CN202270473U - Carbon black tail gas desulfurization device - Google Patents
Carbon black tail gas desulfurization device Download PDFInfo
- Publication number
- CN202270473U CN202270473U CN2011203806505U CN201120380650U CN202270473U CN 202270473 U CN202270473 U CN 202270473U CN 2011203806505 U CN2011203806505 U CN 2011203806505U CN 201120380650 U CN201120380650 U CN 201120380650U CN 202270473 U CN202270473 U CN 202270473U
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- CN
- China
- Prior art keywords
- tail gas
- carbon black
- aeration tower
- demister
- desulfurizing agent
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Abstract
The utility model relates to a carbon black tail gas desulfurization device. The desulfurization device comprises a flue gas desulfurization system, a desulfurization agent recycle system and a desulfurization agent preparation system, wherein the flue gas desulfurization system comprises a scrubber tower, a heat exchanger and a gas-water separator; the desulfurization agent recycle system comprises a recycle tank; the desulfurization agent preparation system comprises a preparation groove; the absorption liquid outlet of the scrubber tower is connected with the recycle tank; the recycle tank is connected with the preparation groove through a pump; and the recycle tank is connected to a desulfurization agent spraying device through the pump. The desulfurization device provided by the utility model can be used for removing sulfur in carbon black tail gas before the carbon black tail gas enters into a burning boiler and is high in removal rate, thereby avoiding the corrosion of sulfur in the tail gas on the burning boiler, equipment, a pipeline and a chimney; and after burning, the discharged tail gas reaches the discharge level of national pollutants.
Description
Technical field
The utility model relates to a kind of carbon black tail gas hydrogen sulfide stripping device, is applicable to the improvement of discharging tail gas in the carbon black process.
Background technology
From 1985 to 2005 two during the decade, Chinese carbon black output increases to 1,610,000 tons by producing 230000 tons per year, has promptly increased by 7 times.Calendar year 2001 surpasses Japan to produce 690000 tons of outputs of carbon black per year, becomes the second-biggest-in-the-world production of carbon black state after the U.S..
The heavy of environmental protection task it serves to show in two liftings of the carbon black output of China during the decade! Over past ten years, quality management system ISO 9001:2000 is carrying out in most carbon black enterprise, and large enterprise is implementing EMS ISO 14001:2000.Having formed gradually is the environmental protection concept of the interactive cleaning factory of production management and the environmental management of core with the environmental project.The a collection of carbon black of having grown up cleans factory, has driven the environmental protection work of the whole industry with exemplary role.Aspect environmental project, made brilliant achievements.
Along with the attention of country, particularly to SO for environmental protection
2The control of discharge capacity, the carbon black tail gas desulfurization becomes a requisite task.Sulphur in the carbon black tail gas derives from carbon black with oil.Because the Chinese coal supply, begin some sulphur coal and get into coke oven, produced the situation that sulfur content in the flue gas of gas fume after burning, degassing bag filter surpasses the limit of national environmental standard, this must handle.Water film type flue gas desulfurization technique device is generally adopted in flue gas desulfurization.This method is the flue gas desulfurization after carbon black tail gas gets into boiler combustion, and desulfuration efficiency is high.But this method is more serious to the corrosion of equipment, pipeline and chimney, and particularly sulfur-bearing tail gas is very serious to the corrosion of burning boiler, must perform preservative treatment, notes the safety of discharging chimney simultaneously.
The utility model content
It is a kind of before carbon black tail gas gets into burning boiler that the technical problem that the utility model solved is to provide; The device that sulphur in the tail gas is removed; Avoided the corrosion of the sulphur in the tail gas to burning boiler, equipment, pipeline and chimney, burning back discharge tail gas reaches national pollutant emission level.
