CN109692561A - A kind of device and method of catalytic oxidation purification modified pitch exhaust gas - Google Patents
A kind of device and method of catalytic oxidation purification modified pitch exhaust gas Download PDFInfo
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- CN109692561A CN109692561A CN201710996392.5A CN201710996392A CN109692561A CN 109692561 A CN109692561 A CN 109692561A CN 201710996392 A CN201710996392 A CN 201710996392A CN 109692561 A CN109692561 A CN 109692561A
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- exhaust gas
- oxidation
- modified pitch
- catalytic
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- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 52
- 230000003647 oxidation Effects 0.000 title claims abstract description 51
- 230000003197 catalytic effect Effects 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000000746 purification Methods 0.000 title claims abstract description 16
- 230000001590 oxidative effect Effects 0.000 claims abstract description 31
- 239000007800 oxidant agent Substances 0.000 claims abstract description 28
- 239000003463 adsorbent Substances 0.000 claims abstract description 18
- 239000013618 particulate matter Substances 0.000 claims abstract description 15
- 239000005416 organic matter Substances 0.000 claims abstract description 13
- 238000000889 atomisation Methods 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000003054 catalyst Substances 0.000 claims abstract description 5
- 239000007789 gas Substances 0.000 claims description 69
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 11
- 239000000443 aerosol Substances 0.000 claims description 9
- 238000010521 absorption reaction Methods 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 238000009835 boiling Methods 0.000 claims description 3
- 238000010410 dusting Methods 0.000 claims description 3
- 150000002894 organic compounds Chemical class 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 2
- 238000010926 purge Methods 0.000 claims description 2
- 230000015556 catabolic process Effects 0.000 claims 1
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 230000003749 cleanliness Effects 0.000 claims 1
- 238000006731 degradation reaction Methods 0.000 claims 1
- 239000003595 mist Substances 0.000 claims 1
- 238000001179 sorption measurement Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 9
- 239000000428 dust Substances 0.000 abstract description 4
- 238000006555 catalytic reaction Methods 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 238000007539 photo-oxidation reaction Methods 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000006303 photolysis reaction Methods 0.000 description 3
- 230000015843 photosynthesis, light reaction Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000001877 deodorizing effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005686 electrostatic field Effects 0.000 description 1
- DNJIEGIFACGWOD-UHFFFAOYSA-N ethanethiol Chemical compound CCS DNJIEGIFACGWOD-UHFFFAOYSA-N 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 150000002391 heterocyclic compounds Chemical class 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 125000005575 polycyclic aromatic hydrocarbon group Chemical group 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/75—Multi-step processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/76—Gas phase processes, e.g. by using aerosols
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8668—Removing organic compounds not provided for in B01D53/8603 - B01D53/8665
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Dispersion Chemistry (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a kind of device and methods of catalytic oxidation purification modified pitch exhaust gas, and device mainly includes atomising device, adsorbent equipment, oxidant flow mixing device, oxidation unit, catalytic unit, blower.Modified pitch exhaust gas is first by atomising device atomization process, particulate matter is removed by adsorbent equipment again, then through oxidant flow mixing device, it is sufficiently mixed oxidant with exhaust gas, and oxidation reaction occurs in oxidation unit, it is finally delivered to catalytic unit, so that oxidant and water are under the action of catalyst, deep oxidation is carried out to organic matter, clean gas is via blower outlet.Modified pitch exhaust gas endoparticle object after present invention atomization is easier to be captured, and dust removing effects are obvious；After catalytic treatment, oxidation susceptibility greatly improves oxidant；The trapping of particulate matter extends the service life of catalytic unit, while secondary pollution yield is greatly reduced；So that investment cost and use cost reduce；Meet increasingly strict discharge standard and regulation.
Description
Technical field
The present invention relates to environmental project waste gas pollution control and treatment field, in particular to a kind of catalytic oxidation purifies modified pitch exhaust gas
Device and method.
Background technique
In recent years, with the various rapid industrial developments in China, the usage amount of modified asphalt material is also substantially increased, modified drip
The improvement of green exhaust gas is also gradually taken seriously.Modified pitch exhaust gas mainly includes tarvia, glance coal, tar liquid, gaseous state
The dust and small-molecule substance generated in the offensive gases such as tar, aromatic hydrocarbons and heterocyclic compound and powder adding procedure.It is modified
Pitch exhaust gas has smell weight, the feature of polycyclic aromatic hydrocarbon service life length.
