CN107019988A - The application of flue gas desulphurization system and method and sulfur recovery tail gas incinerator - Google Patents
The application of flue gas desulphurization system and method and sulfur recovery tail gas incinerator Download PDFInfo
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- CN107019988A CN107019988A CN201710371551.2A CN201710371551A CN107019988A CN 107019988 A CN107019988 A CN 107019988A CN 201710371551 A CN201710371551 A CN 201710371551A CN 107019988 A CN107019988 A CN 107019988A
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- flue gas
- desulphurization system
- high gravity
- demister
- water saving
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- 239000003546 flue gas Substances 0.000 title claims abstract description 78
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 77
- 239000007789 gas Substances 0.000 title claims abstract description 40
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 title claims abstract description 26
- 239000011593 sulfur Substances 0.000 title claims abstract description 18
- 229910052717 sulfur Inorganic materials 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000011084 recovery Methods 0.000 title claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 48
- 238000006477 desulfuration reaction Methods 0.000 claims abstract description 45
- 230000023556 desulfurization Effects 0.000 claims abstract description 42
- 239000000779 smoke Substances 0.000 claims abstract description 32
- 230000005484 gravity Effects 0.000 claims abstract description 30
- 238000005507 spraying Methods 0.000 claims abstract description 20
- 238000001816 cooling Methods 0.000 claims abstract description 15
- 230000003009 desulfurizing effect Effects 0.000 claims abstract description 9
- 235000019504 cigarettes Nutrition 0.000 claims abstract description 6
- 238000010438 heat treatment Methods 0.000 claims abstract 2
- 239000007921 spray Substances 0.000 claims description 23
- 238000013459 approach Methods 0.000 claims description 9
- 239000005864 Sulphur Substances 0.000 claims description 8
- 239000003517 fume Substances 0.000 claims description 3
- 238000000746 purification Methods 0.000 claims description 3
- 230000008676 import Effects 0.000 claims description 2
- 239000007791 liquid phase Substances 0.000 claims description 2
- 238000010792 warming Methods 0.000 claims description 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 28
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 23
- 239000003513 alkali Substances 0.000 description 8
- 239000000945 filler Substances 0.000 description 7
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 7
- 239000007788 liquid Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 4
- 239000002253 acid Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005504 petroleum refining Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000011010 flushing procedure Methods 0.000 description 3
- 238000006386 neutralization reaction Methods 0.000 description 3
- 238000005245 sintering Methods 0.000 description 3
- 239000013589 supplement Substances 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 2
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical group [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 235000011114 ammonium hydroxide Nutrition 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- MQRJBSHKWOFOGF-UHFFFAOYSA-L disodium;carbonate;hydrate Chemical compound O.[Na+].[Na+].[O-]C([O-])=O MQRJBSHKWOFOGF-UHFFFAOYSA-L 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000007086 side reaction Methods 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 239000007832 Na2SO4 Substances 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- 239000000809 air pollutant Substances 0.000 description 1
- 231100001243 air pollutant Toxicity 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 239000000112 cooling gas Substances 0.000 description 1
- 235000019628 coolness Nutrition 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000003500 flue dust Substances 0.000 description 1
- XLYOFNOQVPJJNP-ZSJDYOACSA-N heavy water Substances [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002075 main ingredient Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- 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
- B01D53/002—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 by condensation
-
- 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
- B01D53/50—Sulfur oxides
- B01D53/507—Sulfur oxides by treating the gases with other liquids
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/20—Reductants
- B01D2251/206—Ammonium compounds
- B01D2251/2062—Ammonia
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/60—Inorganic bases or salts
- B01D2251/604—Hydroxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses the flue gas desulfurization application of a kind of flue gas desulphurization system and method and sulfur recovery tail gas incinerator, the system includes eliminating white smoke device, high gravity desulfurization device and water saving fixtures, the water saving fixtures include spraying ventilating device and demister, the flue gas of discharge enters hypergravity desulfurizer after cooling by eliminating white smoke device, enter water saving fixtures after desulfurizing and purifying in high gravity desulfurization device, cooled by spraying ventilating device, enter eliminating white smoke device heat exchange heating after demister is purified again, finally by smoke stack emission.The flue gas desulphurization system of the present invention has few desulfuration efficiency height, equipment, occupation of land province, small investment, the features such as simple to operate, while avoiding the problem of chimney white cigarette is trailed.
