CN204187640U - Desulfurization is carried out to the sour gas containing hydrogen sulfide and reclaims the device of sulphur - Google Patents
Desulfurization is carried out to the sour gas containing hydrogen sulfide and reclaims the device of sulphur Download PDFInfo
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- CN204187640U CN204187640U CN201420542017.5U CN201420542017U CN204187640U CN 204187640 U CN204187640 U CN 204187640U CN 201420542017 U CN201420542017 U CN 201420542017U CN 204187640 U CN204187640 U CN 204187640U
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Abstract
A kind ofly desulfurization is carried out to the sour gas containing hydrogen sulfide and reclaims the device of sulphur, include combustion furnace (1), first import of combustion furnace (1) is connected with sour gas, second import and contact air, gas after being burnt in combustion furnace (1) with sour gas by air is connected with cooler (2), the liquid sulfur outlet after cooling is provided with in cooler (2), in cooler (2), mixed gas outlet is connected by the import of pipeline with hydrogen-catalyst reactor (3), hydrogen-catalyst reactor is provided with liquid sulfur outlet in (3), and mixed gas outlet is connected by the import of pipeline with hydrogenation reactor (4) in hydrogen-catalyst reactor (3), gas vent in hydrogenation reactor (4) is connected by the import of pipeline with hydrogen sulfide absorption device (5), the inner chamber of hydrogen sulfide absorption device (5) is also by pipeline and valve energy and contact air, sulphur outlet is provided with in hydrogen sulfide absorption device (5).The advantage of this device is: energy consumption is low.SO can be removed completely
2gas, environmental protection.
Description
Technical field
The utility model relates to industrial waste gas processing technology field, especially a kind ofly carries out desulfurization to the sour gas containing hydrogen sulfide and reclaims the device of sulphur.
Background technology
Along with China's rapid economic development, the Raw Material Demand amounts such as coal, oil, natural gas are constantly increased, due to China's oil and amount of natural gas less, major part depends on from external import.Along with national market demand strengthens, good quality raw material import difficulty is large, price competition excitation, and for reducing costs, the most sulfur content of import raw material is higher.For reaching subsequent clients and the market demand, must remove sulphur.Sulfur recovery technology was introduced and development through nearly 40 years at home, presented domestic free technology and international technology parallel development trend.1883, first British scientist Crouse proposed from H
2s gas Recovered sulphur process, through 100 years development, technology obtains significant improvement.According to statistics, 2000-2003, China Sulfur retracting device increases to 100 from 62 covers more and overlaps, and has again the large and medium-sized device of nearly 50 cover to go into operation to 2014.Though economical fast-developing, environmental pollution is in recent years serious, and particularly haze weather causes significant damage to environment, and SO
2comparatively large to haze weather " contribution ", SO in gas, in order to Environment control, discharges in country
2content will be reduced to 50mg/m in 2015
3below.SO in domestic present all sulfur recovery units
2discharge 95% is not up to standard.Existing a kind of application number CN01802242.1 name is called that the Chinese invention patent of " method for treating combustion gas and treating apparatus " discloses a kind of method for the treatment of of combustion flue gas, comprise to burnt gas denitration, with ammonia to its desulfurization, the waste water Calcium Carbonate Filtration that the dust that the waste water produce desulfurization or washing are collected obtains, regulate the pH value of filtrate, add carbon dioxide and/or carbonate aqueous solution, then add flocculant to make solid matter sedimentation, then reclaim ammonia from supernatant.The ammonia of recovery is added in the gas after denitration for the treatment of burnt gas.But the device that this patent uses can not remove SO completely
2gas purging, and sulphur recovery efficiency is lower, therefore, is necessary to improve further this device.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of desulfurization can to reclaim sulphur and the complete removed desulfurization of sulfuration Hydrogen Energy in sour gas reclaim the device of sulphur for above-mentioned prior art present situation.
