CN205815458U - A kind of device removing removing and harmful gas - Google Patents
A kind of device removing removing and harmful gas Download PDFInfo
- Publication number
- CN205815458U CN205815458U CN201620394287.5U CN201620394287U CN205815458U CN 205815458 U CN205815458 U CN 205815458U CN 201620394287 U CN201620394287 U CN 201620394287U CN 205815458 U CN205815458 U CN 205815458U
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- tower
- gas
- sulphuric acid
- concentrated sulphuric
- absorption tower
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Abstract
A kind of device removing removing and harmful gas, particularly to removing alkene from air-flow, benzene homologues, the harmful gas such as heterocyclic compound and Carbon bisulfide, it is characterized in that being that described device is by condenser, dehumidifying tower, concentrated sulphuric acid absorption tower, solution absorption tower and blower fan form successively, its processing method is that described harmful gas is imported concentrated sulphuric acid absorption tower after dehumidifying, in absorber, harmful gas is absorbed with concentrated sulphuric acid generation chemical reaction, thus be removed from air-flow, reacted concentrated sulphuric acid absorbing liquid can reclaim by-product after processing further, there is removal efficiency high, operating cost is low, simple to operate, it is suitable for promoting the use of.
Description
Technical field
This utility model relates to a kind of device removing removing and harmful gas, particularly to go from air-flow alkene, benzene homologues and
The harmful gass such as Carbon bisulfide, belong to Air Pollution Control and environmental protection technical field.
Background technology
Various volatile organic matters such as alkene, aromatic hydrocarbons and the foul gas such as heterocyclic compound and Carbon bisulfide, result from
The various production processes such as chemistry, pharmacy, spraying and Sewage Disposal.These pollutant are not only harmful to human body, and some still causes
Cancer material, a large amount of discharges are gone back localized region environment and are created serious impact.But due to these gases or have chemistry knot
Structure is more stable, the most degradable feature, or threshold value is relatively low, brings the biggest difficulty to purified treatment.
Usually, the main method processing above-mentioned pollutant has solution absorption method, combustion method and absorption method etc..But due to
Harmful gas kind is many, and the parameter such as concentration and tolerance etc. is different, therefore, has respective limitation in application process.
Using aqueous solution absorption process is one of main method removing these harmful gass, and investment and operating cost are low, but the method
Subject matter is that absorptive capacity is limited, and the solution after absorption must process further, particularly to the least alkene of dissolubility, virtue
Hydrocarbon and the foul gas such as heterocyclic compound and Carbon bisulfide, do not reach the effect of removal.Service condition is required relatively by combustion method
Height, general requirement operates above at 600 DEG C, and investment and running cost expense are high.The absorption method pollutant removing efficiency to low concentration
Higher, but it is unable to reach the purpose of resolving harmful gas, adsorbent reactivation and aftertreatment systems are complicated.Therefore, for difference
Harmful gas find removal efficiency treatment technology high, reliable and simple to operate, be that related industrial process is badly in need of solving
Problem.
This utility model designs and provides a kind of device removing removing and harmful gas, for removing alkene, benzene from air-flow
It is the harmful gass such as thing, heterocyclic compound and Carbon bisulfide, thus reaches the purpose of cleaning harmful gas.
Summary of the invention
The technical solution of the utility model is: a kind of device removing removing and harmful gas, it is characterized in that by condenser, dehumidifying
Tower, concentrated sulphuric acid absorption tower, solution absorption tower and blower fan form successively, and the gas feed of described condenser connects containing of need to processing
The air-flow of evil gas, the gas outlet of described condenser connects with the gas feed of described dehumidifying tower, described concentrated sulphuric acid
The gas feed on absorption tower connects with the gas outlet of described dehumidifying tower, the gas outlet on described concentrated sulphuric acid absorption tower and institute
Stating the gas feed connection on solution absorption tower, the described gas outlet on solution absorption tower connects with the gas feed of blower fan.Described
Condenser have cooling medium import and export and removing water outlet, dehumidifying tower have solid dehumidifying agent to add entrance and outlet, dense sulfur
Acid absorption column has concentrated sulphuric acid to add entrance and leakage fluid dram, and solution absorption tower has aqueous solution to add entrance and outlet.
According to above-mentioned a kind of device removing removing and harmful gas, its processing method is through dehumidifying described harmful gas
Rear importing concentrated sulphuric acid absorption tower, in absorber, harmful gas is absorbed with concentrated sulphuric acid generation chemical reaction, thus from air-flow
In be removed, reacted absorbing liquid can reclaim by-product the most afterwards.
