CN110479038A - A kind of exhaust treatment system and processing method suitable for coal chemical industry - Google Patents

A kind of exhaust treatment system and processing method suitable for coal chemical industry Download PDF

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Publication number
CN110479038A
CN110479038A CN201910829843.5A CN201910829843A CN110479038A CN 110479038 A CN110479038 A CN 110479038A CN 201910829843 A CN201910829843 A CN 201910829843A CN 110479038 A CN110479038 A CN 110479038A
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China
Prior art keywords
gas
desorption
water spray
pipeline
adsorption concentration
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CN201910829843.5A
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Chinese (zh)
Inventor
朱洋
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Arensond (tianjin) Energy Technology Co Ltd
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Arensond (tianjin) Energy Technology Co Ltd
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Priority to CN201910829843.5A priority Critical patent/CN110479038A/en
Publication of CN110479038A publication Critical patent/CN110479038A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D47/00Separating dispersed particles from gases, air or vapours by liquid as separating agent
    • B01D47/06Spray cleaning
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/02Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • B01D53/04Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/14Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/14Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
    • B01D53/1456Removing acid components
    • B01D53/1468Removing hydrogen sulfide
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G7/00Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
    • F23G7/06Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
    • F23G7/07Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases in which combustion takes place in the presence of catalytic material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2257/00Components to be removed
    • B01D2257/40Nitrogen compounds
    • B01D2257/406Ammonia
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2259/00Type of treatment
    • B01D2259/40Further details for adsorption processes and devices
    • B01D2259/40083Regeneration of adsorbents in processes other than pressure or temperature swing adsorption
    • B01D2259/40088Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating
    • B01D2259/4009Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating using hot gas
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02CCAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
    • Y02C20/00Capture or disposal of greenhouse gases
    • Y02C20/20Capture or disposal of greenhouse gases of methane
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Abstract

The present invention is a kind of exhaust treatment system and processing method suitable for coal chemical industry, processing system, including waste gas collecting system, water spray scrubber system and catalytic combustion system, Adsorption Concentration system is connected between the water spray scrubber system and the catalytic combustion system, processing method includes the following steps: that the exhaust gas for preparing water-coal-slurry enters water spray scrubber system by waste gas collecting system, the exhaust gas come out from water spray scrubbing tower enters Adsorption Concentration system, concentrated gas by concentration adsorption system desorption enters catalytic combustion system, nontoxic gas is converted into be emitted into atmosphere.The present invention is stable, by particulate matter, NH3And H2S soluble substance is eluted out from exhaust gas, organic pollutant in exhaust gas is adsorbed and is desorbed concentration, organic matter is made to be converted into carbon dioxide and water, the treatment effeciency of non-methane total hydrocarbons is up to 95% or more, secondary pollution is not generated, the economical of exhaust-gas treatment is enhanced.

Description

A kind of exhaust treatment system and processing method suitable for coal chemical industry
Technical field
The present invention relates to technical field of waste gas treatment more particularly to a kind of exhaust treatment systems and place suitable for coal chemical industry Reason method.
Background technique
In the industrial production, the discharge of exhaust gas causes serious influence to atmosphere and ecological environment.In coal chemical industry In production process, the major pollutants contained in water-coal-slurry preparation process exhaust gas are NH3、H2S, particulate matter and non-methane total hydrocarbons etc., The discharge of exhaust gas causes very big pollution to environment,
It is more for " UV photooxidation catalysis+active carbon is inhaled to using in the processing system for preparing coal water slurry process exhaust gas at present It is attached " or " catalysis of UV photooxidation+catalysis burning " processing system, but during processing, the service performance of UV lamp pipe can be with fortune The row time constantly decays, and treatment effeciency is made to decline to a great extent, and is not suitable for the production project successively run, and subsequent work Property charcoal absorption will use a large amount of active carbon, and need to regularly replace, at least first quarter one changes, and active carbon is expensive, makes With rear generation dangerous waste, increase processing cost.Simultaneously as Some Enterprises are produced using process spent water progress coal-grinding in continuous production Flammable hydrocarbons concentration has certain fluctuation in raw exhaust gas, directlys adopt Production by Catalytic Combustion Process, and treatment effect is not good enough.
Summary of the invention
Present invention seek to address that the deficiencies in the prior art, and provide a kind of exhaust treatment system suitable for coal chemical industry and place Reason method.
