CN2175637Y - Air purifier for treating organic waste gas - Google Patents
Air purifier for treating organic waste gas Download PDFInfo
- Publication number
- CN2175637Y CN2175637Y CN 93222819 CN93222819U CN2175637Y CN 2175637 Y CN2175637 Y CN 2175637Y CN 93222819 CN93222819 CN 93222819 CN 93222819 U CN93222819 U CN 93222819U CN 2175637 Y CN2175637 Y CN 2175637Y
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- adsorbent bed
- waste gas
- organic waste
- desorption
- catalytic
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- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Incineration Of Waste (AREA)
- Treating Waste Gases (AREA)
Abstract
The utility model relates to an air purifier for treating organic waste gas in the industry, and the organic waste gas can be treated through the combination of the adsorbing concentration and the catalytic combustion. The air purifier for treating organic waste gas in the industry can form a purifying system through being mainly filled with the adsorption bed of the honeycomb-shaped active carbon and a catalytic combustor; the air purifier for treating organic waste gas in the industry is accompanied with a special prefilter and a three-way switching valve, and the adsorbing concentration, the catalytic combustion, and the regenerative process of the desorption can be totally completed in a system. The air purifier for treating organic waste gas in the industry has the advantages of energy saving, low consumption, high purifying efficiency, no secondary pollution, long service life of the honeycomb-shaped active carbon, low resistance of the adsorbing bed, etc. The air purifier for treating organic waste gas in the industry which can be used for the treatment of the organic waste gas in the industry is particularly suitable for the treatment of the organic waste gas of the large air quantity and the low concentration.
Description
The utility model is the new type purification device that is used to handle industrial organic exhaust gas, is the organic waste-gas purification system with absorption concentrates, catalytic combustion, desorption and regeneration are integrated in one.
Organic waste-gas purification method commonly used now has:
One, absorption absorption method: this is a method commonly used for many years, generally is that initial purifying rate is better, and major defect is that bed resistance is big, equipment is huger, conversion materials trouble more; The organic liquid waste that some organic matters reclaim the back generation separates, purifies loaded down with trivial details, easily causes secondary pollution; The recovery liquid that has does not have value.This method only is applicable to high concentration (1000mg/m
3More than) the occasion handled of organic exhaust gas, it is also bigger that some of them reclaim technological equipment investment.
Two, Production by Catalytic Combustion Process:, be generally 250～400 ℃ though this method is lower than direct firing method ignition temperature.But Production by Catalytic Combustion Process at first will have more stable high-concentration waste gas, and next also will have, and activity is good, the catalyst and the high gas-gas-heat exchanger of heat exchanger effectiveness of good stability.Otherwise external energy (power consumption) increases, and catalyst requires often to change.For example when heat exchanger effectiveness is 50%, the catalyst initiation temperature is that 260 ℃, processing air quantity are 5000m
3The mean concentration of/h, organic exhaust gas is 3000mg/m
3The time, need use the above electric heater makeup energy of 120KW if keep the normal operation of purifier.If when the concentration of organic exhaust gas is lower, then need more electric energy to come makeup energy.
The purpose of this utility model be integrate that absorption concentrates, catalytic combustion, desorption and regeneration, handle organic exhaust gas in the fixed bed mode, enlarged the range of application of organic waste-gas purification; Especially for the improvement of the organic exhaust gas of big air quantity, low concentration, have purification efficiency height, characteristics such as easy to operate.
Main contents of the present utility model are made up of two parts pipeline: first forms organic exhaust gas absorption thickening-purification technology pipeline (heavy line part in the accompanying drawing) by absorption blower fan (1), prefilter (2), switch three-way valve (3), adsorbent bed (4 ' 4), switch three-way valve (3 '); Second portion is formed catalytic combustion loop (fine line part in the accompanying drawing) by adsorbent bed (4,4 '), desorption blower fan (5), catalytic combustor (6), benefit air-cooler (7); Device main body is one or two adsorbent beds in parallel and catalytic combustor.Absorption blower fan (1), prefilter (2), switch three-way valve (3) is connected successively and be positioned on the pipeline of absorption (4,4 ') front end, and switch three-way valve (3 ') is positioned at the purification pipeline tail end of adsorbent bed (4,4 ') back; Desorption blower fan (5) is positioned at the top of adsorbent bed (4,4 '), and its outlet is connected with catalytic combustor (6), and import and adsorbent bed (4,4 ') are connected; Benefit air-cooler (7) is positioned at the benefit cold wind mouth place on the pipeline road that catalytic combustor (6) thermal current exports and adsorbent bed (4,4 ') links to each other.
