CN104190255B - Composite catalyzing desulfurizing tanning extract device and desulphurization technological process thereof - Google Patents
Composite catalyzing desulfurizing tanning extract device and desulphurization technological process thereof Download PDFInfo
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- CN104190255B CN104190255B CN201410439661.4A CN201410439661A CN104190255B CN 104190255 B CN104190255 B CN 104190255B CN 201410439661 A CN201410439661 A CN 201410439661A CN 104190255 B CN104190255 B CN 104190255B
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Abstract
The invention discloses composite catalyzing desulfurizing tanning extract device and desulphurization technological process thereof, described desulfurizer includes desulfurizing tower and regeneration tank, described regeneration tank includes outer cylinder body, inner barrel and cover cylinder, inner barrel is provided with sieve tray, reservoir compartment it is formed with between outer cylinder body and inner barrel, lean solution mouth it is provided with on outer cylinder body, sulfur foam mouth it is provided with on cover cylinder, injection apparatus (8) it is provided with in outer cylinder body, injection apparatus includes nozzle (13), suction tube (15), trunnion (16) and anemostat (17), trunnion two ends are connected with suction tube and anemostat respectively by conical pipe, the air communicated with suction chamber it is provided with from suction inlet on suction tube, the spiral flow deflector (18) that air self-suction can be made to form eddy current it is provided with on suction tube inwall.The present invention not only can make desulfuration efficiency be greatly improved, and can effectively remove organic sulfur and inorganic sulfur, improves the reactivity of sulfur removing pregnant solution, slows down secondary salt and increases, and reduces desulfurizing agent, catalyst and the consumption of soda, cost-effective, and beneficially environmental protection.
Description
Technical field
The present invention relates to coke oven gas desulfurization equipment and desulphurization technological process.
Background technology
Coke-stove gas is the important middle high level gaseous fuel produced in coking production, can be not only used for iron and steel and produces, it is possible to for town dweller, it is possible to be used for producing the synthesis chemical products such as ammonia, methanol as raw material.But containing the harmful substances such as more hydrogen sulfide, ammonia and Blausure (German), the toxic and corrosivity to human body in coke-stove gas, environment can be caused serious pollution.Therefore coke-stove gas all must carry out desulfuration and decyanation process.Liquid is currently mainly used to remove the wet oxidation process of the hydrogen sulfide in coal gas and Blausure (German), wherein use OTS desulphurization catalyst (double-core phthalein mountain valley with clumps of trees and bamboo cobalt sulfonate organic high molecular compound) and tannic extract, vanadic anhydride coordinates the comprehensive wet desulphurization carried out to be a kind of high-efficiency desulfurization method being catalyzed tannic extract, this catalysis its desulfuration efficiency of tannic extract sulfur method can reach more than 98%, decyanation efficiency reaches more than 80%, not only desulfuration and decyanation efficiency is high, and secondary salt can be slowed down and increase, reduce desulfurizing agent, catalyst and the consumption of soda, cost-effective, the most nontoxic corrosion-free, easy to operate stable, not etching apparatus, there is no secondary pollution, be conducive to environmental protection, although this sulfur removal technology has good synthesis desulfurating effect, but it is the highest to there is also organic sulfur desulfuration efficiency, the problem that doctor solution activity is the highest with reproducibility.Desulfuration and decyanation efficiency except having with sulfur removal technology outside the Pass, its desulphurization plant is also important factor.The equipment being currently used for coke-oven-gas desulfurization and decyanation and the regeneration of separation of flow liquid mainly has wet desulphurization tower and regeneration tank, its desulfurizing tower mainly makes doctor solution be fully contacted with coal gas by liquid distribution device and filler, by in the harmful substance absorption in coal gas to doctor solution, wherein liquid distribution device is mostly to be evenly distributed on filler by liquid, the coal gas making rising carries out contacting the H2S absorbing in coal gas with reverse doctor solution, thus reaches to purify the purpose of coal gas.And the effect of regenerator is desulfurizing tower separation of flow rich solution out to be carried out oxidation regeneration become the desulfurization lean solution carrying out desulfurization capable of circulation of not sulfur-bearing, its desulfurized effect except having with the liquid distribution device in desulfurizing tower and built-in filler outside the Pass, the also self-priming airless injection effect with the ejector in regeneration tank has important relationship, injection apparatus is that the sulfur removing pregnant solution out being contained sulfur material by desulfurizing tower is sufficiently mixed with air self-suction, make sulfur removing pregnant solution formation sulfur foam isolate elemental sulfur from sulfur removing pregnant solution and carry out desulfurization, sulfur removing pregnant solution is become separation of flow lean solution and enters back into as doctor solution and be circulated desulfurization in desulfurizing tower after being processed by oxidation regeneration.The problem that ejector is primarily present at present is that the vacuum formed is the highest, sucks air capacity little, causes sulfur removing pregnant solution can not quickly be fully contacted with air self-suction, thus the regeneration effect of separation of flow rich solution is poor, affects the desulfurization treatment effect of desulfurizing tower and produces stifled tower phenomenon.