The present invention to achieve the above object, using following technical scheme:
A kind of exhaust treatment system suitable for coal chemical industry, including waste gas collecting system, water spray scrubber system and urge Change combustion system, which is characterized in that the waste gas collecting system is connected with the water spray scrubber system, and the water spray is washed It washs and is connected with Adsorption Concentration system between Tower System and the catalytic combustion system, the waste gas collecting system includes surge tank, institute The inlet end for stating surge tank is connected with air inlet pipe, and the water spray scrubber system includes that water spray scrubbing tower and sewage treatment are set Standby, the top in the water spray scrubbing tower is equipped with demisting layer, in the water spray scrubbing tower below the demisting layer Top be equipped with several spray heads, the water inlet end of the spray head is connected with same spray piping, and the water inlet end of the spray piping passes through The side wall of the water spray scrubbing tower is connected to the sewage disposal device, is pumped on the spray piping equipped with Sprayer Circulation, institute It states and is connected with pipeline one between the sidewall bottom of water spray scrubbing tower and the outlet side of the surge tank, wind is equipped on the pipeline one Machine, the water spray scrubbing tower and the Adsorption Concentration system connectivity, the Adsorption Concentration system includes the absorption being set side by side It is equipped with solid absorbent in inspissator one and Adsorption Concentration device two, the Adsorption Concentration device one and the Adsorption Concentration device two, The inlet end of the inlet end of the Adsorption Concentration device one and the Adsorption Concentration device two is connected with absorption branch pipe(tube) one, absorption branch respectively The inlet end of pipeline two, the absorption branch pipe(tube) one and the absorption branch pipe(tube) two is connected with same absorption pipeline, the adsorption tube The inlet end in road is connect with the outlet side of the water spray scrubbing tower, and the outlet side of the Adsorption Concentration device one and the absorption are dense The outlet side of contracting device two is connected with going out gas branch pipe road one, going out gas branch pipe road two, the going out gas branch pipe road one and the outlet branch respectively Pipeline two is connected with same outlet pipe, and the outlet side of the outlet pipe is connected with chimney, and the Adsorption Concentration system is urged with described Change combustion system connection, the catalytic combustion system includes catalytic combustor, and the side wall in the catalytic combustor is handed over equipped with heat Parallel operation, one end of the heat exchanger are connected with tonifying Qi pipeline, and the other end of the tonifying Qi pipeline passes through the catalytic combustor Side wall peace is connected with benefit air-cooler, and the side far from the benefit air-cooler is equipped with catalytic reactor vertically in the catalytic combustor, Catalyst is equipped in the catalytic reactor, the top of the heat exchanger is connected with desorption pipeline, wind needed for the desorption pipeline Amount is less than the exhaust gas air quantity of the absorption pipeline adsorption treatment, and the top that the desorption pipeline passes through the catalytic combustor is distinguished Be connected with desorption branch pipe(tube) one and desorption branch pipe(tube) two, the desorption branch pipe(tube) one and the desorption branch pipe(tube) two respectively with the suction Attached inspissator one, the Adsorption Concentration device two connect, and are connected with respectively on the Adsorption Concentration device one and the Adsorption Concentration device two Concentrated gas delivery pipe one, desorption concentrated gas delivery pipe two, the desorption concentrated gas delivery pipe one and desorption concentration is desorbed Air shooter two is connected with same desorption concentrated gas delivery pipe, and the desorption concentrated gas delivery pipe is burnt across the catalysis The side wall of room is connected to the catalytic reactor, on the catalytic reactor with it is described desorption concentrated gas delivery pipe it is opposite one Side is connected with pipeline two, and the side wall that the pipeline two passes through the catalytic combustor is connected to the chimney, pacifies on the pipeline two There is main air blower.
Preferably, the type of the water spray scrubbing tower is upright reverse-flow scrubbing tower.
Preferably, the demisting layer uses PP filler.
Preferably, the demisting layer is circular arc Taylor filler for flower ring.
Preferably, the spray head uses rotary nozzle.
Preferably, the solid absorbent uses cellular activated carbon.
Preferably, the catalyst is any one in platinum catalyst, palladium catalyst and ruthenium catalyst.
The present invention also provides a kind of waste gas processing methods suitable for coal chemical industry, include the following steps:
A, the gas sampling of water-coal-slurry preparation is entered into water spray scrubbing tower system by waste gas collecting system in surge tank System, after the demisting layer demisting section processing in water spray scrubbing tower, by particulate matter, NH3And H2S soluble substance is from exhaust gas It is eluted out, carries out the processing of next step, wherein in water spray scrubber system, followed using sewage disposal device and spray Ring pump carries out the processing and recycling of shower water;
B, enter Adsorption Concentration system from the exhaust gas that water spray scrubbing tower comes out, the contaminant component in exhaust gas is adsorbed on On solid absorbent in attached inspissator one and Adsorption Concentration device two, achieve the purpose that separate pollutant from exhaust gas, then benefit The hot-air generated in catalytic combustor with benefit air-cooler and the heat exchanger in catalytic combustion system is by solid absorbent institute The desorption of contaminants of absorption detaches, and achievees the purpose that solid absorbent is regenerated and reused, by desorption process institute The air quantity needed is far smaller than the exhaust gas air quantity of adsorption treatment, and therefore, pollutant is concentrated in Adsorption Concentration process, nontoxic Innocuous gas through smoke stack emission into atmosphere, while hot-air be catalytic combustion system generate, achieve the effect that reduce energy consumption;
C, enter catalytic combustion system by the concentrated gas of concentration adsorption system desorption, burnt using catalyst degradation warm Degree, since the carrier of catalyst has biggish specific surface area and suitable aperture, when the organic gas for being heated to 260-450 DEG C When passing through catalyst, oxygen and organic gas are attracted on the catalyst on porous material surface layer, increase oxygen and organic gas connects The chance hit is touched, activity is improved, so that organic gas and oxygen is generated chemical reaction and is generated carbon dioxide and water, does not generate two Secondary pollution enhances the economical of exhaust-gas treatment, while the heat recovery and utilization generated, to keep exhaust gas conversion nontoxic Innocuous gas is adsorbed and is desorbed concentration to organic pollutant in exhaust gas, catalyst uses by the way that Adsorption Concentration system is arranged Service life is long, by the way that catalytic combustion system is arranged, the exhaust gas after concentration is carried out combustion reaction, using hot-air by solid absorbent Adsorbed desorption of contaminants detaches, and pollutant is concentrated in Adsorption Concentration process, while hot-air is catalysis combustion Burning system generates, and achievees the effect that reduce energy consumption, so that organic matter is converted into carbon dioxide and water, nontoxic gas is in main air blower Under the action of, through smoke stack emission into atmosphere.