Description
Technical field
The application is related to a kind of flue gas desulphurization system and method and the flue gas desulfurization of sulfur recovery tail gas incinerator should
With belonging to the sulfur dioxide removal of sulfur reclaimer tail gas incinerator flue gas in industrial smoke, particularly petroleum refining industry
Technical field.
Background technology
Improved from the thirties in last century since Claus sulphur recovery technologies realize industrialized production, have passed through nearly 90 years
Development and improvement, have tended to be ripe and perfect, but because Claus reactions are reversible reaction, are restricted by chemical balance, i.e.,
Make by three conversions for arriving level Four, the overall recovery of sulphur can only achieve 98% or so, and tail gas index, which reaches, to be still reached to less than environmental protection mark
Accurate (GB16297-1996).For petroleum refining industry, sulfur recovery facility tail gas is the concentration row of full factory's sulfur dioxide
Put one of source, it is necessary to there is effective sulfur method to control the discharge of sulfur dioxide.
The new standard promulgated according to national on April 16th, 2015《Petroleum refining industry pollutant emission standard》
(GB31570-2015), it is desirable to the SO of newly-built sulphur unit2Special emission limit is less than 100mg/Nm3, on July 1st, 2015
Come into effect.Therefore sulfur recovery facility is necessary to set up flue gas desulfurization facilities, by the sulfur dioxide (SO2) emissions of sulfur recovery facility
Concentration is controlled below the special emission limit of national regulation.Current sulfur recovery facility is designed as：The sour gas that upstream is come is first
Handled by Clause sulphur recoveries unit and tail gas treating unit, the element sulphur rate of recovery is not less than 99.8%, the tail gas of discharge
Middle SO2Content is 300-500mg/Nm3；When in sulfur recovery facility driving and parking, SO in flue gas2Content will be up to 25000mg/
Nm3, even more high, it is impossible to meet what is newly promulgated《Petroleum refining industry pollutant emission standard》(GB 31570-2015) air
Pollutant emission limit, thus need transformation and upgrade.
From the principle, sodium alkali desulfurization technology is as desulfurizing agent, with cigarette in absorption tower using sodium hydroxide solution
SO in gas2The process reacted, and appropriate alkali lye is persistently supplemented in an adequate manner, to maintain in absorption cycle liquid
Na2SO3-NaHSO3Between optimal proportion.
The Main Ingredients and Appearance of flue gas has N2、CO2、H2O、O2, also SO to be removed in addition2With a small amount of acid mist (SO3).In flue gas
SO2Subtractive process be to be divided to two completions：
SO in the first step, gas-liquid mass transfer and hydro-combination process, i.e. flue gas2When molecule is contacted with water, it is dissolved in water, and and water
Molecular water is combined into sulfurous acid：
SO2+H2O→H2SO3 (1)
Second step, absorbs
2NaOH+H2SO3→Na2SO3+2H2O (2)
Na2SO3+H2SO3→2NaHSO3 (3)
Side reaction：
Na2SO3+1/2O2→Na2SO4 (4)
When alkalescence is higher (pH ＞ 9), (2) formula is that the NaOH of main reaction equation, i.e., 2 mole removes 1 mole of SO2；
When alkalescence is reduced to neutral or even acid (6 ＜ pH ＜ 8), then reacted by (3) formula, relief liquor is Na2SO3, i.e.,
1 mole of NaOH removes 1 mole of SO2, while reducing the progress of oxidation side reaction as far as possible.
