CN105771540A - Improved organic waste gas adsorption tower - Google Patents
Improved organic waste gas adsorption tower Download PDFInfo
- Publication number
- CN105771540A CN105771540A CN201610197434.4A CN201610197434A CN105771540A CN 105771540 A CN105771540 A CN 105771540A CN 201610197434 A CN201610197434 A CN 201610197434A CN 105771540 A CN105771540 A CN 105771540A
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- Prior art keywords
- adsorption tower
- adsorbent
- exhaust gas
- tower
- organic exhaust
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—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
- B01D53/04—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 stationary adsorbents
-
- 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
- B01D53/04—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 stationary adsorbents
- B01D53/0407—Constructional details of adsorbing systems
- B01D53/0446—Means for feeding or distributing gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/708—Volatile organic compounds V.O.C.'s
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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
- B01D2259/40086—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by using a purge gas
Abstract
The invention aims at providing a novel optimized organic waste gas adsorption tower, aiming at solving the problem that an adsorption tower cannot realize normal standing time when the flow rate of organic waste gas is excessively high and the superficial velocity is high, and discloses an improved adsorption tower in which a gas is introduced from the middle of the bottom of a vertical type adsorption tower. According to the improved adsorption tower, an existing adsorption tower is optimized, under a condition of high flow rate, the tower diameter of the adsorption tower is reduced, the adsorption tower can be manufactured, transported and installed conveniently, the occupied area of the adsorption tower is reduced and the cost is saved.
Description
Technical field
The present invention relates to organic exhaust gas recovery technology field, refer in particular to the various organic exhaust gas (VOCs) such as oil gas and adsorb in removal process, utilize a kind of modified model organic exhaust gas adsorption tower to replace tradition organic exhaust gas adsorption tower.
Background technology
Along with organic synthesis industry and the developing rapidly of petrochemical industry, the various fields such as oil, chemical industry, coating, traffic, electronics are when producing, selling and uying various oil product, petrochemicals, often give off a large amount of volatile organic matter (VOCs), mainly include alkanes, alcohols, ethers, aromatic hydrocarbons, aldehydes, esters and organic halogen system derivant etc..The living environment of the existence of these organic exhaust gas not only severe exacerbation people, works the mischief to health and ecological environment, but also can bring the serious wasting of resources and potential safety hazard.In recent years, along with the increasingly stringent to exhaust of oil standard domestic, international, the recycling of organic exhaust gas is increasingly subject to the attention of countries in the world, and their Environmental capacity is always up the emphasis problem that environmental worker studies.Absorption method is exactly common a kind of recovery method.
The processing method at present these organic exhaust gas adopted has absorption method, absorption process, condensation method, membrane separation process, combustion method or several method combination etc..Wherein absorption method processes organic exhaust gas and can obtain good clean-up effect, is therefore widely used.
Domestic and foreign databases is retrieved according to the technology of the present invention feature.Discovery at home and abroad adopts absorption method reclaim the patent of organic exhaust gas and report more, but there is not yet the adsorption tower report from the middle air inlet of vertical adsorption tower published.
Summary of the invention
It is an object of the present invention to provide the organic exhaust gas adsorption tower of a kind of novel optimization, when, superficial linear velocity in a column excessive for organic exhaust gas flow is bigger, the problem that adsorption tower is difficult to meet the normal time of staying, it is proposed that a kind of modified model adsorption tower from air inlet middle at the bottom of vertical adsorption tower.This modified model adsorption tower optimizes existing adsorption tower, when meeting big flow, reduces the tower diameter of adsorption tower, it is simple to the manufacture of adsorption tower, transport and installation, decreases adsorption tower floor space, the cost of saving.
The technical scheme is that
The follow-on organic exhaust gas adsorption tower of described one includes: adsorption tower top cover, adsorption tower main body and adsorption tower bottom, is bolted between them；Adsorption tower top cover is provided with upper air vent, adsorbent import, pressure transducer；Be provided with organic exhaust gas air inlet in the middle part of adsorption tower main body, adsorption tower lower body part is provided with adsorbent outlet, also arranges several temperature sensors along adsorption tower short transverse, and adsorption tower air inlet place (inside tower) is provided with drop-leg；A lower exhaust port and pressure transducer are set up in adsorption tower bottom bottom.