The utility model purifier divides two stages to finish to the purification of organic exhaust gas, at first is that organic exhaust gas is purified air after adsorbent bed (4,4 ') absorption, simultaneously organic exhaust gas is concentrated; Secondly adsorbent bed (4,4 ') adsorbed organic matter (its concentration is 10～40 times of initial concentration) behind desorption is burnt at catalytic combustor (6), makes this device not produce secondary pollution, and its technological process is as follows:
Earlier triple valve (3) is opened to adsorbent bed (4) during cleaning system work, opened absorption blower fan (1), make air communication cross adsorbent bed (4), organic exhaust gas is adsorbed and makes air cleaning, and purified gas is by triple valve (3 ') emptying.Organic exhaust gas concentration in the tail gas of being discharged by adsorbent bed (4) is near discharge standard (100mg/m
3) time, then stop the adsorption operations of adsorbent bed (4).Triple valve (3) is opened to adsorbent bed (4 '), made air communication cross adsorbent bed (4 ') and carry out adsorption operations.
After adsorbent bed (4) stops adsorption operations, open desorption blower fan (5), air-flow is circulated in the system that adsorbent bed (4), desorption blower fan (5) and catalytic combustor (6) are formed; Start the electric heater of catalytic combustor then, the air-flow in the heating circulation system, and it is controlled at (270～400 ℃) in the required temperature range of catalytic combustion.Send into adsorbent bed (4) from the gas that catalytic combustor (6) is released after heat exchange, utilize the heat of catalytic combustor tail gas, make in the adsorbent bed (4) the organic matter desorption on the Alveolate activated carbon capable come out (its concentration is 10～40 times of initial concentration), and send into catalytic combustor (6), be converted into CO through catalytic oxidation
2And H
2O reaches the purpose of purification.Produce a large amount of heat behind the catalytic combustion, wherein small part emptying, major part is controlled at 80～150 ℃ by mending air-cooler (7) with its temperature, sends into adsorbent bed (4) again, is used for desorption and regeneration, makes full use of the heat energy that catalytic organism burning back produces.During normal desorption, the time that electrical heating is opened is very short; The organic concentration that goes out up to desorption reduces, and the catalytic combustion liberated heat reduces, and the time that electric heater is opened thinks that then desorption and regeneration finishes when elongated.Adsorbent bed behind the desorption can be used for next adsorption operations.When treating that another adsorbent bed (4 ') adsorption operations finishes, also can carry out desorption and regeneration, use repeatedly by turns according to above program.
Two adsorbent beds are installed, and adsorption operations can carry out continuously, also can be interrupted and carry out; Fix at adsorption cycle, can install an adsorbent bed when long break time.The adsorption cycle of adsorbent bed is to decide according to the discharge concentration of actual organic exhaust gas, and the time of every adsorbent bed desorption and regeneration is 5～10 hours.
The difference of the utility model and other cleaning equipment:
1. pre-flock part: adopt the filter felt that contains active carbon with absorption higher boiling larger molecular organics as required sometimes, adopt this moment accordion structure, increase filter area, improve filter effect just to reduce gas-flow resistance.Sometimes use the operate as normal of coke filtration layer with filtering liquid aersol protection adsorbent bed.