Currently, the main administering method of modified pitch exhaust gas has: spray+ultraviolet photolysis, high-pressure electrostatic trapping+photooxidation are urged
Change.
Spray+ultraviolet photolysis: the particle collection in modified pitch exhaust gas is got off using the method for spray first, then is adopted
With ultraviolet photolysis by odorant, the voc_s removal in modified pitch exhaust gas, clean-up effect is general, is able to satisfy substantially big
Gas pollutant comprehensive discharge standard (GB16297-1996), emission standard for odor pollutants (GB14554-93), but spray process
It needs to consume a large amount of waste water, generates secondary pollution.
High-pressure electrostatic trapping+photooxidation catalysis: modified pitch exhaust gas is delivered to high-voltage electrostatic field, utilizes the strong absorption of electrostatic
Effect is delivered to photooxidation catalysis system by the particle collection in exhaust gas, then by the exhaust gas for eliminating particulate matter, and modified pitch is useless
Gas removal rate improves, the secondary pollution of water pollution-free, but the pollution such as voc, non-methane total hydrocarbons, stench can be generated under ultraviolet light
The intermediate products such as substance, and high-pressure electrostatic and the energy charge of photooxidation catalysis are big.As national emission standard and local regulation are wanted
The continuous improvement asked, there is an urgent need to new technologies to be mutually suitable for the environmental quality standards of the new period.
Summary of the invention
Mutually it is not suitable for solve existing modified pitch waste gas purification technology with new period environmental quality standards and regulation, is net
Change the halfway problem of effect, it is proposed that a kind of device and method of catalytic oxidation purification modified pitch exhaust gas is suitable for existing
There is the improvement of modified pitch exhaust gas and promote, dust removing effects are obvious, substantially reduce non-methane total hydrocarbons, and deodorizing effect is obvious
It improves.
To realize the above purposes, the technical scheme adopted is as follows:
A kind of device of catalytic oxidation purification modified pitch exhaust gas, mainly includes atomising device, adsorbent equipment, oxidant mixed flow
Device, oxidation unit, catalytic unit, blower.The atomising device is connected to the adsorbent equipment, the adsorbent equipment
It is connected to the oxidant flow mixing device, the oxidant flow mixing device is connected to the oxidation unit, the oxygen
Makeup sets and is connected to the catalytic unit, the catalytic unit is connected to the blower.
Preferably, the atomising device, adsorbent equipment can be merged into atomization adsorbent equipment.
Preferably, the oxidation unit, catalytic unit can be merged into catalytic oxidizing equipment.
A kind of method of catalytic oxidation purification modified pitch exhaust gas, implementation are as follows:
(1) modified pitch exhaust gas is delivered to atomising device, high boiling point organic compound moment is changed by gaseous state in modified pitch exhaust gas
For aerosol；
(2) exhaust gas after atomization is delivered to adsorbent equipment, the particulate matter and aerosol in modified pitch exhaust gas are adsorbed into half
Solid-state collects；
(3) particulate matter will be eliminated, non-dusting modified pitch exhaust gas is delivered to oxidation unit via flow mixing device, makes small tolerance
Organic matter a part drop after oxidant and atm number exhaust gas are sufficiently mixed, under the oxidation of oxidant, in exhaust gas
Xie Weishui and CO2, a part generate " intermediate state " compound；
(4) undegraded complete modified pitch exhaust gas is delivered to catalytic unit, oxidant and water under the action of catalyst, generate
Largely " hydroxyl " carries out deep oxidation to organic matter using " hydroxyl "；
(5) clean gas after deep oxidation is via qualified discharge after blower.
Preferably, in above-mentioned steps (1) atomising device, the water capacity of exhaust gas increases, and is conducive to particulate matter in subsequent exhaust gas
And the absorption of aerosol.
Preferably, in above-mentioned steps (2) adsorbent equipment, particulate matter, the aerosol in exhaust gas is adsorbed, exhaust gas is reached
To the purity requirements of subsequent treatment process, extend the continuing purge time of aftertreatment device.
Preferably, in above-mentioned steps (3) oxidation unit, the oxidant of small tolerance and the exhaust gas of atm number are sufficiently mixed
With react, pre-generate a part of insufficient oxidation, unstable intermediate state substance, carry out standard for further progress advanced oxidation
It is standby.
