CN205886572U - Petrochemical acidic tail gas processing system - Google Patents
Petrochemical acidic tail gas processing system Download PDFInfo
- Publication number
- CN205886572U CN205886572U CN201620739271.3U CN201620739271U CN205886572U CN 205886572 U CN205886572 U CN 205886572U CN 201620739271 U CN201620739271 U CN 201620739271U CN 205886572 U CN205886572 U CN 205886572U
- Authority
- CN
- China
- Prior art keywords
- water
- absorption tower
- treatment liquid
- neutralizing treatment
- pump
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000012545 processing Methods 0.000 title claims abstract description 18
- 230000002378 acidificating effect Effects 0.000 title abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 108
- 239000003513 alkali Substances 0.000 claims abstract description 62
- 238000010521 absorption reaction Methods 0.000 claims abstract description 55
- 239000007788 liquid Substances 0.000 claims abstract description 52
- 238000005406 washing Methods 0.000 claims abstract description 40
- 230000003472 neutralizing effect Effects 0.000 claims abstract description 31
- 238000003860 storage Methods 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 claims description 21
- 239000002253 acid Substances 0.000 claims description 17
- 239000007921 spray Substances 0.000 claims description 16
- 239000000203 mixture Substances 0.000 claims description 5
- 239000000945 filler Substances 0.000 claims description 4
- 230000009466 transformation Effects 0.000 claims description 4
- 238000012856 packing Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 6
- 239000007789 gas Substances 0.000 description 57
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 47
- 235000011121 sodium hydroxide Nutrition 0.000 description 16
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 12
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 11
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 10
- 230000008569 process Effects 0.000 description 9
- 239000000463 material Substances 0.000 description 8
- 239000000243 solution Substances 0.000 description 8
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 7
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 7
- 239000000460 chlorine Substances 0.000 description 7
- 229910052801 chlorine Inorganic materials 0.000 description 7
- 239000003546 flue gas Substances 0.000 description 7
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 6
- 230000007423 decrease Effects 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 230000008929 regeneration Effects 0.000 description 4
- 238000011069 regeneration method Methods 0.000 description 4
- 239000011780 sodium chloride Substances 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- 239000003518 caustics Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000006356 dehydrogenation reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 3
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 3
- 235000010265 sodium sulphite Nutrition 0.000 description 3
- 239000002918 waste heat Substances 0.000 description 3
- 239000003463 adsorbent Substances 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000000356 contaminant Substances 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 2
- 229910052755 nonmetal Inorganic materials 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000005201 scrubbing Methods 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 1
- 229920000914 Metallic fiber Polymers 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
- 239000005864 Sulphur Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 150000001805 chlorine compounds Chemical group 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 229910001055 inconels 600 Inorganic materials 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 239000008258 liquid foam Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 229910052979 sodium sulfide Inorganic materials 0.000 description 1
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 239000002594 sorbent Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000005987 sulfurization reaction Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 239000012224 working solution Substances 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
- Gas Separation By Absorption (AREA)
Abstract
The utility model discloses a petrochemical acidic tail gas processing system, including heat exchanger, alkali lye absorption tower, water wash column, alkali lye pond, lye pump, neutralizing treatment liquid circulating pump, water washing liquid circulating pump, technology water pump and water tank, the alkali lye absorption tower links to each other with the lower part of water wash column, and the bottom on alkali lye absorption tower is equipped with neutralizing treatment liquid storage area, and the bottom of water wash column is equipped with water washing liquid memory area, and neutralizing treatment liquid storage area be less than water washing liquid memory area, and water washing liquid memory area is equipped with the orientation neutralizing treatment liquid storage area's overflow mouth, neutralizing treatment liquid storage area pass through the continuous component circulation circuit in neutralizing treatment liquid circulating pump and alkali lye absorption tower, water washing liquid circulating pump and the continuous circulation circuit of component of water wash column are passed through to water washing liquid memory area, the alkali lye pond pass through the lye pump with the alkali lye absorption tower links to each other, the water tank pass through the technology water pump with heat exchanger, alkali lye absorption tower, water wash column link to each other respectively. Rely on gas to follow power and gaseous performance own that the venturi absorption tower obtained, reduced equipment area, reduced the investment.
Description
Technical field
This utility model is related to a kind of petrochemical industry energy-conserving and environment-protective technology, at more particularly, to a kind of petrochemical industry acid tail gas
Reason system.
