CN106365125A - Device and method for absorbing free sulfur trioxide in fuming sulfuric acid through concentrated sulfuric acid - Google Patents
Device and method for absorbing free sulfur trioxide in fuming sulfuric acid through concentrated sulfuric acid Download PDFInfo
- Publication number
- CN106365125A CN106365125A CN201610745904.6A CN201610745904A CN106365125A CN 106365125 A CN106365125 A CN 106365125A CN 201610745904 A CN201610745904 A CN 201610745904A CN 106365125 A CN106365125 A CN 106365125A
- Authority
- CN
- China
- Prior art keywords
- acid
- concentrated sulphuric
- sulphuric acid
- circulating slot
- absorption tower
- 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.)
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Links
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 title claims abstract description 73
- AKEJUJNQAAGONA-UHFFFAOYSA-N sulfur trioxide Chemical compound O=S(=O)=O AKEJUJNQAAGONA-UHFFFAOYSA-N 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 12
- HIFJUMGIHIZEPX-UHFFFAOYSA-N sulfuric acid;sulfur trioxide Chemical compound O=S(=O)=O.OS(O)(=O)=O HIFJUMGIHIZEPX-UHFFFAOYSA-N 0.000 title abstract 3
- 238000010521 absorption reaction Methods 0.000 claims abstract description 54
- 239000002253 acid Substances 0.000 claims abstract description 48
- 239000007788 liquid Substances 0.000 claims abstract description 27
- 238000003860 storage Methods 0.000 claims abstract description 20
- 238000012856 packing Methods 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000006260 foam Substances 0.000 claims abstract description 3
- 235000011149 sulphuric acid Nutrition 0.000 claims description 57
- 239000001117 sulphuric acid Substances 0.000 claims description 57
- 238000005086 pumping Methods 0.000 claims description 18
- 125000004122 cyclic group Chemical group 0.000 claims description 13
- 239000003595 mist Substances 0.000 claims description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 4
- 239000010962 carbon steel Substances 0.000 claims description 4
- 238000009826 distribution Methods 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims 1
- 230000037431 insertion Effects 0.000 claims 1
- 238000007872 degassing Methods 0.000 abstract description 6
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 229910052717 sulfur Inorganic materials 0.000 abstract description 2
- 239000011593 sulfur Substances 0.000 abstract description 2
- 239000007791 liquid phase Substances 0.000 abstract 1
- 238000007789 sealing Methods 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
- 230000001502 supplementing effect Effects 0.000 abstract 1
- 238000009827 uniform distribution Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 36
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 239000005864 Sulphur Substances 0.000 description 2
- 239000012717 electrostatic precipitator Substances 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 210000005056 cell body Anatomy 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000005945 translocation Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/69—Sulfur trioxide; Sulfuric acid
- C01B17/74—Preparation
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Treating Waste Gases (AREA)
- Gas Separation By Absorption (AREA)
Abstract
The invention discloses a device and method for absorbing free sulfur trioxide in fuming sulfuric acid through concentrated sulfuric acid. The device comprises a concentrated sulfuric acid absorption tower, a circulation groove, an arch channel, an overflow pipe, a circulation acid pump, an exhaust suction fan and a degassing and low-altitude exhaust pipe. The concentrated sulfuric acid absorption tower integrates the functions of acid separation, foam catching, liquid sealing and overflowing, it is ensured that sufficient SO3 gas is sufficiently absorbed and does not escape, and concentrated sulfuric acid is recycled; an automatic water supplementing device ensures the best SO3 absorption effect of the concentrated sulfuric acid; the circulation acid pump is adopted as liquid power equipment, the concentrated sulfuric acid is conveyed to a degassing tower acid distributing device, and after uniform distribution is performed through a packing layer, sufficient reverse flow contact of gas and liquid phases is achieved; the exhaust suction fan is adopted as gas power equipment, free SO3 gas escaping from a 104.5% fuming sulfuric acid storage tank, an acid containing device and an underground tank are sucked into the absorption tower to be sufficiently absorbed, gas reaching the standard is exhausted out, and the sulfur resource comprehensive utilization rate is increased.
Description
Technical field
The invention belongs to chemical industry environmental protection field, it is related to metallurgical off-gas acid-making and in particular to a kind of concentrated sulphuric acid absorbs 104.5%
The device and method of free sulfur trioxide in oleum.
Background technology
104.5% oleum is 20% oleum it may be assumed that containing 20% free so again3Oleum, at 104.5%
During the storage of cigarette sulphuric acid, dress acid, dissociate so in a large number3Gas can escape from storage tank and tank car top, forms a large amount of acid mists, to week
Surrounding environment causes serious pollution.Traditional acid making system dry matter translocation often utilizes the negative of cleaning procedure electrostatic precipitator exhaust pass
Pressure carries out effective removing of flue gas.However, 104.5% oleum has particularity, deaerate according to traditional method, on the one hand
Dissociate so in a large number3Gas easily forms concentrated sulphuric acid, etching glass steel flue gas duct with absorption moisture in degassing pipeline, causes deaeration pipe
Road blocks；On the other hand dissociate so in a large number3Gas can be combined production acid mist with electrostatic precipitator outlet large quantity of moisture, in subsequent handling
Cannot remove, a large amount of acid mists enter blower fan and can corrode impeller, and follow-up equipment and catalyst etc. can be adversely affected, and lead to tail
Gas chimney is smoldered.
