CN106902625A - A kind of hypergravity Claus tail gases desulphurization system device and application - Google Patents
A kind of hypergravity Claus tail gases desulphurization system device and application Download PDFInfo
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- CN106902625A CN106902625A CN201510977310.3A CN201510977310A CN106902625A CN 106902625 A CN106902625 A CN 106902625A CN 201510977310 A CN201510977310 A CN 201510977310A CN 106902625 A CN106902625 A CN 106902625A
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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
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
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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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2252/00—Absorbents, i.e. solvents and liquid materials for gas absorption
- B01D2252/20—Organic absorbents
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- B01D2252/20489—Alkanolamines with two or more hydroxyl groups
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/30—Sulfur compounds
- B01D2257/302—Sulfur oxides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/30—Sulfur compounds
- B01D2257/304—Hydrogen sulfide
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Abstract
The present invention discloses a kind of hypergravity Claus tail gases desulphurization system device and application.The system and device includes gas heating system, sulfiding gas hydrogenation system, gas system, the first liquid separation system, the second liquid separation system, hypergravity absorbing reaction system, rich solution system and rich solution regenerative system.The tail gas is through gas heating system and sulfiding gas hydrogenation system, enter gas system afterwards, enter hypergravity absorbing reaction system desulfurization after removing entrained liquids through the first liquid separation system again, enter the second liquid separation system by the gas after desulfurization, the liquid for separating out is used into rich solution system circulation, and the gas isolated is discharged into air after being up to state standards after tail gas burning furnace burning.The present invention uses high-gravity technology on the basis of traditional Crouse's sulfur removal technology, realize deep removal high concentration hydrogen sulfide gas, supergravity reactor has that mass-transfer efficiency is high, pressure drop is low, equipment is small, the low feature of operating cost, has important application value and wide industrial prospect in depriving hydrogen sulphide field.
Description
Technical field
The present invention relates to sulfiding gas cleaning and desulfurization, belong to field of Environment Protection.It is super more particularly, to one kind
Gravity Claus tail gases desulphurization system device and application.
Background technology
Sulfurous gas (SO2、COS、SO3、H2S etc.) it is the main pollutant for causing atmosphere pollution
One of, it is also the main factor of acid rain formation.Acid rain causes that forest withers, and soil and surface water are acidified,
Vegetation deterioration, grain, vegetables and the fruit underproduction, metal and a large amount of buildings are corroded.Relevant research shows,
1 ton of SO often discharges in China2About 20,000 yuan of the economic loss for causing, this means that annual China because of SO2
Discharge causes the economic loss to have hundreds billion of units.Therefore, the atmosphere pollution that China came into effect from 2014
SO in thing discharge standard GB16297-1996 clear stipulaties discharge flue gas2Content is less than 200mgm- 3。
In order to reach SO2Discharge index, develop more efficient SO2Pollution control technology and equipment turn into air
The key of pollution control.
Also substantial amounts of sulfide, such as SO are contained in oil refinery process gas2、COS、H2S etc..And nowadays
Oil plant is largely recycled using claus process to its Process Gas, and traditional claus process is one
The multiple-unit treatment technology of comparative maturity is planted, it is substantially by hydrogen sulfide and sulfur dioxide reaction generation sulphur
And the method for reclaiming Sulphur ressource.But the conversion ratio of claus reaction is usually no more than 97%, causes Ke Lao
This tail gas can contain a certain amount of unreacted H2S and SO2, SO after exhaust combustion2Content is far above 200mg
·m- 3New standard.Therefore need to carry out desulfurization process to the tail gas of claus process discharge.
Industry Claus tail gases are general using conventional suction tower as desulfurization main equipment at present, there is following asking
Topic：
(1) using tower equipment as desulfurization main equipment, due to being limited by mass transport process, so taking
Space is big, quality is big, and installation cost is huge.
(2) because tower center of gravity is higher, it is prone to accidents and maintenance difficult.
(3) traditional tower desulfurizer has that pressure drop is larger, can influence the performance of engine,
Also need to increase by a booster fan if necessary.
(4) desulfuration efficiency is relatively low, the tail gas SO after desulfurizing combustion2Content is extremely difficult to new standard setting.
In view of this, for existing Claus tail gases desulphurization system exist problem, it is necessary to propose a kind of energy
Enough solve the above problems and with the hypergravity Claus tail gases of important application value and industrial prospect
Desulphurization system device.
The content of the invention
It is an object of the present invention to provide a kind of hypergravity Claus tail gases desulphurization system device.This is
Bulk cargo put can effectively solve sulfurous gas purification technique exist space cost and sulfur recovery rate it is substandard
Problem.