Background technology
Petroleum chemical industry dehydrogenation project regeneration tail gas contain hcl, so2And cl2Deng acid gas contaminants, it is discharged into big
Serious environment pollution in gas is it is necessary to removal can discharge air after reaching environmental protection standard.Domestic medium-sized and small enterprises all can be because of throwing
Money high and directly by exhaust emissions in air, serious pollutes environment.
Utility model content
The purpose of this utility model be provide a kind of process is simple, energy-saving and environmental protection, take up an area less, the oil of high treating effect
Chemical industry acid tail gas processing system.
The purpose of this utility model is achieved through the following technical solutions:
Petrochemical industry acid tail gas processing system of the present utility model, including heat exchanger, alkali liquor absorption tower, water scrubber, alkali
Liquid pool, lye pump, neutralizing treatment liquid circulating pump, water washing liquor circulating pump, technique water pump and water tank；
Described alkali liquor absorption tower is connected with the bottom of water scrubber, and the bottom of described alkali liquor absorption tower is provided with the storage of neutralizing treatment liquid
Area, the bottom of described water scrubber is provided with water washing liquor memory block, and described neutralizing treatment liquid storage area is less than described water washing liquor storage
Area, and described water washing liquor memory block is provided with the overfall of described neutralizing treatment liquid storage area；
Described neutralizing treatment liquid storage area is connected with described alkali liquor absorption tower by described neutralizing treatment liquid circulating pump and constitutes circulation
Loop, described water washing liquor memory block by washing with water liquid circulating pump be connected with water scrubber composition closed circuit；
Described alkali liquor pond is connected with described alkali liquor absorption tower by described lye pump, and described water tank is by described technique water pump
It is respectively connected with described heat exchanger, alkali liquor absorption tower, water scrubber.
The petrochemical industry of this utility model embodiment offer is provided by the technical scheme that above-mentioned this utility model provides
Acid tail gas processing system, relies on gas to absorb from venturi due to by alkali liquor absorption tower together with washing tower bottom UNICOM
Tower obtain power and gas itself performance, by the bottom of water scrubber, and carrying out from bottom to top absorb, purify after have water
Wash top of tower to discharge.Such mode decreases occupation area of equipment.Decrease investment.
Brief description
The structural representation of the petrochemical industry acid tail gas processing system that Fig. 1 provides for this utility model embodiment.
Specific embodiment
This utility model embodiment will be described in further detail below.
Petrochemical industry acid tail gas processing system of the present utility model, its preferably specific embodiment is:
Follow including heat exchanger, alkali liquor absorption tower, water scrubber, alkali liquor pond, lye pump, neutralizing treatment liquid circulating pump, water washing liquor
Ring pump, technique water pump and water tank；
Described alkali liquor absorption tower is connected with the bottom of water scrubber, and the bottom of described alkali liquor absorption tower is provided with the storage of neutralizing treatment liquid
Area, the bottom of described water scrubber is provided with water washing liquor memory block, and described neutralizing treatment liquid storage area is less than described water washing liquor storage
Area, and described water washing liquor memory block is provided with the overfall of described neutralizing treatment liquid storage area；
Described neutralizing treatment liquid storage area is connected with described alkali liquor absorption tower by described neutralizing treatment liquid circulating pump and constitutes circulation
Loop, described water washing liquor memory block by washing with water liquid circulating pump be connected with water scrubber composition closed circuit；
Described alkali liquor pond is connected with described alkali liquor absorption tower by described lye pump, and described water tank is by described technique water pump
It is respectively connected with described heat exchanger, alkali liquor absorption tower, water scrubber.
Described alkali liquor absorption tower is venturi absorption tower, and its top is provided with Venturi tube.
Described water scrubber is packed tower, and described washing midsection arranges 2-3 section packing section, and described water scrubber epimere setting is de-
Day with fog, described defogging device top arranges spray thrower.
Described neutralizing treatment liquid storage area is provided with box neutralizing treatment liquid seal pot, and described water washing liquor memory block is provided with box water
Cleaning mixture seal pot.
Described heat exchanger is phase-change type heat exchanger, and cold medium is air, thermal medium is acid tail gas.
Alkali liquor in described alkali liquor pond supplements sodium hydroxide according to 3% amount.
