CN105854593A - Exhaust-gas treatment method using photocatalytic oxidation - Google Patents
Exhaust-gas treatment method using photocatalytic oxidation Download PDFInfo
- Publication number
- CN105854593A CN105854593A CN201610295079.4A CN201610295079A CN105854593A CN 105854593 A CN105854593 A CN 105854593A CN 201610295079 A CN201610295079 A CN 201610295079A CN 105854593 A CN105854593 A CN 105854593A
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- China
- Prior art keywords
- waste gas
- reaction chamber
- exhaust gas
- ozone
- exhaust
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/20—Metals or compounds thereof
- B01D2255/209—Other metals
- B01D2255/2098—Antimony
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/80—Type of catalytic reaction
- B01D2255/802—Photocatalytic
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Catalysts (AREA)
Abstract
The invention discloses an exhaust-gas treatment method using photocatalytic oxidation and relates to the technical field of environmental pollution control. The exhaust-gas treatment method includes the steps that particulate impurities in exhaust gas are removed via a high-efficiency particulate air filter; after the particulate impurities are removed from the exhaust gas, the exhaust gas passes through a heat exchanger at the temperature of 90 DEG C to 120 DEG C; the exhaust gas passing through the heat exchanger enters a photocatalytic reaction chamber, ultraviolet light is used in the photocatalytic reaction chamber, a catalyzer is a load-type BiOI catalyzer, and the time of the photocatalytic reaction chamber is controlled between 1 to 2 seconds; the exhaust gas passing through the photocatalytic reaction chamber passes through an ozone and photocatalytic compound reaction chamber for 5 to 7 seconds and is purified through synergistic effect of photocatalytic oxidation and catalytic ozonation; after purification, the purified exhaust gas passes through a reduction reaction chamber at the temperature of 150 DEG C to 180 DEG C. The exhaust-gas treatment method has the advantages that the exhaust gas and the ozone can be completely eliminated, and no residual ozone is remained to cause secondary pollution.
Description
Technical field
The present invention relates to technical field of environment pollution control, be specifically related to the method that waste gas is administered in photochemical catalytic oxidation.
Background technology
Air pollution damage human health, affects plant growing, brings to people's life and has a strong impact on, and atmospheric pollution has become the major issue faced in whole world life of urban resident.Gas pollutant mainly has a large amount of acid contaminants such as sulfur dioxide and nitrogen oxides of discharge in volatile organic matter, and fossil fuel combustion process.Atmospheric pollution produces serious pollution to environment, makes global problem of environmental pollution, and the discharge therefore controlling gas pollutant is very urgent.The purification method of foul gas has a lot, such as masking method, air oxidation process, absorption process, absorption method or chemical absorption method, absorption-absorption method etc..
Current National various places the most constantly step up to formulate waste gas discharge industry standard, for adapting to stricter energy-conserving and environment-protective requirement, recent year researchs and develops some novel environment friendly Treatment process, but still there is many defects, and as there is residual ozone secondary pollution, potential risk is high, energy consumption is high.
Summary of the invention
Present invention aims to defect and the deficiency of prior art, a kind of method that waste gas is administered in photochemical catalytic oxidation reasonable in design is provided, it purifies waste gas by the synergism of ultraviolet catalytic oxidation and catalytic ozonation, waste gas and ozone are completely eliminated, the ozone not having remnants causes secondary pollution, energy consumption is low, and efficiency is high.
In order to solve the problem existing for background technology, the technical solution used in the present invention is: it comprises the steps: that waste gas removes particulate contaminant through high efficiency particulate air filter；The described waste gas removing particulate contaminant is through over-heat-exchanger, and temperature controls at 90-120 DEG C；The described waste gas through over-heat-exchanger enters in light-catalyzed reaction room, and light-catalyzed reaction room uses ultraviolet light, and catalyst is support type BiOI catalyst, and the time of light-catalyzed reaction room controls at 1-2s；Described waste gas after light-catalyzed reaction room is again through ozone and photocatalysis compound reaction room, and the time controls at 5-7s, purifies waste gas by the synergism of ultraviolet catalytic oxidation and catalytic ozonation；Waste gas after described purification is through reduction reaction chamber, and temperature controls at 150-180 DEG C, and waste gas and ozone are completely eliminated, and purifies as cleaning gas.
Further, described support type BiOI catalyst refers to BiOI catalyst loads to the activated alumina of meso-hole structure or molecular sieve supported surface.
Present invention have the beneficial effect that it purifies waste gas by the synergism of ultraviolet catalytic oxidation and catalytic ozonation, waste gas and ozone are completely eliminated, the ozone not having remnants causes secondary pollution, and energy consumption is low, and efficiency is high.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the present invention is further illustrated.
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with detailed description of the invention, the present invention is further elaborated.Should be appreciated that detailed description of the invention described herein, only in order to explain the present invention, is not intended to limit the present invention.
