CN102772987B - Waste gas oxidation treatment system - Google Patents
Waste gas oxidation treatment system Download PDFInfo
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- CN102772987B CN102772987B CN201210257984.2A CN201210257984A CN102772987B CN 102772987 B CN102772987 B CN 102772987B CN 201210257984 A CN201210257984 A CN 201210257984A CN 102772987 B CN102772987 B CN 102772987B
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- layer
- tower
- oxidation
- outlet
- treatment system
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- 230000003647 oxidation Effects 0.000 title claims abstract description 57
- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 57
- 239000002912 waste gas Substances 0.000 title claims abstract description 14
- CBENFWSGALASAD-UHFFFAOYSA-N ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract description 42
- 239000007921 spray Substances 0.000 claims abstract description 31
- 238000005273 aeration Methods 0.000 claims abstract description 24
- 230000003197 catalytic Effects 0.000 claims abstract description 21
- 230000005591 charge neutralization Effects 0.000 claims abstract description 17
- 230000001264 neutralization Effects 0.000 claims abstract description 17
- 238000006386 neutralization reaction Methods 0.000 claims abstract description 17
- 239000003054 catalyst Substances 0.000 claims abstract description 11
- 230000001590 oxidative Effects 0.000 claims description 21
- 239000007789 gas Substances 0.000 claims description 19
- 238000005507 spraying Methods 0.000 claims description 14
- 238000005070 sampling Methods 0.000 claims description 7
- 238000004891 communication Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 229910044991 metal oxide Inorganic materials 0.000 claims description 2
- 150000004706 metal oxides Chemical class 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 239000010970 precious metal Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 11
- 238000006243 chemical reaction Methods 0.000 description 9
- MHAJPDPJQMAIIY-UHFFFAOYSA-N hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 238000006555 catalytic reaction Methods 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- MYMOFIZGZYHOMD-UHFFFAOYSA-N oxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 230000002378 acidificating Effects 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000003472 neutralizing Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000012445 acidic reagent Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000005039 chemical industry Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 239000010805 inorganic waste Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000010813 municipal solid waste Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Abstract
The invention discloses a waste gas oxidation treatment system which comprises an ozone generator. A demisting layer, a spray layer, a packing layer and an aeration layer are arranged in an oxidation spray tower from top to bottom, the aeration layer consists of a plurality of aeration disks, an ozone outlet of the ozone generator is communicated with the aeration layer in the oxidation spray tower, a plurality of packing layers are arranged in a catalytic oxidation tower, main packing includes catalysts, and a demisting layer, a spray layer and a packing layer are arranged in an acid-base neutralization tower from top to bottom. Compared with the prior art, the waste gas oxidation treatment system is more thorough in waste gas treatment, better in effect and lower in cost.
Description
Technical field
The present invention relates to a kind of exhaust treatment system, particularly relate to a kind of off-gas oxidizing treatment system.
Background technology
The industries such as chemical industry, pharmacy, food, papermaking, chemical fertilizer, printing and dyeing, spraying, iron and steel, garbage disposal all can produce organic exhaust gas and inorganic waste gases in process of production, be discharged in atmosphere, the quality that can have a strong impact on atmosphere, causes severe contamination to surrounding environment.
In prior art, system for the treatment of waste gas comprises end to end waste gas enclosed area, catalytic oxidation spray column, acidic oxidation spray column, alkaline neutralizing tower and high pressure positive blower, in catalytic oxidation spray column, acidic oxidation spray column and alkaline neutralizing tower, be respectively equipped with the air cleaner that catalytic oxidant, acid reagent and alkaline reagent are housed, waste gas out enters this system in waste gas enclosed area, after catalytic oxidation, washing neutralization, through high-pressure unit, discharge.Its shortcoming is as follows: the oxidation catalyst of employing is hydrogen peroxide, and hydrogen peroxide is the aqueous solution of hydrogen peroxide, and its oxidizing potential is 0.87, and oxidisability is limited, and treatment effect is limited; In addition hydrogen peroxide can not be self-sufficient, needs to buy, and whole system use amount is larger, and processing cost is high; In order to strengthen the effect of processing, adopt a plurality of catalytic oxidation sprinkling equipments, can make equipment investment increase, business efficiency reduces.
Summary of the invention
The object of this invention is to provide a kind of off-gas oxidizing treatment system, more thorough to exhaust-gas treatment, better effects if, cost is lower.