Preferably, in above-mentioned steps (4) catalytic unit, the effect of the oxidant and vapor of abundant residues in catalytic unit
Under can be rapidly converted into " hydroxyl ", the quick oxidation relationship between " hydroxyl " and organic matter is made full use of, so that organic matter and preceding
Intermediate state organic matter is generated in section apparatus obtains advanced oxidation and depth mineralising.
Technical principle of the invention is: first reaching the flue gas in modified pitch exhaust gas except particle via atomization and absorption
Effect reaches the purity requirements of subsequent treatment process；It then under the effect of the catalyst using oxidant and vapor, can
" hydroxyl " principle of more strong oxidizing property is generated, so that modified pitch exhaust gas obtains deep oxidation, clean gas passes through via blower
Chimney outlet.
The beneficial effects of the present invention are:
One, dust removing effects are obvious: the modified pitch exhaust gas endoparticle object after atomization is easier to be captured, and particulate matter removal efficiencies mention
Height, the safety is improved, while having input necessary vapor in catalytic process；
Two, modified pitch exhaust purification efficiency is high: after catalytic treatment, oxidation susceptibility greatly improves oxidant, organic matter mine
Change degree significantly improves；
Three, at low cost: the trapping of particulate matter improves the Acceptable life and the time limit of device, extends the use of catalytic unit
Service life, while secondary pollution yield is greatly reduced；So that investment cost and use cost reduce；
Four, meet increasingly strict discharge standard and regulation.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the invention.
In Fig. 1,1- atomising device, 11- modified pitch exhaust gas entrance, 2- adsorbent equipment, 21- is containing solid discard solution discharge port, 3-
Oxidant flow mixing device, 4- oxidation unit, 5- catalytic unit, 6- blower, 7- chimney.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.
The present invention includes atomising device 1, modified pitch exhaust gas entrance 11, adsorbent equipment 2, the row of liquid containing solid waste as shown in Figure 1:
Put mouth 21, oxidant flow mixing device 3, oxidation unit 4, catalytic unit 5, blower 6, chimney 7；Modified pitch exhaust gas is from modified pitch
Exhaust gas entrance 11 enter atomising device 1, under the action of atomising device 1, in modified pitch exhaust gas high boiling point organic compound moment by
Gaseous state is changed into aerosol；It is then sent to adsorbent equipment 2, the particulate matter and aerosol in modified pitch exhaust gas are adsorbed into half
Solid-state containing solid discard solution discharge port 21 by collecting；Particulate matter, non-dusting modified pitch exhaust gas will be eliminated via oxidant
Flow mixing device 3 is delivered to oxidation unit 4, is sufficiently mixed small tolerance oxidant and atm number exhaust gas and oxidation occurs instead
It answers；The exhaust gas for being mixed with oxidant is sent into catalytic unit 5 again, oxidant and water under the action of catalyst, generate a large amount of " hydroxyls
Base " carries out deep oxidation to organic matter using " hydroxyl "；Clean gas passes through 7 outlet of chimney via blower 6.
Preferably, atomising device 1 and adsorbent equipment 2 can be merged into one to be atomized the dress of the integrated treatment based on adsorbing
It sets.
Preferably, oxidation unit 4 and catalytic unit 5 can be merged into an integrated treatment dress based on oxidation catalysis
It sets.
Above is only to briefly describe to the embodiment of the present invention, is not limitation of the present invention, can have
Many deformations, the deformation that any same technical professional carries out according to the present invention are thought to belong to protection model of the invention
It encloses.
Claims (8)
1. a kind of device of catalytic oxidation purification modified pitch exhaust gas, which is characterized in that main device includes atomising device, inhales
Adsorption device, oxidant flow mixing device, oxidation unit, catalytic unit, blower；The atomising device is connected to the absorption dress
It sets, the adsorbent equipment is connected to the oxidant flow mixing device, and the oxidant flow mixing device is connected to described
Oxidation unit, the oxidation unit are connected to the catalytic unit, and the catalytic unit is connected to the blower.
2. the device of catalytic oxidation purification modified pitch exhaust gas according to claim 1, which is characterized in that the mist
Makeup is set, adsorbent equipment can be merged into atomization adsorbent equipment.
3. the device of catalytic oxidation purification modified pitch exhaust gas according to claim 1, which is characterized in that the oxygen
Makeup is set, catalytic unit can be merged into catalytic oxidizing equipment.
