CN101732951B - Organic waste gas treatment equipment - Google Patents
Organic waste gas treatment equipment Download PDFInfo
- Publication number
- CN101732951B CN101732951B CN200910256411.6A CN200910256411A CN101732951B CN 101732951 B CN101732951 B CN 101732951B CN 200910256411 A CN200910256411 A CN 200910256411A CN 101732951 B CN101732951 B CN 101732951B
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- China
- Prior art keywords
- distributor
- tower body
- wall
- waste gas
- inner core
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 239000007789 gas Substances 0.000 title claims abstract description 49
- 239000010815 organic waste Substances 0.000 title claims abstract description 12
- 230000002745 absorbent Effects 0.000 claims abstract description 15
- 239000002250 absorbent Substances 0.000 claims abstract description 15
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 41
- 239000002912 waste gas Substances 0.000 abstract description 13
- 238000004064 recycling Methods 0.000 abstract description 2
- 238000010521 absorption reaction Methods 0.000 description 20
- 239000007788 liquid Substances 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000005416 organic matter Substances 0.000 description 5
- 238000001179 sorption measurement Methods 0.000 description 5
- 238000000746 purification Methods 0.000 description 4
- 239000012855 volatile organic compound Substances 0.000 description 4
- 239000003463 adsorbent Substances 0.000 description 3
- 238000007084 catalytic combustion reaction Methods 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 239000003610 charcoal Substances 0.000 description 2
- 238000003795 desorption Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 150000002894 organic compounds Chemical class 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000000274 adsorptive effect Effects 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000000693 micelle Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000011941 photocatalyst Substances 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000004227 thermal cracking Methods 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Treating Waste Gases (AREA)
Abstract
The invention provides an organic waste gas treatment equipment which comprises an inner cylinder and a tower body, wherein the lower part of the outer wall of the tower body is provided with a gas inlet; the top of the outer wall of the tower body is provided with an absorbent inlet and a clean gas outlet; the top of the inner wall of the tower body is welded with an external trumpet-shaped distributor; the inner cylinder is fixed on the wall of the tower body by stand bars and is kept concentric with the tower body; the upper part of the outer wall of the inner cylinder is provided with an internal trumpet-shaped distributor; two conduits are arranged between the internal distributor and the external distributor and used for connecting the internal distributor with the external distributor; the lower end of the internal distributor is circumferentially welded with supporting points on the outer wall of the inner cylinder by every 60 degrees; and the edge of each supporting point is 1.5 mm away from the outer wall of the inner cylinder. The invention has the outstanding advantage of resource saving, and can be popularized in the resource recycling treatment processes for waste gas and the like.
Description
Technical field
The present invention relates to a kind of chemical VOCs treatment field, be specifically related to a kind of organic waste gas treatment equipment.
Background technology
For a long time, people are devoted to the research of VOCs treatment technology always, the pollutant that contains in the dry waste gas in the chemical industry mainly is organic exhaust gas steam, as far back as nineteen twenty-five Europe just develop the fixed bed absorbent charcoal adsorber, Japan also brought into use this technology in 1958.Charcoal absorption is a kind of very classical, ripe method, can be used for administering the normal temperature organic exhaust gas of various concentration, but when processing low concentration, Wind Volume organic exhaust gas, equipment is huge, and is uneconomical.Up to the present, people research and develop out a series of fruitful control technologys.In these technology, domestic extensive employing and study more have heat damage method, absorption method, condensation method and absorption process.Also mainly adopt this several method abroad, heat damage method is wherein used more generally.For example, West Germany adopts direct firing method, and they act as a fuel with heavy oil, coal gas and natural gas.Japan biases toward active carbon adsorption when purifying lacquer spraying waste gas, bias toward Production by Catalytic Combustion Process when purifying oven dry waste gas.In European, Australia and Japanese, Production by Catalytic Combustion Process is most for paint industry.The heat damage method is that using at present relatively more extensive also is the more VOCs treatment method of research, particularly to low-concentration organic exhaust gas.Most important organic compound failure mechanism is oxidation and thermal cracking, thermal decomposition, and the heat damage method just is being based on this mechanism and is carrying out.The heat damage of organic compound can be divided into direct flame combustion and catalytic combustion.Absorption method is that opposite process is called desorption with the process of rejection to organics on the granular solids surface.Air pollution control engineering utilizes the circulation of the continuous adsorption and desorption of