A kind of carbon black tail gas desulfurizer, it comprises flue gas desulphurization system, the desulfurizing agent circulatory system and desulfurizing agent preparation system, described flue gas desulphurization system comprises aeration tower, heat exchanger and steam-water separator; The aeration tower bottom is provided with gas inlet; The aeration tower bottom is provided with the absorption liquid outlet, and the aeration tower top is provided with the tail gas outlet, and the aeration tower gas inlet connects heat exchanger; The outlet of aeration tower tail gas connects the steam-water separator inlet; The steam-water separator outlet connects heat exchanger, and aeration tower tower body top is equipped with demister, and the demister below is provided with the desulfurizing agent spray equipment; The described desulfurizing agent circulatory system comprises circulatory pool, and described desulfurizing agent preparation system comprises preparation vessel, and the outlet of aeration tower absorption liquid connects circulatory pool, and circulatory pool is connected through pump with preparation vessel, and circulatory pool is connected to the desulfurizing agent spray equipment through pump.
The aeration tower of the utility model can be selected rotating stream tray scrubber or packed tower for use, correspondingly, is provided with eddy flow plate or filler in the tower.Preferably, described aeration tower is a rotating stream tray scrubber.
Preferably, described aeration tower is a packed tower.
Preferably, described aeration tower top also is provided with water spray system, and water spray system is between demister and desulfurizing agent spray equipment.
Preferably, described demister is board-like demister.
Preferably, described demister is a net formula demister.
Preferably, described demister is the filler demister.
The desulfurizing agent main component of the utility model is: Na
2CO
3, analyse sulfur catalyst, oxygen carrier catalyst, its device operation principle is:
(1) absorbs H with soda ash solution
2S, H
2S transfers to liquid phase from gas phase;
(2) liquid phase H
2S ionization generates H
+And HS
-Through calculating ［ H in some solution of pH value 8～9
2S ］, ［ H
+, ［ HS
-As shown in table 1:
［ H in table 1 pH value and the solution
2
S ］, ［ H
+
, ［ HS
-
Numerical value
| The pH value | ［H 2S］ | ［HS －］ | ［H ＋］ |
| 8 | 9.09 | 90.91 | 0 |
| 9 | 0.99 | 99 | 0 |
It is thus clear that the main existence form of the sulphur in the conventional doctor solution (pH value 8.5～9.2) is HS
-
(3) with analysing sulfur catalyst oxidation HS
-Generate elemental sulfur, catalyst is become by oxidation state to be gone back ortho states and loses oxidability;
(4) utilize the oxygen carrier catalyst oxidation to analyse sulfur catalyst and make it obtain regeneration, the oxygen carrier catalyst is become by oxidation state to be gone back ortho states and loses activity;
(5) utilize airborne dioxygen oxidation oxygen carrier catalyst to make it become oxidation state acquisition regeneration by going back ortho states;
(6) elemental sulfur that generates is separated by air flotation in the process of dioxygen oxidation oxygen carrier catalyst, and the sulphur foam is processed into sulphur through centrifuge.
The desulfurizer of the utility model is before carbon black tail gas gets into burning boiler; Sulphur in the carbon black tail gas removes; Removal efficiency is high, has avoided the corrosion of the sulphur in the tail gas to burning boiler, equipment, pipeline and chimney, and burning back discharge tail gas reaches national pollutant emission level.
Description of drawings
Fig. 1 is the structural representation of the utility model carbon black tail gas desulfurizer.
Among the figure: 1-fresh water (FW), 2-steam, 3-compressed air, 4-desulfurizing agent raw material, 5-preparation vessel; The 6-pump, 7-circulatory pool, 8-pump, 9-aeration tower, 10-steam-water separator; The 11-heat exchanger, the 12-booster fan, 13-goes boiler combustion, 14-desulfurizing agent spray equipment; The 15-demister, 16-water spray system, the last filler of 17-, filler under the 18-.
The specific embodiment
Through accompanying drawing and embodiment the technical scheme of the utility model is done further below and described in detail, but the protection domain of the utility model is not limited to this.