The utility model solves the problems of the technologies described above adopted technical scheme, this carries out desulfurization to the sour gas containing hydrogen sulfide and reclaims the device of sulphur, include combustion furnace, it is characterized in that: the first import of described combustion furnace is connected with the sour gas containing hydrogen sulfide by pipeline, second import and contact air, gas after being burnt in combustion furnace with sour gas by air is connected with cooler by pipeline, the liquid sulfur outlet after cooling is provided with in described cooler, in described cooler, the hydrogen sulfide gas of after-flame is not connected by the import of pipeline with the hydrogen-catalyst reactor being placed with catalyst with the mixed gas outlet of the sulfur dioxide gas generated after burning completely, the liquid sulfur outlet that reaction generates is provided with in hydrogen-catalyst reactor, and the mixed gas outlet that in described hydrogen-catalyst reactor, hydrogen sulfide is complete with sulfur dioxide unreacted is connected with the import of hydrogenation reactor by pipeline, the gas vent of hydrogen sulfide is become to be connected by the import of pipeline with hydrogen sulfide absorption device with sulfur dioxide by hydrogen reduction in the hydrogen sulfide in hydrogenation reactor, the inner chamber of described hydrogen sulfide absorption device is also by pipeline and valve energy and contact air, be provided with in described hydrogen sulfide absorption device and react with hydrogen sulfide under the effect of bicarbonate ion and complex compound catalyst and the sulphur precipitated exports.
As improvement, the liquid sulfur outlet in described cooler after cooling is connected with storage sulphur device by pipeline.
Further improvement, described cooler is to be lowered the temperature the cooling pipeline that forms of pipe by N root, described N be greater than 2 natural number.
As improvement, the liquid sulfur outlet that described hydrogen-catalyst reactor reaction generates is connected with storage sulphur device by pipeline.
As improvement, react with hydrogen sulfide in described hydrogen sulfide absorption device and the sulphur that precipitates is exported and is connected with storage sulphur device by pipeline.
As improvement, described combustion furnace, cooler, hydrogen-catalyst reactor, hydrogenation reactor, be all provided with the temperature controller be connected with console and pressure controller in sulfurator absorption plant.
Compared with prior art, of the present utility modelly desulfurization is carried out to the sour gas containing hydrogen sulfide and the device tool reclaiming sulphur has the following advantages: manufacture processing simple, can realize production domesticization completely, produce sulphur quality better, energy consumption is low, and it is convenient to control.After sour gas passes through this device, more than 95% H in gas
2s is converted into elemental sulfur, SO in residual gas
2be converted into H completely
2s, the gas going out the 3rd reactor contains a small amount of H
2s, by hydrogen sulfide absorption device, absorbs most H
2s, makes H
2s gas is at O
2be converted into elemental sulfur with under catalyst action, gas reaches and removes H
2the object of S, H in final gas
2s content is less than 1ppM, SO
2content is zero.Catalyst adopts the complex compound of variable valency metal iron, and be the composite complex system of two kinds of metallic irons, for stable performance during sulphur-containing solution, desulfuration efficiency is high, and power of regeneration is strong, and effective Sulfur capacity can reach 0.60g/L (with H
2s content≤1500mg/Nm
3calculate) more than, H after desulfurization
2s content can reach 5mg/Nm
3below, and be furnished with several functions auxiliary agent in catalyst, the stability of catalyst can be improved, reduce degradation rate, improve the surface property of sulphur particle, make sulphur particle growth, measuring most of sulfur granules particle diameter through material institute of Chinese Academy of Sciences laser granulometry is 11 μm, sulphur foaming abundancy is stablized, and is easy to remove; Regenerative response is complete, forms binary catalyst oxidation system, accelerates regenerative response speed, HS in solution after raising absorbs
-oxidation rate, makes to leave HS in the solution of hydrogen sulfide absorption device
-concentration drops to minimum; Containing ionic surfactant material in solution, can reduce the surface tension of solution, make the relative enrichment of simple substance sulphur, be very easy to separate out from sulphur liquid, content of suspension sulfur is low, not easily accumulated plugging.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the utility model is described in further detail.
As shown in Figure 1, desulfurization being carried out to the sour gas containing hydrogen sulfide and reclaims the device of sulphur of the present embodiment, include combustion furnace 1, first import of described combustion furnace 1 is connected with the sour gas containing hydrogen sulfide by pipeline, second import and contact air, gas after being burnt in combustion furnace 1 with sour gas by air is connected with cooler 2 by pipeline, the liquid sulfur outlet after cooling is provided with in described cooler 2, in described cooler 2, the hydrogen sulfide gas of after-flame is not connected by the import of pipeline with the hydrogen-catalyst reactor 3 being placed with catalyst with the mixed gas outlet of the sulfur dioxide gas generated after burning completely, the liquid sulfur outlet that reaction generates is provided with in hydrogen-catalyst reactor 3, and the mixed gas outlet that in described hydrogen-catalyst reactor 3, hydrogen sulfide is complete with sulfur dioxide unreacted is connected by the import of pipeline with hydrogenation reactor 4, become the gas vent of hydrogen sulfide to be built-in with alkali lye by pipeline and its with sulfur dioxide by hydrogen reduction in the hydrogen sulfide in hydrogenation reactor 4 to be connected with the import of the hydrogen sulfide absorption device 5 of complex compound catalyst, the inner chamber of described hydrogen sulfide absorption device 5 is also by pipeline and valve energy and contact air, be provided with in described hydrogen sulfide absorption device 5 and react with hydrogen sulfide under the effect of bicarbonate ion and complex compound catalyst and the sulphur precipitated exports.Liquid sulfur outlet in cooler 2 after cooling is connected with storage sulphur device 6 by pipeline.Cooler 2 is to be lowered the temperature the cooling pipeline that forms of pipe by N root, described N be greater than 2 natural number.Described hydrogen-catalyst reactor 3 is reacted the liquid sulfur outlet generated and is connected with storage sulphur device 6 by pipeline.React with hydrogen sulfide under bicarbonate ion with the effect of complex compound catalyst in described hydrogen sulfide absorption device 5 and the sulphur that precipitates is exported and is connected with storage sulphur device 6 by pipeline.Combustion furnace 1, cooler 2, hydrogen-catalyst reactor 3, hydrogenation reactor 4, be all provided with the temperature controller be connected with console and pressure controller in sulfurator absorption plant 5.
Use the hydrogen sulfide containing sour gas of this device process, in turn include the following steps:
Step one, pass in combustion furnace 1 by the sour gas containing hydrogen sulfide, mix with the air passing into combustion furnace 1 from another pipeline and carry out combustion reaction, the admission pressure of the sour gas passed in described combustion furnace 1 remains 20 ~ 100KPa; Reaction equation equation is: 2H
2s+O
2→ 2S ↓+2H
2o; 2H
2s+3O
2→ 2SO
2+ 2H
2o, in combustion furnace (1), the reaction temperature of gas combustion remains on 980 ~ 1370 DEG C, and the reaction time is 0.5 ~ 3 second;
Step 2, in combustion furnace 1, reacted gas enters into cooler and is cooled to 230 ~ 250 DEG C, after cooling, liquid sulfur is isolated from liquid outlet, and the hydrogen sulfide gas of after-flame and the mist of the rear sulfur dioxide gas generated of burning do not enter hydrogen-catalyst reactor completely in combustion furnace 1, in hydrogen-catalyst reactor base catalyst effect under to make between hydrogen sulfide and sulfur dioxide reaction generate sulphur and water, the liquid sulfur generated is separated from the liquid outlet of hydrogen-catalyst reactor, and reaction equation is: 2H
2s+SO
2→ 3S ↓+2H
2o, in hydrogen-catalyst reactor 3, reaction temperature remains 265 ~ 275 DEG C, and the reaction time is 3 ~ 10 seconds;
Step 3, by unreacted in hydrogen-catalyst reactor, hydrogen sulfide and sulfur dioxide mixture gas enter to pressure and remain in the hydrogenation reactor of 20 ~ 100KPa completely, in hydrogenation reactor, sulphur dioxide reduction is become hydrogen sulfide with H-H reaction by the sulfur dioxide of mist, and reaction equation is: SO
2+ 3H
2→ H
2s+2H
2o;
Step 4, by the hydrogen sulfide in hydrogenation reactor and sulfur dioxide by hydrogen reduction become the gas of hydrogen sulfide to enter into hydrogen sulfide absorption device that it is built-in with alkaline solution and complex compound catalyst, by hydrogen sulfide alkaline solution, complex compound catalyst and pass into air effect under generate elemental sulfur, reaction equation is:
·CO
3 2-+CO
2+H
2O→2HCO
3 -
·H
2S+OH
-→HS
-+H
2O
Fe
3+(complex state)+HS
-→ Fe
2+(complex state)+S+H
+
Net reaction is: Fe
3+(complex state)+H
2s+OH-→ Fe
2+(complex state)+S ↓+H
2o
Namely complete desulfurization and reclaim sulphur step.
Hydrogen sulfide absorption device in step 4 passes into air with interval, until no longer produce precipitation, the time at every turn passing into air is 0.2 ~ 3 second.