adsorbent just, remove the volatile organic matter in the waste gas, reclaim the useful constituent in the waste gas, make the long-term operation of adsorptive purifier energy, low concentration and the waste gas that has the higher position reason to require during absorption method is suitable for processing, the normal operation active carbon is as adsorbent.The absorption method shortcoming is that moisture is very large on the adsorption capacity impact of active carbon layer in the pending gas.When gas relative humidity surpasses 50%, the adsorption capacity of Active Carbon in Organic will descend greatly, and treatment facility is huge, and flow process is complicated, and adsorbent easily lost efficacy when micelle material or other impurity are arranged in the waste gas.Also be faced with in addition the economy of regenerating active carbon.Condensation method is by reducing the temperature of gas, organic matter being reached capacity condense from gas afterwards.Condensation process generally realizes by the method for constant voltage cooling.The height of clearance depends on organic boiling point and the dividing potential drop in waste gas, when gas concentration when 5000ppm is above, can reach more than 95%.The method generally for the treatment of concentration height and boiling point higher with purer organic exhaust gas because it is to the specific (special) requirements of temperature and pressure, process as prime so often this method and the methods such as absorption and sorption, burning are united use in the practical application.Absorption process is take liquid as absorbent, makes component in the waste gas by liquid absorption by the washing absorption device, thereby reaches the method for the purpose of purifying exhaust air.Along with the appearance of new material, new technology, several VOCs treatment new technologies have been developed again in recent years, such as biofiltration purification techniques, plasma technique, Photocatalyst, membrane separation technique etc.All there are various shortcoming and defect more or less in above-mentioned these methods and technology.
Summary of the invention
The present invention has overcome the deficiencies in the prior art, has proposed a kind of organic waste gas treatment equipment, and it can absorb organic matter in the waste gas, reaching the purpose that reduces environmental contaminants, and has that pressure drop is low, the outstanding advantages of energy savings.
Technical scheme of the present invention is: a kind of organic waste gas treatment equipment, comprise inner core and tower body,
Described tower body outer wall bottom is provided with a gas access, and tower body outer wall top is provided with an absorbent entrance and a clean gas outlet, and tower body inwall welded top has an outer distributor, described outer distributor flare shape;
Described inner core is fixed on the tower wall of described tower body by support bar, and keeps concentric with described tower body, and its outer wall top is provided with an interior distributor, described interior distributor flare shape;
Be provided with two conduits between described interior distributor and described outer distributor, and make it to be connected to each other.
Described interior distributor comprises interior distributor internal orifice and interior distributor collar extension, and described interior distributor internal orifice is less than interior distributor collar extension.
The opening's edge circumference is every 60 ° of outer wall weldering one strong points at described inner core in the described interior distributor, and the outer wall spacing of its edge and described inner core is 1.5mm.
Three strong points are established in the upper end of described interior distributor, are fixed on the inner tank theca.
The lower end edge circumference of described outer distributor is every 60 ° of inwall weldering one strong points at described tower body, and the inwall spacing of its edge and described tower body is 1.5mm.
Described gas access is rectangular opening, and to enter described tower body with the tangent direction of the outer wall of described inner core.
The inlet angle of described gas access and horizontal angle are 5 °.
The size of described gas access can be regulated.
After the described equipment of process absorbed, the absorptivity of organic exhaust gas was greater than 99%, and this is significant to the target that realizes the minimizing pollutant emission;
Equipment proposed by the invention satisfies industrial product process procedure design needs;
Equipment proposed by the invention has the advantage that the operation pressure drop is low, operating cost is little.The overall mass transfer coefficient correlation of organic steam in the clear water absorbing air that experimental data returns, its precision satisfies industrial production engineering design requirement;
Organic exhaust gas can be used as recycled solvent through behind the equipment proposed by the invention after the absorbed absorption liquid process subsequent technique flow process, makes dry waste gas workshop section reach the requirement of cleaner production.Realize environmental protection and resource-effective double goal, this is significant for reducing the industrial process energy consumption.
Description of drawings
Further specify the present invention below in conjunction with the drawings and specific embodiments.
Fig. 1 is the front view of organic waste gas treatment equipment of the present invention.
Fig. 2 is the top cross-sectional view of organic waste gas treatment equipment of the present invention.