With reference to Fig. 1, a kind of carbon black tail gas desulfurizer, it comprises flue gas desulphurization system, the desulfurizing agent circulatory system and desulfurizing agent preparation system; Described flue gas desulphurization system comprises aeration tower 9, heat exchanger 11 and steam-water separator 10; Aeration tower 9 bottoms are provided with gas inlet, and aeration tower 9 bottoms are provided with the absorption liquid outlet, and aeration tower 9 tops are provided with the tail gas outlet; Aeration tower 9 gas inlets connect heat exchanger 11; The outlet of aeration tower 9 tail gas connects steam-water separator 10 inlets, and steam-water separator 10 outlets connect heat exchanger 11, and aeration tower 9 tower body tops are equipped with net formula demister 15.Described aeration tower 9 adopts packed tower; Be provided with filler 17 and following filler 18, last filler 17 tops are provided with water spray system 16, are provided with desulfurizing agent spray equipment 14 between last filler 17 and the following filler 18; Water spray system 16 is positioned at demister 15 belows, and water spray system 16 connects fresh water (FW) 1.
The described desulfurizing agent circulatory system comprises circulatory pool 7, and described desulfurizing agent preparation system comprises preparation vessel 5, and the outlet of aeration tower 9 absorption liquids connects circulatory pool 7, and circulatory pool 7 is connected through pump 6 with preparation vessel 5, and circulatory pool 7 is connected to desulfurizing agent spray equipment 14 through pump 8.
The utility model prepares desulfurizing agent in preparation vessel 5, preparation vessel 5 is optionally introduced fresh water (FW) 1, steam 2, compressed air 3 and desulfurizing agent raw material 4.The desulfurizing agent suggestion of adopting is Na
2CO
3, add simultaneously and analyse sulfur catalyst and oxygen carrier catalyst.The solution ratio of desulfurizing agent is by H in inlet tower gas amount, the gas
2The gas purification degree of S content, requirement, solution internal circulating load etc. are confirmed.During usually with soda ash configuration desulfuration solution, total alkalinity is that 0.4～0.6N is (with Na
2CO
3Meter), pH value of solution 8.5～9.2.
The desulfurizing agent for preparing gets into circulatory pool by preparation vessel, is squeezed into the top of aeration tower by pump 8; Carbon black tail gas is delivered to heat exchanger 11 by blower fan 12, carries out heat exchange with tail gas after absorbing, and temperature descends, and is got into the abundant haptoreaction of gas-liquid on the filler of aeration tower 9, H by aeration tower 9 bottoms through the carbon black tail gas of heat exchange
2S gets into liquid.Tail gas after the absorption removes part steam through demister 15, goes out from aeration tower 9 tops, further removes steam at steam-water separator 10, through heat exchanger 11 heat exchange, gets into boiler combustion 13 after temperature rises.
Absorption liquid enters into circulatory pool by the absorption liquid outlet of aeration tower 9 bottoms, generates elemental sulfur through follow-up further reaction again, from system, removes.
Claims (7)
1. carbon black tail gas desulfurizer, it is characterized in that: it comprises flue gas desulphurization system, the desulfurizing agent circulatory system and desulfurizing agent preparation system, and described flue gas desulphurization system comprises aeration tower, heat exchanger and steam-water separator; The aeration tower bottom is provided with gas inlet; The aeration tower bottom is provided with the absorption liquid outlet, and the aeration tower top is provided with the tail gas outlet, and the aeration tower gas inlet connects heat exchanger; The outlet of aeration tower tail gas connects the steam-water separator inlet; The steam-water separator outlet connects heat exchanger, and aeration tower tower body top is equipped with demister, and the demister below is provided with the desulfurizing agent spray equipment; The described desulfurizing agent circulatory system comprises circulatory pool, and described desulfurizing agent preparation system comprises preparation vessel, and the outlet of aeration tower absorption liquid connects circulatory pool, and circulatory pool is connected through pump with preparation vessel, and circulatory pool is connected to the desulfurizing agent spray equipment through pump.