Concentrated sulphuric acid absorption tower described in the utility model can use general gas-liquid mass transfer (contact) equipment such as bubble tower, packed tower and
Plate columns etc., specifically can be referring to relevant chemical industry equipment handbook.Illustrating as a example by bubble tower, structure is generally cylindrical cross section, and material is
Acid resisting material, can use pottery and fiberglass etc..Pending gas imports bottom bubble tower, by gas distributor, through gas
After liquid reaction zone and concentrated sulphuric acid occur to absorb reaction, discharge on top.In bubble tower, the static liquid level of concentrated sulphuric acid is generally
More than 3cm, preferably 10-30cm.Gas-liquid contact time is generally more than 0.2s, the preferably 0.5-15 second, concrete visual harmful gas
The parameter such as kind and clearance sets, and time of contact is long, and clearance is high.Harmful gas concentration in the gas flow is tens to thousand of
Milligram/cube gas, the highest clearance is up to more than 95%.Concentrated sulphuric acid concentration is generally more than 60%, preferably 80-98%, dense
Spending the highest, assimilation effect is the best, and the removal efficiency of sulfuric acid concentration 60% is about about the 70% of sulfuric acid concentration 80%, sulphuric acid with have
The chemical reaction stoichiometric mole ratio of evil gas can calculate by 1: 1, and reaction temperature is generally room temperature, and suitably heating beneficially absorbs anti-
Should.
It is additionally provided with condenser and dehumidifying tower before concentrated sulphuric acid absorption tower described in the utility model, is used for removing in air-flow and contains
Moisture, make air-flow enter concentrated sulphuric acid absorption tower with less water capacity, to improve reaction effect and to extend soak time, the two
Can use, it is possible to selecting to use, the least assimilation effect to harmful gas of moisture content is the best, moisture content in air-flow simultaneously
General at 20g/m3Below it is preferred, specifically can calculate according to relevant air parameter.
Condenser typically uses medium condensation dehydration method, and medium condensation dehydration can use the direct or indirect type of cooling,
May be used without refrigerating plant cooling, gas flow temperature is the lowest, and the moisture removal amount in air is the biggest, typically the gas containing harmful gas
When body is cooled to less than 20 DEG C, the water capacity in air is at 20g/m3Hereinafter, the design about condenser specifically can be referring to relevant
Chemical industry equipment handbook.Dehumidifying tower is arranged after the condenser as the selection that dehumidifies further, typically uses calcium chloride, silica gel and molecule
The solid moisture absorbent absorption such as sieve remove the moisture in air-flow, and effect is suitable, but calcium chloride has absorption ammonia character, should avoid being used in
Containing ammonia or the dehumidifying of the gas of amine, when the gas containing nuisance being cooled to less than 0 DEG C such as condenser, in gas, water content is little
Time, can dehumidify tower.Dehumidifying tower is general adsorption tower, can use the form such as moving bed or ADSORPTION IN A FIXED BED.Concentrated sulphuric acid is inhaled
It is additionally provided with water or alkali liquor absorption device after receiving device, to remove, air-flow is taken sulfuric acid mist or other soluble gas products generated out of
Thing, it is possible to select regarding concrete condition.
Concentrated sulphuric acid absorption tower through absorb reacted absorbing liquid can after further treatment after reclaim by-product, generally can adopt
Reclaim with dilution regeneration, after the sulfuric acid concentration of the concentrated sulphuric acid absorbing liquid after absorbing toluene is diluted to about less than 20%, inhaling
Receiving liquid and be heated to more than about 80 DEG C, the product toluenesulfonic acid after toluene and strong sulfuric acid response is returned after can being re-converted into toluene
Receive.
Harmful gas described in the utility model is and the harmful gas of described strong sulfuric acid response, for following one or
More than one: alkene, benzene homologues, heterocyclic compound and Carbon bisulfide etc..
Compared with prior art, the utility model has the advantage of: this utility model uses air-flow dehumidifying dehydration with dense
Sulfuric acid absorption combines, and is particularly suitable for the harmful gass such as the alkene of poorly water-soluble, benzene homologues, heterocyclic compound and Carbon bisulfide
Remove, have that removal efficiency is high, operating cost is low, simple to operate, it is suitable for promoting the use of.
Accompanying drawing explanation
Fig. 1 is a kind of device schematic diagram removing removing and harmful gas used by this utility model embodiment.