It is another object of the present invention to provide a kind of answering for hypergravity Claus tail gases desulphurization system device
With.
High-gravity technology is a new technology for reinforcing mass transfer, mixing and chemical reaction, and the technology is using super
The centrifugal force simulation Elevated Gravity that the rotation of gravity inside reactor rotor is produced is transmitted and reacted to strengthen
Journey, is significantly increased the efficiency of transmission and course of reaction, and supergravity reactor device mainly includes closed
Housing, inside have a rotor for rotation, have ring packing layer on rotor, different fluid is from housing phase
The entrance answered flows into revolving bed, and (i.e. Elevated Gravity) enters under the centrifugal force field in the packing layer of rotation
Row mass transport process, mass transfer rate is than improving the 1-3 order of magnitude in traditional each reactor.It is strong to revolving bed
Changing the general understanding of mass transport process principle is：Fluid be torn under centrifugal force field environment tiny drop,
Brin or liquid film, produce the surface area of substantial amounts of quick renewal, and mass transfer and mixed process are strengthened significantly.
Flue gas desulfurization technique of the prior art, as desulfurization main equipment, is existed all using conventional absorption tower
The problems pointed out in background technology.For absorption tower, hypergravity equipment has miniaturization,
Lightweight, can skid, small pressure drop, efficiency high, stability high and equipment investment and operating cost it is low
Advantage.The characteristics of present invention is using high-gravity technology and claus process, proposes a kind of brand-new overweight
Make every effort to overcome Louth tail gas desulphurizing system device.
Apparatus of the present invention realize deep removal high concentration sulphur in traditional claus process using high-gravity technology
Change hydrogen, high with mass-transfer efficiency, low pressure drop, equipment is small, and operating cost is low, in sulfur removal technology neck
Domain has important application value and industrial prospect.
To reach above-mentioned first purpose, the present invention uses following technical proposals：
A kind of hypergravity Claus tail gases desulphurization system device, the system and device includes gas heating system
1st, sulfiding gas hydrogenation system 2, gas system 3, the first liquid separation system 4, the second liquid separation system 5,
Hypergravity absorbing reaction system 8, rich solution system 6 and rich solution regenerative system；The gas of Crouse's system goes out
Mouth is connected with the gas access of the gas heating system 1；The gas of the gas heating system 1 goes out
Gas access of the outlet of mouth and hydrogen with sulfiding gas hydrogenation system 2 is connected；The vulcanization gas
The gas vent of body hydrogenation system 2 is connected with the gas access of gas system 3；The gas is cold
But the gas vent of system 3 is connected with the gas access of the first liquid separation system 4；First point of liquid system
The gas vent of system 4 is connected with the gas access of hypergravity absorbing reaction system 8；The hypergravity is inhaled
The gas vent for receiving reaction system 8 is connected with the gas access of the second liquid separation system 5；Described second point
The gas vent of liquid system 5 is connected with the gas access of tail gas burning furnace 17；The liquid outlet of cooling water
Liquid inlet with the gas system 3 is connected；The liquid of the hypergravity absorbing reaction system 8
Liquid inlet of the liquid outlet of body outlet and the second liquid separation system 5 with rich solution system 6 is connected；
The liquid outlet of the rich solution system 6 is connected with the liquid inlet of rich solution regenerative system；The rich solution is again
The liquid outlet of raw system is connected with the liquid inlet of hypergravity absorbing reaction system 8；The rich solution is again
The gas of the gas vent discharge of raw system is sent to Crouse's system.
Preferably, the gas heating system 1 includes process heater, the outlet of the process heater
Side is provided with heater, and 200-260 DEG C is heated the gases in sweetening process.
Preferably, the sulfurous gas is mainly the gas containing sulfur dioxide and hydrogen sulfide, and sulfurous gas is first
First pass through after the hydrogenation reactor of Cross unit using two kinds of the heating of low-pressure steam process and electrical heating plus
Heat treatment mode carries out heat treatment makes temperature reach 200-260 DEG C.
Preferably, the built-in absorbing liquid of the hypergravity absorbing reaction system (8)；The absorbing liquid is hydramine
Alkaline solution；The hydramine be selected from N methyldiethanol amine (MDEA), diethylenetriamine (DETA),
One or more in monoethanolamine (MEA) and piperazine (PZ).
Preferably, the absorbing liquid is MDEA solution, but is not limited to MDEA solution.The absorption
Liquid Main Function is to wash containing H2S gases, absorb H2S simultaneously regenerates to the rich solution after absorption.The suction
The reaction equation for receiving liquid absorption sulfurous gas is as follows：
2R3N+H2S==(R3NH)2S (1)
(R3NH)2S+H2S==2R3NHHS (2)
Preferably, the liquid inlet of the hypergravity absorbing reaction system 8 is provided with liquid distribution trough, will inhale
Receive liquid and be evenly distributed on supergravity reactor filler inwall；The gas of hypergravity absorbing reaction system 8 enters
Pressure gauge, real-time monitoring admission pressure are provided with mouthful.