2. absorbed portion: 1. adsorbent bed adopts assembling (drawer) formula structure.2. sorbing material is that this active carbon not only has the adsorption capacity of common active carbon, mainly is to make the adsorbent bed resistance low with the Alveolate activated carbon capable of special process machine-shaping; Under same flow conditions, its bed resistance is lower more than 10 times than granular active carbon (4～8 order), thereby makes it be applied to big air quantity (＞5000m
3/ h) the improvement of organic exhaust gas.3. adopt turnover plate type triple valve simple in structure, that cost is low, convenient and practical that the air-flow of big air quantity is switched.4. for the adsorbent bed air-flow is evenly distributed, adopt " V " type airflow-distribution board.
3. catalytic combustion part: catalytic combustor is a vertical structure, and the catalyst of filling is the rare earth oxide of ceramic honey comb load.In order to improve heat exchanger effectiveness, adopt novel round trip shell-and-tube exchanger, the temperature specialized designs that its rate of heat exchange is set during according to desorption.
The utlity model has following characteristics:
1. owing to adopt Alveolate activated carbon capable, make bed resistance little, air quantity and the concentration range of handling organic exhaust gas enlarge, and particularly suitable is to big air quantity, low concentration (air quantity＞5000m
3/ h, concentration＜1000mg/m
3) improvement of organic exhaust gas.Because bed resistance is low, use fan with low voltage just can meet the demands simultaneously.
2. absorption concentrates the concentration that has improved organic exhaust gas, and the organic exhaust gas concentration in the desorption air-flow is 10～40 times of initial concentration, can reach spontaneous combustion concentration in catalytic combustor, has shortened the electrical heating time.Desorption and regeneration has made full use of the heat that catalyticing combustion process produces in addition.When the concentration of organic waste gas is lower than 3000mg/m
3The time, compare with the existing catalytic combustion system of handling equal air quantity and can save electric power more than 10 times.
3. employing modular construction is convenient to transportation, installation, maintenance and conversion materials more.
4. apparatus system is rationally distributed, compact, floor space is little.As disposal ability is 10000m
3The device of/h air quantity, floor space are 35m
2About.
5. the purification efficiency height of this purifier.As to the purifying rate of benzene class waste gas more than 95%.Take desorption and regeneration and purification in the system, do not produce secondary pollution.The whole system noise is lower than 85db.
6. sorbing material (Alveolate activated carbon capable) long service life was loaded sorbing material service life more than 2 years.
7. the prefilter of this purifier, adsorbent bed and catalytic combustor can be taked different compound modes, to reach best result of use according to the size in the object (having or not liquid aersol) that purifies, work characteristics (be continuous or interrupted) and place.Can be with single also available double bed as adsorbent bed, a plurality of adsorbent beds can be regenerated with a combustion chamber etc.
8. the accessible air quantity of purifier of the present utility model is 1000～50000(m
3/ h).
The purifier system flow chart:
1-absorption blower fan 2-prefilter 3,3 '-switch three-way valve
4,4 '-adsorbent bed 5-desorption blower fan 6-catalytic combustor 7-mends air-cooler
Example 1 benzene class waste gas purification apparatus
The purifier of pencil japanning shop production line is handled benzene class waste gas.Two adsorbent beds and catalytic combustor are installed are formed cleaning system.The total blast volume of handling waste gas is 8000m
3/ h, floor space is 35m
2, desorption air circulation 500～1000m
3/ h, total heating power 50kw, the catalytic combustion temperature is 290～350 ℃, desorption temperature is 90～150 ℃.The total concentration of benzene class is 400mg/m in the waste gas
3About, purifying rate is: benzene＞90%, toluene＞95%, dimethylbenzene＞99%; The stink removal efficiency is 92%.Turned round 3 years, and do not changed sorbing material as yet.This purifier was compared with former honeybee wheel purifier, and purification efficiency is more than doubled, and power consumption has reduced by six times.
Example 2 gluing waste gas purification apparatuses
Plastic, rubber factory sport footwear closes the purifier of primary coat glue production line, in order to handle toluene, the ester class organic exhaust gas that produces in the gluing oven dry.Purifier as example 1 is installed, and the processing air quantity is 10000m
3/ h, the heating general power of catalytic combustor is the actual normal 27kw of use of 54kw(), organic total concentration is 800mg/m in the waste gas
3, its gross decontamination rate is more than 90%.