3rd step, is neutralized
Accessory substance is NaHSO3, to SO2Without absorbability, absorbing liquid will carry out neutralisation treatment.The purpose of neutralisation treatment be by
NaHSO in absorbing liquid3Neutralize as Na2SO3, i.e.,：
NaHSO3+NaOH→Na2SO3+H2O (5)
The flue gas of sulfur reclaimer tail gas incinerator, different from fire coal boiler fume, its temperature is higher, typically in 200-
300℃；Sulfur content excursion is big, can be in 300-25000mg/Nm3Between；And moisture is high, do not contain flue dust.In alkali
In method desulfurization project, thermal balance and water balance condition each other, therefore it is necessary to from heat balance, material balance (water and element sulphur),
Balance each other and consider between flue gas and circulation fluid.
The content of the invention
It is an object of the invention to provide a kind of flue gas desulphurization system and method and sulfur recovery tail gas incinerator smoke
The application of desulfurization, to overcome deficiency of the prior art.
To achieve the above object, the present invention provides following technical scheme：
The embodiment of the present application discloses a kind of flue gas desulphurization system, including eliminating white smoke device, high gravity desulfurization device and water saving
Device, the water saving fixtures include spraying ventilating device and demister, and the flue gas of discharge enters after being cooled by eliminating white smoke device
High gravity desulfurization device, is further cooled in high gravity desulfurization device after desulfurizing and purifying by spraying ventilating device, after cooling
Flue gas after demister is purified enter the eliminating white smoke device heat up, finally by smoke stack emission.
It is preferred that, in above-mentioned flue gas desulphurization system, the water saving fixtures have a cavity and connected with the cavity
Logical exhanst gas outlet and gas approach, the exhanst gas outlet and gas approach are located at the upper and lower ends of the cavity respectively, described
Gas approach is communicated in the high gravity desulfurization device, and the exhanst gas outlet is communicated in the cold-side inlet of the eliminating white smoke device,
The spraying ventilating device is arranged in the cavity, and the demister is arranged at the exhanst gas outlet of water saving fixtures.
It is preferred that, in above-mentioned flue gas desulphurization system, the bottom of the cavity is provided with circulatory pool, the circulatory pool and
Water circulating pump is provided between spraying ventilating device.
It is preferred that, in above-mentioned flue gas desulphurization system, heat-exchanger rig is provided with the circulatory pool.
It is preferred that, in above-mentioned flue gas desulphurization system, the high gravity desulfurization device includes pre- spray thrower and hypergravity
Desulfurizing machine, the pre- spray thrower is arranged at the arrival end of the high gravity desulfurization machine.
It is preferred that, in above-mentioned flue gas desulphurization system, the spray head of the pre- spray thrower and bottom respectively with doctor solution
Circulating slot connects to form circulation waterway
It is preferred that, in above-mentioned flue gas desulphurization system, the liquid phase of the high gravity desulfurization device is imported and exported respectively with taking off
Sulphur liquid circulating slot connects to form circulation waterway.
It is preferred that, in above-mentioned flue gas desulphurization system, overfall is provided with the side wall of the cavity, the overfall connects
Pass through the doctor solution circulating slot.
Accordingly, disclosed herein as well is a kind of fume desulphurization method, including：
Flue gas is cooled to 150~160 DEG C by eliminating white smoke device；
90~100 DEG C are further cooled to by pre- spray thrower, preliminary desulfurization is started simultaneously at；
Desulfurizing and purifying is realized into high gravity desulfurization machine and doctor solution haptoreaction；
Flue gas enters water saving fixtures, is further cooled and deep desulfuration by spraying ventilating device, and removes many in flue gas
Remaining saturation water；
Flue fog drip is removed by demister；
Heat exchange is carried out into eliminating white smoke device and is warming up to more than 150 DEG C, and passes through smoke stack emission.
