CN1679999A - Purifying treatment of industrial organic waste gas with waste gas conversion into energy circulating utilization - Google Patents
Purifying treatment of industrial organic waste gas with waste gas conversion into energy circulating utilization Download PDFInfo
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- CN1679999A CN1679999A CN 200510032955 CN200510032955A CN1679999A CN 1679999 A CN1679999 A CN 1679999A CN 200510032955 CN200510032955 CN 200510032955 CN 200510032955 A CN200510032955 A CN 200510032955A CN 1679999 A CN1679999 A CN 1679999A
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- waste gas
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- catalytic purification
- dedusting
- desorb
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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
- B01D53/864—Removing carbon monoxide or hydrocarbons
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/40083—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption
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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
- B01D53/02—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 by adsorption, e.g. preparative gas chromatography
- B01D53/06—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 by adsorption, e.g. preparative gas chromatography with moving adsorbents, e.g. rotating beds
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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)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Treating Waste Gases (AREA)
Abstract
A process for treating the industrial organic waste gas in order to cyclically use it includes such steps as dusting, adsorptive separating to obtain organic waste while exhaust air, desorbing, catalytic cleaning to generate CO2 and H2O, cyclically using part of the heat generated by the catalytic cleaning unit, and delivering the rest of said heat to heat exchanger.
Description
Technical field
The present invention relates to the purifying treatment method of industrial organic exhaust gas, particularly relate to the purifying treatment method that waste gas after a kind of will the purification is converted into the recycling industrial organic exhaust gas of the energy.
Background technology
In recent years, serious environmental is polluted day by day, and particularly air pollution has caused great harm to the ecological environment that weather and people depend on for existence.In the environomental pollution source, industrial organic exhaust gas is one of most important pollution sources.For eliminating Organic Waste Gas Pollution, people have taked the multiple technologies measure, mainly comprise the direct burning method of flame, liquid absorption method, active carbon adsorption and Production by Catalytic Combustion Process etc.The direct burning method of flame is dangerous, and produces volume of smoke, causes secondary pollution; Liquid absorption method adopts spray column to absorb with diesel oil or water washing usually.Because benzene series thing organic exhaust gas is water insoluble, less than 2～4%, therefore, the sprinkle density of water must not be lower than 25T/m to water usually to the saturated absorption concentration of benzene series thing waste gas
2H, not only water resources consumption is big, and can produce a large amount of organic wastewaters, can cause secondary pollution equally, therefore just has to increase great number water treatment investment and disposal cost; In the liquid absorption method, adopt diesel oil to be absorbed with higher efficient, be difficult for handling but produce a large amount of waste diesels; Adopt active carbon adsorption can reclaim toluene, dimethylbenzene, but when exhaust gas concentration was low, this method was both uneconomical, and complex process, simultaneously, because the activated carbon micropore surface is long-pending less, thereby its absorption and desorption rate and efficient are all lower; Production by Catalytic Combustion Process has been acknowledged as the effective and economic method of organic waste-gas purification, the concentration range broad of the manageable waste gas of this method, the organic exhaust gas that is lower than LEL 1/3～1/4 all can adopt catalytic combustion method to be eliminated, but existing Production by Catalytic Combustion Process all adopts direct catalytic purification technology, soon the benzene series thing that discharges in the industrial production and other organic exhaust gas and airborne oxygen directly pass through the catalytic bed of catalytic purification stove with certain temperature and flow velocity, in catalyst surface generation oxidation reaction, generate harmless carbon dioxide and the water of odorless, reach the purpose of pollution abatement.Adopt direct catalytic purification technology non-secondary pollution, belonging to low temperature does not have flame oxidation reaction, has the flames of anger, characteristics such as safe and reliable.But, low at the organic contamination substrate concentration, when adopting catalytic purification technology under the condition of big discharge capacity, reach initiation temperature in order to make waste gas, need to consume a large amount of energy it is carried out preheating.Because exhaust gas concentration is low, the heat that discharges in the catalytic reaction is not enough to compensate the required energy of heating by the exhaust gases far away, thereby very uneconomical, and the application of catalysis and purification technology is restricted.
Summary of the invention
The present invention is intended to address the above problem, and provide a kind of when industrial organic exhaust gas is purified, pollutant can be converted into the energy is reclaimed, be used to compensate the required energy of heating by the exhaust gases, thereby energy savings in a large number, and non-secondary pollution in the purification process, the purifying treatment method that waste gas is converted into the recycling industrial organic exhaust gas of the energy that purifying rate is high.