Summary of the invention
For desulfurization regeneration groove in above-mentioned prior art and the problem existing for sulfur removal technology, the invention provides one and can also effectively remove organic sulfur while efficient removal hydrogen sulfide, improve the compound desulfurizing tanning extract process method of doctor solution activity and a kind of desulfurizer making separation of flow rich solution fully activate desulfurization is provided.
Desulphurization technological process of the present invention is at existing OTS desulphurization catalyst and tannic extract, on the basis of the comprehensive wet desulphurization method of vanadic anhydride, the PDS efficient desulfurizing agent of OTS desulphurization catalyst weight 5-10% is added in OTS desulphurization catalyst, described PDS efficient desulfurizing agent is phthalocyanine cobalt sulfonate compound, described PDS desulphurization catalyst was absorbed by catalysis chemical combination before this, it is at oxidation regeneration high speed catalysis oxidation inorganic sulfur and organosulfur compound again, in the separation of flow rich solution that will be formed in desulfurization in the alkaline doctor solution (ammonia or soda) of 0.2～0.4N alkali equivalent, various organic and inorganic sulfocompounds are converted into sulfur-bearing alkali, elemental sulfur or disulphide and remove.
nullDesulfurizer of the present invention includes desulfurizing tower and regeneration tank，Described regeneration tank includes outer cylinder body、Inner barrel and cover cylinder，Described cover cylinder is connected with outer cylinder body upper end，Described inner barrel is arranged in outer cylinder body，Described inner barrel is provided with sieve tray，It is formed with reservoir compartment between described outer cylinder body and inner barrel，The lean solution mouth communicated with reservoir compartment it is provided with on described outer cylinder body，Sulfur foam mouth it is provided with on described cover cylinder，The injection apparatus arranged in the form of a ring it is provided with in described outer cylinder body，Injection apparatus upper end is supported on the vertex of a cone of cover cylinder，Lower end extend into outer cylinder body bottom through sieve tray，Described injection apparatus includes nozzle、Suction tube、Trunnion and anemostat，Described trunnion two ends are connected with suction tube and anemostat respectively by conical pipe，The air self-suction mouth communicated with suction chamber it is provided with on described suction tube，Described nozzle is arranged in suction tube，The spiral flow deflector that air self-suction can be made to form eddy current it is provided with on described suction tube inwall.
nullThe present invention is at existing OTS desulphurization catalyst and tannic extract、On the basis of the comprehensive wet desulphurization method of vanadic anhydride，PDS efficient desulfurizing agent is added in OTS desulphurization catalyst，Absorbed by catalysis chemical combination，At oxidation regeneration high speed catalysis oxidation inorganic sulfur and organosulfur compound，In the alkaline doctor solution (ammonia or soda) that alkali equivalent is 0.2～0.4N, the various organic and inorganic sulfocompound formed in sweetening process is converted into sulfur-bearing alkali、Elemental sulfur or disulphide and remove，Thus reach both can efficient removal hydrogen sulfide，Can effectively remove again organic sulfur，Improve doctor solution activity，Hydrogen sulfide desulfurized effect reaches more than 98%，Blausure (German) removal efficiency is more than 80%，After desulfurization, in coal gas, hydrogen sulfide content drops to below 20 mg/litre，It is significantly less than hydrogen sulfide national standard content 200 mg/litre in coal gas.