The beneficial effects of the present invention are: the present invention it is stable, by be arranged water spray scrubber system, by particulate matter, NH3And H2S soluble substance is eluted out from exhaust gas, NH in exhaust gas3、H2The treatment effeciency of S and particulate matter leads to up to 99% or more Setting Adsorption Concentration system is crossed, organic pollutant in exhaust gas is adsorbed and is desorbed concentration, catalyst long service life passes through Catalytic combustion system is set, the exhaust gas after concentration is subjected to combustion reaction, using hot-air by the adsorbed dirt of solid absorbent Dye object desorption detaches, and pollutant is concentrated in Adsorption Concentration process, while hot-air is catalytic combustion system generation, Achieve the effect that reduce energy consumption, organic matter made to be converted into carbon dioxide and water, the treatment effeciency of non-methane total hydrocarbons up to 95% or more, Secondary pollution is not generated, the economical of exhaust-gas treatment is enhanced.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention;
Fig. 2 is flow chart of the invention;
In figure: 1- surge tank;2- blower;3- water spray scrubbing tower;31- demisting layer;32- spray head;4- sewage disposal device; 5- Sprayer Circulation pump;6- Adsorption Concentration device one;7- Adsorption Concentration device two;8- mends air-cooler;9- catalytic combustor;91- heat exchange Device;92- catalytic reactor;10- main air blower;11- chimney;
It is described in detail below with reference to the embodiment of the present invention referring to attached drawing.
Specific embodiment
Below with reference to embodiment, the invention will be further described:
Embodiment 1
A kind of exhaust treatment system suitable for coal chemical industry, including waste gas collecting system, water spray scrubber system and urge Change combustion system, the waste gas collecting system connect with the water spray scrubber system, the water spray scrubber system with Adsorption Concentration system is connected between the catalytic combustion system, the waste gas collecting system includes surge tank 1, the surge tank 1 Inlet end be connected with air inlet pipe, the water spray scrubber system includes water spray scrubbing tower 3 and sewage disposal device 4, described Top in water spray scrubbing tower 3 is equipped with demisting layer 31, in the water spray scrubbing tower 3 of 31 lower section of demisting layer Top is equipped with several spray heads 32, and the water inlet end of the spray head 32 is connected with same spray piping, and the water inlet end of the spray piping is worn The side wall for crossing the water spray scrubbing tower 3 is connected to the sewage disposal device 4, is pumped on the spray piping equipped with Sprayer Circulation 5, pipeline one is connected between the sidewall bottom of the water spray scrubbing tower 3 and the outlet side of the surge tank 1, on the pipeline one Equipped with blower 2, the water spray scrubbing tower 3 and the Adsorption Concentration system connectivity, the Adsorption Concentration system includes setting side by side It is equipped in the Adsorption Concentration device 1 and Adsorption Concentration device 27 set, the Adsorption Concentration device 1 and the Adsorption Concentration device 27 The inlet end of solid absorbent, the inlet end of the Adsorption Concentration device 1 and the Adsorption Concentration device 27 is connected with absorption branch respectively The inlet end of pipeline one, absorption branch pipe(tube) two, the absorption branch pipe(tube) one and the absorption branch pipe(tube) two is connected with same adsorption tube The inlet end in road, the absorption pipeline is connect with the outlet side of the water spray scrubbing tower 3, and the Adsorption Concentration device 1 goes out Gas end and the outlet side of the Adsorption Concentration device 27 are connected with going out gas branch pipe road one, going out gas branch pipe road two, the going out gas branch pipe respectively Road one and the going out gas branch pipe road two are connected with same outlet pipe, and the outlet side of the outlet pipe is connected with chimney 11, the suction Attached concentration systems are connected to the catalytic combustion system, and the catalytic combustion system includes catalytic combustor 9, the catalysis burning Side wall in room 9 is equipped with heat exchanger 91, and one end of the heat exchanger 91 is connected with tonifying Qi pipeline, the tonifying Qi pipeline it is another It holds the side wall peace across the catalytic combustor 9 to be connected with and mends air-cooler 8, far from the benefit air-cooler 8 in the catalytic combustor 9 Side be equipped with catalytic reactor 92 vertically, be equipped with catalyst, the top of the heat exchanger 91 in the catalytic reactor 92 It is connected with desorption pipeline, air quantity needed for the desorption pipeline is less than the exhaust gas air quantity of the absorption pipeline adsorption treatment, the desorption The top that pipeline passes through the catalytic combustor 9 is connected with desorption branch pipe(tube) one and desorption branch pipe(tube) two, the desorption branch pipe respectively Road one and the desorption branch pipe(tube) two are connect with the Adsorption Concentration device 1, the Adsorption Concentration device 27 respectively, the absorption Desorption concentrated gas delivery pipe one, desorption concentrated gas delivery pipe are connected on inspissator 1 and the Adsorption Concentration device 27 respectively Two, the desorption concentrated gas delivery pipe one and desorption concentrated gas delivery pipe two are connected with same desorption concentrated gas delivery pipe, The side wall that the desorption concentrated gas delivery pipe passes through the catalytic combustor 9 is connected to the catalytic reactor 92, described to urge Change side opposite with the desorption concentrated gas delivery pipe on reactor 92 and be connected with pipeline two, the pipeline two passes through described urge The side wall for changing combustion chamber 9 is connected to the chimney 11, and main air blower 10 is equipped on the pipeline two.
