CN106435077A - Blast-furnace gas dry purification method and system - Google Patents
Blast-furnace gas dry purification method and system Download PDFInfo
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- CN106435077A CN106435077A CN201611154112.8A CN201611154112A CN106435077A CN 106435077 A CN106435077 A CN 106435077A CN 201611154112 A CN201611154112 A CN 201611154112A CN 106435077 A CN106435077 A CN 106435077A
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/22—Dust arresters
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B5/00—Making pig-iron in the blast furnace
- C21B5/06—Making pig-iron in the blast furnace using top gas in the blast furnace process
Abstract
The invention provides a blast-furnace gas dry purification method and system. According to the method, a chemical chain combustion reactor and two adsorption towers are adopted, released heat obtained through chemical chain combustion reaction heats carrier gas, high-temperature carrier gas is further used for carrying out desorption on a regeneration adsorbent, NH3 obtained after desorption is led into the chemical chain combustion reactor to make a reduction reaction with oxidation state-loaded oxysome, after the adsorbent in the adsorption towers completes desorption, air is led into the chemical chain combustion reactor to carry out oxidization regeneration process of the reduction state-loaded oxysome, the two parallel adsorption towers carry out absorption and regeneration alternatively, and blast-furnace gas efficient dry purification is achieved. The adsorption towers are filled with alkaline mode oxides to serve as the adsorbent, harmful impurities of ammonia, chlorine, sulfur and the like in blast-furnace gas can be thoroughly removed, the chemical chain combustion reactor is additionally arranged, the desorption NH3 can be subject to deep processing, and reaction heat released out of the reaction in the chemical chain combustion reactor can provide heat for desorption regeneration of the adsorbent.
Description
Technical field
The present invention relates to a kind of blast furnace gas dry purification method and system, belong to smelting iron and steel and lead with environmental protection technology
Domain.
Background technology
In recent years, the commonly used dry type dust settling pocket technique of the blast furnace gas of domestic iron and steel enterprises, brings greatly
Economic benefit and social benefit.But the continuous accumulation with knowhow, finds to adopt dry type cloth when blast furnace gas successively
After bag dedusting, because of the impurity containing ammonia, chlorine, sulfur etc. in coal gas, exist substantial amounts of long-pending in TRT system, tubing and auxiliary device
Salt and etching problem, bring huge economic loss to enterprise, also significantly increase the work of production maintenance personnel simultaneously
Amount.Therefore, how efficiently to remove the impurity such as ammonia in blast furnace gas, chlorine, sulfur, and then slow down or solve salification and etching problem one-tenth
Problem for iron and steel enterprise's urgent need to resolve.
At present, industry mainly has wet scrubbing and dry adsorption agent using the scheme of the media such as more removing ammonia, chlorine, sulfur
Absorption.Wet scrubbing can only process the gas after TRT, leads to the salification problem of TRT serious, simultaneously as a lot of iron and steel enterprise
Industry send the impurity such as ammonia, chlorine, sulfur contained by blast furnace gas of air stove unprocessed, leads to send the blast furnace gas pipeline of air stove and sets
Have salification and corrosion phenomenon.Compared with wet scrubbing, dry adsorption agent adsorption and purification technology has does not spray water, does not lower the temperature, no
Produce the advantage of the environmental protection and energy saving aspects such as new polluter.However, current dry adsorption agent is how based on basic oxide, absorption
Finite capacity, runs and can lose efficacy for a period of time it is impossible to need outside offer big energy when regenerating or regenerating.
Existing blast furnace gas dry dusting technological process is as shown in figure 1, blast furnace 1 stock gas is thick through pipeline entrance dry method
Dust arrester 2 and dry method essence dust arrester 3, the blast furnace gas after dry method dust is incorporated to purified gas after TRT 7 generating
Pipe network, such as TRT (TRT) 7 does not run, then be incorporated to clean coal gas pipe network after passing through pressure regulation valve group 6.This existing blast furnace gas
Dry dedusting technology is primarily present following shortcoming：(1) because of the impurity containing ammonia, chlorine, sulfur etc. in coal gas, the thick dedusting of dry method and smart dedusting fill
Put and can not remove above impurity component, there is substantial amounts of salification in TRT system, tubing and auxiliary device and corrosion is asked
Topic；(2) salification problem is due to NH3Combine with HCl and generate NH4Cl, when temperature is reduced to 80 DEG C about, ammonia salt separates out.
Existing blast furnace gas dry dusting wet method dechlorination technological process is as shown in Fig. 2 blast furnace 1 stock gas enters through pipeline
Enter the thick dust arrester of dry method 2 and dry method essence dust arrester 3, the blast furnace gas after dry method dust is after TRT 7 generating
Enter spray washing tower (for removing CO2) 5, in spray washing tower (for removing CO2) 5, acid impurities are carried out with spray removing, is incorporated to clean coal by spraying the clear height producer gas of washing tower (for removing CO2) 5
Gas pipe network, such as TRT (TRT) 7 does not run, then enter spray washing tower (for removing CO2) 5 after passing through pressure regulation valve group 6, then be incorporated to clean coal gas pipe network.
This existing blast furnace gas dry dusting wet method dechlorination technique is primarily present following shortcoming：(1) spray washing tower (for removing CO2) need to consume substantial amounts of
Water and alkali liquor；(2) substantial amounts of brine waste can be produced, produce new polluter；(3) because spray can reduce gas temperature, therefore
Spray washing tower (for removing CO2) purifies to coal gas after can be only placed at TRT, leads to TRT because not to NH3, chlorine is processed and salification problem is tight
Weight；In a lot of enterprises, the impurity such as ammonia, chlorine, sulfur contained by blast furnace gas due to sending air stove is unprocessed, leads to send air stove
Blast furnace gas pipeline and equipment have salification and corrosion phenomenon.