Compared with prior art, the advantage of the invention is that：The flue gas desulphurization system of the present invention has desulfuration efficiency height, set
It is standby less, take up an area save, small investment, the features such as simple to operate, while avoiding the problem of chimney white cigarette is trailed.
Brief description of the drawings
, below will be to embodiment or existing in order to illustrate more clearly of the embodiment of the present application or technical scheme of the prior art
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments described in application, for those of ordinary skill in the art, on the premise of not paying creative work,
Other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 show the principle schematic of flue gas desulphurization system in the specific embodiment of the invention.
Fig. 2 show the enlarged diagram of water saving fixtures in the specific embodiment of the invention.
Embodiment
Technical scheme is clearly and completely described below in conjunction with accompanying drawing, it is clear that described implementation
Example is a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill
The every other embodiment that personnel are obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
In the description of the invention, it is necessary to explanation, term " " center ", " on ", " under ", "left", "right", " vertical ",
The orientation or position relationship of the instruction such as " level ", " interior ", " outer " be based on orientation shown in the drawings or position relationship, merely to
Be easy to the description present invention and simplify description, rather than indicate or imply signified device or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ",
" the 3rd " is only used for describing purpose, and it is not intended that indicating or implying relative importance.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
With reference to shown in Fig. 1, flue gas desulphurization system, including eliminating white smoke device 100, high gravity desulfurization device 200 and water saving dress
300 are put, water saving fixtures 300 include spraying ventilating device 301 and demister 302, the flue gas of discharge is dropped by eliminating white smoke device 100
Enter hypergravity desulfurizer 200 after temperature, further filled in high gravity desulfurization device 200 after desulfurizing and purifying by spraying cooling
301 coolings are put, the flue gas after cooling heats up after the purification of demister 302 into eliminating white smoke device 100, finally by chimney
400 discharges.
In the technical scheme, flue gas is preferably sulfur reclaimer tail gas incinerator flue gas, and flue gas enters eliminating white smoke device
After be cooled to 150~160 DEG C, spraying ventilating device is used to flue-gas temperature further cool 3~5 DEG C.
In the technical scheme, eliminating white smoke device is preferably heat exchange of heat pipe, and heat exchange of heat pipe can be the corrosion resistants such as stainless steel
The materials such as erosion.
In one embodiment, the filler in high gravity desulfurization device employs the structuring SiC with nano-micro structure, sintering
Ceramic, powder sintered titanium-base alloy filler.Due to using structuring SiC, sintering ceramic, powder sintered titanium-base alloy filler, make
Fluid flows to reduce flow resistance in the regular runner of structure-controllable, reduces pressure drop.Meanwhile, pass through sintering on filler surface
Etc. the nano-micro structure that method has constructed microcosmic upper convex concave, further increasing specific surface area, to strengthen mass transfer, realizes efficient depth
The purpose of pernicious gas is removed, Chinese patent application the 201010579829.3rd can be joined.
In another embodiment, the rotor filler outer layer of high gravity desulfurization device is provided with back purge system, backwash dress
Put to be connected with flushing liquor import and communicate.Using backwash cross_flow rotating packed bed, it largely prevent drusen and block up
Hypergravity filler is filled in, Chinese patent application the 201410244880.7th can be joined.
With reference to shown in Fig. 2, water saving fixtures 300 have a cavity 303 and the exhanst gas outlet 304 that is connected with cavity 303 and
Gas approach 305, exhanst gas outlet 304 and gas approach 305 are located at the upper and lower ends of cavity 303 respectively, and gas approach 305 is connected
In the outlet of high gravity desulfurization device 200, exhanst gas outlet 304 is communicated in the cold-side inlet of eliminating white smoke device 100, spraying cooling dress
Put 301 to be arranged in cavity 303, demister 302 is arranged at the exhanst gas outlet of water saving fixtures.