Further, described adsorption tower structure is characterised by that its tower diameter is 1～3m, and the diameter of adsorbent import, adsorbent outlet and 2 air vents is 0.5～0.8m, and organic exhaust gas air inlet diameter is 0.8～1m.
Further, described organic exhaust gas air inlet is located in adsorption tower main body from the position of 0.4H～0.48H (H is adsorption tower tower wall height) above at the bottom of adsorption tower wall.
Further, described adsorption tower internal gas isocon, its diameter is 1.2～1.25 times of adsorption tower air inlet diameter, and length is 0.7～0.85 times of adsorption tower diameter.By arranging drop-leg, make organic exhaust gas carry out gas dispersion flow from the flowing of upper and lower two parts after entering tower, make adsorption tower superficial linear velocity in a column control at 0.1～0.5m/s.Weld with angle steel between this drop-leg with adsorption tower wall, with some roads channel steel support in length and breadth bottom it, to carry the weight of the adsorbent of drop-leg and top thereof.Having aperture (including side) on this drop-leg, total percent opening is 5-7 times of adsorption tower air inlet area, and the aperture of its uniform pore openings is 8～10mm.Firmly being wrapped in 2 layers of stainless steel cloth again at gas distribution tube outer surface, in case adsorbent leaks in drop-leg, the aperture of stainless steel cloth is (0.2～0.6) d (d is adsorbent particle diameter).
Further, the bottom of described adsorption tower, one layer of adsorbent supporting layer is arranged from 0.3～0.5m place at the bottom of adsorption tower tower wall.This adsorbent supporting layer is made up of some roads channel-section steel in length and breadth, porous stainless steel plate, stainless steel cloth.Channel-section steel and adsorption tower tower wall weld, to carry the weight of the adsorbent on top.Weld one layer of porous stainless steel plate on the top of channel-section steel, its total percent opening is 4-6 times of adsorption tower air inlet area, and the aperture of its uniform pore openings is 8～10mm.Then being firmly wrapped in 2 layers of stainless steel cloth again on this porous stainless steel plate top, in case adsorbent drains to bottom adsorption tower, the aperture of stainless steel cloth is (0.2～0.6) d (d is adsorbent particle diameter).
Further, described adsorption tower, its upper and lower air vent pipeline is provided with a nitrogen blow valve port after converging on gathering tube, and its pipeline diameter is 0.025～0.05m；Gathering tube diameter is identical with the organic exhaust gas air inlet caliber in the middle part of adsorption tower.
Having the advantages of of described a kind of follow-on organic exhaust gas adsorption tower:
(1) present invention adopts the adsorption tower of special construction, it is about to conventional adsorption tower air inlet be located at bottom and change into and be located in the middle part of adsorption tower, and on adsorption tower, bottom is provided with two air vents, inlet air flow is made to be divided into, lower two plumes, when ensureing suitable superficial linear velocity in a column, solve organic exhaust gas flow excessive time, conventional adsorption tower needs to increase the technical problem of tower diameter, thus both having met the time of staying that organic exhaust gas is suitable in tower, reduce again the tower diameter of adsorption tower, it is easy to the manufacture of adsorption tower, transport and installation, decrease adsorption tower floor space, provide cost savings.
(2) after the upper and lower air vent pipeline of the adsorption tower of the present invention converges, being additionally provided with a nitrogen blow valve port, nitrogen during for adsorbent desorbing back segment purges, to realize the degree of depth desorbing of adsorbent, highly efficient regeneration, recycling.
Accompanying drawing explanation
Fig. 1 is a kind of follow-on organic exhaust gas adsorption tower of the present invention.
Accompanying drawing labelling lists as follows:
1 adsorbent import, 2,18 pressure transducers, 3 upper air vents, 4,5,20,22 electromagnetic valve, 6 nitrogen blow valve ports, 7 gathering tubes, 8 adsorption tower top covers, 9 adsorption tower main bodys, 10,15 temperature sensors, 11,16 stainless steel cloth, 12 organic exhaust gas air inlets, 13 drop-legs, 14 adsorbent outlet, 17 adsorption tower bottoms, 19 lower exhaust port, 21 standby mouths
Fig. 2 is A-A place top view and B place adsorbent supporting layer enlarged drawing.