Existing blast furnace gas dry dusting dry method dechlorination technological process is as shown in figure 3, blast furnace 1 stock gas enters through pipeline
Enter the thick dust arrester of dry method 2 and dry method essence dust arrester 3, the blast furnace gas after dry method dust is passed through adsorption tower 4, in adsorption tower
Filling adsorbent, adsorbent is grouped into by basic activated group of less than 20%, and the purified gas after being adsorbed by adsorbent passes through to send out
Electric installation 7 enters purified gas pipe network after generating electricity, such as TRT (TRT) 7 does not run, then be incorporated to clean coal after passing through pressure regulation valve group 6
Gas pipe network.This existing blast furnace gas dry dusting dry method dechlorination technique is primarily present following shortcoming：The dry adsorption agent of filling
Adsorption capacity is limited, can lose efficacy after running a period of time, such as abandons or fills spent sorbent, changes novel sorbents, can cause
The secondary pollution of environment, and purifier operation expense can be greatly improved.
Existing blast furnace gas dry dusting dry method dechlorination technique-reproducible technological process of adsorbent is as shown in figure 4, height
Stove 1 stock gas enters the thick dust arrester of dry method 2 and dry method essence dust arrester 3, the blast furnace gas after dry method dust through pipeline
It is passed through adsorption tower 4, filling adsorbent in adsorption tower, adsorbent is grouped into by basic activated group of less than 20%, by adsorbent
Purified gas after absorption enters purified gas pipe network after TRT 7 generating, and such as TRT (TRT) 7 does not run, then pass through
It is incorporated to clean coal gas pipe network after pressure regulation valve group 6.After adsorbent adsorption saturation, by what regeneration carrier gas heater 8 was produced
100～500 DEG C of superheated steams or 300～700 DEG C of high-temperature flue gas/coal gas are passed through in adsorption tower 4 as high temperature carrier gas, high temperature carrier gas
Acidic materials in dry adsorption agent and dust etc. can be separated, so that dry adsorption agent is regenerated and reuse.This is existing
Blast furnace gas dry dusting dry method dechlorination technique-reproducible technique of adsorbent be primarily present following shortcoming：From alkali formula oxygen
Compound, as adsorbent, after adsorbent adsorption saturation, need to produce 100～500 DEG C of superheated steams or 300 with carrier gas heater
～700 DEG C of high-temperature flue gas/coal gas is passed through in adsorption tower as high temperature carrier gas, by the foreign gas in dry adsorption agent and dust
Etc. separating, make adsorbent reactivation and reuse.Therefore, need larger energy during the adsorbent reactivation in this technology
Consumption.
There is above-mentioned various defect because current blast furnace gas dry purifies technique, therefore this area is badly in need of grinding
Send a kind of new blast furnace gas dry purification method and system.
Content of the invention
For solving the problems, such as above-mentioned prior art, it is an object of the invention to provide a kind of blast furnace gas dry purifies
Method and system.
For reaching above-mentioned purpose, present invention firstly provides a kind of blast furnace gas dry purification method, it includes following step
Suddenly：
(1) make from blast furnace roof discharge blast furnace gas sequentially enter the thick dust arrester of dry method and dry method essence dust arrester enter
After row dust removal process；The foreign gas entering in the coal gas after the first adsorption tower makes dedusting (mainly includes NH3, HCl etc.) by
Adsorbent absorption in one adsorption tower；Then enter gas pipe by TRT after so that the gas after adsorption-edulcoration is generated electricity
Net, if TRT does not run, enters gaspipe network after pressure regulation valve group；
(2) when the adsorbent adsorption saturation in the first adsorption tower, the blast furnace gas discharged from blast furnace roof is made to enter successively
Enter the thick dust arrester of dry method and dry method essence dust arrester carry out dust removal process after；Enter second absorption in parallel with the first adsorption tower
Tower makes the foreign gas in the coal gas after dedusting (mainly include NH3, HCl etc.) adsorbed by the adsorbent in the second adsorption tower；So
Enter gaspipe network after so that the gas after adsorption-edulcoration is generated electricity by TRT afterwards, if TRT does not run, pass through
Gaspipe network is entered after pressure regulation valve group；
Make high temperature carrier gas enter the first adsorption tower of adsorption saturation by adsorbent NH simultaneously3Desorption out, makes to take off
Attached NH out3Enter and in burning chemistry chains reactor, carry out reduction reaction generation reduzate with oxidation state oxygen carrier therein
Gas (mainly including nitrogen, vapor and carbon dioxide) simultaneously releases heat；
(3) after adsorbent wholly or largely desorption and regeneration in the first adsorption tower, stop being passed through high temperature thereto carrying
Gas, the first adsorption tower natural cooling cooling；Make air or oxygen-enriched air enter in burning chemistry chains reactor with reduction therein
State oxygen carrier carries out oxidation regeneration reaction and generates oxidation product gas and release heat；
When the reduction-state oxygen carrier wholly or largely oxidized regeneration in burning chemistry chains reactor, stop thereto
It is passed through air or oxygen-enriched air；
(4) when the adsorbent adsorption saturation in the second adsorption tower, the blast furnace gas discharged from blast furnace roof is made to enter successively
Enter the thick dust arrester of dry method and dry method essence dust arrester carry out dust removal process after；It is again introduced into the first adsorption tower to be adsorbed, make
Enter gaspipe network by TRT after gas after adsorption-edulcoration is generated electricity or after pressure regulation valve group；
Adsorbent in second adsorption tower is carried out with desorption and regeneration simultaneously, the step of this desorption and regeneration and this step are related to
Reduction reaction process in burning chemistry chains reactor and oxidation regeneration course of reaction all with to the adsorbent in the first adsorption tower
The step carrying out desorption and regeneration is identical；
Make the first adsorption tower and the second adsorption tower alternating sorbent and regeneration, realize the dry cleaning of blast furnace gas.