The type of the water spray scrubbing tower 3 is upright reverse-flow scrubbing tower.
The demisting layer 31 uses PP filler.
The demisting layer 31 is circular arc Taylor filler for flower ring.
The spray head 32 uses rotary nozzle.
The solid absorbent uses cellular activated carbon.
The catalyst is platinum catalyst.
The present invention also provides a kind of waste gas processing methods suitable for coal chemical industry, include the following steps:
A, the gas sampling of water-coal-slurry preparation is entered into water spray scrubbing tower system by waste gas collecting system in surge tank 1 System, after 31 demisting section of the demisting layer processing in water spray scrubbing tower 3, by particulate matter, NH3And H2S soluble substance is from exhaust gas In be eluted out, carry out the processing of next step, wherein in water spray scrubber system, using sewage disposal device 4 and spray The processing and recycling of the progress shower water of circulating pump 5;
B, enter Adsorption Concentration system from the exhaust gas that water spray scrubbing tower 3 comes out, the contaminant component in exhaust gas is adsorbed on On solid absorbent in Adsorption Concentration device 1 and Adsorption Concentration device 27, achieve the purpose that separate pollutant from exhaust gas, Recycle benefit air-cooler 8 in catalytic combustion system and the hot-air that generates in catalytic combustor 9 of heat exchanger 91 by solid The adsorbed desorption of contaminants of adsorbent detaches, and achievees the purpose that solid absorbent is regenerated and reused, due to de- Air quantity required for attached process is far smaller than the exhaust gas air quantity of adsorption treatment, and therefore, Adsorption Concentration process obtains pollutant Concentration, nontoxic gas are emitted into atmosphere through chimney 11, while hot-air is catalytic combustion system generation, reaches reduction energy The effect of consumption;
C, enter catalytic combustion system by the concentrated gas of concentration adsorption system desorption, burnt using catalyst degradation warm Degree, since the carrier of catalyst has biggish specific surface area and suitable aperture, when the organic gas for being heated to 260 DEG C passes through When catalyst, oxygen and organic gas are attracted on the catalyst on porous material surface layer, increase oxygen and organic gas contact is touched The chance hit, improves activity, so that organic gas and oxygen is generated chemical reaction and is generated carbon dioxide and water, does not generate secondary dirt Dye enhances the economical of exhaust-gas treatment, while the heat recovery and utilization generated, to keep exhaust gas conversion nontoxic Gas is adsorbed and is desorbed concentration, catalyst service life to organic pollutant in exhaust gas by the way that Adsorption Concentration system is arranged It is long, by the way that catalytic combustion system is arranged, the exhaust gas after concentration is subjected to combustion reaction, is inhaled solid absorbent using hot-air Attached desorption of contaminants detaches, and pollutant is concentrated in Adsorption Concentration process, while hot-air is catalysis burning system System generates, and achievees the effect that reduce energy consumption, so that organic matter is converted into carbon dioxide and water, nontoxic gas is in main air blower 10 Under effect, it is emitted into atmosphere through chimney 11.
Embodiment 2
A kind of exhaust treatment system suitable for coal chemical industry, including waste gas collecting system, water spray scrubber system and urge Change combustion system, the waste gas collecting system connect with the water spray scrubber system, the water spray scrubber system with Adsorption Concentration system is connected between the catalytic combustion system, the waste gas collecting system includes surge tank 1, the surge tank 1 Inlet end be connected with air inlet pipe, the water spray scrubber system includes water spray scrubbing tower 3 and sewage disposal device 4, described Top in water spray scrubbing tower 3 is equipped with demisting layer 31, in the water spray scrubbing tower 3 of 31 lower section of demisting layer Top is equipped with several spray heads 32, and the water inlet end of the spray head 32 is connected with same spray piping, and the water inlet end of the spray piping is worn The side wall for crossing the water spray scrubbing tower 3 is connected to the sewage disposal device 4, is pumped on the spray piping equipped with Sprayer Circulation 5, pipeline one is connected between the sidewall bottom of the water spray scrubbing tower 3 and the outlet side of the surge tank 1, on the pipeline one Equipped with blower 2, the water spray scrubbing tower 3 and the Adsorption Concentration system connectivity, the Adsorption Concentration system includes setting side by side It is equipped in the Adsorption Concentration device 1 and Adsorption Concentration device 27 set, the Adsorption Concentration device 1 and the Adsorption Concentration device 27 The inlet end of solid absorbent, the inlet end of the Adsorption Concentration device 1 and the Adsorption Concentration device 27 is connected with absorption branch respectively The inlet end of pipeline one, absorption branch pipe(tube) two, the absorption branch pipe(tube) one and the absorption branch pipe(tube) two is connected with same adsorption tube The inlet end in road, the absorption pipeline is connect with the outlet side of the water spray scrubbing tower 3, and the Adsorption Concentration device 1 goes out Gas end and the outlet side of the Adsorption Concentration device 27 are connected with going out gas branch pipe road one, going