Content of the invention
The present invention is directed to the deficiency that above-mentioned prior art exists, in order to solve 104.5% oleum tank top and dress acid
The free sulfur trioxide that tank car top cover (the sour device of dress) escapes, there is provided a kind of concentrated sulphuric acid absorbs free three oxidations in oleum
The device and method of sulfur.
The present invention adopts the following technical scheme that a kind of employing concentrated sulphuric acid absorbs the dress of free sulfur trioxide in oleum
Put, including concentrated sulphuric acid absorption tower, circulating slot, underground tank, the sour device of dress, 104.5% oleum storage tank；Concentrated sulphuric acid absorption tower is certainly
Lower and upper set manhole, grate plate, packing layer, acid separating device, mist eliminating device and upper manhole respectively；104.5% oleum storage tank
Absorption tower bottom is passed to by pipeline, the sour device of dress is communicated by entrance deaeration pipe with absorption tower tower body bottom, absorption tower tower body
Bottom has arcuate channels, and extends to circulating slot bottom, and circulating slot is provided with overflow pipe and automatic watering pipe, and overflow pipe end is inserted
In underground tank, between circulating slot and the acid separating device on absorption tower, it is provided with the cyclic acid pump for continuous conveying absorbing liquid；Absorption tower
Top be connected with pumping blower fan, the outfan of pumping blower fan connects low-altitude discharged pipe.
Further, arcuate channels 8 top is less than the entrance point of overflow pipe.
Further, automatic watering pipe end extends to circulation trench bottom, the automatic water-adding valve of automatic watering pipe and circulation
The concentration interlocking of groove.
Further, the input of pumping blower fan is connected with the top on absorption tower by 316l rustless steel deaeration pipe.
Further, the low-altitude discharged pipe that the outfan of pumping blower fan connects is ordinary carbon steel low latitude evacuated tube, common carbon
The top of steel low latitude evacuated tube is provided with elbow.
The method that a kind of employing said apparatus concentrated sulphuric acid absorbs free sulfur trioxide in 104.5% oleum, concrete bag
Include following steps:
A.104.5% free so escaping in oleum storage tank, the sour device of dress and underground tank3From absorption tower
Bottom enters, and the concentrated sulphuric acid cyclic acid pump that mass concentration in circulating slot is 93-98% is delivered to absorption tower and divides acid dress
Put, with free so from bottom to top entering in absorption tower after being uniformly distributed through packing layer3Gas uniform contact, so3Gas is dense
Sulphuric acid fully absorbs generation concentrated sulphuric acid, and the concentrated sulphuric acid of generation flows in circulating slot, cyclic absorption；
B. the automatic water-adding valve on automatic watering pipe adjusts according to circulating slot sulfuric acid concentration and enters adding in circulating slot
The water yield, controls circulating slot h 2 so 4 concentration to maintain 98.5-99%, to so3Gas is fully absorbed, with so3Gas
The continuous absorption of body and constantly carrying out of adding water, the liquid level of circulating slot is gradually increasing, and after reaching a certain height, concentrated sulphuric acid is through overflow
Pipe flow enters underground tank, finally squeezes into sour storehouse；
C. free so of 104.5% oleum storage tank described in step a, the sour device of dress and underground tank effusion3
Gas, after packing layer gas distribution, Pu foam layer mist eliminating, tail gas up to standard carries out low latitude row by being evacuated blower fan feeding low-altitude discharged pipe
Put.
Preferably, circulating slot sulfuric acid concentration is controlled to maintain 98.5%.
The invention has the beneficial effects as follows: the present invention includes concentrated sulphuric acid absorption tower, circulating slot, arcuate channels, overflow pipe, circulation
Sour pump, pumping blower fan, degassing and low-altitude discharged pipe.Concentrated sulphuric acid absorption tower integrates point acid, mist eliminating, fluid-tight, a relief function, protects
Demonstrate,prove so3Gas fully absorbs, do not escape recycling with concentrated sulphuric acid；Automatic water-replenishing device of the present invention controls absorption concentrated sulphuric acid
Concentration maintains 98.5% about it is ensured that optimal absorption effect；Cyclic acid pump, as hydrodynamic equipment, concentrated sulphuric acid is conveyed
To degassing tower acid separating device, after being uniformly distributed through packing layer, realize the biphase abundant counter current contacting of air-liquid；Pumping blower fan is as gas
Body power-equipment, by free so of 104.5% oleum storage tank, the sour device of dress and underground tank effusion3Gas suction absorption tower is filled
Divide and absorb, gas low-altitude discharged up to standard, improve the comprehensive utilization ratio of Sulphur ressource, the present invention is simple to operate, absorption efficiency is high, subtracts
Light environmental pollution.