It is preferable that described high temperature carrier gas is so that carrier gas is entered by thermophore in above-mentioned blast furnace gas dry purification method
Obtained from row heating, the temperature of described high temperature carrier gas is 350～450 DEG C；And the reduction of described burning chemistry chains reactor
Product gas and oxidation product gas are emptied all after described thermophore accumulation of heat, and described burning chemistry chains reactor is at the 1st time
It is made to be heated to 300～450 DEG C (first using noble gases (such as nitrogen) as heat transfer medium and by heater during operation
During secondary operation, heating-up temperature can be low, has exothermic heat of reaction and elevate the temperature during subsequent reactions), the indifferent gas after heating
Body is emptied after described thermophore accumulation of heat.The present invention need not arrange carrier gas heater, but using burning chemistry chains reaction
The reaction heat that combustion reaction in device discharges comes for thermophore accumulation of heat, and then heats carrier gas；In burning chemistry chains reactor the 1st
During secondary operation, first it is passed through noble gases thereto and by heater, it is heated simultaneously, and then make the noble gases after heating
By thermophore accumulation of heat；High temperature carrier gas after being heated by thermophore is carried out desorption to adsorbent and obtains NH3, this NH3Entering into
Learn in chain combustion reactor, now burning chemistry chains reactor need not be heated, this NH3Carry temperature and oxidation therein
State oxygen carrier carries out reduction reaction and generates reduzate gas and release heat；In the burning chemistry chains reactor carrying out afterwards
In oxidation regeneration course of reaction and two adsorption towers, the desorption and regeneration process of adsorbent all need not additionally heat again.
It is preferable that entering the dedusting of the first adsorption tower or the second adsorption tower in above-mentioned blast furnace gas dry purification method
The temperature of coal gas afterwards is 90～200 DEG C；It is highly preferred that entering the coal gas after the first adsorption tower or the dedusting of the second adsorption tower
Temperature is 90～120 DEG C.That is, the temperature adsorbed in adsorption tower is 90～200 DEG C, preferably 90～120 DEG C.
In above-mentioned blast furnace gas dry purification method it is preferable that in described first adsorption tower and described second adsorption tower
Adsorbent include respectively in basic oxide or basic oxide and activated carbon, silica gel, activated alumina and molecular sieve etc.
The mixture of one or more.First adsorption tower and the adsorbent in the second adsorption tower can identical it is also possible to slightly not
With as long as all containing basic oxide.
In above-mentioned blast furnace gas dry purification method it is preferable that in described first adsorption tower and described second adsorption tower
Adsorbent desorption and regeneration carry out at 300～400 DEG C.
Oxygen carrier bag in above-mentioned blast furnace gas dry purification method it is preferable that in described burning chemistry chains reactor
Include the combination of one or more of Cu base load oxysome, Fe base load oxysome and Ni base load oxysome etc..The definition of oxygen carrier is：Changing
Learn in chain combustion reaction, the soild oxide for transmitting oxygen is referred to as oxygen carrier；Cu base, Ni base, Fe base, Ca base etc. is mainly had to carry
Oxysome., generally CuO is active component, with Al taking Cu base load oxysome as a example2O3、SiO2It is prepared Deng for inert carrier.More
Preferably, the oxygen carrier in described burning chemistry chains reactor is Cu base load oxysome, the oxidation state oxygen carrier of Cu base load oxysome
The oxidation regeneration reaction of reduction reaction and reduction-state oxygen carrier is exothermic reaction, and this is advantageous to come with the reaction heat of itself
Maintain the reaction temperature needed for reduction process and oxidative regeneration process, and for providing continuously heat during adsorbent desorption and regeneration
Amount.Processing NH3Reaction in, the oxidation state of Cu base load oxysome and NH3Reduction reaction and reduction-state and O2Oxidation again
The reaction equation of raw reaction and reaction heat are as follows：
3CuO+2NH3(g)=3Cu+N2(g)+3H2O (g) △ H=-40.81kcal/mol；
2Cu+O2(g)=2CuO △ H=-73.41kcal/mol.
Oxidation state in above-mentioned blast furnace gas dry purification method it is preferable that in described burning chemistry chains reactor carries
The reduction reaction of oxysome is carried out at 400～500 DEG C, and the oxidation regeneration reaction of reduction-state oxygen carrier is to enter at 450～500 DEG C
Row.
Reduction-state oxygen carrier in above-mentioned blast furnace gas dry purification method it is preferable that in burning chemistry chains reactor
When wholly or largely the criterion of oxidized regeneration can reach 2% for the oxygen volumetric concentration in oxidation product gas.
It is preferable that the thick dust arrester of described dry method and described dry method essence are removed in above-mentioned blast furnace gas dry purification method
Dirt device is respectively sack cleaner, electric cleaner, metal dusting device or sinter-plate precipitator.
The invention provides a kind of new blast furnace gas dry purification method.The method will contain the impurity such as ammonia, chlorine first
Dedusting after blast furnace gas be passed through in adsorption tower, make adsorbent adsorb NH therein3With the impurity such as HCl, thus realizing blast furnace coal
The purification of gas；Then in being reacted by burning chemistry chains, the heat release of combustion process is heated to carrier gas, and then is carried using high temperature
The attached reproducing adsorbent of QI prostration；NH after desorption3It is passed in burning chemistry chains reactor and reduced with oxidation state oxygen carrier
Reaction, generates N2、H2O and CO2, the oxidability because of oxidation state oxygen carrier is markedly less than O2, and reduction reaction temperature controls
400～500 DEG C, thus without there being NO or NO2Reaction；Complete it when the adsorbent in adsorption tower is wholly or largely desorbed
Afterwards, air or oxygen-enriched air are passed through by the oxygen carrying out reduction-state oxygen carrier in burning chemistry chains reactor by the switching of valve group
Change regenerative process；And adopt two adsorption tower alternating sorbent in parallel and regeneration, realize the efficient dry cleaning of blast furnace gas.