Among the figure, 1. tower body, 2. inner core, 3. interior distributor, 4. outer distributor, 5. absorbent entrance, 6. clean gas outlet, 7. conduit, 8. support bar, 9. absorption liquid outlet, 10. gas access, 11. interior distributor internal orifices, 12. interior distributor collar extensions, 13. outer distributor collar extensions.
The specific embodiment
Further specify below in conjunction with accompanying drawing, and unrestricted scope involved in the present invention.
Referring to illustrated in figures 1 and 2, the present invention includes tower body 1 and inner core 2, organic exhaust gas enters the inside of tower body 1 by gas access 10, rises along tower body 1 spiral inner wall under centrifugal action, inner core 2 mainly is for the steady air flow direction, and the outer wall of inner core 2 also has certain absorption simultaneously.Absorbent is added through absorbent entrance 5 by the top of tower body 1, partially absorbs agent and is sprayed to the inwall of tower body 1 and along wall decline, partially absorbs agent distributor 3 in conduit 7 flows into through outer distributor 4, and descend along the outer wall of inner core 2.Organic exhaust gas contacts with the absorbent that descends along wall in the spiral uphill process, and solute is absorbed agent and absorbs the formation absorption liquid.Obtained purification through the organic exhaust gas after absorbing.Support bar 8 is inner core 2 and tower body 1 fixedly, and keeps it concentric.Interior distributor 3 flare shapes, and interior distributor internal orifice 11 is less than interior distributor collar extension 12, and interior distributor internal orifice 11 is 1.5mm with the outer wall spacing of described inner core 2.The inwall spacing of the described tower body 1 of the Edge Distance of outer distributor collar extension 13 is 1.5mm.
In the design to equipment, reach certain absorptivity in order to make it, absorptivity is gas through the ratio of amount with the amount of the absorbent that enters the absorption tower of the absorbed absorbent in absorption tower, that is: η=(Y
1-Y
2)/Y
1So, Y
2=(1-η)/Y
1
Wherein, Y
1Expression tower porch organic matter (as, ethanol) aerial mol ratio, Y
2The aerial mol ratio of expression tower exit organic matter.
Get an infinitesimal tower height, it highly is dz, and the gas-liquid contact area is dA, and according to mass balance, the transmission capacity dG of absorbent is between the interior gas-liquid of this infinitesimal section: dG=q
N, VDY=q
N, LDX.According to the absorption rate equation, the variable quantity of gas phase and liquid phase absorbent is respectively in this infinitesimal tower section of process: dG=NdA=K
Y(Y-Y
*) dA, the gas-liquid contact area of this infinitesimal tower section packing layer
dA＝πd·dz。
Thereby can calculate the height formula of equipment
Wherein, Z represents the effective depth of tower, and the m of unit, V represent the molar flow of air, the kmol/s of unit, K
YExpression gas phase total absorption coefficient, kmol/ (m
2S), D represents, the diameter of tower, the m of unit.And then can try to achieve other process conditions and the device parameter of equipment.
The size of gas access 10 can be regulated.
Discharge from clean gas outlet 6 after purification through the organic exhaust gas of equipment, formed absorption liquid flows out from absorption liquid outlet 9.In purification process, absorbent replenishes from absorbent entrance 5.
The present invention can be applied in the recycling treatment process of similar waste gas, for the exhaust-gas treatment that produces in chemical industry, the pharmaceutical manufacturing process is opened up new approach.
Claims (4)
1. an organic waste gas treatment equipment comprises inner core and tower body, it is characterized in that:
Described tower body outer wall bottom is provided with a gas access, and tower body outer wall top is provided with an absorbent entrance and a clean gas outlet, and tower body inwall welded top has an outer distributor, described outer distributor flare shape;
Described inner core is fixed on the tower wall of described tower body by support bar, and keeps concentric with described tower body, and its outer wall top is provided with an interior distributor, described interior distributor flare shape;
Be provided with two conduits between described interior distributor and described outer distributor, and make it to be connected to each other.
Described interior distributor comprises interior distributor internal orifice and interior distributor collar extension, and described interior distributor internal orifice is less than interior distributor collar extension; The opening's edge circumference is every 60 ° of outer wall weldering one strong points at described inner core in the described interior distributor, and the outer wall spacing of its edge and described inner core is 1.5mm;
Described interior distributor collar extension is established three strong points, is fixed on the inner tank theca;
The lower end edge circumference of described outer distributor is every 60 ° of inwall weldering one strong points at described tower body, and the inwall spacing of its edge and described tower body is 1.5mm.