The purifier of example 3 acetone waste gas
The purifier of impregnation workshop section is in order to handle acetone waste gas.Two adsorbent beds and catalytic combustor are installed are formed cleaning system, floor space 30m
2The processing air quantity is 2000m
3/ h, catalytic combustor heating power 27kw, desorption air circulation are 400～600m
3/ h, 300～400 ℃ of catalytic combustion temperature, desorption temperature is 80～140 ℃.Acetone concentration is 400～500mg/m in waste gas
3The time, purifying rate is 93%.Compare with the catalytic combustion system of equal disposal ability, this purifier can be saved 6～10 times of electric energy.
Waste gas purification apparatuses such as example 4 indolines
The purifier of waste gas such as dye chemical industry factory and office reason indoline, methyl isobutene, it is 10000m that air quantity is handled in design
3/ h.Adopt single adsorbent bed and catalytic combustor to form cleaning system, the catalytic combustion temperature is 300～400 ℃, and the desorption and regeneration temperature is 100～150 ℃.Heating power, desorption air circulation are with example 1.Purifying rate is more than 90%.
Claims (5)
1, a kind of air cleaning unit of handling organic exhaust gas is formed with catalytic combustion two parts by absorption is concentrated; It is characterized in that administering big air quantity (＞5000m in the fixed bed mode
3/ h), low concentration (＜1000mg/m
3) organic exhaust gas, will adsorb concentrate, catalytic combustion, desorption and regeneration be integrated in one; This device is made up of two parts pipeline: first is by absorption blower fan (1), prefilter (2), switch three-way valve (3), adsorbent bed (4,4 '), switch three-way valve (3 ') forms organic exhaust gas absorption thickening-purification technology pipeline, second portion is formed the catalytic combustion loop by adsorbent bed (4,4 '), desorption blower fan (5), catalytic combustor (6), benefit air-cooler (7); This device main body is the adsorbent bed (4 of two parallel connections, 4 ') and catalytic combustor (6), absorption blower fan (1), prefilter (2), switch three-way valve (3) link to each other successively and are positioned at adsorbent bed (4,4 ') on the pipeline of front end, switch three-way valve (3 ') is positioned at the purification pipeline tail end of adsorbent bed (4,4 ') back; Desorption blower fan (5) is positioned at adsorbent bed (4,4 ') top, and its outlet links to each other with catalytic combustor (6), and import and adsorbent bed (4,4 ') link to each other; Mend air-cooler (7) and be positioned at benefit cold wind mouth place on the pipeline that the thermal current outlet of catalytic combustor (6) links to each other with adsorbent bed (4,4 ').
2,, it is characterized in that prefilter (2) uses filter felt (employing accordion structure) or the coke filtration layer with absorption property by the described purifier of claim 1.
3, by the described purifier of claim 1, it is characterized in that switch three-way valve (3,3 ') is the turnover plate type structure.
4, by the described purifier of claim 1, it is characterized in that adsorbent bed (4,4 ') is assembly type (drawer) structure, the sorbing material of filling is an Alveolate activated carbon capable.