Solution in described box neutralizing treatment liquid seal pot is mixed liquid measure according to 30% sodium sulfite and discharges with sodium chloride.
Petrochemical industry acid tail gas processing system of the present utility model, can remove hcl, the sh containing in regeneration tail gas2、
so2And cl2Deng acid gas contaminants, reach the environmental protection standard that can discharge air.The waste heat of tail gas can produce low-pressure steam for outer
Boundary uses.Greatly reduce cost of investment, have good promotion prospect it is contemplated that domestic refinery market in c3/c4 field of comprehensive utilization
Not lower 50 sets of demand, the overall market amount of money is more than 5,000,000,000 yuan.
This utility model adopts sodium hydrate aqueous solution washing absorption know-why, in removing dehydrogenation unit regeneration tail gas
hcl、sh2、so2And cl2, clearance respectively reaches 99%, 97%, 98% and 90%.
Dehydrogenation unit regeneration tail gas and softened water through the laggard scrubbing tower of heat exchanger heat exchange, with the sodium hydroxide in scrubbing tower
Solution counter current contacting, absorbs hcl, sh therein2、so2And cl2Deng sour gas, sour gas by after alkali liquor absorption, then through net
Water spray removes gas exhausting device after remaining material, discharges gas and reaches environment protection emission requirement.
Reaction mechanism of the present utility model is:
Sodium hydroxide absorption chlorine tail gas equation:
2naoh+cl2=nacl+naclo+h2o
Sodium hydroxide absorbs sh2Tail gas equation:
Sodium hydroxide is a small amount of: naoh+h2S==nahs+h2o
Sodium hydroxide is excessive: 2naoh+h2S==na2s+2h2o
Sodium hydroxide absorbs so2Tail gas equation:
2naoh+so2 (a small amount of)=na2so3+h2o
Naoh+so2 (excessive)=nahso3
If appropriate, between n (naoh)/n (so2)=1---2, na2so3 and nahso3 has entirely.
As: n (naoh)/n (so2)=3/2 chemical equation is:
3naoh+2so2=na2so3+nahso3+h2o
Sodium hydroxide absorption hcl tail gas equation:
Naoh+hcl=nacl+h2o
Sodium hydroxide absorbs cl2Tail gas equation:
Cl2+2naoh=nacl+naclo+h2o
After of the present utility model process, hcl, sh2、so2And cl2Clearance respectively reaches 99%, 97%, 98% and
90%.
This processing system include heat exchanger, alkali liquor absorption tower, Venturi scrubber, water scrubber, defogging device, adsorbent,
The capital equipments such as alkali liquor pond, water tank, multiple pump, connect into technological process according to technological requirement successively.
Described heat exchanger is phase-change type heat exchanger, and thermal medium is high-temperature flue gas, and cold medium is normal temperature air, and high-temperature flue gas enter
Enter space and select inconel 600 material, air space selects carbon steel material, it is empty that the air after heat exchange enters stove as heating furnace
Gas.
Described alkali liquor absorption tower is venturi absorption tower, arranges bent portion between described absorption tower and described Venturi tube
Point, described bent tube section connects described absorption tower and described Venturi tube.Circulation alkali liquor is recycled into Venturi tube and absorption tower
The built-in defogging device in water scrubber upper strata, defogging device is made up of tinsel or nonmetal wire.Gas-liquid filter net nonmetallic
Silk is formed by multiply non-metallic fibers twisting, also can be sub-thread nonmetal wire.This silk screen defogging device not only can filter and be suspended in gas
Larger alkali liquor liquid foam in stream, and less and small alkali liquor foam can be filtered, be widely used in chemical industry, oil, tower manufacture,
In gas-liquid separation device in the industries such as pressure vessel.
Water scrubber lower end is sorbent segment, is provided with adsorbent, and water scrubber epimere adopts Water spray processing mode, under water scrubber
Duan Caiyong circulation alkali liquor is processed, and alkali liquor is entered after being boosted by pump and delivers to absorption tower hypomere and recycle.
Alkali liquor absorption tower bottom is connected with water scrubber bottom, when concentration of lye is not up to standard, the sodium sulfate of two tower bottoms,
Sodium sulfide, sodium chloride solution periodic exhaustion are sent outside battery limit (BL).