In the technical scheme, by spraying ventilating device, on the one hand can further cool flue gas 3~5 DEG C, the opposing party
Face can play further desulfidation to flue gas, and another further aspect can also reduce the dew-point temperature of saturated flue gas, it is to avoid cigarette
Chimney condenses when discharging flue gas, and then mitigates to chimney, the corrosion of equipment.
Further, the bottom of cavity 303 is provided with circulatory pool 306, between circulatory pool 306 and spraying ventilating device 301
It is provided with water circulating pump 307.
In the technical scheme, the water circulation of spraying ventilating device is used, and plays water saving effect.
In preferred technical scheme, the recirculated water that spraying cooling is used is doctor solution, including alkali lye, ammoniacal liquor etc., its
Middle alkali lye can be sodium hydroxide, sodium hydroxide-sodium carbonate etc..
Temperature lowering water is used as by doctor solution, cooling on the one hand can be realized, further depth on the other hand can be realized
Desulfurization, meets emission request.
Further, demister 302 includes silk screen demisting layer and spray equipment, and spray equipment could be arranged to individual layer or double
Layer spray head.
In the present embodiment, spray equipment is preferably provided with double layers of sprinkling head, and the double layers of sprinkling head is respectively arranged at silk screen demisting
The both sides up and down of layer, and two layers of spray head both faces towards the silk screen demisting layer.
In the technical scheme, the shower water used in demister is pure water, can trap the drop in flue gas.
Further, it is provided with heat-exchanger rig 308 in circulatory pool 306.
In the technical scheme, the water temperature in circulatory pool can be cooled by heat-exchanger rig, to remove water saving fixtures
The requirement of the middle heat brought into by flue gas.The moisture content in flue gas is reduced by condensation simultaneously, water-saving system cooling is condensed out
Water and mist eliminator flushing water by tube overflow to doctor solution circulating slot, as system water supplement, have ensured that system level
Weighing apparatus.
Further, high gravity desulfurization device 200 includes pre- spray thrower 201 and high gravity desulfurization machine 202, pre- spray thrower
201 are arranged at the arrival end of the high gravity desulfurization machine.
In one embodiment, the spray head of pre- spray thrower 201 and bottom are connected with doctor solution circulating slot (not shown) respectively
To form circulation waterway
In one embodiment, the fluid inlet of high gravity desulfurization machine 202 and outlet connected respectively with doctor solution circulating slot with
Form circulation waterway.
In the technical scheme, flue gas first passes through the chilling cooling of pre- spray section doctor solution, and flue gas cool-down is to 70~90 DEG C, so
Enter hypergravity desulfurizing machine 202 afterwards, doctor solution fully contacts with flue gas, flue gas is washed, doctor solution exists with sulfur dioxide
Wherein haptoreaction and play removing effect.Sour gas in flue gas completes to pass with doctor solution in hypergravity machine filler layer surface
The chemical process of matter heat transfer, is finally entered in doctor solution.By supplementing fresh doctor solution so that supergravity reactor doctor solution
PH value maintains certain limit；Doctor solution is constantly circulated, and enters system from the external fresh doctor solution of device, and neutralization absorbs acid
The doctor solution of property gas.The doctor solution part of saturation is pumped to efflux wastewater surge tank.
In the technical scheme, the doctor solution in pre- spray thrower and high gravity desulfurization machine 202 is alkali lye, ammoniacal liquor etc., wherein alkali
Liquid can be sodium hydroxide, sodium hydroxide-sodium carbonate etc..
In the technical scheme, pre- spray, as coolant, on the one hand can play quick cooling effect, separately using doctor solution
On the one hand it can realize that the desulfurization to flue gas absorbs.
Further, overfall 3031 is provided with the side wall of cavity 303, the overfall 3031 is communicated in doctor solution circulation
Groove.