5, by the described purifier of claim 1, it is characterized in that catalytic combustor (6) is a vertical structure, the catalyst (rare earth oxide) of filling ceramic honey comb load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93222819 CN2175637Y (en) | 1993-08-26 | 1993-08-26 | Air purifier for treating organic waste gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93222819 CN2175637Y (en) | 1993-08-26 | 1993-08-26 | Air purifier for treating organic waste gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2175637Y true CN2175637Y (en) | 1994-08-31 |
Family
ID=33801305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93222819 Expired - Fee Related CN2175637Y (en) | 1993-08-26 | 1993-08-26 | Air purifier for treating organic waste gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2175637Y (en) |
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006076849A1 (en) * | 2005-01-21 | 2006-07-27 | Lihui Zhong | Cleaning process for converting a waste gas into an industrial organic waste gas capable of circulating utilization |
| CN1319600C (en) * | 2005-09-30 | 2007-06-06 | 复旦大学 | Plant and method for processing low-concentration high-capacity foul gas |
| CN100428978C (en) * | 2006-08-19 | 2008-10-29 | 蔡宇峰 | Chamber off-line desorption bag adsorption equipment |
| CN101024145B (en) * | 2006-01-30 | 2010-05-26 | 石川岛播磨重工业株式会社 | Method of processing volatile organic compound by using gas turbine and processing system thereof |
| CN101972602A (en) * | 2010-08-31 | 2011-02-16 | 宇星科技发展(深圳)有限公司 | System for treating organic exhaust gas by adsorptive-catalytic combustion |
| CN102049190A (en) * | 2010-07-28 | 2011-05-11 | 华东理工大学 | Device for collecting and processing hydrochloric ether tail gas |
| CN101293165B (en) * | 2008-01-15 | 2011-10-26 | 青岛华世洁环保科技有限公司 | High-efficiency energy-saving activated carbon fiber organic waste gas recycling system |
| CN101474521B (en) * | 2008-12-30 | 2012-11-07 | 中国科学院长春应用化学研究所 | Indoor air purification method |
| CN103505951A (en) * | 2013-09-18 | 2014-01-15 | 江苏兆年涂装科技有限公司 | Waste gas treatment device |
| CN103505952A (en) * | 2013-09-18 | 2014-01-15 | 江苏兆年涂装科技有限公司 | Waste gas treatment system with heating recovery function |
| CN104634065A (en) * | 2015-01-12 | 2015-05-20 | 江苏苏青水处理工程集团有限公司 | System and process for treating organic waste gas generated in ion resin production process |
| CN105056701A (en) * | 2015-08-14 | 2015-11-18 | 北京万向新元工程技术有限公司 | Process and equipment for waste gas control through composite technology |
| CN105413387A (en) * | 2015-11-12 | 2016-03-23 | 宁波大学 | VOCs tail gas adsorption-catalytic combustion treatment system |
| CN106268168A (en) * | 2016-08-30 | 2017-01-04 | 武汉威富永磁科技有限公司 | A kind of cleaning equipment for waste organic gas and purification method thereof |
| CN106801880A (en) * | 2017-02-20 | 2017-06-06 | 云汇环保科技南通有限公司 | A kind of mobile model catalytic combustion system |
| CN107051102A (en) * | 2017-01-20 | 2017-08-18 | 浙江赛鹭鑫仪器有限公司 | A kind of VOC on-line monitoring systems and governing system |
| CN108114571A (en) * | 2018-02-02 | 2018-06-05 | 上海穗杉实业股份有限公司 | A kind of system and method for handling large-wind-volume low-concentration mixing pernicious gas |
| CN108579320A (en) * | 2018-04-20 | 2018-09-28 | 盐城中创环保科技有限公司 | A kind of concentration-arrangement for catalytic purification, the system and method for low-concentration organic exhaust gas |
| CN109569190A (en) * | 2019-01-17 | 2019-04-05 | 广东省盛世环保科技有限公司 | A kind of concentration-catalytic combustion device all-in-one machine |
| CN109966856A (en) * | 2017-12-27 | 2019-07-05 | 震旦（中国）有限公司 | A kind of coating tail gas end-o f-pipe -control device |
| CN111151094A (en) * | 2019-12-31 | 2020-05-15 | 四川信邦泰环保科技有限公司 | Regeneration and purification method for organic polluted waste gas |