The described sour gas entering venturi alkali liquor absorption tower top is from top to bottom through alkali liquor absorption removing high concentration sulfuration
The Korrosionsmediums such as hydrogen, sulfur dioxide, chlorine, then enter water scrubber from the bottom to top, through washing the solution spraying of tower bottom and filling out
After material filters, gas enters discharges clean gas with after the defogging device under water purification spray from washing top of tower through technique.
Can effectively be processed containing Korrosionsmediums such as high-concentration hydrogen sulfide, sulfur dioxide, chlorine according to this utility model
High-temperature tail gas so that the tail gas after processing can reach environment protection emission and requires, adopt and high-temperature tail gas heat exchange simultaneously, reclaim this
Partial heat energy produces steam.
Technological process of the present utility model is as follows:
Venturi caustic wash tower, the alkali liquor counter current contacting with tower top spray, tail is entered after process tail gas heat exchange containing sour gas
Sour gas in gas generates salt with alkaline reaction, is down to washing tower bottom, the bottom setting whereabouts liquid of caustic wash tower collects liquid zone, area
Interior solution is delivered to Venturi tube top through intermediate booster pump and is recycled.Gas in bottom of towe from bottom to top to water scrubber upper flow,
Bottom of towe solution is delivered to inner-tower filling material layer top by the bottom of towe pump of water scrubber, and technique water pump delivers to technique clean water on defogging device
Portion, from the next gas in venturi caustic wash tower bottom at water tower bottom from bottom to top to water scrubber upper flow, gas sequentially passes through to be filled out
Material section bottom of towe solution rinses, after the washing of defogging device cleaning technology water, eliminate hydrogen sulfide in sour gas, sulfur dioxide, chlorine
The Korrosionsmediums such as gas and remaining alkali liquor etc., through washing top of tower discharger.
Innovative point:
1st, by alkali liquor absorption tower together with washing tower bottom UNICOM, rely on the power that gas obtains from venturi absorption tower
With the performance of gas itself, by the bottom of water scrubber, and carrying out from bottom to top absorb, purify after have washing top of tower row
Go out.Such mode decreases occupation area of equipment.Decrease investment.
Advantage:
1st, apply phase-change type heat exchanger, improve heat exchange efficiency:
Phase-change heat-exchanger is the process with material phase transformation, and high, medium and low temperature flue gas heat maximum absorption is converted transmission
Heat exchange, reduces high-temperature flue gas the new type heat exchanger of safe and efficient recycling.
Every equipment is according to flue-gas temperature, exhaust gas volumn, smoke components, flue size, air intake, water outlet and air-introduced machine position etc.
Factor considers design, reclaims senior middle school's low temperature fume waste heat and recycles
Have and will not produce incoagulable gas, working solution body heat physical property will not be made to deteriorate, so that envelope material is corroded and dissolve.
Cold water and cold wind can be heated simultaneously, also can close either party, heated water and gas temperature can also be adjusted,
Belong to domestic initiation.
The control system of heat exchanger is installed energy-saving benefit and is calculated display system in real time, can be according to real-time flue-gas temperature and cold
Medium temperature difference measuring and calculating display energy-saving benefit, and there is transporting function, Energy-saving Data just can be observed without the scene that reaches.
Energy-saving benefit is high, and in the case of ensureing that heating surface is not subject to cold end corrosion, phase transformation switching heat-exchanger can be by exhaust gas temperature
Drop to lower, when exhaust gas temperature is reduced to 115 degree, the energy-saving effect of phase transformation switching heat-exchanger is more notable.
2nd, this utility model reclaims the heat energy in tail gas by phase-change heat-exchanger, produces steam, improves utilization rate of waste heat,
Reduce plant energy consumption.
3rd, this utility model uses Flue Gas Desulfurization Technology with Venturi Scrubber, and it is less, de- that it is mainly characterized by voltage loss
Sulphur efficiency height, equipment availability height, high degree of automation, required operation maintenance personnel are few, specific energy consumption is relatively low.
4th, efficiently process the corrosivity such as hydrogen chloride containing high concentration, sulfur dioxide, chlorine by way of alkali liquor absorption to be situated between
The high-temperature tail gas of matter are so that the tail gas after processing can reach environment protection emission and require.
5th, adopt venturi alkali liquor absorption tower, improve desulfurized effect compared with merely using common alkali liquor absorption tower
More than 15%.
6th, this utility model process is simple, compared with the Acidic Gas Treating system of same type, decreases adsorption tower, investment
Few, operating cost low cost.