In the technical scheme, the flue gas after high gravity desulfurization enters water saving fixtures and carries out heat exchange cooling, and flue-gas temperature is again
3~5 DEG C or more of reduction.Flue fog drip is removed through demister simultaneously.During startup-shutdown, because sulfur dioxide in flue gas is dense
Degree is especially high, increases area's alkali lye supplement, it can be ensured that flue gas qualified discharge.Water saving fixtures top sets demister area, by flue gas
Middle droplet is removed, and water content is reduced, to mitigate rear portion flue gas with water problem.Water and demister that water-saving system cooling is condensed out
The water of flushing, to doctor solution circulating slot, as system water supplement, has ensured that systematic water balance by tube overflow.
In summary, in the system of this case, flue gas first passes through the chilling cooling of pre- spray thrower, subsequently into high gravity desulfurization
Device, completes desulfurization washing wherein.Flue gas is after the dehydration of water saving fixtures demister demisting after purification, and into disappearing, white haze device adds
Heat drains into smoke stack emission to more than 150 DEG C by flue.Flue-gas temperature after eliminating white smoke device is higher, generally greater than flue gas
Middle 20~30 DEG C of acid gas dew-point temperature, it is to avoid the problem of dewing corrosion chimney, while flue-gas temperature is much higher than its dew point, thus
Smoke evacuation process is not in white cigarette phenomenon.
High concentration SO when this case technique is applicable the desulfurization process, particularly driving and parking of sulfur recovery tail gas incinerator smoke2
Processing qualified discharge；The purified treatment of other sulfur-bearing industrial smokes or tail gas is applied also for, flue gas nominal situation SO after processing2
Concentration≤50mg/Nm3, in shutting down operating mode≤100mg/Nm3, it is significantly less than most stringent of emission request at this stage.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent
The present invention is described in detail with reference to foregoing embodiments for pipe, it will be understood by those within the art that：Its according to
The technical scheme described in foregoing embodiments can so be modified, or which part or all technical characteristic are entered
Row equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology
The scope of scheme.
Claims (10)
1. a kind of flue gas desulphurization system, it is characterised in that including eliminating white smoke device, high gravity desulfurization device and water saving fixtures, institute
Stating water saving fixtures includes spraying ventilating device and demister, and the flue gas of discharge is de- into hypergravity after being cooled by eliminating white smoke device
Sulphur device, is further cooled in high gravity desulfurization device after desulfurizing and purifying by spraying ventilating device, the flue gas warp after cooling
Cross and enter eliminating white smoke device heating after demister purification, finally by smoke stack emission.
2. flue gas desulphurization system according to claim 1, it is characterised in that：The water saving fixtures have a cavity and
The exhanst gas outlet and gas approach connected with the cavity, the exhanst gas outlet and gas approach are respectively positioned at the upper of the cavity
Lower two ends, the gas approach is communicated in the outlet of the high gravity desulfurization device, the exhanst gas outlet be communicated in it is described disappear it is white
The cold-side inlet of cigarette device, the spraying ventilating device is arranged in the cavity, and the demister is arranged at water saving fixtures
Exhanst gas outlet.
3. flue gas desulphurization system according to claim 2, it is characterised in that：The bottom of the cavity is provided with circulatory pool,
Water circulating pump is provided between the circulatory pool and spraying ventilating device.
4. flue gas desulphurization system according to claim 3, it is characterised in that：Heat-exchanger rig is provided with the circulatory pool.
5. flue gas desulphurization system according to claim 1, it is characterised in that：The high gravity desulfurization device includes pre- spray
Device and high gravity desulfurization machine, the pre- spray thrower are arranged at the arrival end of the high gravity desulfurization machine.
6. flue gas desulphurization system according to claim 6, it is characterised in that：The spray head of the pre- spray thrower and bottom point
Do not connect to form circulation waterway with doctor solution circulating slot
7. the flue gas desulphurization system according to claim 1 or 6, it is characterised in that：The liquid phase of the high gravity desulfurization device
Import and export connect to form circulation waterway with doctor solution circulating slot respectively.