out gas branch pipe road two, the going out gas branch pipe respectively Road one and the going out gas branch pipe road two are connected with same outlet pipe, and the outlet side of the outlet pipe is connected with chimney 11, the suction Attached concentration systems are connected to the catalytic combustion system, and the catalytic combustion system includes catalytic combustor 9, the catalysis burning Side wall in room 9 is equipped with heat exchanger 91, and one end of the heat exchanger 91 is connected with tonifying Qi pipeline, the tonifying Qi pipeline it is another It holds the side wall peace across the catalytic combustor 9 to be connected with and mends air-cooler 8, far from the benefit air-cooler 8 in the catalytic combustor 9 Side be equipped with catalytic reactor 92 vertically, be equipped with catalyst, the top of the heat exchanger 91 in the catalytic reactor 92 It is connected with desorption pipeline, air quantity needed for the desorption pipeline is less than the exhaust gas air quantity of the absorption pipeline adsorption treatment, the desorption The top that pipeline passes through the catalytic combustor 9 is connected with desorption branch pipe(tube) one and desorption branch pipe(tube) two, the desorption branch pipe respectively Road one and the desorption branch pipe(tube) two are connect with the Adsorption Concentration device 1, the Adsorption Concentration device 27 respectively, the absorption Desorption concentrated gas delivery pipe one, desorption concentrated gas delivery pipe are connected on inspissator 1 and the Adsorption Concentration device 27 respectively Two, the desorption concentrated gas delivery pipe one and desorption concentrated gas delivery pipe two are connected with same desorption concentrated gas delivery pipe, The side wall that the desorption concentrated gas delivery pipe passes through the catalytic combustor 9 is connected to the catalytic reactor 92, described to urge Change side opposite with the desorption concentrated gas delivery pipe on reactor 92 and be connected with pipeline two, the pipeline two passes through described urge The side wall for changing combustion chamber 9 is connected to the chimney 11, and main air blower 10 is equipped on the pipeline two.
The type of the water spray scrubbing tower 3 is upright reverse-flow scrubbing tower.
The demisting layer 31 uses PP filler.
The demisting layer 31 is circular arc Taylor filler for flower ring.
The spray head 32 uses rotary nozzle.
The solid absorbent uses cellular activated carbon.
The catalyst is palladium catalyst.
The present invention also provides a kind of waste gas processing methods suitable for coal chemical industry, include the following steps:
A, the gas sampling of water-coal-slurry preparation is entered into water spray scrubbing tower system by waste gas collecting system in surge tank 1 System, after 31 demisting section of the demisting layer processing in water spray scrubbing tower 3, by particulate matter, NH3And H2S soluble substance is from exhaust gas In be eluted out, carry out the processing of next step, wherein in water spray scrubber system, using sewage disposal device 4 and spray The processing and recycling of the progress shower water of circulating pump 5;
B, enter Adsorption Concentration system from the exhaust gas that water spray scrubbing tower 3 comes out, the contaminant component in exhaust gas is adsorbed on On solid absorbent in Adsorption Concentration device 1 and Adsorption Concentration device 27, achieve the purpose that separate pollutant from exhaust gas, Recycle benefit air-cooler 8 in catalytic combustion system and the hot-air that generates in catalytic combustor 9 of heat exchanger 91 by solid The adsorbed desorption of contaminants of adsorbent detaches, and achievees the purpose that solid absorbent is regenerated and reused, due to de- Air quantity required for attached process is far smaller than the exhaust gas air quantity of adsorption treatment, and therefore, Adsorption Concentration process obtains pollutant Concentration, nontoxic gas are emitted into atmosphere through chimney 11, while hot-air is catalytic combustion system generation, reaches reduction energy The effect of consumption;
C, enter catalytic combustion system by the concentrated gas of concentration adsorption system desorption, burnt using catalyst degradation warm Degree, since the carrier of catalyst has biggish specific surface area and suitable aperture, when the organic gas for being heated to 350 DEG C passes through When catalyst, oxygen and organic gas are attracted on the catalyst on porous material surface layer, increase oxygen and organic gas contact is touched The chance hit, improves activity, so that organic gas and oxygen is generated chemical reaction and is generated carbon dioxide and water, does not generate secondary dirt Dye enhances the economical of exhaust-gas treatment, while the heat recovery and utilization generated, to keep exhaust gas conversion nontoxic Gas is adsorbed and is desorbed concentration, catalyst service life to organic pollutant in exhaust gas by the way that Adsorption Concentration system is arranged It is long, by the way that catalytic combustion system is arranged, the exhaust gas after concentration is subjected to combustion reaction, is inhaled solid absorbent using hot-air Attached desorption of contaminants detaches, and pollutant is concentrated in Adsorption Concentration process, while hot-air is catalysis burning system System generates, and achievees the effect that reduce energy consumption, so that organic matter is converted into carbon dioxide and water, nontoxic gas is in main air blower 10 Under effect, it is emitted into atmosphere through chimney 11.