4. a kind of method of catalytic oxidation purification modified pitch exhaust gas, which is characterized in that its implementation includes the following steps:
Modified pitch exhaust gas is delivered to atomising device, high boiling point organic compound moment is changed into gas by gaseous state in modified pitch exhaust gas
Colloidal sol；
Exhaust gas after atomization is delivered to adsorbent equipment, the particulate matter and aerosol in modified pitch exhaust gas are adsorbed into semisolid
It collects；
Particulate matter will be eliminated, non-dusting modified pitch exhaust gas is delivered to oxidation unit via flow mixing device, makes small tolerance oxygen
Organic matter a part degradation after agent and atm number exhaust gas are sufficiently mixed, under the oxidation of oxidant, in exhaust gas
For water and CO2, a part generates " intermediate state " compound；
Undegraded complete modified pitch exhaust gas is delivered to catalytic unit, oxidant and water under the action of catalyst, generate big
It measures " hydroxyl ", deep oxidation is carried out to organic matter using " hydroxyl "；
(5) clean gas after deep oxidation is via qualified discharge after blower.
5. the method for catalytic oxidation purification modified pitch exhaust gas according to claim 4, which is characterized in that above-mentioned steps
(1) in atomising device, the water capacity of exhaust gas increases, and is conducive to the absorption of particulate matter and aerosol in subsequent exhaust gas.
6. the method for catalytic oxidation purification modified pitch exhaust gas according to claim 4, which is characterized in that above-mentioned steps
(2) in adsorbent equipment, particulate matter, the aerosol in exhaust gas is adsorbed, exhaust gas is made to reach the cleanliness of subsequent treatment process
It is required that extending the continuing purge time of aftertreatment device.
7. the method for catalytic oxidation purification modified pitch exhaust gas according to claim 4, which is characterized in that above-mentioned steps
(3) in oxidation unit, the oxidant of small tolerance is sufficiently mixed and is reacted with the exhaust gas of atm number, pre-generates a part not
Fully oxidized, unstable intermediate state substance is ready for further progress advanced oxidation.
8. the method for catalytic oxidation purification modified pitch exhaust gas according to claim 4, which is characterized in that above-mentioned steps
(4) in catalytic unit, the oxidant and vapor of abundant residues can be rapidly converted into " hydroxyl " under the action of catalytic unit, fill
Divide the quick oxidation relationship utilized between " hydroxyl " and organic matter, so that generating intermediate state organic matter in organic matter and front end devices
Obtain advanced oxidation and depth mineralising.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710996392.5A CN109692561A (en) | 2017-10-24 | 2017-10-24 | A kind of device and method of catalytic oxidation purification modified pitch exhaust gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710996392.5A CN109692561A (en) | 2017-10-24 | 2017-10-24 | A kind of device and method of catalytic oxidation purification modified pitch exhaust gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109692561A true CN109692561A (en) | 2019-04-30 |
Family
ID=66226879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710996392.5A Pending CN109692561A (en) | 2017-10-24 | 2017-10-24 | A kind of device and method of catalytic oxidation purification modified pitch exhaust gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109692561A (en) |
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| CN207413121U (en) * | 2017-10-24 | 2018-05-29 | 杭州中兵环保股份有限公司 | A kind of device of catalytic oxidation purification modified pitch exhaust gas |
| CN109692539A (en) * | 2017-10-24 | 2019-04-30 | 杭州中兵环保股份有限公司 | A kind of device and method of catalytic oxidation purification rubber exhaust gas |
-
2017
- 2017-10-24 CN CN201710996392.5A patent/CN109692561A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202078854U (en) * | 2011-04-02 | 2011-12-21 | 王娜 | Regenerative efficient photocatalysis deodorization device |
| CN102861504A (en) * | 2012-09-12 | 2013-01-09 | 广东森洋环境保护工程设备有限公司 | Device for treating organic waste gas by applying photochemical technology |
| CN204429036U (en) * | 2015-01-15 | 2015-07-01 | 宁波龙洋塑化科技有限公司 | The fume extractor in operation extruded by a kind of modified plastics |
| CN204637950U (en) * | 2015-05-28 | 2015-09-16 | 杭州中兵环保股份有限公司 | A kind of deodorizing purifier of feed manufacturing waste gas |
| CN105999962A (en) * | 2016-07-12 | 2016-10-12 | 包禾欣 | Asphalt flue gas purification treatment equipment |
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| CN207413121U (en) * | 2017-10-24 | 2018-05-29 | 杭州中兵环保股份有限公司 | A kind of device of catalytic oxidation purification modified pitch exhaust gas |
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