CN106178872A - A kind of waste gas processing method - Google Patents

A kind of waste gas processing method Download PDF

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Publication number
CN106178872A
CN106178872A CN201610616720.XA CN201610616720A CN106178872A CN 106178872 A CN106178872 A CN 106178872A CN 201610616720 A CN201610616720 A CN 201610616720A CN 106178872 A CN106178872 A CN 106178872A
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Prior art keywords
waste gas
processing method
oxidation
gas processing
catalytic
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赵云
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Jiangsu Xinjiuyang Environmental Protection Equipment Technology Co Ltd
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Jiangsu Xinjiuyang Environmental Protection Equipment Technology Co Ltd
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Publication of CN106178872A publication Critical patent/CN106178872A/en
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    • 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
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/75Multi-step processes
    • 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
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/77Liquid phase processes
    • B01D53/79Injecting reactants
    • 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
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86Catalytic processes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2255/00Catalysts
    • B01D2255/20Metals or compounds thereof
    • B01D2255/207Transition metals
    • B01D2255/20707Titanium
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2255/00Catalysts
    • B01D2255/20Metals or compounds thereof
    • B01D2255/207Transition metals
    • B01D2255/20715Zirconium

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  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Catalysts (AREA)

Abstract

The invention discloses a kind of waste gas processing method.According to the waste gas processing method of the present invention, the method includes: catalytic step, is catalyzed by the waste gas after pretreatment filtration under the first catalyst, obtains the waste gas being activated;Oxidation step, aoxidizes the waste gas being activated under oxidant, and obtains oxidized waste gas;Photochemical catalytic oxidation step, carries out the waste gas not being activated oxidation after catalytic step and oxidation step catalysis oxidation under the second catalyst, obtains meeting the admixture of gas of discharge standard.According to the waste gas processing method of the present invention, save the energy, ensure safety;Improve the disposal ability to waste gas simultaneously.