Specific embodiment:
As shown in figure 1, acid tail gas be petrochemical industry, Coal Chemical Industry process units discharge chloride, sulfur high temperature waste gas,
Wherein hydrogen chloride content is 0.3-0.5v%, and content of sulfur dioxide is 0.03-0.04v%, and chlorine content is 0.05-0.08v%.
Thermal medium is chloride, sulfur tail gas enters from the tower top of venturi alkali liquor absorption tower 2 to after 80 degree through phase-change heat-exchanger e-1 heat exchange, cold
Medium softened water generates 0.4mpa steam carrying device after heat exchange or is instrument gas in device.
The naoh aqueous solution that mass fraction is 12% is extracted out and neutralizing treatment liquid circulating pump by lye pump p-1 by alkali liquor pond v-4
The liquid mixing containing sodium sulfite and sodium chloride of the alkali liquor absorption tower t-2 bottom of p-2 conveying sends into venturi alkali liquor absorption
In the spray thrower of top of tower, neutralizing treatment liquid circulating pump p-3 is by the liquid containing sodium sulfite and sodium chloride for the alkali liquor absorption tower bottom
Body (sig water) is sent in the bottom spray thrower of the gas liquid mixture that Venturi tube sprays, and then weighs in sour gas and tower
The sig water of portion's spray and the high alkali liquid counter current contacting successively of tower top spray, the sour gas in tail gas generates salt with alkaline reaction,
It is down to bottom of towe.
Technique water pump p-5 delivers to technique clean water in the spray thrower on water scrubber t-3 defogging device top；The water washing of bottom of towe
Liquid circulating pump p-4 delivers to bottom of towe sig water above filler in the middle part of water scrubber (described filler is preferably graphite Raschig ring filler)
In spray thrower, the water in water tank v-5 is delivered to the spray thrower above water scrubber defogging device by technique water pump p-5.
The gas coming from alkali liquor absorption bottom of towe from washing tower bottom from lower to upper successively through packing section-spray and defogging device-
After spray by water scrubber t-3 tower top discharge, after testing by hydrogen chloride content in water scrubber t-3 tower top expellant gas≤
0.86ppm, content of sulfur dioxide≤0.9ppm, chlorine content is≤0.9ppm.
The above, only this utility model preferably specific embodiment, but protection domain of the present utility model is not
It is confined to this, any those familiar with the art, in the technical scope that this utility model discloses, can readily occur in
Change or replacement, all should cover within protection domain of the present utility model.Therefore, protection domain of the present utility model should
It is defined by the protection domain of claims.
Claims (5)
1. a kind of petrochemical industry acid tail gas processing system is it is characterised in that include heat exchanger, alkali liquor absorption tower, water scrubber, alkali
Liquid pool, lye pump, neutralizing treatment liquid circulating pump, water washing liquor circulating pump, technique water pump and water tank；
Described alkali liquor absorption tower is connected with the bottom of water scrubber, and the bottom of described alkali liquor absorption tower is provided with neutralizing treatment liquid storage area,
The bottom of described water scrubber is provided with water washing liquor memory block, and described neutralizing treatment liquid storage area is less than described water washing liquor memory block,
And described water washing liquor memory block is provided with the overfall of described neutralizing treatment liquid storage area；
Described neutralizing treatment liquid storage area is connected with described alkali liquor absorption tower by described neutralizing treatment liquid circulating pump and constitutes closed circuit,
Described water washing liquor memory block by washing with water liquid circulating pump be connected with water scrubber composition closed circuit；
Described alkali liquor pond is connected with described alkali liquor absorption tower by described lye pump, and described water tank is by described technique water pump and institute
State heat exchanger, alkali liquor absorption tower, water scrubber are respectively connected with.
2. petrochemical industry acid tail gas processing system according to claim 1 is it is characterised in that described alkali liquor absorption tower is
Venturi absorption tower, its top is provided with Venturi tube.
3. petrochemical industry acid tail gas processing system according to claim 2 is it is characterised in that described water scrubber is filler
Tower, described washing midsection arranges 2-3 section packing section, and described water scrubber epimere arranges defogging device, the setting of described defogging device top
Spray thrower.
4. petrochemical industry acid tail gas processing system according to claim 3 is it is characterised in that described neutralizing treatment liquid stores
Area is provided with box neutralizing treatment liquid seal pot, and described water washing liquor memory block is provided with box water washing liquor seal pot.