The present invention is by being provided with spiral flow deflector on suction tube inwall, air self-suction is made efficiently to be sufficiently mixed under forming eddy current in entering suction chamber and dividing emulsifying (becoming foam stream) with the sulfur removing pregnant solution formation gas-liquid two-phase ejected from nozzle and flow to, the air sucked is broken for the least microbubble, specific surface area increases, bubble is increased resident time in regeneration tank, make regenerative response abundant, thus improve the reactivity of sulfur removing pregnant solution, the organic sulfur in sulfur removing pregnant solution and inorganic sulfur is made fully to activate formation sulfur foam by sieve tray effect, sulfur foam is flowed out from sulfur foam mouth by level regulator, and the desulfurization lean solution after oxidation regeneration is input to desulfurizing tower form circulation desulfurization as doctor solution with pump after lean solution mouth flows out by reservoir compartment.After this Novel spraying emitter uses, its Regeneration Treatment effect improves more than 20% than existing ejector treatment effect, thus can reduce doctor solution consumption, saves and produces processing cost and equipment investment.
The present invention is that applicant is through to existing desulfurizer and the improvement of sulfur removal technology, hydrogen sulfide desulfuration efficiency in coal gas not only can be made to be greatly improved, and can effectively remove organic sulfur and inorganic sulfur, improve the reactivity of sulfur removing pregnant solution, not only desulfuration and decyanation efficiency is high, and secondary salt can be slowed down and increase, reduce desulfurizing agent, catalyst and the consumption of soda, cost-effective, the most nontoxic the most corrosion-free, easy to operate stable, not etching apparatus, there is no secondary pollution, beneficially environmental protection, achieve bigger economic benefit and good social benefit.
Accompanying drawing explanation
Fig. 1 is the broken section structural representation of regeneration tank of the present invention,
Fig. 2 is the sectional structure enlarged diagram of injection apparatus of the present invention,
Fig. 3 is the A-A sectional structure schematic diagram of Fig. 2.
In the drawings, 1, lean solution mouth 2, hole 3, outer cylinder body 4, sulfur foam mouth 5, cover cylinder 6, support body 7, air self-suction mouth 8, injection apparatus 9, the vertex of a cone 10, inner barrel 11, sieve tray 12, lower flange 13, nozzle 14, upper flange 15, suction tube 16, trunnion 17, anemostat 18, spiral flow deflector 19, suction chamber 20, reservoir compartment 21, mudhole.
Detailed description of the invention
nullAt Fig. 1、In Fig. 2 and Fig. 3，Illustrate with the desulfurizer that coal gas treating capacity under standard state is vertical m/h of 30000 sides，Desulfurizer of the present invention includes desulfurizing tower and the regeneration tank being connected with desulfurizing tower，Described regeneration tank includes support body 6、Outer cylinder body 3、Inner barrel 10 and cover cylinder 5，Described cover cylinder is connected with outer cylinder body upper end，It is provided with on outer cylinder body and is easy to clean and the hole 2 of maintenance，Described inner barrel is arranged in outer cylinder body，Described inner barrel is provided with the sieve tray 11 made with corrosion resistant plate，Sieve diameter is 10-20 millimeter and arranges in dispersed，Reservoir compartment 20 it is formed with between described outer cylinder body and inner barrel，Cover cylinder top is provided with the vertex of a cone 9，Described outer cylinder body lower end is provided with the lean solution mouth 1 communicated with reservoir compartment，Sulfur foam mouth 4 it is provided with on described cover cylinder，Arrange in the injection apparatus 8 having ring-type setting in described outer cylinder body，Ejector upper end is supported on cover cylinder，Lower end extend into outer cylinder body bottom through sieve tray，Outer cylinder body bottom is provided with mudhole 21，Ejector divides inside and outside two-layer to be distributed in the form of a ring，Internal layer be eight uniform，Outer layer be 16 uniform，Described ejector includes suction tube 15、Trunnion 16、Anemostat 17 and nozzle 13，Described trunnion two ends are connected with suction tube and anemostat respectively by conical pipe (not marking in figure)，Suction tube upper end is connected with lower flange 12，Upper end of nozzle is connected through lower flange with upper flange 14，The air self-suction mouth 7 communicated with suction chamber 19 it is provided with on described suction tube，Described trunnion is positioned at suction chamber，Trunnion upper end is supported on suction tube、Lower end is cantilever-shaped，The spiral flow deflector 18 that air self-suction can be made to form eddy current it is provided with on described suction tube inwall，The height of spiral flow deflector is less than sucking 1/2nd be spaced between cylinder and nozzle，Described spiral flow deflector corrosion resistant plate is made，Spiral flow deflector thickness is 3-10 millimeter.