Label in figure: 101 condensers；1 condenser-air import；2 condenser-air outlets；17 condenser removing water are discharged
Mouthful；18 cooling medium inlets；19 cooling medium outlets；102 dehumidifying towers；3 dehumidifying tower gas feeds；4 dehumidifying tower hygroscopic agents add
Mouthful；5 dehumidifying tower gas outlets；16 dehumidifying tower hygroscopic agent outlets；103 concentrated sulphuric acid absorption towers；6 concentrated sulphuric acid absorption tower gases enter
Mouthful；7 concentrated sulphuric acids add entrance；15 concentrated sulphuric acid absorbing liquid outlets；8 concentrated sulphuric acid absorption tower gas outlets；104 solution absorption towers；9 is molten
The gas feed of liquid absorption tower；10 solution absorption tower aqueous solution imports；11 solution absorption tower gas outlets；14 solution absorption towers absorb
Liquid outlet；105 blower fans；12 blower fan gas feeds；13 blower fan gas outlets.
Fig. 2 is the structural representation of bubble tower described in the utility model.
Label in figure: 1 gas feed；2 gas distributors；3 absorption tower tower bodies；4 demisters；5 gas outlets；6 concentrated sulphuric acids
Add entrance；7 concentrated sulphuric acid absorbing liquid outlets.
Detailed description of the invention
Below in conjunction with drawings and Examples, this utility model is described in further detail.
Embodiment 1: described in the utility model a kind of remove the device of removing and harmful gas as shown in Figure 1.Described condenser
(101) gas outlet (2) connects with dehumidifying tower gas feed (3) of described dehumidifying tower (102) bottom, on described dehumidifying tower
Dehumidifying tower gas outlet (5) in portion connects with the concentrated sulphuric acid absorption tower gas feed (6) of concentrated sulphuric acid absorption tower (103) bottom, institute
The concentrated sulphuric acid absorption tower gas outlet (8) on the top, concentrated sulphuric acid absorption tower stated absorbs with the solution of solution absorption tower (104) bottom
Tower gas feed (9) connects, the solution absorption tower gas outlet (11) on described top, solution absorption tower and blower fan (105) gas
Import (12) connects；Described condenser (101) also has condenser-air import (1), condenser removing water outlet (17), cooling
Medium entrance (18) and cooling medium outlet (19)；The top of described dehumidifying tower (102) has dehumidifying tower hygroscopic agent to add entrance (4),
Dehumidifying tower hygroscopic agent outlet (16) is arranged at bottom；The top of described concentrated sulphuric acid absorption tower (103) has concentrated sulphuric acid to add entrance (7), under
There is concentrated sulphuric acid absorbing liquid outlet (15) in portion；The aqueous solution import of solution absorption tower is arranged at the top of described solution absorption tower (104)
(10), solution absorption tower absorbing liquid outlet (14) is arranged at bottom.Use the bubble tower shown in Fig. 2 as concentrated sulphuric acid absorption tower.Adopt
During with the bubble tower shown in Fig. 2 as concentrated sulphuric acid absorption tower, the concentrated sulphuric acid absorption tower gas feed (6) described in Fig. 1, concentrated sulphuric acid add
Entrance (7), concentrated sulphuric acid absorbing liquid outlet (15) and concentrated sulphuric acid absorption tower gas outlet (8) enter with the gas shown in Fig. 2 respectively
It is identical with gas outlet (8) that mouthful (1), concentrated sulphuric acid add entrance (6), concentrated sulphuric acid absorbing liquid outlet (7).
Processing technological flow is as follows: first concentrated sulphuric acid used is added entrance (7) (Fig. 1) by concentrated sulphuric acid absorption tower concentrated sulphuric acid
Join in concentrated sulphuric acid absorption tower (103)；Dehumidifying tower (102) adds entrance (4) by dehumidifying tower hygroscopic agent and adds granule chlorination
Calcium dehumidizer；Then processed harmful gas by the processing means described in condenser-air import (1) importing, through supercool
Behind condenser, dehumidifying tower, concentrated sulphuric acid absorption tower and solution absorption tower, discharge through blower fan gas outlet (13).