Present invention also offers a kind of blast furnace gas dry cleaning system, this system at least includes：The thick dust arrester of dry method,
Dry method essence dust arrester, the first adsorption tower, the second adsorption tower and burning chemistry chains reactor；
The blast furnace gas outlet of blast furnace roof is sequentially connected to the thick dust arrester of dry method and dry method essence dedusting dress by pipeline
Put, the gas exit after the dedusting of dry method essence dust arrester is connected to the first adsorption tower and the second adsorption tower tower by pipeline respectively
The gas entry at bottom；The tower top of the first adsorption tower and the second adsorption tower is connected to TRT and the tune of parallel connection respectively by pipeline
Pressure valve group and then connection gaspipe network；
The tower top of the first adsorption tower and the second adsorption tower be also respectively provided with high temperature carrier gas enter pipeline, the first adsorption tower and
The bottom of towe of the second adsorption tower is also respectively provided with desorption NH3Outlet conduit；Article two, it is desorbed NH3Outlet conduit is all connected to chemical chain
The reduction reaction gas access of combustion reactor, burning chemistry chains reactor is additionally provided with reduzate gas outlet, should be also
Air is connected with the pipeline of former product gas outlet or oxygen-enriched air enters pipeline, that is, burning chemistry chains reactor is also original
Thing gas outlet is also oxidation regeneration reaction gas inlet, and the reduction reaction gas access of burning chemistry chains reactor is also
Oxidation product gas export；And it is provided with heater on burning chemistry chains reactor；
All it is filled with adsorbent in first adsorption tower and the second adsorption tower；It is filled with oxygen carrier in burning chemistry chains reactor
Body.
The blast furnace gas dry cleaning system of the present invention is the system that above-mentioned blast furnace gas dry purification method adopts.
Specific embodiment according to the present invention it is preferable that above-mentioned blast furnace gas dry cleaning system also includes thermophore,
Carrier gas is provided with described thermophore and enters pipeline, and the oxidation product gas of described burning chemistry chains reactor export and go back
Former product gas outlet is all connected to described thermophore come for its accumulation of heat, the high temperature after described thermophore heating carries by pipeline
Gas passes through the high temperature carrier gas entrance pipeline that high temperature carrier gas outlet is connected to the first adsorption tower and the second absorption column overhead, and
Product gas outlet pipeline is additionally provided with described thermophore for emptying as oxidation product gas after its accumulation of heat and also original
Thing gas.
In the specific embodiment of the present invention, above-mentioned blast furnace gas dry cleaning system can also include electrodynamic valve and/
Or electronic valve group, these electrodynamic valves and/or electronic valve group can be separately positioned on the first adsorption tower, the second adsorption tower, chemical chain
On the entrance of one of combustion reactor and thermophore etc. or several device and/or outlet conduit, in order to switch adsorption tower
In adsorption process and desorption and regeneration process, burning chemistry chains reactor in reduction reaction process and oxidation regeneration course of reaction
Deng.
In above-mentioned blast furnace gas dry cleaning system it is preferable that in described first adsorption tower and described second adsorption tower
Adsorbent include respectively in basic oxide or basic oxide and activated carbon, silica gel, activated alumina and molecular sieve etc.
The mixture of one or more.First adsorption tower and the adsorbent in the second adsorption tower can identical it is also possible to slightly not
With as long as all containing basic oxide.
Oxygen carrier bag in above-mentioned blast furnace gas dry cleaning system it is preferable that in described burning chemistry chains reactor
Include the combination of one or more of Cu base load oxysome, Fe base load oxysome and Ni base load oxysome etc.；It is highly preferred that described chemical chain
Oxygen carrier in combustion reactor is Cu base load oxysome.
It is preferable that the thick dust arrester of described dry method and described dry method essence are removed in above-mentioned blast furnace gas dry cleaning system
Dirt device is respectively sack cleaner, electric cleaner, metal dusting device or sinter-plate precipitator.
The blast furnace gas dry purification method that the present invention provides and system mainly can bring following beneficial effect：(1) originally
Invent the meetings such as the ammonia that can thoroughly remove in blast furnace gas by filling basic oxide in adsorption tower as adsorbent, chlorine, sulfur
To the objectionable impurities causing equipment salification and etching problem, and the specific embodiment according to the present invention, purified by test
The pH value of blast furnace gas condensate water afterwards, find its pH value be 6～8 it was demonstrated that purify after blast furnace gas in chlorinity<5mg/Nm3,
Fundamentally solve salification and the etching problem of TRT device, tubing and equipment etc.；(2) present invention has installed chemical chain additional
Combustion reactor, can be by the NH of desorption3Carry out advanced treating, and carrier gas heater need not be set, anti-in burning chemistry chains
Answer the oxygen carrier in device and NH3Reduction reaction process and the oxidation regeneration course of reaction of oxygen carrier be exothermal reaction process,
The reaction heat discharging can provide heat for the desorption and regeneration of adsorbent, significantly reduces the energy of adsorbent reactivation process
Consume；(3) present invention adopts two adsorption tower alternating sorbent and regeneration it is achieved that the efficient dry cleaning of blast furnace gas.
Brief description
Fig. 1 is existing blast furnace gas dry dusting process chart；
Fig. 2 is existing blast furnace gas dry dusting wet method dechlorination process chart；
Fig. 3 is existing blast furnace gas dry dusting dry method dechlorination process chart；
Fig. 4 is existing blast furnace gas dry dusting dry method dechlorination technique-reproducible process chart of adsorbent；
Blast furnace gas dry purification method and the technological process of system that Fig. 5 provides for the embodiment of the invention
Figure；
Primary clustering symbol description：
The thick dust arrester of blast furnace 1, dry method 2, dry method essence dust arrester 3, adsorption tower 4, spray washing tower (for removing CO2) 5, pressure regulation valve group 6, generating
Device 7, heater 8, the first adsorption tower 401, the second adsorption tower 402, the first adsorbent 410, the second adsorbent 420, first
Electrodynamic valve 501, the second electrodynamic valve 502, the 3rd electrodynamic valve 503, the 4th electrodynamic valve 504, the 5th electrodynamic valve 505, the 6th electrodynamic valve
506th, the 7th electrodynamic valve 507, the 8th electrodynamic valve 508, the 9th electrodynamic valve 509, the tenth electrodynamic valve 510, the 11st electrodynamic valve 511,
Burning chemistry chains reactor 9, oxygen carrier 901, thermophore 10, first circulation blower fan 11, second circulation blower fan 12.
