CN106955595A - The renovation process of desulfurizing agent simple substance sulphur in a kind of desulfurizing tower - Google Patents
The renovation process of desulfurizing agent simple substance sulphur in a kind of desulfurizing tower Download PDFInfo
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- CN106955595A CN106955595A CN201710256588.0A CN201710256588A CN106955595A CN 106955595 A CN106955595 A CN 106955595A CN 201710256588 A CN201710256588 A CN 201710256588A CN 106955595 A CN106955595 A CN 106955595A
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- desulfurizing agent
- desulfurizing
- sulphur
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/96—Regeneration, reactivation or recycling of reactants
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/81—Solid phase processes
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/02—Preparation of sulfur; Purification
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
Abstract
The renovation process of desulfurizing agent simple substance sulphur in desulfurizing tower of the present invention, wherein, after desulfurizing agent desulfurization saturation, simple substance sulphur undergoes following regeneration step：High temperature circulation gas is heated into desulfurizing agent, is heated to more than the fusing point of simple substance sulphur；Enter sulfur recovery cooler cooling after high temperature circulation gas heating desulfurizing agent, be cooled to more than the fusing point of simple substance sulphur, and obtain Molten sulphur；The circulating air come out from sulfur recovery cooler exchanges heat with recirculated water is cooled to normal temperature；Enter after normal temperature circulation gas lift pressure in the desulfurizing agent for completing regeneration, be cooled to desulfurization temperature；Cool down after the circulating air after desulfurizing agent is heated and enter desulfurizing agent thermal regeneration in another desulfurizing tower；After the simple substance sulphur of desulfurizing agent in desulfurizing tower is parsed, stop heating the desulfurizing agent in desulfurizing tower.The desulfurizing agent that desulfurizing agent in desulfurizing tower is cooled in desulfurization temperature, desulfurizing tower by the normal temperature circulation gas come out with water cooler completes to regenerate.
Description
Technical field
The present invention relates to a kind of renovation process of simple substance sulphur in desulfurizing agent, using high temperature regeneration, belong to desulfurization technology neck
Domain.
Background technology
At present, the sulfide in removing gaseous mixture mainly has wet desulphurization and dry desulfurization, and wet desulphurization divides Physical again
Desulfurization and chemical method desulfurization, the method, chemical method desulfurization such as Ammonia Process, ammonia such as Physical desulfurization such as low-temp methanol is washed, carbon third and NHD
Aqueous phase catalytic, examine school method, PDS methods, modified ADA method etc., Physical desulfurization does not change vulcanization using absorbing and analytic method
The form and property of thing, only by its concentrate.Chemical method desulfurization changes the form of sulfide, directly obtains elemental sulfur.Chemical method
Desulfurization can only remove inorganic sulfur hydrogen sulfide, it is impossible to remove organic sulfur, and organic sulfur must be removed by dry method.Physical both may be used
Organic sulfur can be removed again to remove inorganic sulfur, but Physical can not directly obtain simple substance sulphur, it is necessary to pass through Crouse's sulphur
Sulphur recovery process obtains elemental sulfur.Chemical method adds in dry removal organic sulfur and inorganic sulfur, and the Sulfur capacity of dry-desulphurizer is low, regeneration
Environment is polluted after the high cost of elemental sulfur in dry-desulphurizer, and regeneration gas emptying, so the Sulfur capacity saturation of general desulfurizing agent
Directly fill or burn afterwards, do not regenerate；Physical adds Crouse's recovery technology of sulfur to remove in organic sulfur and inorganic sulfur, although
Advantage of lower cost, but investment is high, and also sulfur content does not reach national environmental protection emission regulation in the waste gas of discharge, and reprocessing is useless
Gas high cost., can be by Sulphur Dioxide into elemental sulfur, then with this in desulfurizing agent in flue gas scrubbing CO_2
Renovation process obtains sulphur.
The content of the invention
It is an object of the invention to provide a kind of dry method (i.e. desulfurizing agent) removing organic sulfur and inorganic sulfur formation simple substance sulphur simultaneously
With high temperature circulation Gas reclamation obtain elemental sulfur method, compared with prior art significantly save operating cost and investment it is excellent
Point, and without regeneration off gases discharge, reduce environmental pollution.
The technical solution of the present invention is as follows：
Sulfur Contained Raw Gas is initially entered in the desulfurizing tower equipped with desulfurizing agent, and the purified gas after desulfurization enters subsequent processing, is taken off
Desulfurizing agent in sulphur tower changes into sulfide after elemental sulfur, desulfurizing agent desulfurization saturation, and simple substance sulphur experience is as follows in desulfurizing agent
Regeneration step：
Sulfur Contained Raw Gas is initially entered in the desulfurizing tower equipped with desulfurizing agent, and the purified gas after desulfurization enters subsequent processing, is taken off
Desulfurizing agent in sulphur tower changes into sulfide after elemental sulfur, desulfurizing agent desulfurization saturation, and simple substance sulphur experience is as follows in desulfurizing agent
Regeneration step：
The first step：With from circulating gas heater come high temperature circulation gas heated into desulfurizing agent, desulfurizing agent temperature
It is heated to more than the fusing point of simple substance sulphur；
Second step：Enter sulfur recovery cooler after high temperature circulation gas heating desulfurizing agent to be cooled down with external cooling gas,
Circulating air temperature is cooled to more than the fusing point of simple substance sulphur, while obtaining Molten sulphur；
3rd step：The circulating air come out from sulfur recovery cooler enters water cooler and exchanged heat with recirculated water, will circulate air cooling
But normal temperature is arrived；
4th step：The normal temperature circulation gas come out from water cooler, after power-equipment boosts, into completed regeneration
In desulfurizing agent, desulfurizing agent is cooled to desulfurization temperature；
5th step：The circulating air after desulfurizing agent is cooled down, it is de- into another completion after being heated into circulating gas heater
Desulfurizing agent thermal regeneration in the desulfurizing tower of sulphur；
6th step：After the simple substance sulphur of desulfurizing agent in desulfurizing tower is parsed, stopping is with high temperature circulation gas to desulfurizing tower
In desulfurizing agent heating.Then, the desulfurizing agent in desulfurizing tower is cooled to desulfurization temperature by the normal temperature circulation gas come out with water cooler,
So, the desulfurizing agent in desulfurizing tower just completes regeneration, is again introduced into Sulfur Contained Raw Gas and carries out desulfurization, into next
Individual cycle period.
Further, after the desulfurizing agent saturation in ' first step ' desulfurizing tower, first with being come out from sulfur recovery cooler
Circulating air into being heated, then with from circulating gas heater come high temperature circulation gas heated into desulfurizing agent, de-
Sulphur agent temperature is heated to more than the fusing point of simple substance sulphur.The circulating air that ' the 3rd step ' comes out from sulfur recovery cooler simultaneously is advanced
Heated in the desulfurizing agent for entering just to complete desulfurization, then enter back into water cooler and exchanged heat with recirculated water, circulating air is cooled to normal temperature.
Further, after the desulfurizing agent saturation in ' first step ' desulfurizing tower, first use and heat desulfurizing agent in other desulfurizing towers
Circulating air heating afterwards, then finally added with the circulating air come out from sulfur recovery cooler into being heated with from circulating air
The high temperature circulation gas that hot device comes is heated into desulfurizing agent, and desulfurizing agent temperature is heated to more than the fusing point of simple substance sulphur.Together
When ' the 3rd step ' circulating air for being come out from sulfur recovery cooler be introduced into completed the desulfurizing tower of heating for the first time in heat,
Enter back into and heated in the desulfurizing agent for just completing desulfurization, finally enter water cooler and exchanged heat with recirculated water, circulating air is cooled to normal temperature.
Further, after the desulfurizing agent saturation in ' first step ' desulfurizing tower, first use and heat desulfurizing agent in other desulfurizing towers
Different temperatures circulating air afterwards carries out 2 times or more than 2 times series connection heating, then is entered with the circulating air come out from sulfur recovery cooler
Enter to be heated, finally with from circulating gas heater come high temperature circulation gas heated into desulfurizing agent, desulfurizing agent temperature
It is heated to more than the fusing point of simple substance sulphur.The circulating air that ' the 3rd step ' comes out from sulfur recovery cooler simultaneously is introduced into complete
Into in 2 times or more than the 2 times desulfurizing towers heated heat, then connect into 2 or more than 2 completion desulfurization desulfurizing agents in plus
Heat, finally enters back into water cooler and is exchanged heat with recirculated water, circulating air is cooled into normal temperature.
Further, the normal temperature circulation gas come out in ' the 4th step ' from water cooler, after power-equipment boosts, connect into
Enter desulfurizing agent in the different desulfurizing tower of temperature for having completed regeneration of 2 or more than 2, and by the desulfurizing tower of first entrance
Middle desulfurizing agent is cooled to desulfurization temperature.
Further, enter sulfur recovery cooler after ' second step ' high temperature circulating air heating desulfurizing agent and use ' the 5th step '
Cool down desulfurizing agent after circulation air cooling, by high temperature circulation gas heat desulfurizing agent after temperature be cooled to the fusing point of simple substance sulphur with
On, while obtaining Molten sulphur；The circulating air in ' the 5th step ' after cooling desulfurizing agent, is introduced into sulfur recovery cooler cold simultaneously
But the circulating air after high temperature circulation gas heating desulfurizing agent, is entered back into after circulating gas heater is heated, de- into another completion
Desulfurizing agent thermal regeneration in the desulfurizing tower of sulphur.
Further, temperature after ' second step ' high temperature circulating air heats desulfurizing agent cools down desulfurization less than ' the 5th step '
During circulating air chilling temperature after agent, circulating air in ' the 5th step ' after cooling desulfurizing agent does not enter sulfur recovery cooler, and
Be by bypass be directly entered circulating gas heater be heated after, into another completion desulfurization desulfurizing tower in desulfurizing agent heat
Regeneration.
Further, the first step：With from circulating gas heater come high temperature circulation gas heated into desulfurizing agent, de-
Sulphur agent temperature heats 260 DEG C -450 DEG C.
Further, second step：Heat the circulating air after desulfurizing agent and enter sulfur recovery cooler and cryogenic gas heat exchange,
Circulating air temperature is cooled to more than 130 DEG C, while obtaining Molten sulphur.
Further, Sulfur Contained Raw Gas pressure is 0~10.0MPa (gauge pressure).
Further, the circulation atmospheric pressure for heating and cooling down in desulfurizing agent is 0.001~0.2MPa (gauge pressure).
Further, all pipelines are incubated and heat tracing.
Further, when Sulfur Contained Raw Gas pressure is higher than normal pressure, in desulfurizing tower after desulfurizing agent saturation, first by desulfurizing tower pressure
Power drops to normal pressure and carries out thermal regeneration again.
Further, desulfurizing agent is various activated carbons, various molecular sieves, silica gel, aluminum oxide and various Special desulfurizing agent.
Further, heat and cool down the circulating air oxygen content in desulfurizing agent and be less than 0.1% (V).
Compared with prior art, the renovation process of desulfurizing agent simple substance sulphur is significantly saved in desulfurizing tower of the present invention
Operating cost and the advantage of investment, and without regeneration off gases discharge, reduce environmental pollution.
Brief description of the drawings
Fig. 1 is the single column desulfurization of the embodiment of the present invention 1, single column heating, single column cooling, foreign gas cooling Recovered sulphur alternating temperature
Desulfurization regeneration flow chart (normal pressure absorption).
Fig. 2 is the single column desulfurization of the embodiment of the present invention 1, single column heating, single column cooling, foreign gas cooling Recovered sulphur alternating temperature
Desulfurization regeneration timing diagram (normal pressure absorption).
Fig. 3 is that the circulation air cooling after the single column desulfurization of the embodiment of the present invention 2, single column heating, single column cooling, cooling tower is but returned
Sulphur alternating temperature desulfurization regeneration flow chart (normal pressure absorption).
Fig. 4 is that the circulation air cooling after the single column desulfurization of the embodiment of the present invention 2, single column heating, single column cooling, cooling tower is but returned
Sulphur alternating temperature desulfurization regeneration timing diagram (normal pressure absorption).
Fig. 5 is that the circulation air cooling after the single column desulfurization of the embodiment of the present invention 3, the heating of two towers, single column cooling, cooling tower is but returned
Sulphur alternating temperature desulfurization regeneration flow chart (normal pressure absorption).
Fig. 6 is that the circulation air cooling after the single column desulfurization of the embodiment of the present invention 3, the heating of two towers, single column cooling, cooling tower is but returned
Sulphur alternating temperature desulfurization regeneration timing diagram (normal pressure absorption).
Fig. 7 is that the circulation air cooling after the single column desulfurization of the embodiment of the present invention 4, the heating of two towers, two tower coolers, cooling tower is but returned
Sulphur alternating temperature desulfurization regeneration flow chart (normal pressure absorption).
Fig. 8 is that the circulation air cooling after the single column desulfurization of the embodiment of the present invention 4, the heating of two towers, two tower coolers, cooling tower is but returned
Sulphur alternating temperature desulfurization regeneration timing diagram (normal pressure absorption).
Fig. 9 is that the circulation air cooling after the single column desulfurization of the embodiment of the present invention 5, the heating of three towers, two tower coolers, cooling tower is but returned
Sulphur alternating temperature desulfurization regeneration flow chart (normal pressure absorption).
Figure 10 be circulation air cooling after the single column desulfurization of the embodiment of the present invention 5, the heating of three towers, two tower coolers, cooling tower but
Return sulphur alternating temperature desulfurization regeneration timing diagram (normal pressure absorption).
Embodiment
Sulfur Contained Raw Gas of the present invention can be synthetic-ammonia transformation gas and water coal gas, natural gas, semiwater gas, blast furnace gas, gas
Gas, cracking dry gas, associated gas, oily gas making, power plant flue gas and various sulfur-containing tail gas and waste gas etc. or other
Any sulfur-bearing mixed gas.
Sulfur Contained Raw Gas of the present invention is initially entered in the desulfurizing tower equipped with desulfurizing agent, and the purified gas after desulfurization enters next work
Desulfurizing agent in sequence, desulfurizing tower changes into sulfide after elemental sulfur, desulfurizing agent desulfurization saturation, and simple substance sulphur undergoes in desulfurizing agent
Following regeneration step：
The first step：With from circulating gas heater come high temperature circulation gas heated into desulfurizing agent, desulfurizing agent temperature
It is heated to more than the fusing point of simple substance sulphur；
Second step：Enter sulfur recovery cooler after high temperature circulation gas heating desulfurizing agent to be cooled down with external cooling gas,
Circulating air temperature is cooled to more than the fusing point of simple substance sulphur, while obtaining Molten sulphur；
3rd step：The circulating air come out from sulfur recovery cooler enters water cooler and exchanged heat with recirculated water, will circulate air cooling
But normal temperature is arrived；
4th step：The normal temperature circulation gas come out from water cooler, after power-equipment boosts, into completed regeneration
In desulfurizing agent, desulfurizing agent is cooled to desulfurization temperature；
5th step：The circulating air after desulfurizing agent is cooled down, it is de- into another completion after being heated into circulating gas heater
Desulfurizing agent thermal regeneration in the desulfurizing tower of sulphur；
6th step：After the simple substance sulphur of desulfurizing agent in desulfurizing tower is parsed, stopping is with high temperature circulation gas to desulfurizing tower
In desulfurizing agent heating.Then, the desulfurizing agent in desulfurizing tower is cooled to desulfurization temperature by the normal temperature circulation gas come out with water cooler,
So, the desulfurizing agent in desulfurizing tower just completes regeneration, is again introduced into Sulfur Contained Raw Gas and carries out desulfurization, into next
Individual cycle period.
After desulfurizing agent saturation in ' first step ' desulfurizing tower, first entered with the circulating air come out from sulfur recovery cooler
Heated, then with from circulating gas heater come high temperature circulation gas heated into desulfurizing agent, desulfurizing agent temperature is added
Heat is arrived more than the fusing point of simple substance sulphur.The circulating air that ' the 3rd step ' comes out from sulfur recovery cooler simultaneously, which to be introduced into just complete, to be taken off
Heated in the desulfurizing agent of sulphur, then enter back into water cooler and exchanged heat with recirculated water, circulating air is cooled to normal temperature.
After desulfurizing agent saturation in ' first step ' desulfurizing tower, first with the circulating air heated in other desulfurizing towers after desulfurizing agent
Heating, then with the circulating air come out from sulfur recovery cooler into being heated, finally with from circulating gas heater come height
Warm circulating air is heated into desulfurizing agent, and desulfurizing agent temperature is heated to more than the fusing point of simple substance sulphur.Simultaneously ' the 3rd step '
The circulating air come out from sulfur recovery cooler is heated in being introduced into the desulfurizing tower for having completed to heat for the first time, is entered back into just complete
Heated into the desulfurizing agent of desulfurization, finally enter water cooler and exchanged heat with recirculated water, circulating air is cooled to normal temperature.
After desulfurizing agent saturation in ' first step ' desulfurizing tower, first with the not equality of temperature heated in other desulfurizing towers after desulfurizing agent
Spend circulating air and carry out 2 times or more than 2 times series connection heating, then entered with the circulating air come out from sulfur recovery cooler and added
Heat, finally with from circulating gas heater come high temperature circulation gas heated into desulfurizing agent, desulfurizing agent temperature is heated to list
It is more than the fusing point of matter sulphur.The circulating air that ' the 3rd step ' comes out from sulfur recovery cooler simultaneously, which is introduced into, has completed 2 times or 2
Heated more than secondary in the desulfurizing tower of heating, then the heating into the desulfurizing agent of 2 or more than 2 completion desulfurization of connecting, again finally
Exchanged heat into water cooler and recirculated water, circulating air is cooled to normal temperature.
The normal temperature circulation gas come out in ' the 4th step ' from water cooler, after power-equipment boosts, series connection enters 2 or 2
Desulfurizing agent in the different desulfurizing tower of temperature for having completed regeneration more than individual, and by desulfurizing agent in the desulfurizing tower of first entrance
It is cooled to desulfurization temperature.
Enter sulfur recovery cooler after ' second step ' high temperature circulating air heating desulfurizing agent and cool down desulfurization with ' the 5th step '
Circulation air cooling after agent, the temperature that high temperature circulation gas is heated after desulfurizing agent is cooled to more than the fusing point of simple substance sulphur, simultaneously
Obtain Molten sulphur；The circulating air in ' the 5th step ' after cooling desulfurizing agent, is introduced into sulfur recovery cooler cooling down high-temperature simultaneously
Circulating air after circulating air heating desulfurizing agent, is entered back into after circulating gas heater is heated, into the de- of another completion desulfurization
Desulfurizing agent thermal regeneration in sulphur tower.
Temperature after ' second step ' high temperature circulating air heats desulfurizing agent cools down following after desulfurizing agent less than ' the 5th step '
During ring air cooling temperature, the circulating air in ' the 5th step ' after cooling desulfurizing agent does not enter sulfur recovery cooler, but pass through side
Road be directly entered circulating gas heater be heated after, into another completion desulfurization desulfurizing tower in desulfurizing agent thermal regeneration.
The first step：With from circulating gas heater come high temperature circulation gas heated into desulfurizing agent, desulfurizing agent temperature
260 DEG C -450 DEG C of heating.
Second step：Heat the circulating air after desulfurizing agent and enter sulfur recovery cooler and cryogenic gas heat exchange, by circulating air
Temperature is cooled to more than 130 DEG C, while obtaining Molten sulphur.
Sulfur Contained Raw Gas pressure is 0~10.0MPa (gauge pressure).
Circulation atmospheric pressure in heating and cooling desulfurizing agent is 0.001~0.2MPa (gauge pressure).
All pipelines are incubated and heat tracing.
When Sulfur Contained Raw Gas pressure is higher than normal pressure, in desulfurizing tower after desulfurizing agent saturation, first desulfurizing tower pressure is dropped to often
Pressure carries out thermal regeneration again.
Desulfurizing agent is various activated carbons, various molecular sieves, silica gel, aluminum oxide and various Special desulfurizing agent.
Circulating air oxygen content in heating and cooling desulfurizing agent is less than 0.1% (V).
Embodiments of the invention 1
This example Sulfur Contained Raw Gas is synthesis ammonia semiwater gas, including with coal, natural gas, oily and other synthesis ammonia for raw material
Semiwater gas.
The synthesis ammonia semiwater gas composition of the present embodiment is as follows：
Temperature：≤40℃
Pressure：0.01MPa(G)
As shown in figure 1, desulfurizing tower A~C totally 3 composition alternating temperature desulphurizing and regenerating devices, load from down to up in desulfurizing tower according to
Secondary is filler and desulfurizing agent, the desulfurization of operation single column, single column heating, single column cooling, foreign gas cooling Recovered sulphur alternating temperature desulfurization
Reproducer；And when Fig. 2 shows single column desulfurization, single column heating, single column is cooled down, foreign gas cools down sulphur alternating temperature desulfurization regeneration
Sequence figure (normal pressure absorption), wherein, TL represents desulfurization in Fig. 2, and TR represents hot reactivation, and LQ represents cooling.
Now by taking A towers as an example, compares figure 1 and Fig. 2 illustrate the present embodiment alternating temperature desulphurizing and regenerating device desulfurizing tower in a circulation
During technical process.Valve 1A and 2A, the desulfurizing adsorbent that semiwater gas enters in desulfurizing tower A, desulfurizing tower A are opened simultaneously
Property the organic sulfur and inorganic sulfur in semiwater gas are changed into elemental sulfur, the purified gas after desulfurization enter next workshop section.Desulfurization
After desulfurizing agent desulfurization saturation in tower A, simple substance sulphur undergoes following regeneration step in desulfurizing agent：
The first step：Valve 4A and 5A are opened simultaneously, are 350 DEG C of high temperature circulation gas with the temperature come from circulating gas heater
Heated into the desulfurizing agent in desulfurizing tower A；
Second step：The circulating air in desulfurizing tower A after desulfurizing agent is heated by valve 5A to enter outside sulfur recovery cooler
The normal temperature air cooling come, less than 150 DEG C are cooled to by circulating air temperature, while obtaining Molten sulphur.After desulfurizing agent is heated
Circulating air temperature when being less than 150 DEG C, stop with external normal temperature air cooling；
3rd step：The circulating air come out from sulfur recovery cooler is cooled with circulating water into water cooler, will circulate air cooling
But normal temperature is arrived；
4th step：The normal temperature circulation gas come out from water cooler, after air blower boosts to 20KPa, by opening valve
3C and 6C enters in the desulfurizing tower C for having completed sulphur parsing, and the desulfurizing agent in desulfurizing tower C is cooled into desulfurization temperature 40-50
℃；
5th step：The circulating air after desulfurizing agent in desulfurizing tower C is cooled down, circulating air is heated into circulating gas heater
350 DEG C, subsequently into the desulfurizing agent thermal regeneration in desulfurizing tower A；
6th step：After the simple substance sulphur of desulfurizing agent in desulfurizing tower A is parsed, valve 4A and 5A, stopping temperature being closed
Spend and the desulfurizing agent in desulfurizing tower A is heated for 350 DEG C of high temperature circulation gas.Then, valve 3A and 6A are opened, is come out with water cooler
Normal temperature circulation gas the desulfurizing agent in desulfurizing tower A is cooled to 40-50 DEG C of desulfurization temperature,
So, the desulfurizing agent in desulfurizing tower A just completes regeneration, is again introduced into semiwater gas and carries out desulfurization, into next
Individual cycle period.
So far, desulfurizing tower A completes a circulation, and next circulation can be entered again.Desulfurizing tower B~C is followed with desulfurizing tower A's
Ring step is the same, is simply offset from each other on the time, sees Fig. 1 and Fig. 2.
Desulfurizing tower in desulfurization state can be 1 or more than 1, and particular number is according to superficial linear velocity in a column, operating pressure
Determined with processing tolerance, pipe insulation of the present apparatus higher than normal temperature and heat tracing.
The present embodiment result has saved substantial amounts of desulfurizing agent to obtain high-purity simple substance sulphur, and without waste gas discharge,
The waste residue of generation is free of pollutant, had both obtained good economic benefit, environmental pollution is reduced again.
For the present embodiment, operating cost 50% or so is saved using the present invention compared with prior art.
Embodiments of the invention 2
The composition of this example Sulfur Contained Raw Gas, pressure and temperature are identical with embodiment 1.
As shown in figure 3, desulfurizing tower A~C totally 3 composition alternating temperature desulphurizing and regenerating devices, load from down to up in desulfurizing tower according to
Secondary is that the circulation air cooling after filler and desulfurizing agent, the desulfurization of operation single column, single column heating, single column cooling, cooling tower but returns sulphur
Alternating temperature desulfurization regeneration program；And Fig. 4 shows the circulation air cooling sulphur after single column desulfurization, single column heating, single column cooling, cooling tower
Sulphur alternating temperature desulfurization regeneration timing diagram (normal pressure absorption), wherein, TL represents desulfurization in Fig. 4, and TR represents hot reactivation, and LQ represents cold
But.
Now by taking A towers as an example, compares figure 3 and Fig. 4 illustrate the present embodiment alternating temperature desulphurizing and regenerating device desulfurizing tower in a circulation
During technical process.Valve 1A and 2A, the desulfurizing adsorbent that semiwater gas enters in desulfurizing tower A, desulfurizing tower A are opened simultaneously
Property the organic sulfur and inorganic sulfur in semiwater gas are changed into elemental sulfur, the purified gas after desulfurization enter next workshop section.Desulfurization
After desulfurizing agent desulfurization saturation in tower A, simple substance sulphur undergoes following regeneration step in desulfurizing agent：
The first step：Valve 4A and 5A are opened simultaneously, are 350 DEG C of high temperature circulation gas with the temperature come from circulating gas heater
Heated into the desulfurizing agent in desulfurizing tower A；
Second step：Heat circulating air in desulfurizing tower A after desulfurizing agent and sulfur recovery cooler is entered with ' the by valve 5A
Five steps ' the circulation air cooling after desulfurizing agent in desulfurizing tower C is cooled down, circulating air temperature is cooled down less than 150 DEG C, while obtaining liquid
Sulphur.Temperature after high temperature circulation gas heats desulfurizing agent in desulfurizing tower A is de- less than or equal in ' the 5th step ' cooling desulfurizing tower C
During circulating air temperature after sulphur agent, the circulating air in ' the 5th step ' cooling desulfurizing tower C after desulfurizing agent does not enter sulphur recovery cooling
Device, enters circulating air heating gas from bypass valve and is heated；
3rd step：The circulating air come out from sulfur recovery cooler is cooled with circulating water into water cooler, will circulate air cooling
But normal temperature is arrived；
4th step：The normal temperature circulation gas come out from water cooler, after air blower boosts to 20KPa, by opening valve
3C and 6C enters in the desulfurizing tower C for having completed sulphur parsing, and the desulfurizing agent in desulfurizing tower C is cooled into desulfurization temperature 40-50
℃；
5th step：The circulating air after desulfurizing agent in desulfurizing tower C is cooled down, sulfur recovery cooler is introduced into by valve 6C cold
But the circulating air in heating desulfurizing tower A after desulfurizing agent, enters back into circulating gas heater and circulating air is heated into 350 DEG C, Ran Houjin
Enter the desulfurizing agent thermal regeneration in desulfurizing tower A；
6th step：After the simple substance sulphur of desulfurizing agent in desulfurizing tower A is parsed, valve 4A and 5A, stopping temperature being closed
Spend and the desulfurizing agent in desulfurizing tower A is heated for 350 DEG C of high temperature circulation gas.Then, valve 3A and 6A are opened, is come out with water cooler
Normal temperature circulation gas the desulfurizing agent in desulfurizing tower A is cooled to 40-50 DEG C of desulfurization temperature,
So, the desulfurizing agent in desulfurizing tower A just completes regeneration, is again introduced into semiwater gas and carries out desulfurization, into next
Individual cycle period.
So far, desulfurizing tower A completes a circulation, and next circulation can be entered again.Desulfurizing tower B~C is followed with desulfurizing tower A's
Ring step is the same, is simply offset from each other on the time, sees Fig. 3 and Fig. 4.
Desulfurizing tower in desulfurization state can be 1 or more than 1, and particular number is according to superficial linear velocity in a column, operating pressure
Determined with processing tolerance, pipe insulation of the present apparatus higher than normal temperature and heat tracing.
The present embodiment result has saved substantial amounts of desulfurizing agent to obtain high-purity simple substance sulphur, and without waste gas discharge,
The waste residue of generation is free of pollutant, had both obtained good economic benefit, environmental pollution is reduced again.
For the present embodiment, operating cost 60% or so is saved using the present invention compared with prior art.
Embodiments of the invention 3
The composition of this example Sulfur Contained Raw Gas, pressure and temperature are identical with embodiment 1.
As shown in figure 5, desulfurizing tower A~D totally 4 composition alternating temperature desulphurizing and regenerating devices, load from down to up in desulfurizing tower according to
Secondary is the circulating air cooling Recovered sulphur after filler and desulfurizing agent, the desulfurization of operation single column, the heating of two towers, single column cooling, cooling tower
Alternating temperature desulfurization regeneration program；And Fig. 6 shows the circulation air cooling sulphur after single column desulfurization, the heating of two towers, single column cooling, cooling tower
Sulphur alternating temperature desulfurization regeneration timing diagram (normal pressure absorption), wherein, TL represents the circulation after desulfurization, DJR expression sulphur recoveries in Fig. 6
Gas hot reactivation, GJR represents the circulating air hot reactivation after heater, and LQ represents cooling.
Now by taking A towers as an example, compares figure 5 and Fig. 6 illustrate the present embodiment alternating temperature desulphurizing and regenerating device desulfurizing tower in a circulation
During technical process.Valve 1A and 2A, the desulfurizing adsorbent that semiwater gas enters in desulfurizing tower A, desulfurizing tower A are opened simultaneously
Property the organic sulfur and inorganic sulfur in semiwater gas are changed into elemental sulfur, the purified gas after desulfurization enter next workshop section.Desulfurization
After desulfurizing agent desulfurization saturation in tower A, simple substance sulphur undergoes following regeneration step in desulfurizing agent：
The first step：First open valve 4A and 8A, with come out from sulfur recovery cooler reclaimed sulphur circulating air enter
Desulfurizing agent in desulfurizing tower A is heated, then opens valve 5A and 6A, with from circulating gas heater come temperature be 350 DEG C
The desulfurizing agent that high temperature circulation gas enters in desulfurizing tower A is heated；
Second step：High temperature circulation gas enters after the desulfurizing agent heating in desulfurizing tower A, and it is cold to enter sulphur recovery by valve 6A
But circulation air cooling of the device after desulfurizing agent in ' the 5th step ' cooling desulfurizing tower D, cools down less than 150 DEG C, together by circulating air temperature
When obtain Molten sulphur.Temperature after high temperature circulation gas heats desulfurizing agent in desulfurizing tower A is cooled down less than or equal to ' the 5th step '
In desulfurizing tower D during circulating air temperature after desulfurizing agent, the circulating air in ' the 5th step ' cooling desulfurizing tower D after desulfurizing agent does not enter sulphur
Sulphur reclaims cooler, and entering circulating air heating gas from bypass valve is heated；
3rd step：The circulating air come out from sulfur recovery cooler desulfurizing tower B is introduced into by valve 4B and 8B in it is de-
Sulphur agent is heated, and is then cooled with circulating water again by valve 8B into water cooler, circulating air is cooled into normal temperature；
4th step：The normal temperature circulation gas come out from water cooler, after air blower boosts to 20KPa, by opening valve
3D and 7D enters in the desulfurizing tower D for having completed sulphur parsing, and the desulfurizing agent in desulfurizing tower D is cooled into desulfurization temperature 40-50
℃；
5th step：The circulating air after desulfurizing agent in desulfurizing tower D is cooled down, sulfur recovery cooler is introduced into by valve 7D cold
But enter the circulating air of sulfur recovery cooler by valve 6A, enter back into circulating gas heater and circulating air is heated to 350 DEG C,
Subsequently into the desulfurizing agent thermal regeneration in desulfurizing tower A；
6th step：After the simple substance sulphur of desulfurizing agent in desulfurizing tower A is parsed, valve 5A and 6A, stopping temperature being closed
Spend and the desulfurizing agent in desulfurizing tower A is heated for 350 DEG C of high temperature circulation gas.Then, valve 3A and 7A are opened, is come out with water cooler
Normal temperature circulation gas the desulfurizing agent in desulfurizing tower A is cooled to 40-50 DEG C of desulfurization temperature,
So, the desulfurizing agent in desulfurizing tower A just completes regeneration, is again introduced into semiwater gas and carries out desulfurization, into next
Individual cycle period.
So far, desulfurizing tower A completes a circulation, and next circulation can be entered again.Desulfurizing tower B~D is followed with desulfurizing tower A's
Ring step is the same, is simply offset from each other on the time, sees Fig. 5 and Fig. 6.
Desulfurizing tower in desulfurization state can be 1 or more than 1, and particular number is according to superficial linear velocity in a column, operating pressure
Determined with processing tolerance, pipe insulation of the present apparatus higher than normal temperature and heat tracing.
The present embodiment result has saved substantial amounts of desulfurizing agent to obtain high-purity simple substance sulphur, and without waste gas discharge,
The waste residue of generation is free of pollutant, had both obtained good economic benefit, environmental pollution is reduced again.
For the present embodiment, operating cost 70% or so is saved using the present invention compared with prior art.
Embodiments of the invention 4
The composition of this example Sulfur Contained Raw Gas, pressure and temperature are identical with embodiment 1.
As shown in fig. 7, desulfurizing tower A~E totally 5 composition alternating temperature desulphurizing and regenerating devices, load from down to up in desulfurizing tower according to
Secondary is the circulating air cooling Recovered sulphur after filler and desulfurizing agent, the desulfurization of operation single column, the heating of two towers, two tower coolers, cooling tower
Alternating temperature desulfurization regeneration program；And Fig. 8 shows the circulation air cooling sulphur after single column desulfurization, the heating of two towers, two tower coolers, cooling tower
Sulphur alternating temperature desulfurization regeneration timing diagram (normal pressure absorption), wherein, TL represents the circulation after desulfurization, DJR expression sulphur recoveries in Fig. 8
Gas hot reactivation, GJR represents the circulating air hot reactivation after heater, and GLQ represents High-temperature cooling, and DLQ represents sub-cooled.
Now by taking A towers as an example, compares figure 7 and Fig. 8 illustrate the present embodiment alternating temperature desulphurizing and regenerating device desulfurizing tower in a circulation
During technical process.Valve 1A and 2A, the desulfurizing adsorbent that semiwater gas enters in desulfurizing tower A, desulfurizing tower A are opened simultaneously
Property the organic sulfur and inorganic sulfur in semiwater gas are changed into elemental sulfur, the purified gas after desulfurization enter next workshop section.Desulfurization
After desulfurizing agent desulfurization saturation in tower A, simple substance sulphur undergoes following regeneration step in desulfurizing agent：
The first step：First open valve 4A and 9A, with come out from sulfur recovery cooler reclaimed sulphur circulating air enter
Desulfurizing agent in desulfurizing tower A is heated, then opens valve 6A and 7A, with from circulating gas heater come temperature be 350 DEG C
The desulfurizing agent that high temperature circulation gas enters in desulfurizing tower A is heated；
Second step：High temperature circulation gas enters after the desulfurizing agent heating in desulfurizing tower A, and it is cold to enter sulphur recovery by valve 7A
But the circulating air that device is cooled down with ' the 5th step ' in desulfurizing tower E after desulfurizing agent exchanges heat, and circulating air temperature is cooled down into less than 150 DEG C, together
When obtain Molten sulphur.Temperature after high temperature circulation gas heats desulfurizing agent in desulfurizing tower A is cooled down less than or equal to ' the 5th step '
In desulfurizing tower E during circulating air temperature after desulfurizing agent, the circulating air in ' the 5th step ' cooling desulfurizing tower E after desulfurizing agent does not enter sulphur
Sulphur reclaims cooler, and entering circulating air heating gas from bypass valve is heated；
3rd step：The circulating air come out from sulfur recovery cooler desulfurizing tower B is introduced into by valve 4B and 9B in it is de-
Sulphur agent is heated, and is then cooled with circulating water again by valve 9B into water cooler, circulating air is cooled into normal temperature；
4th step：The normal temperature circulation gas come out from water cooler, after air blower boosts to 20KPa, by opening valve
3D and 8D enters in the desulfurizing tower D for having completed to regenerate and tentatively cool down, and the desulfurizing agent in desulfurizing tower D is cooled into desulfurization temperature
40-50 DEG C, enter while opening valve 8E and 5E in the desulfurizing tower E for having completed regeneration, cool down the desulfurizing agent in desulfurizing tower E；
5th step：The circulating air after desulfurizing agent in desulfurizing tower E is cooled down, sulfur recovery cooler is introduced into by valve 5E cold
But the circulating air after desulfurizing agent is de- in heating desulfurizing tower A, enters back into circulating gas heater and circulating air is heated into 350 DEG C, then
Into the desulfurizing agent thermal regeneration in desulfurizing tower A.
6th step：After the simple substance sulphur of desulfurizing agent in desulfurizing tower A is parsed, valve 4A and 9A, stopping temperature being closed
Spend and the desulfurizing agent in desulfurizing tower A is heated for 350 DEG C of high temperature circulation gas.Then, valve 8A and 5A are first opened, passes through valve 8E
The desulfurizing agent in desulfurizing tower A is cooled down with the circulating air after desulfurizing agent in cooling desulfurizing tower E, then first opens valve 3A and 8A, is used
Desulfurizing agent in desulfurizing tower A is cooled to 40-50 DEG C of desulfurization temperature by the normal temperature circulation gas that water cooler comes out,
So, the desulfurizing agent in desulfurizing tower A just completes regeneration, is again introduced into semiwater gas and carries out desulfurization, into next
Individual cycle period.
So far, desulfurizing tower A completes a circulation, and next circulation can be entered again.Desulfurizing tower B~E is followed with desulfurizing tower A's
Ring step is the same, is simply offset from each other on the time, sees Fig. 7 and Fig. 8.
Desulfurizing tower in desulfurization state can be 1 or more than 1, and particular number is according to superficial linear velocity in a column, operating pressure
Determined with processing tolerance, pipe insulation of the present apparatus higher than normal temperature and heat tracing.
The present embodiment result has saved substantial amounts of desulfurizing agent to obtain high-purity simple substance sulphur, and without waste gas discharge,
The waste residue of generation is free of pollutant, had both obtained good economic benefit, environmental pollution is reduced again.
For the present embodiment, operating cost 75% or so is saved using the present invention compared with prior art.
Embodiments of the invention 5
The composition of this example Sulfur Contained Raw Gas, pressure and temperature are identical with embodiment 1.
As shown in figure 9, desulfurizing tower A~F totally 6 composition alternating temperature desulphurizing and regenerating devices, load from down to up in desulfurizing tower according to
Secondary is that the circulation air cooling after filler and desulfurizing agent, the desulfurization of operation single column, the heating of three towers, two tower coolers, cooling tower but returns sulphur
Alternating temperature desulfurization regeneration program；And Figure 10 shows the circulation air cooling after single column desulfurization, the heating of three towers, two tower coolers, cooling tower
Sulphur alternating temperature desulfurization regeneration timing diagram (normal pressure absorption), wherein, TL is represented after desulfurization, DJR1 expression sulphur recoveries in Figure 10
Circulating air hot reactivation, DJR2 expressions are heated again after heating DJR1 with the circulating air after sulphur recovery, and GJR is represented after heater
Circulating air hot reactivation, GLQ represents High-temperature cooling, and DLQ represents sub-cooled.
Now by taking A towers as an example, compares figure 9 and Figure 10 illustrate that the present embodiment alternating temperature desulphurizing and regenerating device desulfurizing tower is followed at one
Technical process during ring.Valve 1A and 2A, the desulfurizing agent choosing that semiwater gas enters in desulfurizing tower A, desulfurizing tower A are opened simultaneously
The organic sulfur and inorganic sulfur in semiwater gas are changed into selecting property elemental sulfur, the purified gas after desulfurization enters next workshop section.It is de-
After desulfurizing agent desulfurization saturation in sulphur tower A, simple substance sulphur undergoes following regeneration step in desulfurizing agent：
The first step：Valve 4A and 9A are opened simultaneously, enter desulfurizing tower from valve 9F with heating desulfurizing tower F circulating air first
Desulfurizing agent in A is heated, then opens the circulating air that valve 5A and 9A has reclaimed sulphur with being come out from sulfur recovery cooler
Heated into the desulfurizing agent in desulfurizing tower A, finally open valve 7A and 8A with from circulating gas heater come temperature be 350
DEG C high temperature circulation gas enter desulfurizing tower A in desulfurizing agent heated；
Second step：High temperature circulation gas enters after the desulfurizing agent heating in desulfurizing tower A, and it is cold to enter sulphur recovery by valve 8A
But the circulating air that device is cooled down with ' the 5th step ' in desulfurizing tower F after desulfurizing agent exchanges heat, and circulating air temperature is cooled down into less than 150 DEG C, together
When obtain Molten sulphur.Temperature after high temperature circulation gas heats desulfurizing agent in desulfurizing tower A is cooled down less than or equal to ' the 5th step '
In desulfurizing tower F during circulating air temperature after desulfurizing agent, the circulating air in ' the 5th step ' cooling desulfurizing tower F after desulfurizing agent does not enter sulphur
Sulphur reclaims cooler, and entering circulating air heating gas from bypass valve is heated；
3rd step：The circulating air come out from sulfur recovery cooler desulfurizing tower C is introduced into by valve 5C and 9C in it is de-
Sulphur agent is heated, and is then heated again by valve 9B and the 4B desulfurizing agent entered in desulfurizing tower B, is entered water-cooled finally by valve 4B
Device is cooled with circulating water, and circulating air is cooled into normal temperature；
4th step：The normal temperature circulation gas come out from water cooler, after air blower boosts to 20KPa, by opening valve
3E and 10E enters in the desulfurizing tower E for having completed to regenerate and tentatively cool down, and the desulfurizing agent in desulfurizing tower E is cooled into desulfurization temperature
40-50 DEG C of degree, enters in the desulfurizing tower F for having completed regeneration while opening valve 10F and 6F, cools down the desulfurization in desulfurizing tower F
Agent；
5th step：The circulating air after desulfurizing agent in desulfurizing tower A is cooled down, sulfur recovery cooler is introduced into by valve 6A cold
But the circulating air after heating desulfurizing agent, enters back into circulating gas heater and circulating air is heated into 350 DEG C, subsequently into desulfurizing tower A
In desulfurizing agent thermal regeneration.
6th step：After the simple substance sulphur of desulfurizing agent in desulfurizing tower A is parsed, valve 4A and 9A, stopping temperature being closed
Spend and the desulfurizing agent in desulfurizing tower A is heated for 350 DEG C of high temperature circulation gas.Then, valve 10A and 6A are first opened, passes through valve
10F cools down the desulfurizing agent in desulfurizing tower A with the circulating air in cooling desulfurizing tower F after desulfurizing agent, then first open valve 3A and
Desulfurizing agent in desulfurizing tower A is cooled to 40-50 DEG C of desulfurization temperature by 10A, the normal temperature circulation gas come out with water cooler,
When the desulfurizing agent in desulfurizing tower A is heated to 290 DEG C, stop heating the desulfurizing agent in desulfurizing tower A, so,
Desulfurizing agent in desulfurizing tower A just completes regeneration, is again introduced into semiwater gas and carries out desulfurization, into next cycle period.
So far, desulfurizing tower A completes a circulation, and next circulation can be entered again.Desulfurizing tower B~F is followed with desulfurizing tower A's
Ring step is the same, is simply offset from each other on the time, sees Fig. 9 and Figure 10.
Desulfurizing tower in desulfurization state can be 1 or more than 1, and particular number is according to superficial linear velocity in a column, operating pressure
Determined with processing tolerance, pipe insulation of the present apparatus higher than normal temperature and heat tracing.
The present embodiment result has saved substantial amounts of desulfurizing agent to obtain high-purity simple substance sulphur, and without waste gas discharge,
The waste residue of generation is free of pollutant, had both obtained good economic benefit, environmental pollution is reduced again.
For the present embodiment, operating cost 80% or so is saved using the present invention compared with prior art.
In above-mentioned 5 embodiments, when raw gas pressure is more than or equal to 20KPa, after desulfurizing tower desulfurization terminates, first will
Gas is released from bottom and drops to normal pressure in desulfurizing tower, then is regenerated since the first step.
Claims (15)
1. the renovation process of desulfurizing agent simple substance sulphur in a kind of desulfurizing tower, it is characterised in that Sulfur Contained Raw Gas, which is initially entered, to be equipped with
In the desulfurizing tower of desulfurizing agent, sulfide is changed into list by the desulfurizing agent that the purified gas after desulfurization enters in subsequent processing, desulfurizing tower
After matter sulphur, desulfurizing agent desulfurization saturation, simple substance sulphur undergoes following regeneration step in desulfurizing agent：
The first step：With from circulating gas heater come high temperature circulation gas heated into desulfurizing agent, desulfurizing agent temperature heat
To more than the fusing point of simple substance sulphur；
Second step：Enter sulfur recovery cooler after high temperature circulation gas heating desulfurizing agent to be cooled down with external cooling gas, will follow
Ring temperature degree is cooled to more than the fusing point of simple substance sulphur, while obtaining Molten sulphur；
3rd step：The circulating air come out from sulfur recovery cooler enters water cooler and exchanged heat with recirculated water, and circulating air is cooled to
Normal temperature；
4th step：The normal temperature circulation gas come out from water cooler, after power-equipment boosts, into the desulfurization for having completed regeneration
In agent, desulfurizing agent is cooled to desulfurization temperature；
5th step：The circulating air after desulfurizing agent is cooled down, after being heated into circulating gas heater, into another completion desulfurization
Desulfurizing agent thermal regeneration in desulfurizing tower；
6th step：After the simple substance sulphur of desulfurizing agent in desulfurizing tower is parsed, stopping is with high temperature circulation gas in desulfurizing tower
Desulfurizing agent is heated, and then, the desulfurizing agent in desulfurizing tower is cooled to desulfurization temperature by the normal temperature circulation gas come out with water cooler,
So, the desulfurizing agent in desulfurizing tower just completes regeneration, is again introduced into Sulfur Contained Raw Gas and carries out desulfurization, is followed into next
The ring cycle.
2. the renovation process of desulfurizing agent simple substance sulphur in a kind of desulfurizing tower according to claim 1, it is characterised in that ' the
One step ' after desulfurizing agent saturation in desulfurizing tower, first with the circulating air come out from sulfur recovery cooler into being heated, then
With from circulating gas heater come high temperature circulation gas heated into desulfurizing agent, desulfurizing agent temperature is heated to simple substance sulphur
It is more than fusing point；The circulating air that ' the 3rd step ' comes out from sulfur recovery cooler simultaneously adds in being introduced into the desulfurizing agent for just completing desulfurization
Heat, then enters back into water cooler and is exchanged heat with recirculated water, circulating air is cooled into normal temperature.
3. the renovation process of desulfurizing agent simple substance sulphur in a kind of desulfurizing tower according to claim 1, it is characterised in that ' the
One step ' after desulfurizing agent saturation in desulfurizing tower, first heated with the circulating air heated in other desulfurizing towers after desulfurizing agent, then with from sulphur
Sulphur reclaims the circulating air that comes out of cooler into being heated, and is finally entered with the high temperature circulation gas come from circulating gas heater and taken off
Sulphur agent is heated, and desulfurizing agent temperature is heated to more than the fusing point of simple substance sulphur；' the 3rd step ' is cooled down from sulphur recovery simultaneously
The circulating air that device comes out, which is introduced into, have been completed to heat in the desulfurizing tower of heating for the first time, enters back into the desulfurizing agent for just completing desulfurization
Middle heating, finally enters water cooler and is exchanged heat with recirculated water, circulating air is cooled into normal temperature.
4. the renovation process of desulfurizing agent simple substance sulphur in a kind of desulfurizing tower according to claim 1, it is characterised in that ' the
One step ' after desulfurizing agent saturation in desulfurizing tower, first carry out 2 with the different temperatures circulating air heated in other desulfurizing towers after desulfurizing agent
Secondary or more than 2 times series connection heating, then with the circulating air come out from sulfur recovery cooler into being heated, finally with from circulation
Hot-air heater come high temperature circulation gas heated into desulfurizing agent, desulfurizing agent temperature be heated to the fusing point of simple substance sulphur with
On；The circulating air that ' the 3rd step ' comes out from sulfur recovery cooler simultaneously is introduced into completed to heat for 2 times or more than 2 times de-
Heated in sulphur tower, then the heating into the desulfurizing agent of 2 or more than 2 completion desulfurization of connecting, water cooler is finally entered back into following
Ring water is exchanged heat, and circulating air is cooled into normal temperature.
5. the renovation process of desulfurizing agent simple substance sulphur in a kind of desulfurizing tower according to claim 1-4, it is characterised in that
The normal temperature circulation gas that ' the 4th step ' comes out from water cooler, after power-equipment boosts, series connection has entered 2 or more than 2
Desulfurizing agent in the different desulfurizing tower of temperature through completing regeneration, and desulfurizing agent in the desulfurizing tower of first entrance is cooled to desulfurization
Temperature.
6. the renovation process of desulfurizing agent simple substance sulphur in a kind of desulfurizing tower according to claim 1-5, it is characterised in that ' the
Two steps ' high temperature circulating air heating desulfurizing agent after enter sulfur recovery cooler with ' the 5th step ' cool down desulfurizing agent after circulating air
Cooling, the temperature that high temperature circulation gas is heated after desulfurizing agent is cooled to more than the fusing point of simple substance sulphur, while obtaining Molten sulphur；
The circulating air in ' the 5th step ' after cooling desulfurizing agent, is introduced into the heating desulfurization of sulfur recovery cooler cooling down high-temperature circulating air simultaneously
Circulating air after agent, enter back into circulating gas heater be heated after, into another completion desulfurization desulfurizing tower in desulfurizing agent add
Hot recycling.
7. the renovation process of desulfurizing agent simple substance sulphur in a kind of desulfurizing tower according to claim 1-6, it is characterised in that when
Temperature after ' second step ' high temperature circulating air heating desulfurizing agent cools down the circulation air cooling temperature after desulfurizing agent less than ' the 5th step '
When spending, the circulating air in ' the 5th step ' after cooling desulfurizing agent does not enter sulfur recovery cooler, but be directly entered by bypass
After circulating gas heater is heated, the desulfurizing agent thermal regeneration into the desulfurizing tower of another completion desulfurization.
8. the renovation process of desulfurizing agent simple substance sulphur in a kind of desulfurizing tower according to claim 1-7, it is characterised in that the
One step：With from circulating gas heater come high temperature circulation gas heated into desulfurizing agent, desulfurizing agent temperature heat 260 DEG C-
450℃。
9. the renovation process of simple substance sulphur in a kind of desulfurizing agent according to claim 1-8, it is characterised in that second step：Plus
Circulating air after thermally desulfurizing agent enters sulfur recovery cooler and exchanged heat with cryogenic gas, by circulating air temperature be cooled to 130 DEG C with
On, while obtaining Molten sulphur.
10. the renovation process of desulfurizing agent simple substance sulphur in a kind of desulfurizing tower according to claim 1-9, it is characterised in that contain
Sulfur feedstock atmospheric pressure is 0~10.0MPa (gauge pressure).
11. the renovation process of desulfurizing agent simple substance sulphur in a kind of desulfurizing tower according to claim 1-10, it is characterised in that
Circulation atmospheric pressure in heating and cooling desulfurizing agent is 0.001~0.2MPa (gauge pressure).
12. the renovation process of desulfurizing agent simple substance sulphur in a kind of desulfurizing tower according to claim 1-11, it is characterised in that
All pipelines are incubated and heat tracing.
13. the renovation process of desulfurizing agent simple substance sulphur in a kind of desulfurizing tower according to claim 1-12, it is characterised in that
When Sulfur Contained Raw Gas pressure is higher than normal pressure, in desulfurizing tower after desulfurizing agent saturation, desulfurizing tower pressure is first dropped into normal pressure and carried out again
Thermal regeneration.
14. the renovation process of desulfurizing agent simple substance sulphur in a kind of desulfurizing tower according to claim 1-13, it is characterised in that
Desulfurizing agent is various activated carbons, various molecular sieves, silica gel, aluminum oxide and various Special desulfurizing agent.
15. the renovation process of desulfurizing agent simple substance sulphur in a kind of desulfurizing tower according to claim 1-14, it is characterised in that
Circulating air oxygen content in heating and cooling desulfurizing agent is less than 0.1% (V).
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| PCT/CN2018/083634 WO2018192542A1 (en) | 2017-04-19 | 2018-04-19 | Regeneration method for desulfurizer elementary substance sulfur in desulfurization column |
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| CN107188132A (en) * | 2017-07-28 | 2017-09-22 | 四川天科技股份有限公司 | A kind of desulfurizer regeneration produces sulphur technique and system |
| WO2018192542A1 (en) * | 2017-04-19 | 2018-10-25 | 成都天立化工科技有限公司 | Regeneration method for desulfurizer elementary substance sulfur in desulfurization column |
| CN109678122A (en) * | 2019-02-27 | 2019-04-26 | 西安元创化工科技股份有限公司 | A kind of resource utilization method of wet desulfurizing process sulfur sludge |
| CN111205899A (en) * | 2020-02-24 | 2020-05-29 | 中国石油工程建设有限公司 | Molecular sieve adsorption device and process for treating natural gas condensate |
| CN113086951A (en) * | 2021-03-24 | 2021-07-09 | 武汉科技大学 | Process for preparing high-purity sulfur by hot blowing desorption method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2018192542A1 (en) * | 2017-04-19 | 2018-10-25 | 成都天立化工科技有限公司 | Regeneration method for desulfurizer elementary substance sulfur in desulfurization column |
| CN107188132A (en) * | 2017-07-28 | 2017-09-22 | 四川天科技股份有限公司 | A kind of desulfurizer regeneration produces sulphur technique and system |
| CN109678122A (en) * | 2019-02-27 | 2019-04-26 | 西安元创化工科技股份有限公司 | A kind of resource utilization method of wet desulfurizing process sulfur sludge |
| CN109678122B (en) * | 2019-02-27 | 2022-03-04 | 西安元创化工科技股份有限公司 | Resource utilization method of sulfur waste residue in wet desulphurization process |
| CN111205899A (en) * | 2020-02-24 | 2020-05-29 | 中国石油工程建设有限公司 | Molecular sieve adsorption device and process for treating natural gas condensate |
| CN113086951A (en) * | 2021-03-24 | 2021-07-09 | 武汉科技大学 | Process for preparing high-purity sulfur by hot blowing desorption method |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018192542A1 (en) | 2018-10-25 |
| CN106955595B (en) | 2020-03-20 |
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