nullSulfur removal technology of the present invention: first by OTS desulphurization catalyst and tannic extract in prior art、Vanadic anhydride is commonly used proportioning and is configured to solution，The PDS efficient desulfurizing agent stirring mixing of the 5-10% of OTS desulphurization catalyst weight is added again in this solution，And it is deployed into the alkaline doctor solution that alkali equivalent is 0.2～0.4N，This alkalescence doctor solution enters liquid distribution device from desulfurizing tower top，Doctor solution contacts with coal gas from bottom to top after liquid distribution device and carries out desulfurization，Coal gas after desulfurization enters lower operation，And sulfur-bearing doctor solution becomes sulfur removing pregnant solution，From desulfurizing tower, pending sulfur-bearing sulfur removing pregnant solution out is entered in injection apparatus by pipeline and rich solution pump，And after mixing, enter the bottom of the outer cylinder body of regeneration tank with air self-suction，During sulfur removing pregnant solution rises，Constantly produce sulfur foam，Sulfur foam sieve aperture on sieve tray carries out flotation，The sulfur foam overflowed enters sulfur foam tank，Sulfur recovery system is entered through stream foam mouth.And the desulfurization lean solution after regenerating enters lean liquid bath by level regulator and lean solution mouth, then with transport pump to desulfurizing tower, the system that returns recycles as separation of flow liquid.
Claims (1)
1. composite catalyzing desulfurizing tanning extract device, described desulfurizer includes desulfurizing tower and regeneration tank, described
Regeneration tank includes on outer cylinder body (3), inner barrel (10) and cover cylinder (5), described cover cylinder and outer cylinder body
End is connected, and described inner barrel is arranged in outer cylinder body, it is characterised in that: described inner barrel is provided with sieve tray
(11), between described outer cylinder body and inner barrel, be formed with reservoir compartment (20), described outer cylinder body is provided with
The lean solution mouth (1) that reservoir compartment communicates, described cover cylinder is provided with sulfur foam mouth (4), in described outer cylinder body
Being provided with the injection apparatus (8) arranged in the form of a ring, the vertex of a cone that injection apparatus upper end is supported on cover cylinder is upper and lower
End extend into outer cylinder body bottom through sieve tray, described injection apparatus include nozzle (13), suction tube (15),
Trunnion (16) and anemostat (17), described trunnion two ends by conical pipe respectively with suction tube and anemostat phase
Even, described suction tube being provided with the air self-suction mouth (7) communicated with suction chamber (19), described nozzle is pacified
It is contained in suction tube, described suction tube inwall is provided with the spiral flow deflector that air self-suction can be made to form eddy current
(18)；
The sulfur removal technology using described composite catalyzing desulfurizing tanning extract device is: first take off by OTS in prior art
Sulfur catalyst and tannic extract, vanadic anhydride are commonly used proportioning and are configured to solution, then add OTS desulfurization in this solution
The PDS efficient desulfurizing agent stirring mixing of the 5-10% of catalyst weight, and to be deployed into alkali equivalent be 0.2～0.4N
Alkaline doctor solution, described PDS efficient desulfurizing agent is phthalocyanine cobalt sulfonate compound, this alkalescence doctor solution from
Desulfurizing tower top enters liquid distribution device, and doctor solution contacts with coal gas from bottom to top after liquid distribution device
Carrying out desulfurization, sulfur-bearing doctor solution becomes sulfur removing pregnant solution, pending sulfur-bearing sulfur removing pregnant solution out from desulfurizing tower
Entered in injection apparatus by pipeline and rich solution pump, and enter the outer cylinder body of regeneration tank with air self-suction after mixing
Bottom, during sulfur removing pregnant solution rises, constantly produces sulfur foam, sulfur foam sieve aperture on sieve tray
Carrying out flotation, the sulfur foam of spilling enters sulfur foam tank, enters sulfur recovery system through sulfur foam mouth, and after regenerating
Desulfurization lean solution enter lean liquid bath by level regulator and lean solution mouth, then with transport pump to desulfurizing tower, return system
Unite and recycle as separation of flow liquid.