This detailed description of the invention adopts the following technical scheme that it comprises the steps: that waste gas removes particulate contaminant through high efficiency particulate air filter；The described waste gas removing particulate contaminant is through over-heat-exchanger, and temperature controls at 110 DEG C；The described waste gas through over-heat-exchanger enters in light-catalyzed reaction room, and light-catalyzed reaction room uses ultraviolet light, and catalyst is support type BiOI catalyst, and the time of light-catalyzed reaction room controls at 1s；Described waste gas after light-catalyzed reaction room is again through ozone and photocatalysis compound reaction room, and the time controls at 5s, purifies waste gas by the synergism of ultraviolet catalytic oxidation and catalytic ozonation；Waste gas after described purification is through reduction reaction chamber, and temperature controls at 160 DEG C, and waste gas and ozone are completely eliminated, and purifies as cleaning gas.
Further, described support type BiOI catalyst refers to BiOI catalyst loads to the activated alumina of meso-hole structure or molecular sieve supported surface.
This detailed description of the invention purifies waste gas by the synergism of ultraviolet catalytic oxidation and catalytic ozonation, waste gas and ozone is completely eliminated, and the ozone not having remnants causes secondary pollution, and energy consumption is low, and efficiency is high.
The above, only in order to technical scheme to be described and unrestricted, other amendment or equivalent that technical scheme is made by those of ordinary skill in the art, without departing from the spirit and scope of technical solution of the present invention, all should contain in the middle of scope of the presently claimed invention.
Claims (2)
1. the method that waste gas is administered in photochemical catalytic oxidation, it is characterised in that comprise the steps: that waste gas removes particulate contaminant through high efficiency particulate air filter；The described waste gas removing particulate contaminant is through over-heat-exchanger, and temperature controls at 90-120 DEG C；The described waste gas through over-heat-exchanger enters in light-catalyzed reaction room, and light-catalyzed reaction room uses ultraviolet light, and catalyst is support type BiOI catalyst, and the time of light-catalyzed reaction room controls at 1-2s；Described waste gas after light-catalyzed reaction room is again through ozone and photocatalysis compound reaction room, and the time controls at 5-7s, purifies waste gas by the synergism of ultraviolet catalytic oxidation and catalytic ozonation；Waste gas after described purification is through reduction reaction chamber, and temperature controls at 150-180 DEG C, and waste gas and ozone are completely eliminated, and purifies as cleaning gas.
The method of waste gas is administered in photochemical catalytic oxidation the most according to claim 1, it is characterised in that described support type BiOI catalyst refers to BiOI catalyst loads to the activated alumina of meso-hole structure or molecular sieve supported surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610295079.4A CN105854593A (en) | 2016-05-06 | 2016-05-06 | Exhaust-gas treatment method using photocatalytic oxidation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610295079.4A CN105854593A (en) | 2016-05-06 | 2016-05-06 | Exhaust-gas treatment method using photocatalytic oxidation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105854593A true CN105854593A (en) | 2016-08-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610295079.4A Pending CN105854593A (en) | 2016-05-06 | 2016-05-06 | Exhaust-gas treatment method using photocatalytic oxidation |
Country Status (1)
| Country | Link |
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| CN (1) | CN105854593A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111265988A (en) * | 2020-03-05 | 2020-06-12 | 深圳市晶灿生态环境科技有限公司 | Chicken essence factory waste gas treatment process and waste gas treatment system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101182086A (en) * | 2007-10-26 | 2008-05-21 | 上海大学 | Highly effective sewage combined treating method and device |
| CN101530732A (en) * | 2009-02-27 | 2009-09-16 | 中国科学院广州地球化学研究所 | Method and device for treating organic waste gas by combining photocatalysis and microorganisms and application thereof |
| CN102512949A (en) * | 2011-12-22 | 2012-06-27 | 中山大学 | Method for treating exhaust gases by utilizing wet polyphase visible light catalytic oxidation |
| CN103537179A (en) * | 2013-10-25 | 2014-01-29 | 临安清云环保设备有限公司 | Method for removing exhaust gas through photocatalytic ozonation |
| CN104857824A (en) * | 2015-05-27 | 2015-08-26 | 中山大学 | Waste gas processing method and device collaborating vacuum ultraviolet light catalysis and ozone catalytic oxidation |
-
2016
- 2016-05-06 CN CN201610295079.4A patent/CN105854593A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101182086A (en) * | 2007-10-26 | 2008-05-21 | 上海大学 | Highly effective sewage combined treating method and device |
| CN101530732A (en) * | 2009-02-27 | 2009-09-16 | 中国科学院广州地球化学研究所 | Method and device for treating organic waste gas by combining photocatalysis and microorganisms and application thereof |
| CN102512949A (en) * | 2011-12-22 | 2012-06-27 | 中山大学 | Method for treating exhaust gases by utilizing wet polyphase visible light catalytic oxidation |
| CN103537179A (en) * | 2013-10-25 | 2014-01-29 | 临安清云环保设备有限公司 | Method for removing exhaust gas through photocatalytic ozonation |
| CN104857824A (en) * | 2015-05-27 | 2015-08-26 | 中山大学 | Waste gas processing method and device collaborating vacuum ultraviolet light catalysis and ozone catalytic oxidation |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111265988A (en) * | 2020-03-05 | 2020-06-12 | 深圳市晶灿生态环境科技有限公司 | Chicken essence factory waste gas treatment process and waste gas treatment system |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160817 |
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| RJ01 | Rejection of invention patent application after publication |