Specific embodiment
In order to be more clearly understood to the technical characteristic of the present invention, purpose and beneficial effect, the now skill to the present invention
Art scheme carry out described further below, but it is not intended that to the present invention can practical range restriction.
Embodiment 1
Present embodiments provide a kind of blast furnace gas dry cleaning system, as shown in figure 5, this system includes：Dry method is slightly removed
Dirt device 2, dry method essence dust arrester 3, the first adsorption tower 401, the second adsorption tower 402, burning chemistry chains reactor 9, thermophore
10th, first circulation blower fan 11 and second circulation blower fan 12；
The blast furnace gas outlet of blast furnace 1 furnace roof is sequentially connected to the thick dust arrester of dry method 2 and dry method essence dedusting by pipeline
Device 2, the gas exit after the dedusting of dry method essence dust arrester 3 is connected to the first adsorption tower 401 and second by pipeline respectively
The gas entry of adsorption tower 402 bottom of towe；The tower top of the first adsorption tower 401 and the second adsorption tower 402 is connected to by pipeline respectively
TRT 7 in parallel and pressure regulation valve group 6 and then connection gaspipe network；And the gas entry pipe of the first adsorption tower 401 bottom of towe
First electrodynamic valve 501 is provided with road, the first adsorption tower 401 tower top is connected to the TRT 7 of parallel connection and the pipe of pressure regulation valve group 6
Second electrodynamic valve 502 is provided with road；It is provided with the 5th electrodynamic valve 505 on the gas entry pipeline of the second adsorption tower 402 bottom of towe,
Second adsorption tower 402 tower top is connected to and is provided with the 6th electrodynamic valve 506 on the TRT 7 of parallel connection and the pipeline of pressure regulation valve group 6；
The bottom of towe of the first adsorption tower 401 and the second adsorption tower 402 is also respectively provided with desorption NH3Outlet conduit, and the
The desorption NH of one adsorption tower 401 bottom of towe34th electrodynamic valve 504, the desorption of the second adsorption tower 401 bottom of towe are provided with outlet conduit
NH38th electrodynamic valve 508 is provided with outlet conduit；Article two, it is desorbed NH3Outlet conduit is all connected to burning chemistry chains reactor 9
Reduction reaction gas access, burning chemistry chains reactor 9 is additionally provided with reduzate gas outlet, this reduzate gas
Outlet is connected to thermophore 10 by pipeline, and the position near thermophore 10 is provided with the 11st electrodynamic valve on this pipeline
511；And air or oxygen-enriched air enter pipeline and are connected to this pipeline by threeway, and that is, burning chemistry chains reactor is also original
Thing gas outlet is also oxidation regeneration reaction gas inlet, is provided with the 9th electronic on this air or oxygen-enriched air entrance pipeline
Valve 509 and second circulation blower fan 12, and the reduction reaction gas access of burning chemistry chains reactor is also oxidation product gas
Outlet, the pipeline that the outlet of this oxidation product gas is connected with reduzate gas outlet and thermophore 10 by pipeline and threeway is even
Logical, and it is provided with the tenth electrodynamic valve 510 on the pipeline that the outlet of this oxidation product gas is connected with thermophore 10；
The tower top of the first adsorption tower 401 and the second adsorption tower 402 is also respectively provided with high temperature carrier gas and enters pipeline；Thermophore
It is additionally provided with carrier gas on 10 and enters pipeline, and be provided with first circulation blower fan 11 on this carrier gas entrance pipeline；Burning chemistry chains
The oxidation product gas outlet of reactor 9 and reduzate gas outlet are all connected to thermophore 10 by pipeline and store for it
Heat, the high temperature carrier gas after thermophore 9 heating is passed through high temperature carrier gas outlet and is connected to the first adsorption tower 401 and the second absorption
The high temperature carrier gas of tower 402 tower top enters pipeline, and the high temperature carrier gas of the first adsorption tower 401 tower top enters and is provided with the on pipeline
Three electrodynamic valves 503, the high temperature carrier gas of the second adsorption tower 402 tower top enters and is provided with the 7th electrodynamic valve 507 on pipeline；Described accumulation of heat
Product gas outlet pipeline is additionally provided with device for emptying as the oxidation product gas after its accumulation of heat and reduzate gas；
It is filled with the first adsorbent 410 in first adsorption tower 401, in the second adsorption tower 402, be filled with the second adsorbent
420；Heater 8 is provided with burning chemistry chains reactor 9, in burning chemistry chains reactor 9, is filled with oxygen carrier 901.
In the blast furnace gas dry cleaning system of the present embodiment, in described first adsorption tower and described second adsorption tower
Adsorbent includes in basic oxide or basic oxide and activated carbon, silica gel, activated alumina and molecular sieve etc. respectively
Plant or several mixture.First adsorption tower and the adsorbent in the second adsorption tower can identical it is also possible to slightly different,
As long as all containing basic oxide；Preferably, the adsorbent in the first adsorption tower and the second adsorption tower is the oxidation of alkali formula
Thing.Oxygen carrier in described burning chemistry chains reactor is included in Cu base load oxysome, Fe base load oxysome and Ni base load oxysome etc.
The combination of one or more；Preferably, the oxygen carrier in described burning chemistry chains reactor is Cu base load oxysome.Described dry method is thick
Dust arrester and described dry method essence dust arrester are respectively sack cleaner, electric cleaner, metal dusting device or sintered plate dedusting
Device.