Preferably, the hypergravity absorbing reaction system 8 includes supergravity reactor；The hypergravity is anti-
Device is answered to be provided with gas feed valve, when supergravity reactor runs, valve is opened；The hypergravity reaction
Device is provided with rotatable parts in closed housing, housing and upper lid be provided with liquid import and export and gas enter,
Outlet；The rotatable parts are made up of rotor and filler；Described filler is selected from wire mesh packing, poly- four
Fluorine filler, ceramic packing, structuring filling or structured packing；The liquid-inlet of the supergravity reactor
It is provided with the liquid distribution trough for extending to rotor center cavity zone；The acceleration of gravity of the supergravity reactor
It is 10-1500g.
Preferably, the liquid outlet of the hypergravity absorbing reaction system 8 enters with the liquid of rich solution system 6
Mouth is connected, and the liquid outlet of rich solution system 6 is connected with the liquid inlet of rich solution regenerative system, rich solution
The liquid outlet of regenerative system is connected with the liquid inlet of hypergravity absorbing reaction system 8, will be through regeneration
Absorbing liquid afterwards is re-fed into hypergravity absorbing reaction system 8, forms a liquid phase circulation system.
Preferably, the rich solution in the rich solution regenerative system is the Liquid Residue after desulfurization absorption treatment.Residual
The hydrogen sulfide not purified and the absorbing liquid for absorbing sulfurous gas are rich in liquid.
Preferably, the principle of the rich solution regenerative system is pyrolysis.It is anti-in regenerator or hypergravity
Answer device 11 to be heated by heater, thermally decomposed the absorbing liquid of sulfurous gas after absorption, after collecting decomposition
H2S.Specific reaction equation is as follows：
R3NHHS==R3N+H2S (1)
(R3NH)2S==2R3N+H2S (2)
Preferably, the rich solution regenerative system includes poor liquid bath 14, reboiler 16, flash tank 10, regeneration
Tower or regeneration supergravity reactor 11, the 3rd liquid separation system 13, cooler 12 and heat exchanger 9；It is described
The liquid outlet of rich solution system 6 sequentially passes through the liquid of first circulation pump 7 and heat exchanger 9 and flash tank 10
Import is connected, the liquid outlet of the flash tank 10 and regenerator or regeneration supergravity reactor 11
Liquid inlet is connected, the liquid outlet and poor liquid bath of the regenerator or regeneration supergravity reactor 11
14 liquid inlet is connected, the liquid outlet of the poor liquid bath 14 by second circulation pump 15 with boil again
The liquid-inlet of device 16 is connected, liquid outlet and regenerator or the regeneration hypergravity of the reboiler 16
The liquid inlet of reactor 11 is connected；The gas of the regenerator or regeneration supergravity reactor 11 goes out
Mouth is connected through subcooler 12 with the gas access of the 3rd point of flow container 13, the 3rd point of flow container 13
Gas vent is connected with the gas access of Claus tail gases device；The liquid discharge of the 3rd point of flow container 13
Mouth is connected with the liquid inlet of regenerator or regeneration supergravity reactor 11；The liquid of the poor liquid bath 14
Body outlet sequentially passes through second circulation pump 15 and heat exchanger 9 and the liquid-inlet of hypergravity absorbing reaction system 8
It is connected.
Preferably, it is provided between the liquid inlet of the liquid outlet of the cooling water and gas system 3
First valve；The gas vent of the sulfiding gas hydrogenation system 2 enters with the gas of gas system 3
The second valve is provided between mouthful；The gas vent of first liquid separation system 4 and hypergravity absorbing reaction system
The 3rd valve is provided between the gas access of system 8；The liquid outlet of the hypergravity absorbing reaction system 8
The 4th valve is provided with and the liquid inlet of rich solution system 6 between；The liquid discharge of second liquid separation system 5
The 5th valve is provided between mouth and the liquid inlet of rich solution system 6；The liquid discharge of the rich solution regenerative system
The 6th valve is provided between mouth and the liquid inlet of hypergravity absorbing reaction system 8；The hypergravity absorbs
The 7th valve is provided between the gas access of the gas vent of reaction system 8 and the second liquid separation system 5；Institute
State and be provided with the 8th valve between the gas vent of the second liquid separation system 5 and the gas access of tail gas burning furnace 17
Door.
Preferably, the gas access of hypergravity absorbing reaction system 8 is connected with balance pipe with rich solution system 6,
Prevent the stagnant suction of liquid and suck-back.
Preferably, the Claus tail gases are sulfurous gas, and the sulfurous gas includes hydrogen sulfide and dioxy
Change sulphur；Gas handled by system and device is the Claus tail gases of Crouse's system discharge；The hydrogen comes
From in hydrogen formation apparatus；The heating medium of the gas heating system 1 is to be steamed from the external low pressure of device
Vapour.
Preferably, the hypergravity absorbing reaction system 8 is connected with the second liquid separation system 5；By super
Gas after the desulfurization of gravity absorbing reaction system 8 reaches the second liquid separation system 5 and carries out gas-liquid separation, separates
The liquid for going out is recycled into rich solution system 6, and the gas isolated reaches by after tail gas burning furnace burning
Air is discharged into after to national standard.
Preferably, second liquid separation system 5 includes knockout drum, exists by the sulfurous gas for purifying
The drop carried secretly in gas is removed in knockout drum.Zhi Liuguan is connected on the pipeline of the rich solution system 6
Road is connected to the liquid outlet of knockout drum, the process water supply rich solution system 6 that knockout drum is isolated
Recycle；The gas vent of second liquid separation system 5 is connected with tail gas burning furnace 17, reaches discharge
The gas of standard is discharged through chimney.
Preferably, the liquid outlet of the rich solution system 6 is provided with first circulation pump 7；The poor liquid bath
14 liquid outlet is provided with second circulation pump 15.
Further, the invention also discloses high gravity desulfurization system and device as described above in removing sulfur-bearing
Change the application in hydrogen field.
In the prior art, have two on the Claus tail gases desulfurization technology patent larger with the application correlation
:Patent CN201410025991 and CN201410026037, two patent specifications chelated iron desulfurizing agent
Formula, and using supergravity reactor as absorbing reaction equipment, carry out Claus tail gases desulfurization.But
It is that above-mentioned two patents are still present following shortcoming during desulfurization process：Absorbing reaction process is oxygen
Change reduction reaction, the easy fouling of sulphur simple substance of generation causes filler or pipeline blockage.For disadvantages mentioned above
And conventional suction tower, used as the deficiency of desulfurization main equipment, the present invention is based between MDEA and hydrogen sulfide
The principle of acid-base reaction, realizes the removing of hydrogen sulfide in gas phase, in combination with heating steam stripping regeneration system,
Propose a kind of brand-new hypergravity Claus tail gases desulphurization system device.Apparatus of the present invention are in traditional Crouse
Deep removal high concentration hydrogen sulfide gas are realized using high-gravity technology in technique, it is high with mass-transfer efficiency,
Low pressure drop, equipment is small, and operating cost is low, has important application value and industry in sulfur removal technology field
Prospect.
Beneficial effects of the present invention are as follows：
The characteristics of present invention is using high-gravity technology and claus process, supergravity reactor is applied to
Claus process desulfuration field, is improved and designs by whole system device, proposes a kind of brand-new
Hypergravity Claus tail gases desulphurization system device, the device volume is small, and the simple low cost of absorbent is complete
The characteristics of being applied to various high-concentration sulfur-containing Claus tail gases entirely.The use of supergravity reactor is absorption plant,
Using oxysulfide, hydrogen sulfide in supergravity reactor removing sulfurous gas etc., the present invention is in hypergravity
Claus tail gases desulfuration field has important application value and industrial prospect.
The hydrogen sulfide in deep removal Claus tail gases is realized by using high-gravity technology, is Crouse's tail
Desulfurization technique provides a kind of system and device of the high and low pressure drop of mass-transfer efficiency.Meanwhile, the device have set
Standby small volume, the low advantage of operating cost, for the competitiveness in the international market for improving China's desulfurization industry is provided
Technical support, major contribution is made to improve air ambient.
Brief description of the drawings
Specific embodiment of the invention is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 shows the schematic diagram of hypergravity Claus tail gases desulphurization system device of the invention.
Specific embodiment
In order to illustrate more clearly of the present invention, the present invention is done into one with reference to preferred embodiments and drawings
The explanation of step.Similar part is indicated with identical reference in accompanying drawing.Those skilled in the art
It should be appreciated that following specifically described content is illustrative and be not restrictive, should not be limited with this
Protection scope of the present invention.
Embodiment 1
A kind of hypergravity Claus tail gases desulphurization system device, the system and device includes gas heating system
1st, sulfiding gas hydrogenation system 2, gas system 3, the first liquid separation system 4, the second liquid separation system 5,
Hypergravity absorbing reaction system 8, rich solution system 6 and rich solution regenerative system；The gas of Crouse's system goes out
Mouth is connected with the gas access of the gas heating system 1；The gas of the gas heating system 1 goes out
Gas access of the outlet of mouth and hydrogen with sulfiding gas hydrogenation system 2 is connected；The vulcanization gas
The gas vent of body hydrogenation system 2 is connected with the gas access of gas system 3；The gas is cold
But the gas vent of system 3 is connected with the gas access of the first liquid separation system 4；First point of liquid system
The gas vent of system 4 is connected with the gas access of hypergravity absorbing reaction system 8；The hypergravity is inhaled
The gas vent for receiving reaction system 8 is connected with the gas access of the second liquid separation system 5；Described second point
The gas vent of liquid system 5 is connected with the gas access of tail gas burning furnace 17；The liquid outlet of cooling water
Liquid inlet with the gas system 3 is connected；The liquid of the hypergravity absorbing reaction system 8
Liquid inlet of the liquid outlet of body outlet and the second liquid separation system 5 with rich solution system 6 is connected；
The liquid outlet of the rich solution system 6 is connected with the liquid inlet of rich solution regenerative system；The rich solution is again
The liquid outlet of raw system is connected with the liquid inlet of hypergravity absorbing reaction system 8；The rich solution is again
The gas of the gas vent discharge of raw system is sent to Crouse's system.
The gas heating system 1 includes process heater, and the outlet side of the process heater is provided with
Electric heater, heats the gases to 200-260 DEG C in sweetening process.
The sulfurous gas mainly includes hydrogen sulfide gas, and sulfurous gas first passes around claus reaction system,
Carry out heat treatment and reach temperature using the heating of low-pressure steam process and two kinds of heating modes of electrical heating afterwards
To 200-260 DEG C.
The built-in absorbing liquid of the hypergravity absorbing reaction system 8；The absorbing liquid is MDEA solution.
The liquid inlet of the hypergravity absorbing reaction system 8 is provided with liquid distribution trough, and absorbing liquid is uniform
It is distributed in supergravity reactor filler inwall.
The hypergravity absorbing reaction system 8 includes supergravity reactor；The supergravity reactor is provided with
Valve, when supergravity reactor runs, valve is opened；The supergravity reactor is in closed housing
Rotatable parts are provided with, liquid import and export and gas import and export are provided with housing and upper lid；The rotation
Part is made up of rotor and filler；Described filler is selected from wire mesh packing, polytetrafluoro filler, ceramics and fills out
Material, structuring filling or structured packing；The liquid-inlet of the supergravity reactor is provided with and extends to rotor
The liquid distribution trough in center cavity area；The acceleration of gravity of the supergravity reactor is 10-1500g.
The liquid outlet of the hypergravity absorbing reaction system 8 is connected with the liquid inlet of rich solution system 6,
The liquid outlet of rich solution system 6 is connected with the liquid inlet of rich solution regenerative system, rich solution regenerative system
Liquid outlet is connected with the liquid inlet of hypergravity absorbing reaction system 8, by absorbing liquid after regeneration
Hypergravity absorbing reaction system 8 is re-fed into, a liquid phase circulation system is formed.
The rich solution regenerative system includes poor liquid bath 14, reboiler 16, flash tank 10, regenerator or super
Gravity reactor (11), the 3rd liquid separation system 13, cooler 12 and heat exchanger 9；The rich solution system
The liquid outlet of system 6 sequentially passes through the liquid-inlet phase of first circulation pump 7 and heat exchanger 9 and flash tank 10
Connection；The liquid outlet of the flash tank 10 and regenerator or the liquid inlet of supergravity reactor (11)
It is connected；The liquid outlet of the regenerator or supergravity reactor (11) enters with the liquid of poor liquid bath 14
Mouth is connected；The liquid outlet of the poor liquid bath 14 is by second circulation pump 15 and the liquid of reboiler 16
Import is connected；The liquid outlet of the reboiler 16 and regenerator or the liquid of supergravity reactor (11)
Body entrance is connected；The gas vent of the regenerator or supergravity reactor (11) is through subcooler 12
Gas access with the 3rd point of flow container 13 is connected；The gas vent of the 3rd point of flow container 13 and gram labor
The gas access of this tail gas unit is connected；The liquid outlet of the 3rd point of flow container 13 and regenerator or super
The liquid inlet of gravity reactor (11) is connected；The liquid outlet of the poor liquid bath 14 sequentially passes through
Two circulating pumps 15 and heat exchanger 9 are connected with the liquid-inlet of hypergravity absorbing reaction system 8.
The first valve is provided between the liquid outlet of the cooling water and the liquid inlet of gas system 3；
It is provided between the gas vent of the sulfiding gas hydrogenation system 2 and the gas access of gas system 3
Second valve；The gas vent of first liquid separation system 4 and the gas of hypergravity absorbing reaction system 8
The 3rd valve is provided between entrance；The liquid outlet of the hypergravity absorbing reaction system 8 and rich solution system 6
Liquid inlet between be provided with the 4th valve；The liquid outlet of second liquid separation system 5 and rich solution system 6
Liquid inlet between be provided with the 5th valve；The liquid outlet of the rich solution regenerative system absorbs with hypergravity
The 6th valve is provided between the liquid inlet of reaction system 8；The gas of the hypergravity absorbing reaction system 8
Body is exported and is provided with the 7th valve and the gas access of the second liquid separation system 5 between；Second liquid separation system 5
Gas vent and the gas access of tail gas burning furnace 17 between be provided with the 8th valve.
The Claus tail gases are sulfurous gas, and the sulfurous gas includes sulfur dioxide gas and hydrogen sulfide
Gas；Gas handled by system and device includes being produced from the external Claus tail gases of device and regenerative system
Raw sulfurous gas；The hydrogen comes from hydrogen formation apparatus；The heating of the gas heating system 1
Medium is from the external low-pressure steam of device.
The hypergravity absorbing reaction system 8 is connected with the second liquid separation system 5；Absorbed by hypergravity
Gas after the desulfurization of reaction system 8 reaches the second liquid separation system 5 and carries out gas-liquid separation, the liquid isolated
Recycled into rich solution system 6, the gas isolated after the burning of tail gas burning furnace 17 by reaching country
Air is discharged into after standard.
The operation principle of hypergravity Claus tail gases desulphurization system device of the present invention is：
Gas and hydrogen sulfide containing gas containing sulfur dioxide initially enter Crouse's system and device, generation
Claus tail gases subsequently enter system and device of the invention, first pass around two kinds of sides of low-pressure steam and electrical heating
Formula is combined and is heated to 200-260 DEG C, then enters hydrogenation reactor jointly with from the external hydrogen of device, instead
Oxysulfide should be reduced to hydrogen sulfide, the urgency that hydrogenation reactor exit gas enters in gas system
Point flow container entered after cold tower cooler in the first liquid separation system, it is anti-that gas is passed directly into hypergravity from a point flow container
Device gas access is answered, absorbing liquid enters supergravity reactor simultaneously.By supergravity reactor cyclic absorption
Gas afterwards removes gas from the knockout drum that supergravity reactor gas vent enters in the second liquid separation system
Vapor in body, the gas that knockout drum is isolated is directly entered tail gas burning furnace burning, after burning
Tail gas meet national emission standards for sulfur dioxide, discharged.Knockout drum removing process water with
And the lean solution supply rich solution system after supergravity reactor absorption.Rich solution is pumped into richness by first circulation
Liquid regenerative system is converted into lean solution into regenerator or supergravity reactor to be continued to be conveyed to supergravity reactor
As absorbing liquid.The sulfurous gas that regenerator or supergravity reactor remove out is again introduced into dress of the present invention
The system of putting is recycled.Whole system can realize good circulation, it is ensured that sulfurous gas reaches discharge
Discharged after standard.
Embodiment 2
System and device in the embodiment of the present invention 1 is applied at the desulfurization of sulfurous gas in Claus tail gases
Manage, specific technological parameter is：Sulfurous gas tolerance 31024Nm3/ h, SO2Content 0.82v%, H2S
Content 0.91v%, temperature is 198 DEG C, pressure 0.126MPa, and absorbing liquid is to be absorbed containing 30%MDEA
Liquid.SO after carrying out desulfurization process and burning using system and device of the invention2Content is 38mg/Nm3,
Apparatus system pressure drop is 1.6kPa.
Embodiment 3
System and device in the embodiment of the present invention 1 is applied at the desulfurization of sulfurous gas in Claus tail gases
Manage, specific technological parameter is：Sulfurous gas tolerance 4017Nm3/ h, SO2Content 0.88v%, H2S
Content 0.85v%, temperature is 189 DEG C, pressure 0.129MPa.Taken off using system and device of the invention
Sulphuring treatment, absorbing liquid is absorbing liquid containing 35%MDEA.Sour gas through absorbing liquid absorb after burn after SO2
Content 57mg/Nm3, apparatus system pressure drop is 1.4kPa.
Embodiment 4
System and device in the embodiment of the present invention 1 is applied at the desulfurization of sulfurous gas in Claus tail gases
Manage, specific technological parameter is：Sulfurous gas tolerance 5138Nm3/ h, SO2Content 0.92v%, H2S
Content 0.87v%, temperature is 180 DEG C, pressure 0.132MPa.Taken off using system and device of the invention
Sulphuring treatment, absorbing liquid is absorbing liquid containing 35%MDEA.Sour gas through absorbing liquid absorb after burn after SO2
Content 30mg/Nm3, apparatus system pressure drop is 1.45kPa.
Comparative example 1
It is applied to conventional absorption tower as desulfurization main equipment in Claus tail gases at the desulfurization of sulfurous gas
Reason, specific technological parameter is consistent with the parameter in embodiment 1：Tolerance 31024Nm3/ h, SO2Content
0.82v%, H2S content 0.91v%, temperature is 198 DEG C, pressure 0.126MPa.Using conventional absorption tower
Tail gas clean-up treatment, tail gas SO after alkali liquor absorption burning are carried out as desulfurization main equipment2Content 850
mg/Nm3, apparatus system pressure drop is 2.6kPa.
Obviously, the above embodiment of the present invention is only intended to clearly illustrate example of the present invention, and
It is not the restriction to embodiments of the present invention, for those of ordinary skill in the field,
Can also be made other changes in different forms on the basis of described above, here cannot be to all
Implementation method be exhaustive, it is every to belong to the obvious change that technical scheme is extended out
Change or change the row still in protection scope of the present invention.
Claims (10)
1. a kind of hypergravity Claus tail gases desulphurization system device, it is characterised in that：The system and device bag
Include gas heating system (1), sulfiding gas hydrogenation system (2), gas system (3), first point
Liquid system (4), the second liquid separation system (5), hypergravity absorbing reaction system (8), rich solution system (6)
And rich solution regenerative system；The gas of the gas vent of Crouse's system and the gas heating system (1)
Entrance is connected；The outlet of the gas vent and hydrogen of the gas heating system (1) with vulcanization gas
The gas access of body hydrogenation system (2) is connected；The gas of the sulfiding gas hydrogenation system (2) goes out
Mouth is connected with the gas access of gas system (3)；The gas of the gas system (3)
Outlet is connected with the gas access of the first liquid separation system (4)；The gas of first liquid separation system (4)
Body outlet is connected with the gas access of hypergravity absorbing reaction system (8)；The hypergravity absorbing reaction
The gas vent of system (8) is connected with the gas access of the second liquid separation system (5)；Described second point
The gas vent of liquid system (5) is connected with the gas access of tail gas burning furnace (17)；The liquid of cooling water
Body outlet is connected with the liquid inlet of the gas system (3)；The hypergravity absorbing reaction system
Unite (8) liquid outlet and the second liquid separation system (5) liquid outlet with rich solution system (6)
Liquid inlet is connected；The liquid outlet of the rich solution system (6) and the liquid inlet of rich solution regenerative system
It is connected；The liquid outlet of the rich solution regenerative system enters with the liquid of hypergravity absorbing reaction system (8)
Mouth is connected；The gas of the gas vent discharge of the rich solution regenerative system is sent to Crouse's system.
2. a kind of hypergravity Claus tail gases desulphurization system device according to claim 1, its feature
It is：The gas heating system (1) includes process heater, the outlet side of the process heater
Heater is provided with, 200-260 DEG C is heated the gases in sweetening process.
3. a kind of hypergravity Claus tail gases desulphurization system device according to claim 1, its feature
It is：The built-in absorbing liquid of the hypergravity absorbing reaction system (8)；The absorbing liquid is that hydramine alkalescence is molten
Liquid；The hydramine be selected from N methyldiethanol amine, diethylenetriamine, monoethanolamine and piperazine in one kind or
It is various；The liquid inlet of the hypergravity absorbing reaction system (8) is provided with liquid distribution trough, by absorbing liquid
It is evenly distributed on supergravity reactor filler inwall.
4. a kind of hypergravity Claus tail gases desulphurization system device according to claim 1, its feature
It is：The hypergravity absorbing reaction system (8) is including supergravity reactor；The supergravity reactor
Gas feed valve is provided with, when supergravity reactor runs, valve is opened；The supergravity reactor exists
Be provided with rotatable parts in closed housing, housing and upper lid be provided with liquid import and export and gas into and out of
Mouthful；The rotatable parts are made up of rotor and filler；Described filler is selected from wire mesh packing, polytetrafluoro
Filler, ceramic packing, structuring filling or structured packing；The liquid-inlet of the supergravity reactor sets
There is the liquid distribution trough for extending to rotor center cavity zone；The acceleration of gravity of the supergravity reactor is
10-1500g。
5. a kind of hypergravity Claus tail gases desulphurization system device according to claim 1, its feature
It is：The liquid outlet of the hypergravity absorbing reaction system (8) enters with the liquid of rich solution system (6)
Mouth is connected, and the liquid outlet of rich solution system (6) is connected with the liquid inlet of rich solution regenerative system, rich
The liquid outlet of liquid regenerative system is connected with the liquid inlet of hypergravity absorbing reaction system (8), will be through
Absorbing liquid after regeneration is re-fed into hypergravity absorbing reaction system (8), forms a liquid phase circulation system.