For achieving the above object, the invention provides and a kind of waste gas is converted into the purifying treatment method of the recycling industrial organic exhaust gas of the energy, this method comprises the steps:
A, industrial waste gas is carried out one-time dedusting at least by dust arrester;
Industrial waste gas after b, the dedusting carries out adsorbing separation by a rotating separation device, and the debirs in the industrial waste gas are separated, and the pure air after the separation is discharged by floss hole;
C, the debirs that are adsorbed onto separator are carried out desorb, the high-concentration waste gas after the desorb is sent into arrangement for catalytic purification and is carried out generating carbon dioxide and water behind the catalytic purification;
The heat part that d, arrangement for catalytic purification produce is recycled by self, and another part is then delivered to another heat exchanger, is used as in the industrial production or the thermal source in the decontamination process.
Among the step a, preferred dedusting number of times is twice, and described dedusting is dedusting of eddy flow plate and screen pack dedusting.
Among the step b, described adsorbing separation is that the activated fibre adsorption layer in rotating separation device carries out, and rotating separation device is adsorbed onto debirs on the activated fibre adsorption layer in rotation, and the pure air after the separation is sent to floss hole with the outlet blower fan and discharges.
Among the step c, be the hot blast that arrangement for catalytic purification is discharged to be sent into rotating separation device carry out heating evaporation to the desorb of debirs.The concentration that enters the industrial waste gas of arrangement for catalytic purification will be lower than 1/4th of LEL, and this concentration is regulated by outlet blower fan and desorb circulating fan.
When the outlet temperature of arrangement for catalytic purification was lower than desorption temperature, the hot blast that arrangement for catalytic purification is discharged directly sent rotating separation device for desorb; When the outlet temperature of arrangement for catalytic purification is higher than desorption temperature, then hot blast is delivered to the heat exchanger of a need heating occasion.
In the steps d, the heat exchanger of the heat part that arrangement for catalytic purification produces in the outlet gatherer recycles, another part is then delivered to the heat exchanger of a need heating occasion through second control valve, be used as in the industrial production or the thermal source in the decontamination process.
Contribution of the present invention is that it has effectively overcome the drawback of existing industrial organic waste-gas purification processing method, and a kind of economy, efficient, practical purifying treatment method are provided.The present invention organically is combined as a whole technological means such as final dusting, adsorbing separation, catalytic purification, and taken into full account the utilization of waste gas, and the heat behind the catalytic purification is recycled, be used to compensate the required energy of heating by the exhaust gases, form an optimum circulation, thereby can save the required electric energy equal energy source of heating by the exhaust gases greatly.The present invention realized waste gas purification and energy savings unification, thereby both reached environmental requirement, have actual economic effect again.Method non-secondary pollution of the present invention, technology is reliable, and system operation cost is low, the purification efficiency height.
Description of drawings
Fig. 1 is a schematic flow sheet of the present invention.
Fig. 2 is the used cleaning equipment connection diagram of the present invention.
Fig. 3 is the rotating separation device radial view.
The specific embodiment
The following example is to further explanation of the present invention and explanation, and the present invention is not constituted any limitation.
Purifying treatment method with the industrial organic exhaust gas in the container production in this example is that example describes, and its technological process and equipment are as shown in Figure 1 and Figure 2.
At first be that industrial waste gas is carried out dedusting, among Fig. 1, the industrial waste gas that produces in paint spray booth 1 is delivered to Gas-Rotation-Plate Dust Separator 2 through pipeline and is carried out the dedusting first time.The waste gas that produces in the drying room 16 is sent in the pipeline that paint spray booth comes out through first control valve 9 by pipeline by exhaust blower 8, converges mutually with the waste gas of sending from paint spray booth, and the waste gas after converging carries out the dedusting second time by filtering spark arrester 3.
Dustless waste gas enters a rotating separation device 5 through fire resisting damper 4 and carries out adsorbing separation, debirs in the industrial waste gas are separated, this rotating separation device is a rotatable sorption wheel in this example, show as Fig. 3, in the cylindrical shell of sorption wheel 5, in about 3/4ths the space activated fibre is housed, form adsorption zone 5A, about 1/4th space 5B in addition form desorption zone, are used for the debirs of adsorption zone absorption are desorbed.Through after the sorption wheel, debirs are adsorbed on the activated fibre, and waste gas is purified, and the pure air after the separation is discharged by floss hole 18 with outlet blower fan 17.
Because sorption wheel 5 can reach capacity after the absorption of certain hour, therefore need the debirs that are adsorbed onto separator are carried out desorb, desorb is the hot blast that arrangement for catalytic purification is discharged to be sent into rotating separation device carry out heating evaporation, makes the waste gas behind the catalytic combustion become the thermal source of desorb.
High-concentration waste gas after the desorb is sent into arrangement for catalytic purification 7 by desorption cycle blower fan 6 and is carried out catalytic combustion (being low-temperature oxidation), it is 92209439.X that arrangement for catalytic purification 7 adopts applicant's the patent No., name is called the utility model patent of " combined type industrial exhaust gas catalytic purification stove ", and high-concentration waste gas changes into carbon dioxide (CO behind catalytic combustion
2) and water (H
2O).Concentration to the industrial waste gas that enters arrangement for catalytic purification will be controlled, the concentration of industrial waste gas to be controlled at 1/4th (the LEL differences of different waste gas) that are lower than LEL, blast preventing, this concentration is regulated by the air quantity that adjusts one's intention as revealed in what one says machine and desorb circulating fan.
In arrangement for catalytic purification, carry out to produce a large amount of heats after the catalytic reaction, a key character of the present invention is recycling in addition to the heat that is produced, as Fig. 1, the heat part that catalytic reaction produces is introduced the heat exchanger that purifies in the stove through the catalytic purification outlet of still through pipeline, be used for preheating and enter the interior waste gas of catalytic purification stove, to guarantee that waste gas reaches initiation temperature, make catalytic reaction process successive.Another part heat is then delivered to heat exchanger 15 or the sorption wheel 5 in the drying room 16, as the oven dry usefulness thermal source or be used for the debirs on the sorption wheel are carried out desorb.When the outlet temperature of arrangement for catalytic purification was lower than desorption temperature, the hot blast that arrangement for catalytic purification is discharged directly sent rotating separation device for desorb; When the outlet temperature of arrangement for catalytic purification is higher than desorption temperature, then hot blast is delivered to the heat exchanger 15 in the drying room 16.
Method of the present invention is being carried out under the control automatically, and control method can adopt ripe Industry Control method, and first control valve 9 in the pipeline, desorb valve 10, second control valve 11, by-passing valve 12 and outlet blower fan 17, desorption cycle blower fan 6 are controlled.
Claims (9)
1, a kind of waste gas is converted into the purifying treatment method of the recycling industrial organic exhaust gas of the energy, it is characterized in that it comprises the steps:
A, industrial waste gas is carried out one-time dedusting at least by dust arrester;
Industrial waste gas after b, the dedusting carries out adsorbing separation by a rotating separation device, and the debirs in the industrial waste gas are separated, and the pure air after the separation is discharged by floss hole;
C, the debirs that are adsorbed onto separator are carried out desorb, the high-concentration waste gas after the desorb is sent into arrangement for catalytic purification and is carried out generating carbon dioxide and water behind the catalytic purification;
The heat part that d, arrangement for catalytic purification produce is recycled by self, and another part is then delivered to another heat exchanger, is used as in the industrial production or the thermal source in the decontamination process.
2, the method for claim 1 is characterized in that, among the step a, preferred dedusting number of times is twice.
3, method as claimed in claim 2 is characterized in that, among the step a, described dedusting is dedusting of eddy flow plate and screen pack dedusting.
4, the method for claim 1 is characterized in that, among the step b, described adsorbing separation is that the activated fibre adsorption layer in rotating separation device carries out, and rotating separation device is adsorbed onto debirs on the activated fibre adsorption layer in rotation.
5, method as claimed in claim 4 is characterized in that, among the step b, the pure air after the separation is sent to floss hole with the outlet blower fan and discharges.
6, the method for claim 1 is characterized in that, among the step c, is the hot blast that arrangement for catalytic purification is discharged to be sent into rotating separation device carry out heating evaporation to the desorb of debirs.
7, method as claimed in claim 6 is characterized in that, among the step c, the concentration that enters the industrial waste gas of arrangement for catalytic purification will be lower than 1/4th of LEL, and this concentration is regulated by outlet blower fan and desorb circulating fan.
8, method as claimed in claim 7 is characterized in that, when the outlet temperature of arrangement for catalytic purification was lower than desorption temperature, the hot blast that arrangement for catalytic purification is discharged directly sent rotating separation device for desorb; When the outlet temperature of arrangement for catalytic purification is higher than desorption temperature, then the heat exchanger of a need heating occasion will be delivered in the heat.
9, the method for claim 1, it is characterized in that, in the steps d, the heat exchanger of the heat part that arrangement for catalytic purification produces in the outlet gatherer recycles, another part is then delivered to the heat exchanger of a need heating occasion through second control valve, be used as in the industrial production or the thermal source in the decontamination process.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100329556A CN100342949C (en) | 2005-01-21 | 2005-01-21 | Purifying treatment of industrial organic waste gas with waste gas conversion into energy circulating utilization |
| PCT/CN2005/002259 WO2006076849A1 (en) | 2005-01-21 | 2005-12-20 | Cleaning process for converting a waste gas into an industrial organic waste gas capable of circulating utilization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100329556A CN100342949C (en) | 2005-01-21 | 2005-01-21 | Purifying treatment of industrial organic waste gas with waste gas conversion into energy circulating utilization |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1679999A true CN1679999A (en) | 2005-10-12 |
| CN100342949C CN100342949C (en) | 2007-10-17 |
Family
ID=35066981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100329556A Expired - Fee Related CN100342949C (en) | 2005-01-21 | 2005-01-21 | Purifying treatment of industrial organic waste gas with waste gas conversion into energy circulating utilization |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN100342949C (en) |
| WO (1) | WO2006076849A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104096446A (en) * | 2014-07-28 | 2014-10-15 | 广西梧州龙鱼漆业有限公司 | Treatment method for exhaust gas produced during paint production and application |
| CN108579319A (en) * | 2018-04-12 | 2018-09-28 | 江西科领爱尔环保设备有限公司 | A kind of drying heating means and device with desorption exhaust gas |
| CN112973442A (en) * | 2021-04-29 | 2021-06-18 | 东营金川水土环境工程有限公司 | System and method for separating, converting and digesting carbon dioxide gas |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104634065B (en) * | 2015-01-12 | 2017-10-27 | 江苏苏青水处理工程集团有限公司 | A kind of system and its technique for handling the organic exhaust gas that ion exchange resin production technology is produced |
| CN108273358B (en) * | 2018-04-11 | 2023-10-31 | 山东亚泰新材料科技有限公司 | Organic waste gas treatment system and treatment method thereof |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2103474A1 (en) * | 1992-11-25 | 1994-05-26 | Shivaji Sircar | Process for removing and destroying low concentrations of oxidizable organic contaminants from a gas stream |
| CN2175637Y (en) * | 1993-08-26 | 1994-08-31 | 中国人民解放军防化研究院技术开发部一部 | Air purification device for treating organic waste gas |
| JPH1043540A (en) * | 1996-07-31 | 1998-02-17 | Seibu Giken:Kk | Organic gas adsorbing and removing sheet and organic gas adsorbing and removing element |
| CN2340495Y (en) * | 1998-05-19 | 1999-09-29 | 中国科学院山西煤炭化学研究所 | Apparatus for treating industrial organic waste gases |
| CN1112228C (en) * | 2000-07-20 | 2003-06-25 | 中国石油化工集团公司 | Method of treating organic waste gas containing vapor |
| CN2537454Y (en) * | 2001-12-27 | 2003-02-26 | 中国人民解放军63971部队 | Organic waste gas purification treatment system |
-
2005
- 2005-01-21 CN CNB2005100329556A patent/CN100342949C/en not_active Expired - Fee Related
- 2005-12-20 WO PCT/CN2005/002259 patent/WO2006076849A1/en not_active Application Discontinuation
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104096446A (en) * | 2014-07-28 | 2014-10-15 | 广西梧州龙鱼漆业有限公司 | Treatment method for exhaust gas produced during paint production and application |
| CN108579319A (en) * | 2018-04-12 | 2018-09-28 | 江西科领爱尔环保设备有限公司 | A kind of drying heating means and device with desorption exhaust gas |
| CN112973442A (en) * | 2021-04-29 | 2021-06-18 | 东营金川水土环境工程有限公司 | System and method for separating, converting and digesting carbon dioxide gas |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100342949C (en) | 2007-10-17 |
| WO2006076849A1 (en) | 2006-07-27 |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071017 Termination date: 20110121 |