Embodiment 2
Present embodiments provide a kind of blast furnace gas dry purification method, the method adopts the blast furnace coal that embodiment 1 provides
Air drying cleaning system, as shown in figure 5, it comprises the following steps：
(1) blast furnace gas discharged from blast furnace 1 furnace roof is made to sequentially enter the thick dust arrester of dry method 2 and dry method essence dust arrester
3 carry out dust removal process；Open the first electrodynamic valve 501 and the second electrodynamic valve 502, make about 90～200 DEG C (preferably 90 after dedusting
～120 DEG C) coal gas enter the first adsorption tower 401 with by NH therein3, the foreign gas such as HCl is by the first adsorption tower 401
First adsorbent 410 adsorbs, the wherein adsorption process of HCl based on chemisorbed, NH3Adsorption process with physical absorption be
Main；Then the gas after adsorption-edulcoration is made to enter gaspipe network after TRT 7 generating, if TRT 7 is not transported
Capable then by entering gaspipe network after pressure regulation valve group 6；
(2) when the first adsorbent 410 adsorption saturation in the first adsorption tower 401, close the first electrodynamic valve 501 and second
Electrodynamic valve 502, opens the 5th electrodynamic valve 505 and the 6th electrodynamic valve 506, so that the blast furnace gas discharged from blast furnace 1 furnace roof is entered successively
Enter the thick dust arrester of dry method 2 and after dry method essence dust arrester 3 carries out dust removal process, enter in parallel with the first adsorption tower 401 the
Two adsorption towers 402 make the NH in the coal gas of about 90～200 DEG C (preferably 90～120 DEG C) after dedusting3, the foreign gas such as HCl
Adsorbed by the second adsorbent 420 in the second adsorption tower 402；Then the gas after adsorption-edulcoration is made to pass through TRT 7
Gaspipe network is entered, if TRT 7 does not run, by entering gaspipe network after pressure regulation valve group 6 after electricity；
Meanwhile, open the 3rd electrodynamic valve 503, the 4th electrodynamic valve 504 and the 11st electrodynamic valve 511, and open first circulation
Blower fan 11 makes carrier gas pass through thermophore 10 to carry out heating the high temperature carrier gas obtaining 350～450 DEG C, and this thermophore 10 is by chemistry
Chain combustion reactor 9 makes it to add using noble gases (such as nitrogen) as heat transfer medium and with heater 8 when running for the 1st time
The hot accumulation of heat to 300～450 DEG C, the first adsorbent 410 is inhaled by the first adsorption tower 401 that this high temperature carrier gas enters adsorption saturation
Attached NH3Desorption out, makes desorption NH out3With oxidation state oxygen carrier 901 therein in entrance burning chemistry chains reactor 9
Carry out reduction reaction to generate reduzate gas (mainly including nitrogen, vapor and carbon dioxide) and release heat, chemical chain
The reduzate gas of combustion reactor 9 is emptied after thermophore 10 accumulation of heat；
(3) after the first adsorbent 410 wholly or largely desorption and regeneration in the first adsorption tower 401, stop first and follow
Ring blower fan 11, closing the 3rd electrodynamic valve 503 and the 4th electrodynamic valve 504, to stop being passed through high temperature load in the first adsorption tower 401
Gas, the first adsorption tower 401 natural cooling is lowered the temperature；Open second circulation blower fan 12, the 9th electrodynamic valve 509 and the tenth electrodynamic valve 510,
So that air or oxygen-enriched air is entered, to carry out oxidation regeneration with reduction-state oxygen carrier 901 therein in burning chemistry chains reactor 9 anti-
Oxidation product gas should be generated and release heat, the oxidation product gas of burning chemistry chains reactor 9 pass through thermophore 10 accumulation of heat
After empty；
When the reduction-state oxygen carrier 901 wholly or largely oxidized regeneration in burning chemistry chains reactor 9, that is, aoxidize
When oxygen volumetric concentration in product gas reaches 2%, stop second circulation blower fan 12, close the 9th electrodynamic valve 509 and the tenth
Electrodynamic valve 510, to stop being passed through air or oxygen-enriched air in burning chemistry chains reactor 9；
(4) when the second adsorbent 420 adsorption saturation in the second adsorption tower 402, close the 5th electrodynamic valve 505 and the 6th
Electrodynamic valve 506, opens the first electrodynamic valve 501 and the second electrodynamic valve 502, so that the blast furnace gas discharged from blast furnace 1 furnace roof is entered successively
Enter the thick dust arrester of dry method 2 and dry method essence dust arrester 3 carry out dust removal process after；It is again introduced into the first adsorption tower 401 to be inhaled
Attached, make the gas after adsorption-edulcoration after TRT 7 generating or by entering gaspipe network after pressure regulation valve group 6；
Desorption and regeneration is carried out to the second adsorbent 420 in the second adsorption tower 402 simultaneously, that is, open the 7th electrodynamic valve 507
With the 8th electrodynamic valve 508, and open first circulation blower fan 11 and make carrier gas pass through thermophore 10 and carry out heating to obtain 350～450 DEG C
DEG C high temperature carrier gas, this high temperature carrier gas enters the second adsorption tower 402 NH of adsorbing the second adsorbent 420 of adsorption saturation3De-
Attached out, make desorption NH out3Enter in burning chemistry chains reactor 9 and reduced with oxidation state oxygen carrier 901 therein
Reaction generates reduzate gas (mainly including nitrogen, vapor and carbon dioxide) and releases heat, and burning chemistry chains react
The reduzate gas of device 9 is emptied after thermophore 10 accumulation of heat；
(5) after the second adsorbent 420 wholly or largely desorption and regeneration in the second adsorption tower 402, stop first and follow
Ring blower fan 11, closing the 7th electrodynamic valve 507 and the 8th electrodynamic valve 508, to stop being passed through high temperature load in the second adsorption tower 402
Gas, the second adsorption tower 402 natural cooling is lowered the temperature；Open second circulation blower fan 12, the 9th electrodynamic valve 509 and the tenth electrodynamic valve 510,
So that air or oxygen-enriched air is entered, to carry out oxidation regeneration with reduction-state oxygen carrier 901 therein in burning chemistry chains reactor 9 anti-
Oxidation product gas should be generated and release heat, the oxidation product gas of burning chemistry chains reactor 9 pass through thermophore 10 accumulation of heat
After empty；
When the reduction-state oxygen carrier 901 wholly or largely oxidized regeneration in burning chemistry chains reactor 9, that is, aoxidize
When oxygen volumetric concentration in product gas reaches 2%, stop second circulation blower fan 12, close the 9th electrodynamic valve 509 and the tenth
Electrodynamic valve 510, to stop being passed through air or oxygen-enriched air in burning chemistry chains reactor 9；
Make the first adsorption tower 401 and the second adsorption tower 402 alternating sorbent and regeneration, realize the dry cleaning of blast furnace gas.