Description

A kind of waste gas processing method
Technical field
The present invention relates to environmental technology field, particularly relate to a kind of waste gas processing method.
Background technology
Exhaust-gas treatment is primarily directed to industrial waste gas such as dust granules thing, flue gas flue dust, the abnormal flavour that industrial site produces Gas and toxic and harmful carry out the work administered.At present, in volatile organic matter (VOCs) field of environmental improvement, waste gas The method processed includes Production by Catalytic Combustion Process and photocatalytic oxidation.
Production by Catalytic Combustion Process be waste gas under the effect of catalyst, the combustion reaction carried out under certain temperature conditions.? In the method, waste gas needs the external world to provide the energy to carry out combustion reaction, wastes the energy, the temperature that combustion reaction simultaneously needs Being 300 DEG C, reaction temperature is higher, there is potential safety hazard;Photocatalytic oxidation is to be catalyst with quasiconductor, is excited by light and draws Oxidation-reduction reaction oxidation Decomposition waste gas.In the method, light excite the reaction caused for the higher waste gas of concentration at Manage limited in one's ability, it is impossible to meet and process the operating mode that exhaust gas concentration scope is wider.
Summary of the invention
In view of this, the purpose of the embodiment of the present invention is to provide a kind of waste gas processing method, to solve in prior art The waste energy, potential safety hazard and the technical problem limited in one's ability to exhaust-gas treatment existed.
According to an aspect of the present invention, it is provided that a kind of waste gas processing method, the method includes:
Catalytic step, is catalyzed waste gas under the first catalyst, obtains the waste gas being activated;
Oxidation step, aoxidizes the described waste gas being activated under oxidant, obtains oxidized waste gas;
Photochemical catalytic oxidation step, will not be activated the waste gas of oxidation at the second catalyst after catalytic step and oxidation step Under carry out catalysis oxidation, obtain meeting the admixture of gas of discharge standard.
Further, described first catalyst is solid catalyst.
Further, described solid catalyst is titanium oxide or zirconium oxide.
Further, described oxidant is liquid oxidizer.
Further, described liquid oxidizer is liquid oxygen.
Further, in described photochemical catalytic oxidation step, used up as ultraviolet light.
Further, described second catalyst is photocatalyst of titanium dioxide.
Further, also include between described catalytic step and described oxidation step:
Atomization steps, carries out atomization process by oxidant, obtains vaporific oxidant.
Further, also included before described catalytic step:
Pretreatment filtration step, carries out pretreatment filtration process by waste gas.
Further, also include between described oxidation step and described photochemical catalytic oxidation step:
Three-stage filtration step, carries out three grades of mistakes by the described waste gas not being activated oxidation after catalytic step and oxidation step Filter processes, and obtains the waste gas after three-stage filtration.
Compared with prior art, the invention have the benefit that
According to the waste gas processing method of the present invention, by by catalytic step, oxidation step and the knot of photochemical catalytic oxidation step Incompatible process waste gas, activates waste gas in catalytic step, is aoxidized by the waste gas of activation in oxidation step, oxidation Reaction the most just can be carried out, and in photochemical catalytic oxidation step, will not be activated oxidation after catalytic step and oxidation step Waste gas carry out catalysis oxidation, the concentration of waste gas is reduced;Through above-mentioned waste gas processing method, it is not necessary to extraneous offer energy Source, it is to avoid potential safety hazard, has saved the energy;Improve the utilization ratio of light simultaneously, thus improve photochemical catalytic oxidation step Disposal ability to waste gas so that photocatalysis oxidation reaction disclosure satisfy that and processes the operating mode that exhaust gas concentration scope is wider.
Accompanying drawing explanation
In order to be illustrated more clearly that the specific embodiment of the invention or technical scheme of the prior art, below will be to specifically In embodiment or description of the prior art, the required accompanying drawing used is briefly described, it should be apparent that, in describing below Accompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not paying creative work Put, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 shows the flow chart of a kind of waste gas processing method that the embodiment of the present invention 1 provided;
Fig. 2 shows the flow chart of a kind of waste gas processing method that the embodiment of the present invention 2 provided;
Fig. 3 shows the flow chart of a kind of waste gas processing method that the embodiment of the present invention 3 provided;
Fig. 4 shows the flow chart of a kind of waste gas processing method that the embodiment of the present invention 4 provided.
Reference
S1-catalytic step S2-oxidation step S3-catalytic oxidation stage
S4-atomization steps S5-pretreatment filtration step S6-three-stage filtration step
Detailed description of the invention
Detailed description of the invention is only the description of the invention, and does not constitute the restriction to present invention, below in conjunction with The present invention is further described and describes by accompanying drawing and specific embodiment.
According to an aspect of the invention, it is provided a kind of waste gas processing method, the method includes:
Catalytic step, is catalyzed waste gas under the first catalyst, obtains the waste gas being activated;
Oxidation step, aoxidizes the waste gas being activated under oxidant, and obtains oxidized waste gas;
Photochemical catalytic oxidation step, will not be activated the waste gas of oxidation at the second catalyst after catalytic step and oxidation step Under carry out catalysis oxidation, obtain meeting the admixture of gas of discharge standard.