6. a kind of hypergravity Claus tail gases desulphurization system device according to claim 1, its feature
It is：The rich solution regenerative system includes poor liquid bath (14), reboiler (16), flash tank (10), again
Raw tower regenerates supergravity reactor (11), the 3rd liquid separation system (13), cooler (12) and changes
Hot device (9)；The liquid outlet of the rich solution system (6) sequentially passes through first circulation pump (7) and heat exchange
Device (9) is connected with the liquid-inlet of flash tank (10), the liquid outlet of the flash tank (10) with
The liquid inlet of regenerator or regeneration supergravity reactor (11) is connected, and the regenerator or regeneration are super
The liquid outlet of gravity reactor (11) is connected with the liquid inlet of poor liquid bath (14), the lean solution
The liquid outlet of groove (14) is connected by second circulation pump (15) with the liquid-inlet of reboiler (16)
Connect, liquid outlet and regenerator or the liquid of regeneration supergravity reactor (11) of the reboiler (16)
Body entrance is connected；The regenerator or the gas vent of regeneration supergravity reactor (11) are through supercooling
Device (12) is connected with the gas access of the 3rd point of flow container (13), the 3rd point of flow container (13)
Gas vent is connected with the gas access of Claus tail gases device；The liquid of the 3rd point of flow container (13)
Body is exported and is connected with the liquid inlet of regenerator or regeneration supergravity reactor (11)；The poor liquid bath
(14) liquid outlet sequentially passes through second circulation pump (15) and heat exchanger (9) and absorbs anti-with hypergravity
System (8) liquid-inlet is answered to be connected.
7. a kind of hypergravity Claus tail gases desulphurization system device according to claim 1, its feature
It is：First is provided between the liquid inlet of the liquid outlet and gas system (3) of the cooling water
Valve；The gas vent of the sulfiding gas hydrogenation system (2) and the gas of gas system (3)
The second valve is provided between entrance；The gas vent of first liquid separation system (4) absorbs anti-with hypergravity
The 3rd valve is provided between the gas access for answering system (8)；The hypergravity absorbing reaction system (8)
Liquid outlet and the liquid inlet of rich solution system (6) between be provided with the 4th valve；Second point of liquid system
The 5th valve is provided between the liquid outlet of system (5) and the liquid inlet of rich solution system (6)；The richness
The 6th is provided between the liquid outlet of liquid regenerative system and the liquid inlet of hypergravity absorbing reaction system (8)
Valve；The gas vent of the hypergravity absorbing reaction system (8) and the gas of the second liquid separation system (5)
The 7th valve is provided between body entrance；The gas vent and tail gas burning furnace of second liquid separation system (5)
(17) the 8th valve is provided between gas access；The rich solution system (6) and hypergravity absorbing reaction
The gas access of system (8) is connected with balance pipe.
8. a kind of hypergravity Claus tail gases desulphurization system device according to claim 1, its feature
It is：The Claus tail gases are sulfurous gas, and the sulfurous gas includes hydrogen sulfide and sulfur dioxide；
Gas handled by system and device is the Claus tail gases of Crouse's system discharge；The hydrogen comes from hydrogen
Gas generating means；The heating medium of the gas heating system (1) is from the external low-pressure steam of device.
9. a kind of hypergravity Claus tail gases desulphurization system device according to claim 1, its feature
It is：The hypergravity absorbing reaction system (8) is connected with the second liquid separation system (5)；By super
Gas after gravity absorbing reaction system (8) desulfurization reaches the second liquid separation system (5) and carries out gas-liquid separation,
The liquid isolated is recycled into rich solution system (6), and the gas isolated is by tail gas burning furnace (17)
Air is discharged into after being up to state standards after burning.
10. the hypergravity Claus tail gases desulphurization system device as described in claim 1-9 is any is in removing
Application in H 2 S-containing gas field.
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| CN114196446A (en) * | 2021-11-04 | 2022-03-18 | 宁波章甫能源科技有限公司 | Method and device for hydrolyzing organic sulfur in coal gas and performing wet desulphurization |
| CN114699888A (en) * | 2022-04-01 | 2022-07-05 | 北京化工大学 | Sulfur-containing tail gas desulfurization system and method |
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