2. organic waste gas treatment equipment according to claim 1, it is characterized in that: described gas access is rectangular opening, and to enter described tower body with the tangent direction of the outer wall of described inner core.
3. organic waste gas treatment equipment according to claim 1 and 2, it is characterized in that: the inlet angle of described gas access and horizontal angle are 5 °.
4. organic waste gas treatment equipment according to claim 3, it is characterized in that: the size of described gas access can be regulated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910256411.6A CN101732951B (en) | 2009-12-25 | 2009-12-25 | Organic waste gas treatment equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910256411.6A CN101732951B (en) | 2009-12-25 | 2009-12-25 | Organic waste gas treatment equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101732951A CN101732951A (en) | 2010-06-16 |
| CN101732951B true CN101732951B (en) | 2013-04-10 |
Family
ID=42457288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910256411.6A Expired - Fee Related CN101732951B (en) | 2009-12-25 | 2009-12-25 | Organic waste gas treatment equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101732951B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105999863B (en) * | 2016-07-22 | 2018-07-20 | 中国石油化工股份有限公司 | The exhaust gas purifying method of harmful influence containing liquid |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1369735A1 (en) * | 1985-12-04 | 1988-01-30 | Казанский Химико-Технологический Институт Им.С.М.Кирова | Arrangement for distributing liquid |
| CN1044599A (en) * | 1989-02-07 | 1990-08-15 | 宇部兴产株式会社 | Absorption column of gas |
| JP2000070653A (en) * | 1998-08-28 | 2000-03-07 | Yukimasa Yokomoto | Gas cleaning apparatus |
| CN2373168Y (en) * | 1999-05-13 | 2000-04-12 | 刘大生 | Repeated boiling-type flue gas cleaner |
| CN101239248A (en) * | 2007-11-22 | 2008-08-13 | 天津大学 | Liquid preliminary distribution device with gas distribution function |
| CN201235262Y (en) * | 2008-07-30 | 2009-05-13 | 何健康 | Waste gas multifunctional processor for sodium modification torrefaction vanadium-smelting process |
| CN101530720A (en) * | 2009-03-16 | 2009-09-16 | 宜兴市展宏环保设备有限公司 | Acid fog absorption tower |
| WO2009147247A1 (en) * | 2008-06-06 | 2009-12-10 | Basf Se | Column for bringing two fluids into contact |
-
2009
- 2009-12-25 CN CN200910256411.6A patent/CN101732951B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1369735A1 (en) * | 1985-12-04 | 1988-01-30 | Казанский Химико-Технологический Институт Им.С.М.Кирова | Arrangement for distributing liquid |
| CN1044599A (en) * | 1989-02-07 | 1990-08-15 | 宇部兴产株式会社 | Absorption column of gas |
| JP2000070653A (en) * | 1998-08-28 | 2000-03-07 | Yukimasa Yokomoto | Gas cleaning apparatus |
| CN2373168Y (en) * | 1999-05-13 | 2000-04-12 | 刘大生 | Repeated boiling-type flue gas cleaner |
| CN101239248A (en) * | 2007-11-22 | 2008-08-13 | 天津大学 | Liquid preliminary distribution device with gas distribution function |
| WO2009147247A1 (en) * | 2008-06-06 | 2009-12-10 | Basf Se | Column for bringing two fluids into contact |
| CN201235262Y (en) * | 2008-07-30 | 2009-05-13 | 何健康 | Waste gas multifunctional processor for sodium modification torrefaction vanadium-smelting process |
| CN101530720A (en) * | 2009-03-16 | 2009-09-16 | 宜兴市展宏环保设备有限公司 | Acid fog absorption tower |
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| Publication number | Publication date |
|---|---|
| CN101732951A (en) | 2010-06-16 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANDONG XINHUA PHARMACEUTICAL CO., LTD. Effective date: 20130502 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130502 Address after: 266061 Shandong Province, Qingdao city Laoshan District Songling Road No. 99 Patentee after: Qingdao University of Science & Technology Patentee after: Shandong Xinhua Pharmaceutical Co., Ltd. Address before: 266061 Shandong Province, Qingdao city Laoshan District Songling Road No. 69 Patentee before: Qingdao University of Science & Technology |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130410 Termination date: 20141225 |
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