-
1993
- 1993-08-26 CN CN 93222819 patent/CN2175637Y/en not_active Expired - Fee Related
Cited By (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006076849A1 (en) * | 2005-01-21 | 2006-07-27 | Lihui Zhong | Cleaning process for converting a waste gas into an industrial organic waste gas capable of circulating utilization |
| CN1319600C (en) * | 2005-09-30 | 2007-06-06 | 复旦大学 | Plant and method for processing low-concentration high-capacity foul gas |
| CN101024145B (en) * | 2006-01-30 | 2010-05-26 | 石川岛播磨重工业株式会社 | Method of processing volatile organic compound by using gas turbine and processing system thereof |
| CN100428978C (en) * | 2006-08-19 | 2008-10-29 | 蔡宇峰 | Chamber off-line desorption bag adsorption equipment |
| CN101293165B (en) * | 2008-01-15 | 2011-10-26 | 青岛华世洁环保科技有限公司 | High-efficiency energy-saving activated carbon fiber organic waste gas recycling system |
| CN101474521B (en) * | 2008-12-30 | 2012-11-07 | 中国科学院长春应用化学研究所 | Indoor air purification method |
| CN102049190A (en) * | 2010-07-28 | 2011-05-11 | 华东理工大学 | Device for collecting and processing hydrochloric ether tail gas |
| CN101972602A (en) * | 2010-08-31 | 2011-02-16 | 宇星科技发展(深圳)有限公司 | System for treating organic exhaust gas by adsorptive-catalytic combustion |
| CN101972602B (en) * | 2010-08-31 | 2013-06-19 | 宇星科技发展(深圳)有限公司 | System for treating organic exhaust gas by adsorptive-catalytic combustion |
| CN103505952B (en) * | 2013-09-18 | 2015-10-28 | 江苏兆年涂装科技有限公司 | There is the exhaust treatment system of heating recovery function |
| CN103505952A (en) * | 2013-09-18 | 2014-01-15 | 江苏兆年涂装科技有限公司 | Waste gas treatment system with heating recovery function |
| CN103505951A (en) * | 2013-09-18 | 2014-01-15 | 江苏兆年涂装科技有限公司 | Waste gas treatment device |
| CN104634065A (en) * | 2015-01-12 | 2015-05-20 | 江苏苏青水处理工程集团有限公司 | System and process for treating organic waste gas generated in ion resin production process |
| CN105056701A (en) * | 2015-08-14 | 2015-11-18 | 北京万向新元工程技术有限公司 | Process and equipment for waste gas control through composite technology |
| CN105413387B (en) * | 2015-11-12 | 2018-07-10 | 宁波大学 | A kind of VOCs tail gas adsorptions-catalytic-combustion processing system |
| CN105413387A (en) * | 2015-11-12 | 2016-03-23 | 宁波大学 | VOCs tail gas adsorption-catalytic combustion treatment system |
| CN106268168A (en) * | 2016-08-30 | 2017-01-04 | 武汉威富永磁科技有限公司 | A kind of cleaning equipment for waste organic gas and purification method thereof |
| CN107051102A (en) * | 2017-01-20 | 2017-08-18 | 浙江赛鹭鑫仪器有限公司 | A kind of VOC on-line monitoring systems and governing system |
| CN106801880A (en) * | 2017-02-20 | 2017-06-06 | 云汇环保科技南通有限公司 | A kind of mobile model catalytic combustion system |
| CN109966856A (en) * | 2017-12-27 | 2019-07-05 | 震旦（中国）有限公司 | A kind of coating tail gas end-o f-pipe -control device |
| CN108114571A (en) * | 2018-02-02 | 2018-06-05 | 上海穗杉实业股份有限公司 | A kind of system and method for handling large-wind-volume low-concentration mixing pernicious gas |
| CN108579320A (en) * | 2018-04-20 | 2018-09-28 | 盐城中创环保科技有限公司 | A kind of concentration-arrangement for catalytic purification, the system and method for low-concentration organic exhaust gas |
| CN108579320B (en) * | 2018-04-20 | 2021-02-26 | 盐城中创环保科技有限公司 | Concentration-catalytic purification device, system and method for low-concentration organic waste gas |
| CN109569190A (en) * | 2019-01-17 | 2019-04-05 | 广东省盛世环保科技有限公司 | A kind of concentration-catalytic combustion device all-in-one machine |
| CN111151094A (en) * | 2019-12-31 | 2020-05-15 | 四川信邦泰环保科技有限公司 | Regeneration and purification method for organic polluted waste gas |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |