CN104208992B - Method for desulfurizing acid gas containing hydrogen sulfide and recycling sulfur - Google Patents
Method for desulfurizing acid gas containing hydrogen sulfide and recycling sulfur Download PDFInfo
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- CN104208992B CN104208992B CN201410482673.5A CN201410482673A CN104208992B CN 104208992 B CN104208992 B CN 104208992B CN 201410482673 A CN201410482673 A CN 201410482673A CN 104208992 B CN104208992 B CN 104208992B
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Abstract
The invention discloses a method for desulfurizing acid gas containing hydrogen sulfide and recycling sulfur. The method for desulfurizing acid gas containing hydrogen sulfide and recycling sulfur sequentially comprises the following steps: introducing the acid gas into a combustion furnace to be mixed with air introduced by the other pipeline so as to carry out a combustion reaction; introducing the gas reacted in the combustion furnace into a cooler to be cooled to 230-250 DEG C, after cooling, separating the cooled liquid sulfur at a liquid outlet, introducing mixed gas in the combustion furnace into a catalyst reactor, enabling hydrogen sulfide to react with sulfur dioxide in the catalyst reactor so as to generate sulfur and water, and separating the generated liquid sulfur at the liquid outlet of the catalyst reactor; introducing the mixed gas in the catalyst reactor into a hydrogenation reactor and enabling the sulfur dioxide to react with hydrogen in the hydrogenation reactor; introducing the gas in the hydrogenation reactor into a hydrogen sulfide absorption device and preparing the hydrogen sulfide into elemental sulfur under the action of an alkaline solution, a complex catalyst and the introduced air. The method for desulfurizing acid gas containing hydrogen sulfide and recycling sulfur has the advantages of short process route, high quality of produced sulfur and low energy consumption, is capable of fully removing SO2 gas and is green and environmentally friendly.
Description
Technical field
The present invention relates to industrial waste gas processing technology field, especially a kind of the sour gas containing hydrogen sulfide is taken off
Sulfur the method reclaiming sulfur.
Background technology
With China's rapid economic development, the Raw Material Demand amount such as coal, oil, natural gas is continuously increased, due to China
Oil and natural gas amount is less, mostly relies on from external import.Increase with national market demand, good quality raw material
Import difficulty is big, price competition excitation, is reduces cost, the most sulfur content of import raw material is higher.For reach subsequent clients and
The market demand is it is necessary to remove to sulfur.Sulfur recovery technology was introduced through nearly 40 years at home and is developed, and assumed domestic free skill
Art and international technology parallel development trend.1883, British scientist Crouse proposed first from h2S gas Recovered sulphur technique
Method, through 100 years development, technology is greatly improved.According to statistics, 2000-2003, Chinese sulfur recovery unit is from 62 sets
Increase to set more than 100, have to 2014 nearly 50 sets large and medium-sized devices to go into operation again.Though economic fast-developing, environmental pollution in recent years
Seriously, particularly haze weather causes significant damage to environment, and so2Larger to haze weather " contribution ", country is in order to administer
Environment, so in discharge gas2Content will be reduced to 50mg/m in 20153Below.So in domestic currently all sulfur recovery unit2Row
Put 95% not up to standard.For many years, though sulfur recovery technology is changed and improvement through multiple, and increased vent gas treatment measure,
Technological principle is unchanged, on the basis of the many Crouses in improvement of the technology currently using, grinds in rationale, technological process, catalyst
System, device structure and material, automatic control schemes and the many-side such as chain are developed and are improved, but final thoroughly realize polluting
Thing zero-emission.A kind of existing application number cn96102799.1 is entitled, and " one kind contains h2The side of elemental sulfur is extracted in the mixed gas of s
Method " Chinese invention patent disclose and a kind of contain h from a kind of2The method extracting elemental sulfur in the mixed gas of s, wherein, this mixes
Close gas to be desulfurized in a claus plant first and produce elemental sulfur simultaneously, secondly, still contain in Crouse's waste gas
Sulphur compound h is transformed into by hydrogenation2S, next, the Crouse's waste gas having hydrogenated carries out h2The Direct Catalytic Oxidation of s is simultaneously
Generate elemental sulfur.However, this invention can not remove so completely2, the discharge of gas, and h2The absorption process energy consumption of s is larger, because
This is it is necessary to further improve to the method.