The method of the exhaust-gas treatment according to the present invention, by by catalytic step, oxidation step and photochemical catalytic oxidation step In conjunction with processing waste gas, in catalytic step, waste gas is activated, in oxidation step, the waste gas of activation is aoxidized, oxygen Change reaction the most just can carry out, in photochemical catalytic oxidation step, oxygen will be activated after catalytic step and oxidation step The waste gas changed carries out catalysis oxidation, and the concentration of waste gas is reduced;Through above-mentioned waste gas processing method, it is not necessary to extraneous offer The energy, it is to avoid potential safety hazard, has saved the energy;Improve the utilization ratio of light simultaneously, thus improve photochemical catalytic oxidation step The rapid disposal ability to waste gas so that photocatalysis oxidation reaction disclosure satisfy that and processes the operating mode that exhaust gas concentration scope is wider.
Wherein, the waste gas that the method can process is by ammonia, trimethylamine, hydrogen sulfide, first sulfur hydrogen, methanthiol, methyl sulfide, second Acid butyl ester, ethyl acetate, methyl disulfide, Carbon bisulfide, styrene, sulfide, benzene,toluene,xylene, VOCs type organic etc. In one or more composition, applied range.
Wherein, waste gas through catalytic step and the process of oxidation step, 70~80% exhausted air quantity progressively decompose generation nothing The little molecule of evil, such as, the little molecule such as carbon dioxide and water.
There is multiple rows of high energy light wave producer in oxidation step, the high energy light wave of different-waveband launched by light wave producer, It is made to be internally formed High-energy photon lasing region, under the effect of light quantum, for be catalyzed after catalytic step and oxidation step After the photon of the organic molecule absorption specific wavelength in the waste gas of oxidation, molecular link is interrupted, in free state;
Second catalyst is photocatalyst of titanium dioxide, and photocatalyst of titanium dioxide is the catalysis participating in issuing raw reaction at light Agent, photocatalyst of titanium dioxide under light illumination, the enough energy of Electron absorption on its surface and depart from, now electron detachment Position just forms the hole of positively charged, and can dissociate the hydroxide ion by surrounding water molecules in hole, makes hydroxide ion become The hydroxyl radical free radical that activity is bigger;Hydroxyl radical free radical meets in the organic molecule in the waste gas of free state, will be by Organic substance Electronics in molecule is recaptured so that organic molecule decomposes, and decomposes and becomes the little molecules such as harmless water and carbon dioxide, so that The waste gas that must discharge meets discharge standard.
Preferably hydroxyl radical free radical is as the oxidant of the organic molecule in waste gas decomposition, and main cause is hydroxyl radical free radical There is compared with common oxidizer stronger oxidability, it is possible to sufficiently react with the organic molecule in waste gas;Table One is the oxidizing potential of multiple oxidant, and table one is as shown in the table:
Table one
Oxidant Reaction Oxidizing potential/V
OH OH+H++e-→H2O 3.06
O3 O3+2H++2e-→O2+H2O 2.07
H2O2 H2O2+2H++2e-→2H2O 1.77
HClO HClO+H++2e-→Cl-+H2O 1.63
Cl2 Cl2+2e-→2Cl- 1.36
Can draw from table one, hydroxyl radical free radical, compared with common oxidant, in there is oxidizing process, has higher Oxidizing potential, so hydroxyl radical free radical has stronger oxidisability.
According to a kind of embodiment of waste gas processing method of the present invention, the first catalyst is solid catalyst.
According to the waste gas processing method of the present invention, the stable chemical nature of the solid catalyst of selection, it is not easily susceptible to the external world The impact of environment, loses catalytic activation so that carrying out that can be lasting to the catalysis of waste gas.
According to a kind of embodiment of waste gas processing method of the present invention, solid catalyst is titanium oxide or zirconium oxide.
According to the waste gas processing method of the present invention, selected solid catalyst stable chemical nature, catalytic efficiency is high, energy Enough improve the catalytic step catalytic treatment ability to waste gas so that significantly reduce after the oxidized step of concentration of waste gas, Thus improve the disposal ability of photochemical catalytic oxidation step, meet and process the operating mode that exhaust gas concentration scope is wider.
According to a kind of embodiment of waste gas processing method of the present invention, oxidant is liquid oxidizer.
According to the waste gas processing method of the present invention, oxidant selects the oxidant of liquid so that oxidant is filled by atomization Put and be more likely formed vaporific oxidant, it is possible to be fully contacted with waste gas, react, improve the oxidation step process for waste gas Ability.
According to a kind of embodiment of waste gas processing method of the present invention, liquid oxidizer is liquid oxygen.
According to the waste gas processing method of the present invention, selection liquid oxygen is oxidant, it is therefore an objective to liquid oxygen is strong oxidant, The treating capacity to waste gas can be strengthened, improve the oxidation step disposal ability to waste gas.
According to a kind of embodiment of waste gas processing method of the present invention, in photochemical catalytic oxidation step, used up as ultraviolet Light.
According to the waste gas processing method of the present invention, owing to the light of the second catalyst rings scope in ultraviolet band, employing ultraviolet Light excites the second catalyst, it is possible to be quickly generated the hydroxyl radical free radical with strong oxidizing property, and the number of the hydroxyl radical free radical generated Measure more, so that the amount of waste gas oxidized in photocatalysis oxidation reaction increases, and then the waste gas being processed is more easy to Reach discharge standard.
According to a kind of embodiment of waste gas processing method of the present invention, the second catalyst is photocatalyst of titanium dioxide.
According to the waste gas processing method of the present invention, photocatalyst of titanium dioxide is under the exciting of ultraviolet light, it is possible to produce strong Catalytic decomposition function, thus improve the photocatalysis oxidation reaction disposal ability for waste gas, it is possible to meet and process exhaust gas concentration The operating mode that scope is wider.
According to a kind of embodiment of waste gas processing method of the present invention, also include between catalytic step and oxidation step:
Atomization steps, carries out atomization process by oxidant, obtains vaporific oxidant.
According to the waste gas processing method of the present invention, liquid oxidizer is atomized, obtains vaporific oxidant, make by atomization steps The molecule obtaining liquid oxidizer skips dissociating the stage of restriction oxidizing reaction rate;Vaporific oxidant particle diameter is less, it is possible to Waste gas is fully contacted in oxidation step, so that the amount of oxidized waste gas increases, and then makes the waste gas that is processed more Easily reach discharge standard.
Waste gas in catalytic step through catalysis, in oxidation step through vaporific oxidizing after, enter back into light and urge Change oxidation step, vaporific oxidant and the synergism of high energy light wave so that the utilization ratio of light wave improves more than 10 times, from And enhancing the photocatalytic oxidation disposal ability for waste gas so that photocatalytic oxidation disclosure satisfy that process exhaust gas concentration model Enclose wider operating mode.
According to a kind of embodiment of waste gas processing method of the present invention, also included before catalytic step:
Pretreatment filtration step, carries out filtration treatment by waste gas.
According to the waste gas processing method of the present invention, waste gas is carried out in pretreatment filtration step filtration treatment, filters useless Particulate matter in gas and stickum, prevent particulate matter and stickum from blocking the first catalyst duct, improve the first catalyst Activity, strengthen catalytic step for the disposal ability of waste gas.
According to a kind of embodiment of waste gas processing method of the present invention, between oxidation step and photochemical catalytic oxidation step also Including:
Three-stage filtration step, is carried out the waste gas not being activated oxidation after catalytic step and oxidation step at three-stage filtration Reason, obtains the waste gas after three-stage filtration.
According to the waste gas processing method of the present invention, waste gas, before carrying out photochemical catalytic oxidation, is carried out three-stage filtration by waste gas Process, particulate matter tiny in eliminating waste gas, prevent tiny particulate matter from blocking the second catalyst duct, improve the second catalyst Activity, strengthen exhaust treatment system exhaust-gas treatment ability.
In sum, according to the optional many factors of waste gas processing method of the present invention.Claim according to the present invention can To be combined into multiple embodiments, the technical scheme therefore gone out according to the claim combinations of the present invention is all in the protection of the present invention Within the scope of.Below in conjunction with specific embodiments exhaust treatment system of the present invention and waste gas processing method are carried out further Describe.
Several waste gas processing methods that following embodiment 1-4 provides for the embodiment of the present invention;Waste gas for embodiment 1-4 Processing method, waste gas be by ammonia, trimethylamine, hydrogen sulfide, first sulfur hydrogen, methanthiol, methyl sulfide, butyl acetate, ethyl acetate, two First two sulfur, Carbon bisulfide, styrene, one or more groups in sulfide, benzene,toluene,xylene or VOCs type organic etc. Become.
Embodiment 1
As it is shown in figure 1, wherein, the flow chart of a kind of waste gas processing method that Fig. 1 is provided by embodiment 1.
The waste gas processing method that the present embodiment provides, the method includes:
First carrying out catalytic step S1, waste gas is changed under zirconium oxide and is catalyzed, and obtains the waste gas being activated;Next carry out Oxidation step S2, oxidant is fully contacted with the waste gas being activated, reacts, and is gradually divided by the organic molecule in waste gas Solving, obtain oxidized waste gas, oxidized waste gas is mainly harmless carbon dioxide and water;Finally carry out photochemical catalytic oxidation step Rapid S3, the high energy light wave of different-waveband launched by the light wave producer in oxidation step S2 so that it is be internally formed High-energy photon Lasing region, under the effect of light quantum, be not activated after catalytic step S1 and oxidation step S2 in the waste gas of oxidation is organic After the photon of molecule absorption specific wavelength, molecular link is interrupted, in free state;Photocatalyst of titanium dioxide absorbs week under light illumination Enclosing moisture and produce hydroxyl radical free radical, hydroxyl radical free radical meets in the organic molecule in the waste gas of free state, will be by Organic substance Electronics in molecule is recaptured so that organic molecule decomposes, and decomposes and becomes the little molecules such as harmless water and carbon dioxide, so that The waste gas that must discharge meets discharge standard.
Embodiment 2
As in figure 2 it is shown, wherein, the flow chart of a kind of waste gas processing method that Fig. 2 is provided by embodiment 2.
The waste gas processing method that the present embodiment provides, the method includes:
First carrying out catalytic step S1, waste gas is changed under zirconium oxide and is catalyzed, and obtains the waste gas being activated;Next carry out Atomization steps S4, the liquid oxygen in oxidation step 2 delivered to atomizer by atomizer pump, and liquid oxygen is atomized by atomizer, makes liquid State oxygen forms less droplet, the most vaporific liquid oxygen;Subsequently carry out oxidation step S2, vaporific liquid oxygen be activated Waste gas is fully contacted, and reacts so that the organic molecule in waste gas gradually decomposes, and obtains oxidized waste gas, oxidized Waste gas be mainly harmless carbon dioxide and water;Finally carrying out photochemical catalytic oxidation step S3, the light wave in oxidation step S2 is sent out The high energy light wave of different-waveband launched by raw device so that it is be internally formed High-energy photon lasing region, under the effect of light quantum, and warp Divide after the photon of the organic molecule absorption specific wavelength not being activated after catalytic step S1 and oxidation step S2 in the waste gas of oxidation Sub-key is interrupted, in free state;Photocatalyst of titanium dioxide absorbs moisture around under light illumination and produces hydroxyl radical free radical, and hydroxyl is certainly Met in the organic molecule in the waste gas of free state by base, the electronics in organic molecule will be recaptured so that Organic substance Molecular breakdown, decomposes and becomes the little molecules such as harmless water and carbon dioxide, so that the waste gas of discharge meets discharge standard.
Embodiment 3
As it is shown on figure 3, wherein, the flow chart of a kind of waste gas processing method that Fig. 3 is provided by embodiment 3.
The waste gas processing method that the present embodiment provides, the method includes:
First carry out pretreatment filtration step S5, waste gas carried out filtration treatment, present in eliminating waste gas particulate matter and Stickum etc.;Next carries out catalytic step S1, changes and is catalyzed, be activated under the waste gas of filtration treatment is at titanium oxide Waste gas;Thirdly carrying out atomization steps S4, the liquid oxygen in oxidation step S2 is delivered to atomizer, atomizer by atomizer pump Liquid oxygen is atomized, makes liquid oxygen form less droplet, the most vaporific liquid oxygen;Then oxidation step S2 is carried out, vaporific Liquid oxygen is fully contacted with the waste gas being activated, and reacts so that the organic molecule in waste gas gradually decomposes, and obtains by oxygen The waste gas changed, oxidized waste gas is mainly harmless carbon dioxide and water;Finally carry out photochemical catalytic oxidation step S3, oxidation step The high energy light wave of different-waveband launched by light wave producer in rapid S2 so that it is be internally formed High-energy photon lasing region, at light Under the effect of quantum, after catalytic step S1 and oxidation step S2, it is not activated the organic molecule in the waste gas of oxidation absorbs specific After the photon of wavelength, molecular link is interrupted, in free state;Photocatalyst of titanium dioxide absorbs moisture around under light illumination and produces hydroxyl Base free radical, hydroxyl radical free radical meets in the organic molecule in the waste gas of free state, will be by the electronics in organic molecule Recapture so that organic molecule decomposes, decompose and become the little molecules such as harmless water and carbon dioxide, so that the waste gas of discharge Meet discharge standard.
Embodiment 4
As shown in Figure 4, wherein, the flow chart of a kind of waste gas processing method that Fig. 4 is provided by embodiment 4.
The waste gas processing method that the present embodiment provides, the method includes:
First carry out pretreatment filtration step S5, waste gas carried out filtration treatment, present in eliminating waste gas particulate matter and Stickum etc.;Next carries out catalytic step S1, changes and is catalyzed, be activated under the waste gas of filtration treatment is at titanium oxide Waste gas;Thirdly carrying out atomization steps S4, the liquid oxygen in oxidation step 2 is delivered to atomizer, atomizer by atomizer pump Liquid oxygen is atomized, makes liquid oxygen form less droplet, the most vaporific liquid oxygen;Then oxidation step S2 is carried out, vaporific Liquid oxygen is fully contacted with the waste gas being activated, and reacts so that the organic molecule in waste gas gradually decomposes, and obtains by oxygen The waste gas changed, oxidized waste gas is mainly harmless carbon dioxide and water;Subsequently carry out three-stage filtration step S6, will be through urging The waste gas not being activated oxidation after changing step S1 and oxidation step S2 carries out three-stage filtration process, granule present in eliminating waste gas Thing and stickum etc., obtain the waste gas after three-stage filtration;Finally carry out photochemical catalytic oxidation step S3, in oxidation step S2 The high energy light wave of different-waveband launched by light wave producer so that it is be internally formed High-energy photon lasing region, at the work of light quantum Under with, after catalytic step S1 and oxidation step S2, it is not activated the organic molecule in the waste gas of oxidation absorbs the light of specific wavelength After son, molecular link is interrupted, in free state;Photocatalyst of titanium dioxide absorbs moisture around under light illumination and produces hydroxyl radical free radical, Hydroxyl radical free radical meets in the organic molecule in the waste gas of free state, will be recaptured by the electronics in organic molecule so that Organic molecule decomposes, and decomposes and becomes the little molecules such as harmless water and carbon dioxide, so that the waste gas of discharge meets discharge Standard.
Last it is noted that various embodiments above is only in order to illustrate technical scheme, it is not intended to limit;To the greatest extent The present invention has been described in detail by pipe with reference to foregoing embodiments, it will be understood by those within the art that: it depends on So the technical scheme described in foregoing embodiments can be modified, or the most some or all of technical characteristic is entered Row equivalent;And these amendments or replacement, do not make the essence of appropriate technical solution depart from various embodiments of the present invention technology The scope of scheme.