8. the flue gas desulphurization system according to claim 6 or 7, it is characterised in that：It is provided with the side wall of the cavity excessive
Head piece, the overfall is communicated in the doctor solution circulating slot.
9. a kind of fume desulphurization method, it is characterised in that including：
Flue gas is cooled to 150~160 DEG C by eliminating white smoke device；
90~100 DEG C are cooled to by pre- spray thrower；
Desulfurizing and purifying is realized into high gravity desulfurization machine and doctor solution haptoreaction；
Flue gas further cools into spraying ventilating device, and removes saturation water unnecessary in flue gas；
Drop in flue gas is removed by demister；
Heat exchange is carried out into eliminating white smoke device and is warming up to more than 150 DEG C, and passes through smoke stack emission.
10. any described flue gas desulphurization system of claim 1 to 8 answering in the incinerator smoke desulfurization of sulfur recovery tail gas
With.
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| CN201710371551.2A CN107019988A (en) | 2017-05-24 | 2017-05-24 | The application of flue gas desulphurization system and method and sulfur recovery tail gas incinerator |
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| CN201710371551.2A CN107019988A (en) | 2017-05-24 | 2017-05-24 | The application of flue gas desulphurization system and method and sulfur recovery tail gas incinerator |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108722162A (en) * | 2018-08-17 | 2018-11-02 | 安徽金森源环保工程有限公司 | A kind of flue gas depth takes off white minimum discharge apparatus and method |
| CN109224808A (en) * | 2018-11-06 | 2019-01-18 | 河北金科环保设备有限公司 | A kind of carbon baking kiln gas ultra-clean discharge cleaning equipment and purification method |
| CN110141917A (en) * | 2019-05-09 | 2019-08-20 | 张波 | A kind of heating of system for desulfuration and denitration disappears white equipment |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3630940A1 (en) * | 1986-09-11 | 1988-03-24 | Insumma Energie Systemplanung | METHOD AND DEVICE FOR DESULFURING SMOKE GAS |
| CN201558655U (en) * | 2009-10-27 | 2010-08-25 | 中国石油化工股份有限公司 | System for recovering and treating hydrocarbon-containing waste gas |
| CN102049171A (en) * | 2009-10-27 | 2011-05-11 | 中国石油化工股份有限公司 | Method for reclaiming and treating hydrocarbon-containing waste gas |
| CN102120172A (en) * | 2010-12-03 | 2011-07-13 | 北京化工大学 | Low-pressure-drop nano/microstructure filler revolving bed supergravity device and application thereof |
| CN102151476A (en) * | 2011-03-29 | 2011-08-17 | 武汉国力通化工环保科技有限公司 | Method for removing hydrogen sulfide in gas phase through oxidization under high gravity field |
| CN203108431U (en) * | 2013-03-26 | 2013-08-07 | 中国大唐集团环境技术有限公司 | Double-step flue gas desulfurization tower |
| CN203123814U (en) * | 2013-03-22 | 2013-08-14 | 大唐韩城第二发电有限责任公司 | Flue gas desulfurization system with anti-clogging structure |
| CN203316002U (en) * | 2013-05-16 | 2013-12-04 | 大唐韩城第二发电有限责任公司 | Double-tower desulfurization system |
| CN104043326A (en) * | 2014-06-04 | 2014-09-17 | 北京化工大学 | Apparatus for high gravity removal of hydrogen sulfide of novel industrial gas, and technology thereof |