Content of the invention
The technical problem to be solved is to provide one kind can desulfurization energy for above-mentioned state of the art
Reclaim the completely removed desulfurization of sulfuration Hydrogen Energy in sulfur and sour gas the method reclaiming sulfur.
The technical scheme that present invention solution above-mentioned technical problem is adopted is: this is carried out to the sour gas containing hydrogen sulfide
Desulfurization and reclaim sulfur method it is characterised in that: in turn include the following steps:
Step one, the sour gas containing hydrogen sulfide is passed through in combustion furnace, with the sky being passed through combustion furnace from another pipeline
Gas mixing carries out combustion reaction, and the admission pressure of the sour gas being passed through in described combustion furnace remains 20～100kpa；Reaction
Formula equation is: 2h2s+o2→2s↓+2h2o；2h2s+3o2→2so2+2h2o；
Step 2, in combustion furnace, reacted gas enters into and is cooled to 230～250 DEG C in cooler, liquid after cooling
State sulfur is isolated from liquid outlet, and the sulfur dioxide generating after not completely burned off hydrogen sulfide gas in combustion furnace and burning
The mixed gas of gas enter hydrogen-catalyst reactor, make hydrogen sulfide and titanium dioxide in the presence of base catalyst in hydrogen-catalyst reactor
Between sulfur, reaction generates sulfur and water, and the liquid sulfur of generation separates from the liquid outlet of hydrogen-catalyst reactor, and reaction equation is:
2h2s+so2→3s↓+2h2o；
Step 3, by unreacted in hydrogen-catalyst reactor, completely hydrogen sulfide and sulfur dioxide mixture gas enter to pressure
It is maintained in the hydrogenation reactor of 20～100kpa, in hydrogenation reactor, the sulfur dioxide of mixed gas and hydrogen react and by two
Sulfur oxide is reduced into hydrogen sulfide, and reaction equation is: so2+3h2→h2s+2h2o；
Step 4, the gas that by hydrogen reduction, the hydrogen sulfide in hydrogenation reactor is become hydrogen sulfide with sulfur dioxide enter into it
It is built-in with alkaline solution and the hydrogen sulfide absorption device of complex compound catalyst, by hydrogen sulfide in alkaline solution, complex catalysis
Agent and generate elemental sulfur in the presence of being passed through air, reaction equation is:
·co3 2-+co2+h2o→2hco3 -
·h2s+oh-→hs-+h2o
·fe3+(complex state)+hs-→fe2+(complex state)+s+h+
Net reaction is: fe3+(complex state)+h2s+oh-→fe2+(complex state)+s ↓+h2o
Complete desulfurization and reclaim sulfur step.
As improvement, the hydrogen sulfide absorption device in step 4 is passed through air with interval, until no longer producing precipitation.
As improving further, the time being passed through air every time is 0.2～3 second.
As improvement, in the combustion furnace of step one, reacted gas enters into the cooler that pressure is 20～100kpa
In be cooled to 230～250 DEG C.
As improvement, in step 3, by unreacted in hydrogen-catalyst reactor, completely hydrogen sulfide is mixed with sulfur dioxide
Gas enters to pressure and is maintained in the hydrogenation reactor of 20～100kpa.
As improvement, the hydrogen sulfide absorption device interior reaction temperature in described step 4 is maintained at 50～60 DEG C.
As improvement, in described combustion furnace, the reaction temperature of gas combustion is maintained at 980～1370 DEG C, and the response time is
0.5～3 second.
As improvement, in described hydrogen-catalyst reactor, reaction temperature remains 265～275 DEG C, and the response time is 3～10
Second.
As improvement, the liquid sulfur of described combustion furnace and hydrogen-catalyst reactor reaction generation is collected by pipeline is unified respectively
To in sulfur pond, the liquid sulfur in described sulfur pond is delivered to sulfur granulator by sulfur pump and produces solid sulfur.
As improvement, described catalyst is complex compound catalyst, and described base catalyst is al2o3, described alkaline solution is
na2co3Solution.
Compared with prior art, the present invention the sour gas containing hydrogen sulfide is carried out desulfurization and reclaim sulfur method tool
Have the following advantages: process route is short, device therefor manufacture processing is simple, production domesticization, good catalyst activity can be fully achieved, produce
Sulfur quality better, energy consumption is low, easy to control.After this technique desulfurization operations, more than 95% h in gas2S is converted into elemental sulfur,
So in residual gas2It is fully converted to h2S, the gas going out the 3rd reactor contains a small amount of h2S, by hydrogen sulfide absorption device, inhales
Receive most h2S, makes h2S gas is in o2Be converted into elemental sulfur under catalyst action, gas reach removing h2S purpose,
H in whole gas2S content is less than 1ppm, so2Content is zero.Catalyst adopts the complex of variable valency metal ferrum, is two kinds of metallic irons
Compounding complex system, for stable performance during sulphur-containing solution, desulfuration efficiency is high, and regeneration capacity is strong, effective Sulfur capacity up to
0.60g/l is (with h2S content≤1500mg/nm3Calculate) more than, h after desulfurization2S content is up to 5mg/nm3Hereinafter, and catalyst
In be furnished with several functions auxiliary agent, can improve the stability of catalyst, reduce degradation rate, improve the surface property of sulfur particle, make
Sulfur particle growth, measures most of sulfur granules particle diameter through material institute of Chinese Academy of Sciences laser granulometry and is 11 μm, sulfur foaming abundancy
Stablize it is easy to remove；Regenerative response completely, forms binary catalyst oxidation system, accelerates regenerative response speed, improves after absorbing
Hs- oxidation rate in solution, makes hs in the solution leave hydrogen sulfide absorption device-Concentration is preferably minimized；Ion is contained in solution
Type surfactant, can reduce the surface tension of solution, so that simple substance sulphur is relatively enriched with, and be very easy to analyse from sulfur liquid
Go out, content of suspension sulfur is low, be difficult accumulated plugging.Hydrogen sulfide absorption unit temp is maintained at 50～60 DEG C, and temperature is 50-60 DEG C
When, solution is to co2Absorbtivity little, be conducive to h2The removing of s.High temperature absorbs and can accelerate hco3-Desorbing, generate co32-, stable
Solution acid alkalinity, reduces alkaline consumption.
Brief description
Fig. 1 is the structural representation of application assembly of the invention.
Specific embodiment
Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail.
As shown in figure 1, the present invention's carries out desulfurization the method reclaiming sulfur to the sour gas containing hydrogen sulfide, wrap successively
Include following steps:
Step one, the sour gas containing hydrogen sulfide is passed through in combustion furnace 1, is passed through combustion furnace 1 with from another pipeline
Air mixing carries out combustion reaction, and the admission pressure of the sour gas being passed through in described combustion furnace 1 remains 20～100kpa；Instead
The formula equation of answering is: 2h2s+o2→2s↓+2h2o；2h2s+3o2→2so2+2h2o；
Step 2, in combustion furnace 1, reacted gas enters into and is cooled to 230～250 DEG C, after cooling in cooler 2
Liquid sulfur is isolated from liquid outlet, and the dioxy generating after not completely burned off hydrogen sulfide gas in combustion furnace 1 and burning
Change sulfur gas mixed gas enter hydrogen-catalyst reactor 3, make in the presence of base catalyst in hydrogen-catalyst reactor 3 hydrogen sulfide with
Between sulfur dioxide, reaction generates sulfur and water, and the liquid sulfur of generation separates from the liquid outlet of hydrogen-catalyst reactor 3, reactional equation
Formula is: 2h2s+so2→3s↓+2h2o；
Step 3, by unreacted in hydrogen-catalyst reactor 3, completely hydrogen sulfide and sulfur dioxide mixture gas enter to pressure
Power is maintained in the hydrogenation reactor 4 of 20～100kpa, in hydrogenation reactor 4 sulfur dioxide of mixed gas and hydrogen react and
Sulphur dioxide reduction is become hydrogen sulfide, reaction equation is: so2+3h2→h2s+2h2o；
Step 4, the gas that by hydrogen reduction, the hydrogen sulfide in hydrogenation reactor 4 is become hydrogen sulfide with sulfur dioxide enter into
It is built-in with alkaline solution and the hydrogen sulfide absorption device 5 of complex compound catalyst, and hydrogen sulfide is urged in alkaline solution, complex
Agent and be passed through and generate elemental sulfur in the presence of air, reaction equation is:
·co3 2-+co2+h2o→2hco3 -
·h2s+oh-→hs-+h2o
·fe3+Complex state+hs-→fe2+Complex state+s+h+
Net reaction is: fe3+Complex state+h2s+oh-→fe2+Complex state+s ↓+h2o
Complete desulfurization and reclaim sulfur step.
Hydrogen sulfide absorption device 5 in step 4 is passed through air with interval, until no longer producing precipitation.It is passed through every time
The time of air is 0.2～3 second.In the combustion furnace 1 of step one, reacted gas enters into pressure is 20～100kpa's
It is cooled to 230～250 DEG C in cooler 2.In step 3, by the completely hydrogen sulfide and two of unreacted in hydrogen-catalyst reactor 3
Sulfur oxide mixed gas enter to pressure and are maintained in the hydrogenation reactor 4 of 20～100kpa.Hydrogen sulfide in described step 4
Absorption plant 5 interior reaction temperature is maintained at 50～60 DEG C.In described combustion furnace 1 reaction temperature of gas combustion be maintained at 980～
1370 DEG C, the response time is 0.5～3 second.In described hydrogen-catalyst reactor 3, reaction temperature remains 265～275 DEG C, during reaction
Between be 3～10 seconds.The liquid sulfur of described combustion furnace 1 and hydrogen-catalyst reactor 3 reaction generation is collected by pipeline unification respectively
In sulfur pond 6, the liquid sulfur in described sulfur pond 6 is delivered to sulfur granulator by sulfur pump and produces solid sulfur.Described catalysis
Agent is complex compound catalyst, and described base catalyst is al2o3, described alkaline solution is na2co3Solution.
Claims (5)
1. a kind of the sour gas containing hydrogen sulfide is carried out desulfurization and reclaim sulfur method it is characterised in that: include successively as
Lower step:
Step one, the sour gas containing hydrogen sulfide is passed through in combustion furnace (1), is passed through combustion furnace (1) with from another pipeline
Air mixing carries out combustion reaction, and the admission pressure of the sour gas being passed through in described combustion furnace (1) remains 20～100kpa；
Reaction equation equation is: 2h2s+o2→2s↓+2h2o；2h2s+3o2→2so2+2h2o；
Step 2, in combustion furnace (1), reacted gas enters in cooler (2) and is cooled to 230～250 DEG C, after cooling
Liquid sulfur is isolated from liquid outlet, and generate after not completely burned off hydrogen sulfide gas in combustion furnace (1) and burning two
The mixed gas of sulfur oxide gas enter hydrogen-catalyst reactor (3), make sulfur in hydrogen-catalyst reactor (3) in the presence of base catalyst
Change reaction between hydrogen and sulfur dioxide and generate sulfur and water, the liquid sulfur of generation separates from the liquid outlet of hydrogen-catalyst reactor (3),
Reaction equation is: 2h2s+so2→3s↓+2h2o；
Step 3, by unreacted in hydrogen-catalyst reactor (3), completely hydrogen sulfide and sulfur dioxide mixture gas enter to pressure
It is maintained in the hydrogenation reactor (4) of 20～100kpa, in hydrogenation reactor (4), the sulfur dioxide of mixed gas is reacted with hydrogen
And sulphur dioxide reduction is become hydrogen sulfide, reaction equation is: so2+3h2→h2s+2h2o；
Step 4, the gas that by hydrogen reduction, the hydrogen sulfide in hydrogenation reactor (4) is become hydrogen sulfide with sulfur dioxide enter into it
It is built-in with alkaline solution and the hydrogen sulfide absorption device (5) of catalyst, hydrogen sulfide in alkaline solution, catalyst and is passed through sky
Elemental sulfur is generated, reaction equation is in the presence of gas:
·co3 2-+co2+h2o→2hco3 -
·h2s+oh-→hs-+h2o
·fe3++hs-→fe2++s+h+
Net reaction is: fe3++h2s+oh-→fe2++s↓+h2o
Complete desulfurization and reclaim sulfur step；Hydrogen sulfide absorption device (5) in step 4 is passed through air with interval, until
No longer produce precipitation；The time being passed through air every time is 0.2～3 second；Described catalyst is complex compound catalyst, described base catalyst
For al2o3, described alkaline solution is na2co3Solution.
2. method according to claim 1 it is characterised in that: anti-in the hydrogen sulfide absorption device (5) in described step 4
Temperature is answered to be maintained at 50～60 DEG C.
3. method according to claim 1 it is characterised in that: the reaction temperature of gas combustion in described combustion furnace (1) is protected
Hold at 980～1370 DEG C, the response time is 0.5～3 second.
4. method according to claim 1 it is characterised in that: in described hydrogen-catalyst reactor (3), reaction temperature remains
265～275 DEG C, the response time is 3～10 seconds.
5. method according to claim 1 it is characterised in that: described combustion furnace (1) and hydrogen-catalyst reactor (3) reaction life
The liquid sulfur becoming is collected in sulfur pond (6) by pipeline unification respectively, and the liquid sulfur in described sulfur pond (6) is defeated by sulfur pump
Deliver to sulfur granulator and produce solid sulfur.
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| US10016721B1 (en) | 2017-05-25 | 2018-07-10 | Jiangnan Environmental Protection Group Inc. | Ammonia-based desufurization process and apparatus |
| US10092877B1 (en) | 2017-05-25 | 2018-10-09 | Jiangnan Environmental Protection Group Inc. | Dust removal and desulfurization of FCC exhaust gas |
| US10099170B1 (en) | 2017-06-14 | 2018-10-16 | Jiangnan Environmental Protection Group Inc. | Ammonia-adding system for ammonia-based desulfurization device |
| US10112145B1 (en) | 2017-09-07 | 2018-10-30 | Jiangnan Environmental Protection Group Inc. | Method for controlling aerosol production during absorption in ammonia desulfurization |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0140191A2 (en) * | 1983-10-07 | 1985-05-08 | Ford, Bacon & Davis Inc. | Tail gas treating process |
| CN1119032A (en) * | 1993-03-11 | 1996-03-20 | 卡瓦尔纳制浆技术公司 | A method of separating sulphur compounds |
| US5676921A (en) * | 1994-03-17 | 1997-10-14 | Linde Aktiengesellschaft | Method for the recovery of elemental sulfur from a gas mixture containing H2 S |
| CN1203828A (en) * | 1997-06-27 | 1999-01-06 | 中国石化齐鲁石油化工公司 | Catalyst for vecovering elemental sulphur selective oxidation of hydrogen sulfide and its preparing method |
| JP2004345904A (en) * | 2003-05-22 | 2004-12-09 | Jgc Corp | Method and apparatus for recovering sulfur |
| CN101054165A (en) * | 2007-01-30 | 2007-10-17 | 四川四维工程设计有限公司 | Device and method of reclaim and processing tail gas of sulfur |
| CN101579603A (en) * | 2009-06-26 | 2009-11-18 | 北京化工大学 | Process for advanced treatment of waste alkali in hydrogen sulfide removal |
| CN103585883A (en) * | 2013-11-13 | 2014-02-19 | 江苏智道工程技术有限公司 | Technology and device for recovering volatile tail gas in sulfur collection pit of sulfur device of oil refinery |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005022164B4 (en) * | 2005-05-13 | 2009-08-06 | Lurgi Gmbh | Apparatus and method for operating the apparatus for the continuous recovery of sulfur from H2S-containing gas |
-
2014
- 2014-09-17 CN CN201410482673.5A patent/CN104208992B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0140191A2 (en) * | 1983-10-07 | 1985-05-08 | Ford, Bacon & Davis Inc. | Tail gas treating process |
| CN1119032A (en) * | 1993-03-11 | 1996-03-20 | 卡瓦尔纳制浆技术公司 | A method of separating sulphur compounds |
| US5676921A (en) * | 1994-03-17 | 1997-10-14 | Linde Aktiengesellschaft | Method for the recovery of elemental sulfur from a gas mixture containing H2 S |
| CN1203828A (en) * | 1997-06-27 | 1999-01-06 | 中国石化齐鲁石油化工公司 | Catalyst for vecovering elemental sulphur selective oxidation of hydrogen sulfide and its preparing method |
| JP2004345904A (en) * | 2003-05-22 | 2004-12-09 | Jgc Corp | Method and apparatus for recovering sulfur |
| CN101054165A (en) * | 2007-01-30 | 2007-10-17 | 四川四维工程设计有限公司 | Device and method of reclaim and processing tail gas of sulfur |
| CN101579603A (en) * | 2009-06-26 | 2009-11-18 | 北京化工大学 | Process for advanced treatment of waste alkali in hydrogen sulfide removal |
| CN103585883A (en) * | 2013-11-13 | 2014-02-19 | 江苏智道工程技术有限公司 | Technology and device for recovering volatile tail gas in sulfur collection pit of sulfur device of oil refinery |
Cited By (8)
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|---|---|---|---|---|
| US10207220B2 (en) | 2017-03-15 | 2019-02-19 | Jiangnan Environmental Protection Group Inc. | Method and apparatus for removing sulfur oxides from gas |
| US10016721B1 (en) | 2017-05-25 | 2018-07-10 | Jiangnan Environmental Protection Group Inc. | Ammonia-based desufurization process and apparatus |
| US10092877B1 (en) | 2017-05-25 | 2018-10-09 | Jiangnan Environmental Protection Group Inc. | Dust removal and desulfurization of FCC exhaust gas |
| US10213739B2 (en) | 2017-05-25 | 2019-02-26 | Jiangnan Environmental Protection Group Inc. | Dust removal and desulfurization of FCC exhaust gas |
| US10099170B1 (en) | 2017-06-14 | 2018-10-16 | Jiangnan Environmental Protection Group Inc. | Ammonia-adding system for ammonia-based desulfurization device |
| US10159929B1 (en) | 2017-06-14 | 2018-12-25 | Jiangnan Environmental Protection Group Inc. | Ammonia-adding system for ammonia-based desulfurization device |
| US20190001267A1 (en) | 2017-07-03 | 2019-01-03 | Jiangnan Environmental Protection Group Inc. | Desulfurization absorption tower |
| US10112145B1 (en) | 2017-09-07 | 2018-10-30 | Jiangnan Environmental Protection Group Inc. | Method for controlling aerosol production during absorption in ammonia desulfurization |
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