For achieving the above object, the technical solution used in the present invention is:
A kind of off-gas oxidizing treatment system of the present invention, comprise gas sampling district, oxidation spray column, catalytic oxidation tower, acid-base neutralization tower, exhaust blower and chimney, the waste gas outlet in gas sampling district is communicated with the import of oxidation spray column by exhaust tube, and the outlet of oxidation spray column is communicated with the import of catalytic oxidation tower by exhaust tube; The outlet of catalytic oxidation tower is communicated with the import of acid-base neutralization tower by exhaust tube, the outlet of acid-base neutralization tower is communicated with the entrance of exhaust blower by blast pipe, the outlet of exhaust blower is communicated with the entrance of chimney, the outlet of chimney is in communication with the outside, also comprise ozone generator, in described oxidation spray column, be from top to bottom provided with demist layer, spraying layer, packing layer and aeration layer, aeration layer consists of some aeration plates, and the ozone outlet of ozone generator communicates with the aeration layer in oxidation spray column; Some packing layers are set in catalytic oxidation tower, and main stuffing thing is catalyst; In acid-base neutralization tower, be from top to bottom provided with demist layer, spraying layer and packing layer.
Compared with the existing technology, owing to being provided with ozone generator and aeration layer, by ozone generator, to the aeration plate of tower bottom, pass into ozone, ozone can be self-sufficient, without adding by purchase, therefore processing cost reduced greatly; In addition ozone has higher strong oxidizing property, and oxidizing potential is 2.07, and ozone produces elemental oxygen under catalysis state, and the oxidizing potential of elemental oxygen is 2.42, so the oxidation processes better effects if of ozone; Also, because oxidation spray column and acid-base neutralization tower all comprise the sandwich construction of demist layer, spraying layer, packing layer and aeration layer, so reduced the input of equipment when improving treatment effect, economic benefit is higher; And the catalytic oxidation process of native system need not spray, use catalyst and the ozone reaction of solid to carry out catalysis to waste gas, catalyst once adds effectively lifelong.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure: 1, gas sampling district, 2, oxidation spray column, 3, catalytic oxidation tower, 4, acid-base neutralization tower, 5, exhaust blower, 6, ozone generator.
The specific embodiment
Under below in conjunction with drawings and Examples, the present invention will be described.
As shown in Figure 1, a kind of off-gas oxidizing treatment system of the present invention, comprise gas sampling district 1, oxidation spray column 2, catalytic oxidation tower 3, acid-base neutralization tower 4, exhaust blower 5 and chimney, in oxidation spray column 2, be from top to bottom provided with demist layer, spraying layer, packing layer and aeration layer, aeration layer consists of some aeration plates, the ozone outlet of ozone generator 6 communicates with the aeration layer in oxidation spray column 2, the waste gas outlet in gas sampling district 1 is communicated with the import of oxidation spray column 2 by exhaust tube, the outlet of oxidation spray column 2 is communicated with catalytic oxidation tower 3 with the import of catalytic oxidation tower 3 outlet by exhaust tube is communicated with the import of acid-base neutralization tower 4 by exhaust tube, the outlet of acid-base neutralization tower 4 is communicated with the entrance of exhaust blower 5 by blast pipe, the outlet of exhaust blower 5 is communicated with the entrance of chimney, the outlet of chimney is in communication with the outside, also comprise ozone generator 6, catalytic oxidation tower 3 is interior arranges some packing layers, and main stuffing thing is catalyst, in acid-base neutralization tower 4, be from top to bottom provided with demist layer, spraying layer and packing layer, packing layer main stuffing thing is alkaline reagent, and the PH of spray liquid is about 9-10.
Described spraying layer and packing layer can be established several, guarantee treatment effect better, more thorough.
The present embodiment is preferentially selected, and described ozone generator 6 is for to utilize positive high voltage ionized air to produce the positive charge ozone generator of positively charged ozone; Described catalyst is the mixture of multiple metal oxide containing precious metals, and such configuration makes the effect of exhaust-gas treatment best.
In the water spraying for the first time, add oxidation accelerator, oxidation accelerator forms oxidation promotion film on inside and the packing layer top layer of tower body, once adds, effective throughout one's life.
The course of work of oxidation spray column 2: the positive charge ozone that positive charge ozone generator 2 is produced is passed in aeration plate, when spraying for the first time, add oxidation accelerator, waste gas is passed into by the air inlet 6 of bottom, side, processes gas later and is flowed out by tower top end exhaust outlet.
Ozone generator 6 utilizes positive high voltage ionized air to produce positive charge ozone (O
3 +), then by positive charge ozone (O
3 +) squeeze into aeration plate, make it to mix with the water of tower bottom.In the process of spray, positive charge ozone (O
3 +) under the effect of oxidation accelerator, forming a large amount of hydroxyl (OH), hydroxyl (OH) has extremely strong oxidability, and its oxidizing potential is 2.8, is only second to the fluorine that occurring in nature oxidizing potential is the strongest (oxidizing potential of fluorine is 2.87).In advanced oxidation decomposes, positive charge ozone (O
3 +) participating in directly reaction, hydroxyl (OH) participates in indirect reaction, and under PH>4 condition, 90% is completed by indirect reaction.The particularly decomposition to organic exhaust gas, after direct and indirect reaction, resolution ratio reaches more than 95%.
Advanced oxidation and pollutant obtain reaction path:
Directly react: pollutant+O
3→ CO
2+ H
2o+RCOOH
O
3(Eo=2.07V) selective, speed is slow;
Indirect reaction: pollutant+OH → CO
2+ H
2o+RCOOH
OH(Eo=2.8V) current potential is high, non-selectivity, and speed is fast, and respond is strong, can cause chain reaction organic matter is thoroughly degraded.
Compared with the existing technology, owing to being provided with ozone generator and aeration layer, by ozone generator, to the aeration plate of tower bottom, pass into ozone, ozone can be self-sufficient, without adding by purchase, therefore processing cost reduced greatly; In addition ozone has higher strong oxidizing property, and oxidizing potential is 2.07, and ozone produces elemental oxygen under catalysis state, and the oxidizing potential of elemental oxygen is 2.42, so the oxidation processes better effects if of ozone; Also, because oxidation spray column and acid-base neutralization tower all comprise the sandwich construction of demist layer, spraying layer, packing layer and aeration layer, so reduced the input of equipment when improving treatment effect, economic benefit is higher; And the catalytic oxidation process of native system need not spray, use catalyst and the ozone reaction of solid to carry out catalysis to waste gas, catalyst once adds effectively lifelong.
Claims (5)
1. an off-gas oxidizing treatment system, comprise gas sampling district (1), oxidation spray column (2), catalytic oxidation tower (3), acid-base neutralization tower (4), exhaust blower (5) and chimney, the waste gas outlet in gas sampling district (1) is communicated with the import of oxidation spray column (2) by exhaust tube, and the outlet of oxidation spray column (2) is communicated with the import of catalytic oxidation tower (3) by exhaust tube, the outlet of catalytic oxidation tower (3) is communicated with the import of acid-base neutralization tower (4) by exhaust tube, the outlet of acid-base neutralization tower (4) is communicated with the entrance of exhaust blower (5) by blast pipe, the outlet of exhaust blower (5) is communicated with the entrance of chimney, the outlet of chimney is in communication with the outside, it is characterized in that: also comprise ozone generator (6), in described oxidation spray column (2), be from top to bottom provided with demist layer, spraying layer, packing layer and aeration layer, aeration layer consists of some aeration plates, the ozone outlet of ozone generator (6) communicates with the aeration layer in oxidation spray column (2), catalytic oxidation tower arranges some packing layers in (3), and main stuffing thing is catalyst, acid-base neutralization tower is from top to bottom provided with demist layer, spraying layer and packing layer in (4).
2. a kind of off-gas oxidizing treatment system according to claim 1, is characterized in that: described spraying layer and packing layer can be established several.
3. a kind of off-gas oxidizing treatment system according to claim 1, is characterized in that: described ozone generator (6) is for to utilize positive high voltage ionized air to produce the positive charge ozone generator of positively charged ozone.
4. off-gas oxidizing treatment system according to claim 1, is characterized in that: the mixture that described catalyst is multiple metal oxide containing precious metals.
5. a kind of off-gas oxidizing treatment system according to claim 1, is characterized in that: in the water spraying for the first time, add oxidation accelerator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210257984.2A CN102772987B (en) | 2012-07-24 | 2012-07-24 | Waste gas oxidation treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210257984.2A CN102772987B (en) | 2012-07-24 | 2012-07-24 | Waste gas oxidation treatment system |
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| Publication Number | Publication Date |
|---|---|
| CN102772987A CN102772987A (en) | 2012-11-14 |
| CN102772987B true CN102772987B (en) | 2014-08-13 |
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|---|---|---|---|
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106861395A (en) * | 2017-03-09 | 2017-06-20 | 秦皇岛领先康地农业技术有限公司 | It is a kind of for the oxidization processing system waste gas produced in feces of livestock and poultry harmless treatment |
| CN107261790A (en) * | 2017-06-26 | 2017-10-20 | 芜湖纯元光电设备技术有限公司 | A kind of computer based oxidation treatment device robot control system(RCS) |
| CN110052098A (en) * | 2018-01-18 | 2019-07-26 | 梁亚星 | One kind bleachinging and dyeing dedusting oil removing deodorization VOC waste gas treatment equipment |
| CN110433631A (en) * | 2019-08-20 | 2019-11-12 | 河北唯沃环境工程科技有限公司 | It is a kind of to quantify oxidation coupling reinforcing absorption while removing multi-pollutant technology |
| CN110953599A (en) * | 2019-12-20 | 2020-04-03 | 广东佳德环保科技有限公司 | VOCs waste gas catalytic combustion system and method |
| CN112691528A (en) * | 2020-12-28 | 2021-04-23 | 厦门钨业股份有限公司 | Acid waste gas treatment system |
| CN114686282B (en) * | 2022-04-01 | 2023-04-07 | 中石化江苏石油工程设计有限公司 | Natural gas wet desulphurization device and method |
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| CN100490943C (en) * | 2007-02-09 | 2009-05-27 | 中北大学 | Apparatus for processing waste air including oxynitride |
| CN201441880U (en) * | 2009-05-08 | 2010-04-28 | 大连汪洋环境工程有限公司 | Treatment device for nitrogen oxide waste gas containing acid gas |
| CN202136914U (en) * | 2011-07-07 | 2012-02-08 | 昆山协孚人造皮有限公司 | Waste gas deodorization and treatment system in residue blanking region |
| CN202751950U (en) * | 2012-07-24 | 2013-02-27 | 徐州市龙泰臭氧设备制造有限公司 | Waste gas oxidation treatment system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005014134A2 (en) * | 2003-07-09 | 2005-02-17 | Belco Technologies Corporation | WET SCRUBBING APPARATUS AND METHOD FOR CONTROLLING NOx EMISSIONS |
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2012
- 2012-07-24 CN CN201210257984.2A patent/CN102772987B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100490943C (en) * | 2007-02-09 | 2009-05-27 | 中北大学 | Apparatus for processing waste air including oxynitride |
| CN201441880U (en) * | 2009-05-08 | 2010-04-28 | 大连汪洋环境工程有限公司 | Treatment device for nitrogen oxide waste gas containing acid gas |
| CN202136914U (en) * | 2011-07-07 | 2012-02-08 | 昆山协孚人造皮有限公司 | Waste gas deodorization and treatment system in residue blanking region |
| CN202751950U (en) * | 2012-07-24 | 2013-02-27 | 徐州市龙泰臭氧设备制造有限公司 | Waste gas oxidation treatment system |
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| CN102772987A (en) | 2012-11-14 |
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Effective date of registration: 20161017 Address after: 221140, -2-5, 1 times Avenue, Chengbei Development Zone, Xuzhou City, Jiangsu Province Patentee after: Jiangsu Longtai environmental protection equipment manufacturing Co., Ltd. Address before: 221000, No. 1, times Avenue, Chengbei Development Zone, nine Li City, Jiangsu, Xuzhou Patentee before: Xuzhou Longtai Ozone Equipment Manufacturing Co.,Ltd. |
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Denomination of invention: Waste gas oxidation treatment system Effective date of registration: 20190423 Granted publication date: 20140813 Pledgee: Xuzhou Huaihai Science and Technology Guarantee Co., Ltd. Pledgor: Jiangsu Longtai environmental protection equipment manufacturing Co., Ltd. Registration number: 2019320000194 |
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Date of cancellation: 20200917 Granted publication date: 20140813 Pledgee: Xuzhou Huaihai Science and Technology Guarantee Co.,Ltd. Pledgor: JIANGSU LONGTAI ENVIRONMENTAL PROTECTION EQUIPMENT MANUFACTURING Co.,Ltd. Registration number: 2019320000194 |