5. petrochemical industry acid tail gas processing system according to claim 4 is it is characterised in that described heat exchanger is phase transformation
Formula heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620739271.3U CN205886572U (en) | 2016-07-13 | 2016-07-13 | Petrochemical acidic tail gas processing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620739271.3U CN205886572U (en) | 2016-07-13 | 2016-07-13 | Petrochemical acidic tail gas processing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205886572U true CN205886572U (en) | 2017-01-18 |
Family
ID=57772625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620739271.3U Active CN205886572U (en) | 2016-07-13 | 2016-07-13 | Petrochemical acidic tail gas processing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205886572U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105536474A (en) * | 2015-12-24 | 2016-05-04 | 浙江埃森化学有限公司 | Device for removing hydrogen fluoride from tail gas by virtue of dynamic waves and implementation method for device |
| CN105944544A (en) * | 2016-07-13 | 2016-09-21 | 北京华福工程有限公司 | Petrochemical acidic tail gas treatment system |
-
2016
- 2016-07-13 CN CN201620739271.3U patent/CN205886572U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105536474A (en) * | 2015-12-24 | 2016-05-04 | 浙江埃森化学有限公司 | Device for removing hydrogen fluoride from tail gas by virtue of dynamic waves and implementation method for device |
| CN105536474B (en) * | 2015-12-24 | 2018-03-27 | 浙江埃森化学有限公司 | A kind of device and its implementation that hydrogen fluoride in tail gas is removed using dynamic wave |
| CN105944544A (en) * | 2016-07-13 | 2016-09-21 | 北京华福工程有限公司 | Petrochemical acidic tail gas treatment system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105944544A (en) | Petrochemical acidic tail gas treatment system | |
| CN103977664B (en) | A kind of method of flue gas desulfurization denitration dust-removing | |
| CN101254392B (en) | Energy-saving type sodium sulphite circulation desulfurizing device and method | |
| CN108079762A (en) | Flue gas desulphurization system and the method that flue gas desulfurization is carried out using the flue gas desulphurization system | |
| CN108786398B (en) | Flue gas desulfurization and regeneration integrated tower and renewable wet flue gas desulfurization method | |
| CN106621768A (en) | Ammonia process of desulfurization integral purification device and method for acid gas sulfur recovery tail gas | |
| CN109966879A (en) | The method and apparatus of sulphur tail gas after incineration sodium method deep desulfuration control alkali | |
| CN205886572U (en) | Petrochemical acidic tail gas processing system | |
| CN104208994A (en) | Sodium metabisulfite exhaust gas desulfurization process | |
| CN104119946B (en) | A kind of catalytic cracking flue gas desulfurization and Acidic Gas Treating technique | |
| CN210366982U (en) | Absorption device for potassium sulfate byproduct hydrochloric acid by Mannheim method | |
| CN103316577B (en) | Salt slurry-purified brine flue gas desulfurization technique | |
| CN206823499U (en) | A kind of processing system of Claus device exhausts | |
| CN110013765A (en) | A kind of ship tail gas denitration integrated device | |
| CN108786397A (en) | A kind of processing method and system of Claus device exhausts | |
| CN107388847A (en) | Heat reclaim unit and technique in flue gas desulfurization and denitration technique | |
| CN102614768B (en) | Desulfurization reactor device | |
| CN108144416B (en) | Bromine blowing tail gas overall process recovery method and equipment | |
| CN206549359U (en) | A kind of incinerator gas washing and Waste Water Treatment | |
| CN206276226U (en) | The ammonia process of desulfurization integrated purifying device of sour gas sulfur recovery tail gas | |
| CN214513744U (en) | Hazardous waste high temperature burns flue gas wet process deacidification device | |
| CN206121505U (en) | Flue gas desulphurization device of zinc smelting power plant for self -supply | |
| CN108636037A (en) | A kind of catalytic cracking flue gas wet desulphurization denitration dust collecting technique and system and device | |
| CN210993719U (en) | White smoke-flue gas deacidification integration processing system disappears | |
| CN211487169U (en) | Sodium-alkali method desulphurization device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20201216 Granted publication date: 20170118 |
|
| PD01 | Discharge of preservation of patent | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20231216 Granted publication date: 20170118 |
|
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20231216 Granted publication date: 20170118 |