The present embodiment uses about 0 DEG C of chilled brine to be that the shell and tube condenser of medium is to the moisture removing in air-flow, condensation
Device heat exchange area is about 0.5m2, the temperature of gas gas outlet after condenser is about 5 DEG C.Dehumidifying tower and solution absorb
The size of tower is Φ 60mm × 1000mm, and for polypropylene material, wherein dehumidifying tower uses the calcium chloride that diameter is about Φ 5mm
Grain packed bed, packed height is 500mm；Concentrated sulphuric acid bubble absorbing tower employing ceramic reactor, a size of Φ 200mm × 600mm,
Harmful gas imports from ceramic reactor bottom through gas distributor, and described gas distributor is porous plate, and aperture is about Φ
2mm, totally 30 uniform, the concentrated sulphuric acid of addition is high about 150mm above gas distributor, and demister is glass fibre material silk
Net；Solution absorption tower is clear water top spray, spray flux about 0.1m3/h。
Other operations control as follows:
Gas suction volume about 1.5m3/ h, concentrated sulphuric acid initial concentration 98%, processed gas temperature about 45 DEG C, containing harmful gas
The air-flow of body is air, gas relative humidity about 90%, detects after processing 1 hour.Analysis method: gas chromatograph.
Experimental result is as shown in table 1.
Table 1 harmful gas removal effect
Note: inlet concentration is gas concentration before condenser.When harmful gas is aniline, dehumidifying tower is void tower, is not filled with chlorine
Change calcium.
Embodiment 2: gas suction volume about 3m3/ h, concentrated sulphuric acid initial concentration 80%.Other conditions are with embodiment 1.
Experimental result is as shown in table 2.
Table 2 harmful gas removal effect
Note: inlet concentration is gas concentration before condenser.When harmful gas is aniline, dehumidifying tower is void tower, is not filled with chlorine
Change calcium.
Embodiment 3: in absorbing the concentrated sulphuric acid absorbing liquid after toluene about 100ml puts into distilling flask described in Example 1,
Then solution sulfuric acid concentration is diluted to about about 15%, and absorbing liquid is heated to about 80-90 DEG C distillation, can be returned by condensation
Receive toluene.
Should be noted that above example is merely to illustrate the technical solution of the utility model, guarantor of the present utility model
The scope of protecting is not limited to this.For a person skilled in the art, all within spirit of the present utility model and principle, to each reality
Execute the technical scheme described in example to modify, or portion of techniques feature therein is carried out any equivalent, revises, become
Change and improvement etc., within should be included in protection domain of the present utility model.
Claims (5)
1. the device removing removing and harmful gas, it is characterised in that described device is absorbed by condenser, dehumidifying tower, concentrated sulphuric acid
Tower, solution absorption tower and blower fan form successively, and the gas feed of described condenser connects the processed air-flow containing harmful gas,
The gas outlet of described condenser connects with the gas feed of described dehumidifying tower, and the gas on described concentrated sulphuric acid absorption tower enters
Mouth connects with the gas outlet of described dehumidifying tower, the gas outlet on described concentrated sulphuric acid absorption tower and described solution absorption tower
Gas feed connection, the described gas outlet on solution absorption tower connects with the gas feed of blower fan, and described condenser has
Cooling medium is imported and exported and removing water outlet, and dehumidifying tower has solid dehumidifying agent to add entrance and outlet, and concentrated sulphuric acid absorption tower has
Concentrated sulphuric acid adds entrance and leakage fluid dram, and solution absorption tower has aqueous solution to add entrance and outlet.
Device the most according to claim 1, it is characterised in that described concentrated sulphuric acid absorption tower uses general gas-liquid mass transfer
Equipment bubble tower, packed tower or plate column.
Device the most according to claim 2, it is characterised in that described bubble tower bottom is provided with gas distributor, top
It is provided with demister.
Device the most according to claim 1, it is characterised in that described dehumidifying tower uses solid calcium chloride, silica gel or molecule
Sieve is as dehumidizer.
Device the most according to claim 1, its feature uses cooling medium directly or indirectly to cool down at described condenser
Mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620394287.5U CN205815458U (en) | 2016-05-03 | 2016-05-03 | A kind of device removing removing and harmful gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620394287.5U CN205815458U (en) | 2016-05-03 | 2016-05-03 | A kind of device removing removing and harmful gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205815458U true CN205815458U (en) | 2016-12-21 |
Family
ID=58148452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620394287.5U Expired - Fee Related CN205815458U (en) | 2016-05-03 | 2016-05-03 | A kind of device removing removing and harmful gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205815458U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105817133A (en) * | 2016-05-03 | 2016-08-03 | 黄立维 | Device for removing harmful gases and treatment method |
-
2016
- 2016-05-03 CN CN201620394287.5U patent/CN205815458U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105817133A (en) * | 2016-05-03 | 2016-08-03 | 黄立维 | Device for removing harmful gases and treatment method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161221 Termination date: 20200503 |