Claims (10)

1. a waste gas processing method, it is characterised in that the method includes:
Catalytic step, is catalyzed waste gas under the first catalyst, obtains the waste gas being activated;
Oxidation step, aoxidizes the described waste gas being activated under oxidant, obtains oxidized waste gas;
Photochemical catalytic oxidation step, enters the waste gas not being activated oxidation after catalytic step and oxidation step under the second catalyst Row catalysis oxidation, obtains meeting the admixture of gas of discharge standard.
Waste gas processing method the most according to claim 1, it is characterised in that described first catalyst is solid catalyst.
Waste gas processing method the most according to claim 2, it is characterised in that described solid catalyst is titanium oxide or oxidation Zirconium.
Waste gas processing method the most according to claim 1, it is characterised in that described oxidant is liquid oxidizer.
Waste gas processing method the most according to claim 4, it is characterised in that described liquid oxidizer is liquid oxygen.
Waste gas processing method the most according to claim 1, it is characterised in that in described photochemical catalytic oxidation step, used Light is ultraviolet light.
Waste gas processing method the most according to claim 6, it is characterised in that described second catalyst is that titanium-dioxide photo touches Matchmaker.
Waste gas processing method the most according to claim 5, it is characterised in that at described catalytic step and described oxidation step Between also include:
Atomization steps, carries out atomization process by oxidant, obtains vaporific oxidant.
Waste gas processing method the most according to claim 1, it is characterised in that also included before described catalytic step:
Pretreatment filtration step, carries out filtration treatment by waste gas.
Waste gas processing method the most according to claim 1, it is characterised in that in described oxidation step and described photocatalysis Also include between oxidation step:
Three-stage filtration step, is carried out the described waste gas not being activated oxidation after catalytic step and oxidation step at three-stage filtration Reason, obtains the waste gas after three-stage filtration.
CN201610616720.XA 2016-07-29 2016-07-29 A kind of waste gas processing method Pending CN106178872A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114748967A (en) * 2022-05-12 2022-07-15 深圳市智盾环保科技有限公司 Organic waste gas high-efficiency photolysis equipment and organic waste gas photolysis treatment method

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CN103495336A (en) * 2013-09-27 2014-01-08 深圳市科德环保科技有限公司 High-concentration odor pollutant waste gas treatment equipment
CN104329741A (en) * 2014-10-25 2015-02-04 哈尔滨金大环境工程有限公司 Indoor photocatalysis air purifier and purification method
CN105536458A (en) * 2016-01-22 2016-05-04 浙江工业大学 Oxidizing agent and ultraviolet light cooperating organic waste gas purification device and processing method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001062253A (en) * 1999-06-24 2001-03-13 Fujitsu Ltd Purifying device
CN103495336A (en) * 2013-09-27 2014-01-08 深圳市科德环保科技有限公司 High-concentration odor pollutant waste gas treatment equipment
CN104329741A (en) * 2014-10-25 2015-02-04 哈尔滨金大环境工程有限公司 Indoor photocatalysis air purifier and purification method
CN105536458A (en) * 2016-01-22 2016-05-04 浙江工业大学 Oxidizing agent and ultraviolet light cooperating organic waste gas purification device and processing method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114748967A (en) * 2022-05-12 2022-07-15 深圳市智盾环保科技有限公司 Organic waste gas high-efficiency photolysis equipment and organic waste gas photolysis treatment method

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Application publication date: 20161207