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| CN201410439661.4A CN104190255B (en) | 2014-09-02 | 2014-09-02 | Composite catalyzing desulfurizing tanning extract device and desulphurization technological process thereof |
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| CN201410439661.4A CN104190255B (en) | 2014-09-02 | 2014-09-02 | Composite catalyzing desulfurizing tanning extract device and desulphurization technological process thereof |
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| CN104190255B true CN104190255B (en) | 2016-09-14 |
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| CN106731834B (en) * | 2017-01-23 | 2022-09-20 | 青岛科技大学 | Large-scale doctor solution regeneration groove |
| CN108079782A (en) * | 2017-12-22 | 2018-05-29 | 新疆宣力环保能源有限公司 | PSA resolution gas optimizes combined desulfurization technology with coal tar hydrogenating unit sour gas |
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| CN1003771B (en) * | 1987-09-16 | 1989-04-05 | 广西大学 | Two stage self-priming injection tank for generation |
| CN2402387Y (en) * | 1999-10-20 | 2000-10-25 | 庞金辉 | High-efficiency desulfurizing dust removal device |
| CN101195111B (en) * | 2006-12-08 | 2011-09-07 | 李宾 | Ore slurry rotational flow floatation method rotational flow flotation column and flotation unit used thereof |
| CN201158646Y (en) * | 2007-11-14 | 2008-12-03 | 淄博万丰煤气设备有限公司 | Producer gas doctor solution reclaiming groove |
| CN101230294A (en) * | 2007-12-27 | 2008-07-30 | 唐山雷浩能源技术装备有限公司 | Tannin extract (tannin) desulfurization equipment and technique thereof |
| CN101709231B (en) * | 2009-12-29 | 2011-05-04 | 林吉萍 | Self-adsorption ejector desulfurizing tower and manufacturing process thereof |
| CN202105564U (en) * | 2011-05-12 | 2012-01-11 | 湖南飞洋机电科技有限公司 | Regeneration tank of desulfurization system |
| CN202087237U (en) * | 2011-05-25 | 2011-12-28 | 山西阳煤丰喜肥业(集团)有限责任公司 | Self-suction type air oxidation regenerating desulfurization device |
| CN202387357U (en) * | 2011-12-13 | 2012-08-22 | 湖南飞洋机电科技有限公司 | Desulfuration ejector |
| CN204017670U (en) * | 2014-09-02 | 2014-12-17 | 萍乡市华星化工设备填料有限公司 | Composite catalyzing desulfurizing tanning extract device |
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Address after: 337022 Jiangxi city in Pingxiang Province, Xiangdong District, Pingxiang ceramics industry base (BU Zhen Da Po Cun Xiangdong District) Patentee after: Pingxiang Huaxing Environmental Protection Engineering Technology Co., Ltd. Address before: 337016 Tai Po Village (Jiangxi Pingxiang ceramic industry base) in Pingxiang, Jiangxi Province, Xiangdong District, Xiangdong District Patentee before: PINGXIANG HUAXING CHEMICAL EQUIPMENT PACKING CO., LTD. |