |
| CN105771617A (en) * | 2016-03-22 | 2016-07-20 | 天津滨环化学工程技术研究院有限公司 | Flue gas desulfurization and denitrification method |
| CN106031861A (en) * | 2015-03-19 | 2016-10-19 | 上海融熠投资管理有限公司 | Composite adsorbent |
| CN106731783A (en) * | 2015-11-23 | 2017-05-31 | 中国铝业股份有限公司 | Integrated fume desulfurization denitrification agent and its application method |
-
2017
- 2017-09-13 CN CN201710823659.0A patent/CN107433125A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2265850Y (en) * | 1996-05-21 | 1997-10-29 | 成晓迪 | High wind rate waste gas handling adsorption tower |
| CN102824844A (en) * | 2012-09-11 | 2012-12-19 | 北京世能中晶能源科技有限公司 | Desulfurization and denitrification agent, preparation method and application thereof |
| CN104275150A (en) * | 2014-10-16 | 2015-01-14 | 广州博能能源科技有限公司 | Deep smoke purifying material, and preparation method and use method thereof |
| CN106031861A (en) * | 2015-03-19 | 2016-10-19 | 上海融熠投资管理有限公司 | Composite adsorbent |
| CN204891537U (en) * | 2015-08-15 | 2015-12-23 | 周新洁 | Baffle reposition of redundant personnel laminar waste gas adsorption equipment |
| CN106731783A (en) * | 2015-11-23 | 2017-05-31 | 中国铝业股份有限公司 | Integrated fume desulfurization denitrification agent and its application method |
| CN105771617A (en) * | 2016-03-22 | 2016-07-20 | 天津滨环化学工程技术研究院有限公司 | Flue gas desulfurization and denitrification method |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108176202A (en) * | 2017-12-26 | 2018-06-19 | 北京亘源环保有限公司 | A kind of preparation method and application of desulfuration adsorbent |
| CN110180376A (en) * | 2019-06-17 | 2019-08-30 | 山东山大华特环保工程有限公司 | Annular bin dry type fixed bed desulfuring and denitrifying apparatus and flue gas desulfurization and denitration method |
| CN110180376B (en) * | 2019-06-17 | 2022-02-01 | 山东山大华特环保工程有限公司 | Dry type fixed bed desulfurization and denitrification device with annular bin |
| CN113713583A (en) * | 2021-08-31 | 2021-11-30 | 中冶赛迪技术研究中心有限公司 | Blast furnace gas desulfurizing tower and sealing device thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102311835B (en) | Fire coal synergist | |
| CN107433125A (en) | A kind of civil cooking stove flue gas desulfurization and denitrification agent and application thereof | |
| CN1945116B (en) | Circulation fixing bed split phase combustion technology | |
| KR101313527B1 (en) | Fuel Additives For Prevention And Removal of Clinker And Reducing Harmful Gas | |
| CN206310480U (en) | A kind of burner hearth for realizing NOx reduction reactions | |
| CN103725347A (en) | Desulfurizing, denitrifying and decoking synergic additive for fire coal and preparation method of additive | |
| CN100393856C (en) | Green energy-saving coal combustion promoter | |
| CN107435952A (en) | A kind of energy-saving environment protection fire coal cooking and heating furnace and cooking heating method and purposes | |
| CN105670716A (en) | Oxygenation decoking agent | |
| CN204629456U (en) | A kind of traveling-grate stoker realizing the burning of coal partial gasification | |
| CN109439380A (en) | Improve the high heating value additive and preparation method thereof of coal combustion efficiency | |
| CN104877730A (en) | Environment-friendly coal-saving agent | |
| CN101323807A (en) | Fire coal energy-saving emission-reducing synergistic agent | |
| CN205279074U (en) | Low nitrogen powder combustor of slag -tap formula | |
| CN205119029U (en) | Coal fired boiler changes device that burns living beings pellet fuel | |
| CN101434885A (en) | Multiple-effect coal fines additive and efficient clean fire coal powder prepared thereby | |
| CN104152181A (en) | Carbon-molecule gasification combustion boiler (kiln) method | |
| CN104910995B (en) | Boiler chromium-base slag-removing coal-saving agent composition and preparation method thereof | |
| CN203687015U (en) | Spiral-flow type self-contained boiler burning biomass particles in membrane-type wall structure | |
| CN202158559U (en) | Energy-saving emission-reducing water pipe fire grate horizontal boiler | |
| CN206831568U (en) | A kind of energy-saving environment protection fire coal cooking and heating furnace | |
| CN104910996B (en) | Boiler chromium-base slag-removing ash-cleaning coal-saving agent composition and preparation method thereof | |
| CN203771460U (en) | Coal-fired boiler magnetization clean combustion environment friendly device | |
| CN102901087A (en) | Energy-saving emission-reducing horizontal boiler with water pipe grate | |
| CN210291962U (en) | Heating cooking clean stove with soft coal burning without black smoke |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171205 |