Embodiment 3
A kind of exhaust treatment system suitable for coal chemical industry, including waste gas collecting system, water spray scrubber system and urge Change combustion system, the waste gas collecting system connect with the water spray scrubber system, the water spray scrubber system with Adsorption Concentration system is connected between the catalytic combustion system, the waste gas collecting system includes surge tank 1, the surge tank 1 Inlet end be connected with air inlet pipe, the water spray scrubber system includes water spray scrubbing tower 3 and sewage disposal device 4, described Top in water spray scrubbing tower 3 is equipped with demisting layer 31, in the water spray scrubbing tower 3 of 31 lower section of demisting layer Top is equipped with several spray heads 32, and the water inlet end of the spray head 32 is connected with same spray piping, and the water inlet end of the spray piping is worn The side wall for crossing the water spray scrubbing tower 3 is connected to the sewage disposal device 4, is pumped on the spray piping equipped with Sprayer Circulation 5, pipeline one is connected between the sidewall bottom of the water spray scrubbing tower 3 and the outlet side of the surge tank 1, on the pipeline one Equipped with blower 2, the water spray scrubbing tower 3 and the Adsorption Concentration system connectivity, the Adsorption Concentration system includes setting side by side It is equipped in the Adsorption Concentration device 1 and Adsorption Concentration device 27 set, the Adsorption Concentration device 1 and the Adsorption Concentration device 27 The inlet end of solid absorbent, the inlet end of the Adsorption Concentration device 1 and the Adsorption Concentration device 27 is connected with absorption branch respectively The inlet end of pipeline one, absorption branch pipe(tube) two, the absorption branch pipe(tube) one and the absorption branch pipe(tube) two is connected with same adsorption tube The inlet end in road, the absorption pipeline is connect with the outlet side of the water spray scrubbing tower 3, and the Adsorption Concentration device 1 goes out Gas end and the outlet side of the Adsorption Concentration device 27 are connected with going out gas branch pipe road one, going out gas branch pipe road two, the going out gas branch pipe respectively Road one and the going out gas branch pipe road two are connected with same outlet pipe, and the outlet side of the outlet pipe is connected with chimney 11, the suction Attached concentration systems are connected to the catalytic combustion system, and the catalytic combustion system includes catalytic combustor 9, the catalysis burning Side wall in room 9 is equipped with heat exchanger 91, and one end of the heat exchanger 91 is connected with tonifying Qi pipeline, the tonifying Qi pipeline it is another It holds the side wall peace across the catalytic combustor 9 to be connected with and mends air-cooler 8, far from the benefit air-cooler 8 in the catalytic combustor 9 Side be equipped with catalytic reactor 92 vertically, be equipped with catalyst, the top of the heat exchanger 91 in the catalytic reactor 92 It is connected with desorption pipeline, air quantity needed for the desorption pipeline is less than the exhaust gas air quantity of the absorption pipeline adsorption treatment, the desorption The top that pipeline passes through the catalytic combustor 9 is connected with desorption branch pipe(tube) one and desorption branch pipe(tube) two, the desorption branch pipe respectively Road one and the desorption branch pipe(tube) two are connect with the Adsorption Concentration device 1, the Adsorption Concentration device 27 respectively, the absorption Desorption concentrated gas delivery pipe one, desorption concentrated gas delivery pipe are connected on inspissator 1 and the Adsorption Concentration device 27 respectively Two, the desorption concentrated gas delivery pipe one and desorption concentrated gas delivery pipe two are connected with same desorption concentrated gas delivery pipe, The side wall that the desorption concentrated gas delivery pipe passes through the catalytic combustor 9 is connected to the catalytic reactor 92, described to urge Change side opposite with the desorption concentrated gas delivery pipe on reactor 92 and be connected with pipeline two, the pipeline two passes through described urge The side wall for changing combustion chamber 9 is connected to the chimney 11, and main air blower 10 is equipped on the pipeline two.
The type of the water spray scrubbing tower 3 is upright reverse-flow scrubbing tower.
The demisting layer 31 uses PP filler.
The demisting layer 31 is circular arc Taylor filler for flower ring.
The spray head 32 uses rotary nozzle.
The solid absorbent uses cellular activated carbon.
The catalyst is ruthenium catalyst.