Test purify after blast furnace gas condensate water pH value, find its pH value be 6～8 it was demonstrated that purify after blast furnace gas
Middle chlorinity<5mg/Nm3, fundamentally solve salification and the etching problem of TRT device, tubing and equipment etc..
Claims (10)
1. a kind of blast furnace gas dry purification method, it comprises the following steps：
(1) make from blast furnace roof discharge blast furnace gas sequentially enter the thick dust arrester of dry method and dry method essence dust arrester removed
After dirt is processed；The foreign gas entering in the coal gas after the first adsorption tower makes dedusting is adsorbed by the adsorbent in the first adsorption tower；
Then enter gaspipe network after so that the gas after adsorption-edulcoration is generated electricity by TRT, if TRT does not run, lead to
Gaspipe network is entered after crossing pressure regulator valve group；
(2) when the adsorbent adsorption saturation in the first adsorption tower, the blast furnace gas discharged from blast furnace roof is made to sequentially enter dry
The thick dust arrester of method and dry method essence dust arrester carry out dust removal process after；Entering second adsorption tower in parallel with the first adsorption tower makes
The foreign gas in coal gas after dedusting is adsorbed by the adsorbent in the second adsorption tower；Then the gas after adsorption-edulcoration is made to lead to
Cross after TRT generates electricity and enter gaspipe network, if TRT does not run, enter gaspipe network after pressure regulation valve group；
Make high temperature carrier gas enter the first adsorption tower of adsorption saturation by adsorbent NH simultaneously3Desorption out, makes desorption out
NH3Enter and carry out reduction reaction generation reduzate gas in burning chemistry chains reactor with oxidation state oxygen carrier therein simultaneously
Release heat；
(3) after adsorbent wholly or largely desorption and regeneration in the first adsorption tower, stop being passed through high temperature carrier gas thereto, the
One adsorption tower natural cooling cooling；Make air or oxygen-enriched air enter in burning chemistry chains reactor with reduction-state oxygen carrier therein
Body carries out oxidation regeneration reaction and generates oxidation product gas and release heat；
When the reduction-state oxygen carrier wholly or largely oxidized regeneration in burning chemistry chains reactor, stop being passed through thereto
Air or oxygen-enriched air；
(4) when the adsorbent adsorption saturation in the second adsorption tower, the blast furnace gas discharged from blast furnace roof is made to sequentially enter dry
The thick dust arrester of method and dry method essence dust arrester carry out dust removal process after；It is again introduced into the first adsorption tower to be adsorbed, make through inhaling
Enter gaspipe network by TRT after gas after attached remove impurity is generated electricity or after pressure regulation valve group；
Adsorbent in second adsorption tower is carried out with desorption and regeneration simultaneously, the chemistry that the step of this desorption and regeneration and this step are related to
Reduction reaction process in chain combustion reactor and oxidation regeneration course of reaction are all carried out with to the adsorbent in the first adsorption tower
The step of desorption and regeneration is identical；
Make the first adsorption tower and the second adsorption tower alternating sorbent and regeneration, realize the dry cleaning of blast furnace gas.
2. blast furnace gas dry purification method according to claim 1, wherein, described high temperature carrier gas is to make carrier gas pass through to store
Obtained from hot device is heated, the temperature of described high temperature carrier gas is 350～450 DEG C；And described burning chemistry chains reactor
Reduzate gas and oxidation product gas empty all after described thermophore accumulation of heat, described burning chemistry chains reactor exists
It is made to be heated to 300～450 DEG C, after heating using noble gases as heat transfer medium and by heater when running 1st time
Noble gases are emptied after described thermophore accumulation of heat.
3. blast furnace gas dry purification method according to claim 1, wherein, enters the first adsorption tower or the second adsorption tower
Dedusting after coal gas temperature be 90～200 DEG C, preferably 90～120 DEG C.
4. blast furnace gas dry purification method according to claim 1, wherein, described first adsorption tower is inhaled with described second
Adsorbent in attached tower includes basic oxide or basic oxide and activated carbon, silica gel, activated alumina and molecular sieve respectively
One or more of mixture.
5. blast furnace gas dry purification method according to claim 1, wherein, described first adsorption tower is inhaled with described second
Adsorbent desorption and regeneration in attached tower is carried out at 300～400 DEG C.
6. blast furnace gas dry purification method according to claim 1, wherein, load in described burning chemistry chains reactor
Oxysome includes the combination of one or more of Cu base load oxysome, Fe base load oxysome and Ni base load oxysome；Preferably, described chemistry
Oxygen carrier in chain combustion reactor is Cu base load oxysome.
7. blast furnace gas dry purification method according to claim 1, wherein, oxygen in described burning chemistry chains reactor
The reduction reaction changing state oxygen carrier is carried out at 400～500 DEG C, the reaction of the oxidation regeneration of reduction-state oxygen carrier be 450～
500 DEG C are carried out.
8. blast furnace gas dry purification method according to claim 1, wherein, the thick dust arrester of described dry method and described dry
Method essence dust arrester is respectively sack cleaner, electric cleaner, metal dusting device or sinter-plate precipitator.
9. a kind of blast furnace gas dry cleaning system, this system at least includes：The smart dust arrester of the thick dust arrester of dry method, dry method,
First adsorption tower, the second adsorption tower and burning chemistry chains reactor；
The blast furnace gas outlet of blast furnace roof is sequentially connected to the thick dust arrester of dry method and dry method essence dust arrester by pipeline, does
Gas exit after the dedusting of method essence dust arrester is connected to the first adsorption tower and the second adsorption tower bottom of towe by pipeline respectively
Gas entry；The tower top of the first adsorption tower and the second adsorption tower is connected to TRT and the pressure regulator valve of parallel connection respectively by pipeline
Group and then connection gaspipe network；
The tower top of the first adsorption tower and the second adsorption tower is also respectively provided with high temperature carrier gas and enters pipeline, the first adsorption tower and second
The bottom of towe of adsorption tower is also respectively provided with desorption NH3Outlet conduit；Article two, it is desorbed NH3Outlet conduit is all connected to burning chemistry chains
The reduction reaction gas access of reactor, burning chemistry chains reactor is additionally provided with reduzate gas outlet, and this is also original
Air is connected with the pipeline of thing gas outlet or oxygen-enriched air enters pipeline, i.e. the reduzate gas of burning chemistry chains reactor
Body outlet is also oxidation regeneration reaction gas inlet, and the reduction reaction gas access of burning chemistry chains reactor is also oxidation
Product gas outlet；And it is provided with heater on burning chemistry chains reactor；
All it is filled with adsorbent in first adsorption tower and the second adsorption tower；It is filled with oxygen carrier in burning chemistry chains reactor.