Accompanying drawing labelling lists as follows:
9 adsorption tower main bodys, 11,16 stainless steel cloths, 13 drop-legs, 23,25 channel-section steels, 24 porous stainless steel plates
Detailed description of the invention
Illustrate this patent by the examples below, but the present invention be not limited by the example:
Carrying out throughput when scene is 20000m3During/h, superficial linear velocity in a column takes 0.4m/s, and the diameter of adsorption tower is about 4.2m traditionally, and when this waste gas being carried out absorption recycling by the modified model organic exhaust gas adsorption tower of the present invention, the diameter of adsorption tower only needs 3m.
The follow-on organic exhaust gas adsorption tower of described one includes: adsorption tower top cover (8), adsorption tower main body (9) and adsorption tower bottom (17), is bolted between them；Adsorption tower top cover (8) is provided with upper air vent (3), adsorbent import (1), pressure transducer (2)；Adsorption tower main body (9) middle part is provided with organic exhaust gas air inlet (12), adsorption tower main body (9) bottom is provided with adsorbent outlet (14), also arranging several temperature sensors (10,15) along adsorption tower short transverse, adsorption tower air inlet place (inside tower) is provided with drop-leg (13)；A lower exhaust port (19) and pressure transducer (18) are set up in adsorption tower bottom (17) bottom.
Further, described adsorption tower structure is characterised by that its tower diameter is 3m, the diameter of adsorbent import (1), adsorbent outlet (14) and 2 air vents (3,19) is 0.8m, and organic exhaust gas air inlet (12) diameter is 1m.
Further, described organic exhaust gas air inlet (12) is located in adsorption tower main body (9) from the position of 0.42H (H is adsorption tower tower wall height) above at the bottom of adsorption tower wall.
Further, described adsorption tower internal gas isocon (13), its diameter is 1.6m, and length is 2.1m.By arranging drop-leg (13), organic exhaust gas is made to carry out gas dispersion flow from the flowing of upper and lower two parts after entering tower.Weld with angle steel between this drop-leg (13) and adsorption tower wall, support with some roads channel-section steel in length and breadth (23) bottom it, to carry the weight of the adsorbent of drop-leg (13) and top thereof.Having aperture (including side) on this drop-leg (13), total percent opening is 6 times of adsorption tower air inlet area, and the aperture of its uniform pore openings is 8mm.Firmly being wrapped in 2 layers of stainless steel cloth (11) again at drop-leg (13) outer surface, in case adsorbent leaks in drop-leg (13), the aperture of stainless steel cloth (11) is 0.5mm.
Further, one layer of adsorbent supporting layer is arranged from 0.5m place at the bottom of adsorption tower tower wall in the bottom of described adsorption tower.This adsorbent supporting layer is made up of some roads channel-section steel in length and breadth (25), porous stainless steel plate (24), stainless steel cloth (16).Channel-section steel (25) and adsorption tower tower wall weld, to carry the weight of the adsorbent on top.Weld one layer of porous stainless steel plate (24) on the top of channel-section steel (25), total percent opening is 5.5 times of adsorption tower air inlet area, and the aperture of its uniform pore openings is 10mm.Then being firmly wrapped in 2 layers of stainless steel cloth (16) again on this porous stainless steel plate (24) top, in case adsorbent drains to bottom adsorption tower, the aperture of stainless steel cloth (16) is 0.5mm.
Further, described adsorption tower, after its upper and lower air vent pipeline converges, gathering tube (7) is provided with a nitrogen blow valve port (6), its pipeline diameter is 0.05m；Gathering tube diameter takes 1m.
Claims (6)
1. a modified model organic exhaust gas adsorption tower, is characterized in that: includes adsorption tower top cover (8), adsorption tower main body (9) and adsorption tower bottom (17), is bolted between them；Adsorption tower top cover (8) is provided with upper air vent (3), adsorbent import (1), pressure transducer (2)；Adsorption tower main body (9) middle part is provided with organic exhaust gas air inlet (12), adsorption tower main body (9) bottom is provided with adsorbent outlet (14), also arranging several temperature sensors (10,15) along adsorption tower short transverse, adsorption tower air inlet place (inside tower) is provided with drop-leg (13)；A lower exhaust port (19) and pressure transducer (18) are set up in adsorption tower bottom (17) bottom.
2. a kind of modified model organic exhaust gas adsorption tower as claimed in claim 1, it is characterized in that: its tower diameter is 1～3m, the diameter of adsorbent import (1), adsorbent outlet (14) and 2 air vents (3,19) is 0.5～0.8m, and organic exhaust gas air inlet (12) diameter is 0.8～1m.