In the combustion furnace 1 of step one, reacted gas enters into pressure is that the cooler of 20 ~ 100KPa is cooled to 230 ~ 250 DEG C.In step 3, by unreacted in hydrogen-catalyst reactor, hydrogen sulfide and sulfur dioxide mixture gas enter to pressure and remain in the hydrogenation reactor of 20 ~ 100KPa completely.Hydrogen sulfide absorption device 5 interior reaction temperature in described step 4 remains on 50 ~ 60 DEG C.Described combustion furnace 1 and hydrogen-catalyst reactor 3 react the liquid sulfur generated and collect in sulphur pond respectively by pipeline is unified, and the liquid sulfur in described sulphur pond is delivered to sulfur granulator by sulfur pump and produces solid sulfur.Described catalyst is complex compound catalyst, and described base catalyst is Al
2o
3, described alkaline solution is Na
2cO
3solution.
Claims (6)
1. one kind is carried out desulfurization to the sour gas containing hydrogen sulfide and reclaims the device of sulphur, include combustion furnace (1), it is characterized in that: the first import of described combustion furnace (1) is connected with the sour gas containing hydrogen sulfide by pipeline, second import and contact air, gas after being burnt in combustion furnace (1) with sour gas by air is connected with cooler (2) by pipeline, the liquid sulfur outlet after cooling is provided with in described cooler (2), in described cooler (2), the hydrogen sulfide gas of after-flame is not connected by the import of pipeline with the hydrogen-catalyst reactor (3) being placed with catalyst with the mixed gas outlet of the sulfur dioxide gas generated after burning completely, the liquid sulfur outlet that reaction generates is provided with in hydrogen-catalyst reactor (3), and the mixed gas outlet that in described hydrogen-catalyst reactor (3), hydrogen sulfide is complete with sulfur dioxide unreacted is connected by the import of pipeline with hydrogenation reactor (4), the gas vent of hydrogen sulfide is become to be connected by the import of pipeline with hydrogen sulfide absorption device (5) with sulfur dioxide by hydrogen reduction in the hydrogen sulfide in hydrogenation reactor (4), the inner chamber of described hydrogen sulfide absorption device (5) is also by pipeline and valve energy and contact air, be provided with in described hydrogen sulfide absorption device (5) and react with hydrogen sulfide under the effect of bicarbonate ion and complex compound catalyst and the sulphur precipitated exports.
2. device according to claim 1, is characterized in that: the liquid sulfur outlet in described cooler (2) after cooling is connected with storage sulphur device (6) by pipeline.
3. device according to claim 2, is characterized in that: described cooler (2) is to be lowered the temperature the cooling pipeline that forms of pipe by N root, described N be greater than 2 natural number.
4. device according to claim 1, is characterized in that: the liquid sulfur outlet that described hydrogen-catalyst reactor (3) reaction generates is connected with storage sulphur device (6) by pipeline.
5. device according to claim 1, is characterized in that: react with hydrogen sulfide in described hydrogen sulfide absorption device (5) and the sulphur that precipitates is exported and is connected with storage sulphur device (6) by pipeline.
6. according to the arbitrary described device of claims 1 to 3, it is characterized in that: described combustion furnace (1), cooler (2), hydrogen-catalyst reactor (3), hydrogenation reactor (4), be all provided with the temperature controller and pressure controller that are connected with console in sulfurator absorption plant (5).
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|---|---|---|---|
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|---|---|---|---|
| CN201420542017.5U CN204187640U (en) | 2014-09-17 | 2014-09-17 | Desulfurization is carried out to the sour gas containing hydrogen sulfide and reclaims the device of sulphur |
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| CN204187640U true CN204187640U (en) | 2015-03-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104214785A (en) * | 2014-09-17 | 2014-12-17 | 宁波市化工研究设计院有限公司 | Device for carrying out desulfurization and sulfur recovery on acid gas containing hydrogen sulfide |
-
2014
- 2014-09-17 CN CN201420542017.5U patent/CN204187640U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104214785A (en) * | 2014-09-17 | 2014-12-17 | 宁波市化工研究设计院有限公司 | Device for carrying out desulfurization and sulfur recovery on acid gas containing hydrogen sulfide |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 8 / F, building e, Hefeng creative Plaza, 435 Jiangdong North Road, Yinzhou District, Ningbo City, Zhejiang Province Patentee after: Ningbo Antai Environmental Chemical Engineering Design Co.,Ltd. Address before: 315040 8/F, Building E, Hefeng Creative Plaza, 435 Jiangbei Road, Ningbo City, Zhejiang Province Patentee before: NINGBO RESEARCH & DESIGN INSTITUTE OF CHEMICAL INDUSTRY CO.,LTD. |
|
| CP03 | Change of name, title or address |