10. blast furnace gas dry cleaning system according to claim 9, it also includes thermophore, and described thermophore sets
It is equipped with carrier gas and enter pipeline, and the oxidation product gas outlet of described burning chemistry chains reactor and reduzate gas outlet
All described thermophore is connected to come for its accumulation of heat, high temperature carrier gas is passed through in the high temperature carrier gas after described thermophore heating by pipeline
Outlet is connected to the first adsorption tower and the high temperature carrier gas of the second absorption column overhead enters on pipeline, and described thermophore also
It is provided with product gas outlet pipeline for emptying as the oxidation product gas after its accumulation of heat and reduzate gas.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107385128A (en) * | 2017-09-15 | 2017-11-24 | 中冶赛迪工程技术股份有限公司 | A kind of blast furnace gas spraying methods of eliminating acidity and device for not reducing calorific value of gas |
| CN110252068A (en) * | 2019-07-15 | 2019-09-20 | 湖北申昙环保新材料有限公司 | The desulfurizing and purifying method of blast furnace gas |
| CN110252070A (en) * | 2019-07-15 | 2019-09-20 | 湖北申昙环保新材料有限公司 | The purification method of blast furnace gas |
| CN110252069A (en) * | 2019-07-15 | 2019-09-20 | 湖北申昙环保新材料有限公司 | The sulfur method of blast furnace gas |
| CN111214928A (en) * | 2018-11-26 | 2020-06-02 | 中国科学院大连化学物理研究所 | Factory waste gas treatment system containing ammonia gas |
| CN115786607A (en) * | 2022-11-15 | 2023-03-14 | 中冶赛迪工程技术股份有限公司 | Blowing method and system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202465752U (en) * | 2012-02-29 | 2012-10-03 | 中冶赛迪工程技术股份有限公司 | Dry process dust removing device of blast furnace gas |
| CN103060015A (en) * | 2013-01-24 | 2013-04-24 | 中冶赛迪工程技术股份有限公司 | Blast-furnace gas dry purification device |
| CN104152185A (en) * | 2014-08-20 | 2014-11-19 | 衡阳华菱钢管有限公司 | Method for transformation, adsorption and purification of blast furnace gas and its system thereof |
| CN105435600A (en) * | 2015-12-16 | 2016-03-30 | 北京科技大学 | Pollution gas purification system and purification method |
| CN105435599A (en) * | 2015-12-16 | 2016-03-30 | 北京科技大学 | Pollution gas treatment system and treatment method |
| CN206266644U (en) * | 2016-12-14 | 2017-06-20 | 北京京诚泽宇能源环保工程技术有限公司 | A kind of blast furnace gas dry cleaning system |
-
2016
- 2016-12-14 CN CN201611154112.8A patent/CN106435077B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202465752U (en) * | 2012-02-29 | 2012-10-03 | 中冶赛迪工程技术股份有限公司 | Dry process dust removing device of blast furnace gas |
| CN103060015A (en) * | 2013-01-24 | 2013-04-24 | 中冶赛迪工程技术股份有限公司 | Blast-furnace gas dry purification device |
| CN104152185A (en) * | 2014-08-20 | 2014-11-19 | 衡阳华菱钢管有限公司 | Method for transformation, adsorption and purification of blast furnace gas and its system thereof |
| CN105435600A (en) * | 2015-12-16 | 2016-03-30 | 北京科技大学 | Pollution gas purification system and purification method |
| CN105435599A (en) * | 2015-12-16 | 2016-03-30 | 北京科技大学 | Pollution gas treatment system and treatment method |
| CN206266644U (en) * | 2016-12-14 | 2017-06-20 | 北京京诚泽宇能源环保工程技术有限公司 | A kind of blast furnace gas dry cleaning system |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107385128A (en) * | 2017-09-15 | 2017-11-24 | 中冶赛迪工程技术股份有限公司 | A kind of blast furnace gas spraying methods of eliminating acidity and device for not reducing calorific value of gas |
| CN107385128B (en) * | 2017-09-15 | 2023-04-11 | 中冶赛迪工程技术股份有限公司 | Blast furnace gas spraying deacidification method and device without reducing gas heat value |
| CN111214928A (en) * | 2018-11-26 | 2020-06-02 | 中国科学院大连化学物理研究所 | Factory waste gas treatment system containing ammonia gas |
| CN111214928B (en) * | 2018-11-26 | 2021-09-14 | 中国科学院大连化学物理研究所 | Factory waste gas treatment system containing ammonia gas |
| CN110252068A (en) * | 2019-07-15 | 2019-09-20 | 湖北申昙环保新材料有限公司 | The desulfurizing and purifying method of blast furnace gas |
| CN110252070A (en) * | 2019-07-15 | 2019-09-20 | 湖北申昙环保新材料有限公司 | The purification method of blast furnace gas |
| CN110252069A (en) * | 2019-07-15 | 2019-09-20 | 湖北申昙环保新材料有限公司 | The sulfur method of blast furnace gas |
| CN115786607A (en) * | 2022-11-15 | 2023-03-14 | 中冶赛迪工程技术股份有限公司 | Blowing method and system |
| CN115786607B (en) * | 2022-11-15 | 2024-03-26 | 中冶赛迪工程技术股份有限公司 | Blowing method and system |
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