| CN105289212A (en) * | 2015-11-06 | 2016-02-03 | 佛山赛因迪环保科技有限公司 | Smoke abatement water-saving method and device of desulfurization exhaust |
| CN206082114U (en) * | 2016-07-07 | 2017-04-12 | 北京化工大学苏州（相城）研究院 | Hypergravity desulfurization becomes sled device based on sacrifice type desulfurizer |
| CN106606909A (en) * | 2015-10-27 | 2017-05-03 | 北京化工大学 | Supergravity ship flue gas purification system device and its application |
| CN206881446U (en) * | 2017-05-24 | 2018-01-16 | 北京化工大学苏州（相城）研究院 | Flue gas desulphurization system |
-
2017
- 2017-05-24 CN CN201710371551.2A patent/CN107019988A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3630940A1 (en) * | 1986-09-11 | 1988-03-24 | Insumma Energie Systemplanung | METHOD AND DEVICE FOR DESULFURING SMOKE GAS |
| CN201558655U (en) * | 2009-10-27 | 2010-08-25 | 中国石油化工股份有限公司 | System for recovering and treating hydrocarbon-containing waste gas |
| CN102049171A (en) * | 2009-10-27 | 2011-05-11 | 中国石油化工股份有限公司 | Method for reclaiming and treating hydrocarbon-containing waste gas |
| CN102120172A (en) * | 2010-12-03 | 2011-07-13 | 北京化工大学 | Low-pressure-drop nano/microstructure filler revolving bed supergravity device and application thereof |
| CN102151476A (en) * | 2011-03-29 | 2011-08-17 | 武汉国力通化工环保科技有限公司 | Method for removing hydrogen sulfide in gas phase through oxidization under high gravity field |
| CN203123814U (en) * | 2013-03-22 | 2013-08-14 | 大唐韩城第二发电有限责任公司 | Flue gas desulfurization system with anti-clogging structure |
| CN203108431U (en) * | 2013-03-26 | 2013-08-07 | 中国大唐集团环境技术有限公司 | Double-step flue gas desulfurization tower |
| CN203316002U (en) * | 2013-05-16 | 2013-12-04 | 大唐韩城第二发电有限责任公司 | Double-tower desulfurization system |
| CN104043326A (en) * | 2014-06-04 | 2014-09-17 | 北京化工大学 | Apparatus for high gravity removal of hydrogen sulfide of novel industrial gas, and technology thereof |
| CN106606909A (en) * | 2015-10-27 | 2017-05-03 | 北京化工大学 | Supergravity ship flue gas purification system device and its application |
| CN105289212A (en) * | 2015-11-06 | 2016-02-03 | 佛山赛因迪环保科技有限公司 | Smoke abatement water-saving method and device of desulfurization exhaust |
| CN206082114U (en) * | 2016-07-07 | 2017-04-12 | 北京化工大学苏州（相城）研究院 | Hypergravity desulfurization becomes sled device based on sacrifice type desulfurizer |
| CN206881446U (en) * | 2017-05-24 | 2018-01-16 | 北京化工大学苏州（相城）研究院 | Flue gas desulphurization system |
Non-Patent Citations (3)
| Title |
|---|
| 全国勘察设计注册工程师环保专业管理委员会与中国环境保护产业协会: "《注册环保工程师专业考试复习教材—大气污染防治工程技术与实践》", 30 March 2017, 中国环境科学出版社 * |
| 徐娟等: "超重力脱硫技术在硫酸工业中的应用", 《硫磷设计与粉体工程》 * |
| 徐志远: "《化工单元操作》", 31 December 1987, 化学工业出版社 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108722162A (en) * | 2018-08-17 | 2018-11-02 | 安徽金森源环保工程有限公司 | A kind of flue gas depth takes off white minimum discharge apparatus and method |
| CN108722162B (en) * | 2018-08-17 | 2023-11-24 | 安徽金森源环保工程有限公司 | Deep-whitening ultralow-emission device and method for flue gas |
| CN109224808A (en) * | 2018-11-06 | 2019-01-18 | 河北金科环保设备有限公司 | A kind of carbon baking kiln gas ultra-clean discharge cleaning equipment and purification method |
| CN110141917A (en) * | 2019-05-09 | 2019-08-20 | 张波 | A kind of heating of system for desulfuration and denitration disappears white equipment |
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Application publication date: 20170808 |