The present invention also provides a kind of waste gas processing methods suitable for coal chemical industry, include the following steps:
A, the gas sampling of water-coal-slurry preparation is entered into water spray scrubbing tower system by waste gas collecting system in surge tank 1 System, after 31 demisting section of the demisting layer processing in water spray scrubbing tower 3, by particulate matter, NH3And H2S soluble substance is from exhaust gas In be eluted out, carry out the processing of next step, wherein in water spray scrubber system, using sewage disposal device 4 and spray The processing and recycling of the progress shower water of circulating pump 5;B, enter Adsorption Concentration system from the exhaust gas that water spray scrubbing tower 3 comes out It unites, the contaminant component in exhaust gas is adsorbed on the solid absorbent in Adsorption Concentration device 1 and Adsorption Concentration device 27, is reached The purpose that pollutant is separated from exhaust gas recycles benefit air-cooler 8 and heat exchanger 91 in catalytic combustion system being catalyzed The hot-air generated in combustion chamber 9 detaches the adsorbed desorption of contaminants of solid absorbent, reaches solid absorbent The purpose of regeneration and reuse, the air quantity as required for desorption process are far smaller than the exhaust gas air quantity of adsorption treatment, Pollutant is concentrated in Adsorption Concentration process, and nontoxic gas is emitted into atmosphere through chimney 11, while hot-air is Catalytic combustion system generates, and achievees the effect that reduce energy consumption;
C, enter catalytic combustion system by the concentrated gas of concentration adsorption system desorption, burnt using catalyst degradation warm Degree, since the carrier of catalyst has biggish specific surface area and suitable aperture, when the organic gas for being heated to 450 DEG C passes through When catalyst, oxygen and organic gas are attracted on the catalyst on porous material surface layer, increase oxygen and organic gas contact is touched The chance hit, improves activity, so that organic gas and oxygen is generated chemical reaction and is generated carbon dioxide and water, does not generate secondary dirt Dye enhances the economical of exhaust-gas treatment, while the heat recovery and utilization generated, to keep exhaust gas conversion nontoxic Gas is adsorbed and is desorbed concentration, catalyst service life to organic pollutant in exhaust gas by the way that Adsorption Concentration system is arranged It is long, by the way that catalytic combustion system is arranged, the exhaust gas after concentration is subjected to combustion reaction, is inhaled solid absorbent using hot-air Attached desorption of contaminants detaches, and pollutant is concentrated in Adsorption Concentration process, while hot-air is catalysis burning system System generates, and achievees the effect that reduce energy consumption, so that organic matter is converted into carbon dioxide and water, nontoxic gas is in main air blower 10 Under effect, it is emitted into atmosphere through chimney 11.
Embodiment 4
It is shown in Table 1 for the exhaust gas VOCs treatment effect of certain Chemical Group water-coal-slurry workshop section 1, exhaust gas air quantity is 25000m3/ h。
1 exhaust-gas treatment effect table of table
Embodiment 5
2 are shown in Table for the exhaust gas VOCs treatment effect of certain Chemical Group water-coal-slurry workshop section 2, exhaust gas air quantity is 25000m3/ h。
2 exhaust-gas treatment effect table of table
In conclusion using be applicable in coal chemical industry exhaust treatment system handle after, exhaust-gas treatment work well, it can be achieved that Qualified discharge.
The present invention is exemplarily described above, it is clear that present invention specific implementation is not subject to the restrictions described above, As long as using the various improvement that the inventive concept and technical scheme of the present invention carry out, or not improved directly apply to other fields It closes, it is within the scope of the present invention.

Claims (8)

1. a kind of exhaust treatment system suitable for coal chemical industry, including waste gas collecting system, water spray scrubber system and catalysis Combustion system, which is characterized in that the waste gas collecting system is connected with the water spray scrubber system, the water spray washing Adsorption Concentration system is connected between Tower System and the catalytic combustion system, the waste gas collecting system includes surge tank (1), institute The inlet end for stating surge tank (1) is connected with air inlet pipe, and the water spray scrubber system includes at water spray scrubbing tower (3) and sewage It manages equipment (4), the top in the water spray scrubbing tower (3) is equipped with demisting layer (31), is located at below the demisting layer (31) Top in the water spray scrubbing tower (3) is equipped with several spray heads (32), and the water inlet end of the spray head (32) is connected with same spray Pipeline, the water inlet end of the spray piping passes through the side wall of the water spray scrubbing tower (3) and the sewage disposal device (4) connect It is logical, equipped with Sprayer Circulation pump (5), the sidewall bottom and the surge tank of the water spray scrubbing tower (3) on the spray piping (1) it is connected with pipeline one between outlet side, is equipped with blower (2) on the pipeline one, the water spray scrubbing tower (3) and the suction Attached concentration systems connection, the Adsorption Concentration system includes the Adsorption Concentration device one (6) and Adsorption Concentration device two being set side by side (7), solid absorbent, the Adsorption Concentration device are equipped in the Adsorption Concentration device one (6) and the Adsorption Concentration device two (7) The inlet end of one (6) and the inlet end of the Adsorption Concentration device two (7) are connected with absorption branch pipe(tube) one, absorption branch pipe(tube) two respectively, The inlet end of the absorption branch pipe(tube) one and the absorption branch pipe(tube) two is connected with same absorption pipeline, the air inlet of the absorption pipeline End is connect with the outlet side of the water spray scrubbing tower (3), the outlet side of the Adsorption Concentration device one (6) and the Adsorption Concentration The outlet side of device two (7) is connected with going out gas branch pipe road one, going out gas branch pipe road two, the going out gas branch pipe road one and the outlet branch respectively Pipeline two is connected with same outlet pipe, and the outlet side of the outlet pipe is connected with chimney (11), the Adsorption Concentration system and institute Catalytic combustion system connection is stated, the catalytic combustion system includes catalytic combustor (9), the side in the catalytic combustor (9) Wall is equipped with heat exchanger (91), and one end of the heat exchanger (91) is connected with tonifying Qi pipeline, and the other end of the tonifying Qi pipeline is worn The side wall peace for crossing the catalytic combustor (9), which is connected with, mends air-cooler (8), far from the benefit cold wind in the catalytic combustor (9) The side of machine (8) is equipped with catalytic reactor (92) vertically, and catalyst, the heat exchanger are equipped in the catalytic reactor (92) (91) top is connected with desorption pipeline, and air quantity needed for the desorption pipeline is less than the exhaust gas wind of the absorption pipeline adsorption treatment Amount, the top that the desorption pipeline passes through the catalytic combustor (9) are connected with desorption branch pipe(tube) one and desorption branch pipe(tube) two respectively, The desorption branch pipe(tube) one and the desorption branch pipe(tube) two respectively with the Adsorption Concentration device one (6), the Adsorption Concentration device two (7) it connects, is connected with desorption concentrated gas delivery pipe on the Adsorption Concentration device one (6) and the Adsorption Concentration device two (7) respectively One, concentrated gas delivery pipe two is desorbed, the desorption concentrated gas delivery pipe one and desorption concentrated gas delivery pipe two are connected with together One desorption concentrated gas delivery pipe, it is described desorption concentrated gas delivery pipe pass through the catalytic combustor (9) side wall with it is described Catalytic reactor (92) is connected to, and the side opposite with the desorption concentrated gas delivery pipe is connected on the catalytic reactor (92) Pipeline two, the side wall that the pipeline two passes through the catalytic combustor (9) are connected to the chimney (11), pacify on the pipeline two There are main air blower (10).