2. carbon black tail gas desulfurizer according to claim 1 is characterized in that: described aeration tower is a rotating stream tray scrubber.
3. according to the carbon black tail gas desulfurizer of claim 1, it is characterized in that: described aeration tower is a packed tower.
4. according to the carbon black tail gas desulfurizer of claim 1, it is characterized in that: described aeration tower top also is provided with water spray system, and water spray system is between demister and desulfurizing agent spray equipment.
5. according to the carbon black tail gas desulfurizer of claim 1, it is characterized in that: described demister is board-like demister.
6. according to the carbon black tail gas desulfurizer of claim 1, it is characterized in that: described demister is a net formula demister.
7. according to the carbon black tail gas desulfurizer of claim 1, it is characterized in that: described demister is the filler demister.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203806505U CN202270473U (en) | 2011-10-10 | 2011-10-10 | Carbon black tail gas desulfurization device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203806505U CN202270473U (en) | 2011-10-10 | 2011-10-10 | Carbon black tail gas desulfurization device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202270473U true CN202270473U (en) | 2012-06-13 |
Family
ID=46190864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203806505U Expired - Fee Related CN202270473U (en) | 2011-10-10 | 2011-10-10 | Carbon black tail gas desulfurization device |
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|---|---|
| CN (1) | CN202270473U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104307344A (en) * | 2014-11-13 | 2015-01-28 | 攀枝花钢城集团瑞通制冷设备有限公司 | Carbon black tail gas purifying device |
| CN105597501A (en) * | 2016-01-04 | 2016-05-25 | 中橡集团炭黑工业研究设计院 | Method for exhaust gas desulfurization and denitration in carbon black production process |
| CN110354670A (en) * | 2019-08-15 | 2019-10-22 | 太原黑猫炭黑有限责任公司 | A kind of boiler with tailed flue gas takes off white system and method |
| US10723964B2 (en) | 2015-09-28 | 2020-07-28 | Haldor Topsøe A/S | Process for energy recovery in carbon black production |
| CN111909710A (en) * | 2020-08-06 | 2020-11-10 | 云南云维飞虎化工有限公司 | Carbon black tail gas treatment method |
| CN114440249A (en) * | 2022-03-04 | 2022-05-06 | 苏州乔发环保科技股份有限公司 | Carbon black tail gas waste heat recovery process |
-
2011
- 2011-10-10 CN CN2011203806505U patent/CN202270473U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104307344A (en) * | 2014-11-13 | 2015-01-28 | 攀枝花钢城集团瑞通制冷设备有限公司 | Carbon black tail gas purifying device |
| US10723964B2 (en) | 2015-09-28 | 2020-07-28 | Haldor Topsøe A/S | Process for energy recovery in carbon black production |
| CN105597501A (en) * | 2016-01-04 | 2016-05-25 | 中橡集团炭黑工业研究设计院 | Method for exhaust gas desulfurization and denitration in carbon black production process |
| CN105597501B (en) * | 2016-01-04 | 2019-01-01 | 中橡集团炭黑工业研究设计院 | A kind of method of exhuast gas desulfurization, denitration in carbon black process |
| CN110354670A (en) * | 2019-08-15 | 2019-10-22 | 太原黑猫炭黑有限责任公司 | A kind of boiler with tailed flue gas takes off white system and method |
| CN111909710A (en) * | 2020-08-06 | 2020-11-10 | 云南云维飞虎化工有限公司 | Carbon black tail gas treatment method |
| CN114440249A (en) * | 2022-03-04 | 2022-05-06 | 苏州乔发环保科技股份有限公司 | Carbon black tail gas waste heat recovery process |
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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 |
Granted publication date: 20120613 Termination date: 20141010 |
|
| EXPY | Termination of patent right or utility model |