3. modified model organic exhaust gas adsorption tower as claimed in claim 1 a kind of, is characterized in that: organic exhaust gas air inlet (12) is located in adsorption tower main body (9) from the position of 0.4H～0.48H (H is adsorption tower tower wall height) above at the bottom of adsorption tower wall.
4. a kind of modified model organic exhaust gas adsorption tower as claimed in claim 1, is characterized in that: adsorption tower internal gas isocon (13), and its diameter is 1.2～1.25 times of adsorption tower air inlet diameter, and length is 0.6～0.85 times of adsorption tower diameter；By arranging drop-leg (13), make organic exhaust gas carry out gas dispersion flow from the flowing of upper and lower two parts after entering tower, make adsorption tower superficial linear velocity in a column control at 0.1～0.5m/s；Weld with angle steel between this drop-leg (13) and adsorption tower wall, support with some roads channel-section steel in length and breadth (23) bottom it, to carry the weight of the adsorbent of drop-leg (13) and top thereof；Having aperture (including side) on this drop-leg (13), total percent opening is 5-7 times of adsorption tower air inlet (12) area, and the aperture of its uniform pore openings is 8～10mm；2 layers of stainless steel cloth (11) firmly it are wrapped in again at drop-leg (13) outer surface, in case adsorbent leaks in drop-leg (13), the aperture of stainless steel cloth (11) is (0.2～0.6) d (d is adsorbent particle diameter).
5. modified model organic exhaust gas adsorption tower as claimed in claim 1 a kind of, is characterized in that: the bottom of adsorption tower, from layout one layer of adsorbent supporting layer in 0.3～0.5m place at the bottom of adsorption tower tower wall；This adsorbent supporting layer is made up of some roads channel-section steel in length and breadth (25), porous stainless steel plate (24), stainless steel cloth (16)；Channel-section steel (25) and adsorption tower tower wall weld, to carry the weight of the adsorbent on top；Weld one layer of porous stainless steel plate (24) on the top of channel-section steel (25), its total percent opening is 4-6 times of adsorption tower air inlet (12) area, and the aperture of its uniform pore openings is 8～10mm；Then 2 layers of stainless steel cloth (16) firmly it are wrapped in again on this porous stainless steel plate (24) top, in case adsorbent drains to bottom adsorption tower, the aperture of stainless steel cloth (16) is (0.2～0.6) d (d is adsorbent particle diameter).
6. a kind of modified model organic exhaust gas adsorption tower as claimed in claim 1, is characterized in that: after upper and lower air vent pipeline converges, and being provided with a nitrogen blow valve port (6) on gathering tube (7), its pipeline diameter is 0.025～0.05m；Gathering tube diameter is identical with the organic exhaust gas air inlet caliber in the middle part of adsorption tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610197434.4A CN105771540A (en) | 2016-03-31 | 2016-03-31 | Improved organic waste gas adsorption tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610197434.4A CN105771540A (en) | 2016-03-31 | 2016-03-31 | Improved organic waste gas adsorption tower |
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| CN105771540A true CN105771540A (en) | 2016-07-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610197434.4A Pending CN105771540A (en) | 2016-03-31 | 2016-03-31 | Improved organic waste gas adsorption tower |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0509638A1 (en) * | 1991-04-16 | 1992-10-21 | The BOC Group plc | Improved apparatus for the separation of a gaseous mixture |
| CN201644098U (en) * | 2010-03-17 | 2010-11-24 | 西原环保工程(上海)有限公司 | Active carbon deodorization device |
| CN201823435U (en) * | 2010-09-14 | 2011-05-11 | 杭州聚科空分设备制造有限公司 | Middle pressure equalizing type absorption tower |
-
2016
- 2016-03-31 CN CN201610197434.4A patent/CN105771540A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0509638A1 (en) * | 1991-04-16 | 1992-10-21 | The BOC Group plc | Improved apparatus for the separation of a gaseous mixture |
| CN201644098U (en) * | 2010-03-17 | 2010-11-24 | 西原环保工程(上海)有限公司 | Active carbon deodorization device |
| CN201823435U (en) * | 2010-09-14 | 2011-05-11 | 杭州聚科空分设备制造有限公司 | Middle pressure equalizing type absorption tower |
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Application publication date: 20160720 |