2. a kind of exhaust treatment system suitable for coal chemical industry according to claim 1, which is characterized in that the water spray The type of scrubbing tower (3) is upright reverse-flow scrubbing tower.
3. a kind of exhaust treatment system suitable for coal chemical industry according to claim 1, which is characterized in that the demisting layer (31) PP filler is used.
4. a kind of exhaust treatment system suitable for coal chemical industry according to claim 1, which is characterized in that the demisting layer It (31) is circular arc Taylor filler for flower ring.
5. a kind of exhaust treatment system suitable for coal chemical industry according to claim 1, which is characterized in that the spray head (32) rotary nozzle is used.
6. a kind of exhaust treatment system suitable for coal chemical industry according to claim 1, which is characterized in that the solid is inhaled Attached dose uses cellular activated carbon.
7. a kind of exhaust treatment system suitable for coal chemical industry according to claim 1, which is characterized in that the catalyst For any one in platinum catalyst, palladium catalyst and ruthenium catalyst.
8. a kind of waste gas processing method suitable for coal chemical industry, which comprises the steps of:
A, the gas sampling of water-coal-slurry preparation is entered into water spray scrubber system by waste gas collecting system in surge tank (1), After demisting layer (31) the demisting section processing in water spray scrubbing tower (3), by particulate matter, NH3And H2S soluble substance is from useless Be eluted out in gas, carry out the processing of next step, wherein in water spray scrubber system, using sewage disposal device (4) and Sprayer Circulation pumps the processing and recycling that (5) carry out shower water;
B, enter Adsorption Concentration system from the exhaust gas that water spray scrubbing tower (3) come out, the contaminant component in exhaust gas is adsorbed on On solid absorbent in attached inspissator one (6) and Adsorption Concentration device two (7), reach the mesh for separating pollutant from exhaust gas , the heat for recycling benefit air-cooler (8) and heat exchanger (91) in catalytic combustion system to generate in catalytic combustor (9) is empty Gas detaches the adsorbed desorption of contaminants of solid absorbent, reaches the mesh for regenerating solid absorbent and reusing , the air quantity as required for desorption process is far smaller than the exhaust gas air quantity of adsorption treatment, Adsorption Concentration process makes to pollute Object is concentrated, and nontoxic gas is emitted into atmosphere through chimney (11), while hot-air is catalytic combustion system generation, Achieve the effect that reduce energy consumption;
C, enter catalytic combustion system by the concentrated gas of concentration adsorption system desorption, using catalyst degradation ignition temperature, Since the carrier of catalyst has biggish specific surface area and suitable aperture, when the organic gas for being heated to 260-450 DEG C is logical When crossing catalyst, oxygen and organic gas are attracted on the catalyst on porous material surface layer, increase oxygen and organic gas contact The chance of collision, improves activity, so that organic gas and oxygen is generated chemical reaction and is generated carbon dioxide and water, does not generate secondary Pollution enhances the economical of exhaust-gas treatment, while the heat recovery and utilization generated, to make the nontoxic nothing of exhaust gas conversion Evil gas is adsorbed and is desorbed concentration to organic pollutant in exhaust gas, catalyst uses the longevity by the way that Adsorption Concentration system is arranged Exhaust gas after concentration is carried out combustion reaction, using hot-air by solid absorbent institute by the way that catalytic combustion system is arranged by life length The desorption of contaminants of absorption detaches, and pollutant is concentrated in Adsorption Concentration process, while hot-air is catalysis burning System generates, and achievees the effect that reduce energy consumption, so that organic matter is converted into carbon dioxide and water, nontoxic gas is in main air blower (10) it under the action of, is emitted into atmosphere through chimney (11).
CN201910829843.5A 2019-09-04 2019-09-04 A kind of exhaust treatment system and processing method suitable for coal chemical industry Pending CN110479038A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111228967A (en) * 2020-01-19 2020-06-05 上海化工研究院有限公司 Method for removing multi-component VOCs in waste gas by integrating washing-oxidation-adsorption coupling technology

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111228967A (en) * 2020-01-19 2020-06-05 上海化工研究院有限公司 Method for removing multi-component VOCs in waste gas by integrating washing-oxidation-adsorption coupling technology

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