Brief description
Fig. 1 is the process flow diagram of the present invention.
In figure: 1- underground tank, the sour device of 2- dress, 3-104.5% oleum storage tank, 4- overflow pipe, 5- entrance deaeration pipe,
6- concentrated sulphuric acid absorption tower, the upper manhole of 7-, 8- arcuate channels, 9- circulating slot, manhole under 10-, 11- grate plate, 12- packing layer, 13-
Acid separating device, 14- mist eliminating device, 15- cyclic acid pump, 16- is evacuated blower fan, 17- low-altitude discharged pipe, 18- automatic watering pipe.
Specific embodiment
A kind of concentrated sulphuric acid absorbs the device of free sulfur trioxide gas in oleum, including concentrated sulphuric acid absorption tower 6, circulation
Groove 9, arcuate channels 8, overflow pipe 4, cyclic acid pump 15, pumping blower fan 16, degassing 5 and low-altitude discharged pipe 17, concentrated sulphuric acid absorption tower 6
Set grate plate 11, lower manhole 10, filler 12, acid separating device 13, mist eliminating device 14 and upper manhole 7 from bottom to top respectively, under tower body
Portion opens arcuate channels 8 and extends to circulating slot 9 bottom to be fixed, and circulating slot 9 overflow pipe 4 inserts underground tank 1 bottom, and arcuate channels 8 top is low
In cell body overflow pipe 4；Automatic watering pipe 18 extends to circulation trench bottom, automatic water-adding valve and circulating slot concentration interlocking 18；Circulation
Between groove 9 and absorption tower 6, one cyclic acid pump 15 of configuration is as the continuous conveying device of absorbing liquid；Pumping blower fan 16 conveys for gas
There is provided power, front and back ends connect 316l rustless steel deaeration pipe 5 and ordinary carbon steel low-altitude discharged pipe 17, low-altitude discharged pipe 17 respectively
Top sets elbow.
Technological process is: 98.5% concentrated sulphuric acid cyclic acid pump 15 in circulating slot 9 is delivered to absorption tower 6 acid separating device 13,
With free so from bottom to top after being uniformly distributed through filler 123Gas uniform contact, so3Gas is fully absorbed generation by concentrated sulphuric acid
Concentrated sulphuric acid；Automatic water-adding valve on automatic watering pipe 18 adjusts amount of water according to circulating slot sulfuric acid concentration, controls circulating slot 9 sulphuric acid
Concentration maintains 98.5% about, to ensure to so3The optimal absorption effect of gas；With so3The continuous absorption of gas and adding water
Constantly carry out, circulating slot 9 liquid level is gradually increasing, after reaching a certain height concentrated sulphuric acid through overflow pipe 4 flow into underground tank 1, finally
Squeeze into sour storehouse 3；The sour device 2 of 104.5% oleum storage tank 3, dress and free so of underground tank 1 effusion3Gas, from absorption tower bottom
Portion enters, and after packing layer 12 gas distribution, mist eliminating device 14 mist eliminating, tail gas up to standard is by being evacuated blower fan 16 and send into low-altitude discharged pipe 17
Row low-altitude discharged；Whole set process achieves free so3Effective removing of gas, alleviates environmental pollution, improves Sulphur ressource
Utilization rate.
Embodiment 1
The liquid concentrated sulphuric acid of concentration 98.5% is injected into circulating slot 9 from dress acid tank car, checks fuming acid underground tank 1, dress acid in advance
The pipelines such as device 2,104.5% oleum storage tank 3, the entrance deaeration pipe 5 on absorption tower, pumping blower fan 16, low-altitude discharged pipe 17,
Valve is it is ensured that gas circuit is unimpeded.Free so of effusion in the sour device 2 of 104.5% oleum storage tank 3, dress and underground tank 13From suction
Receive tower bottom to be passed through.Start absorption tower cyclic acid pump 15, cyclic acid pump 15 flow about 8m when circulating slot 9 liquid level reaches 1m3/ h,
By concentrated sulphuric acid be delivered to absorption tower top acid separating device 13, through packing layer 12 from tower top from however be uniformly distributed, with from bottom to top
Free so3Gas is fully contacted, absorbs, so3Gas is fully absorbed generation concentrated sulphuric acid by concentrated sulphuric acid, and the concentrated sulphuric acid of generation flows into
Recycle in circulating slot 9, circulating slot 9 liquid level reached 0.98m at that time, opened the automatic watering on circulating slot automatic watering pipe 18
Valve, amount of water ensures in 0.1m3/h.With the growth of soak time, circulating slot 9 liquid level gradually rises, and liquid level is logical more than during 1m
Cross overflow pipe 4 and flow into underground tank 1, circulating slot liquid level remains at 1m.After pumping blower fan 16 starts, entrance tolerance is about
1000m3/ h, so in low-altitude discharged tail gas3Content is 43mg/nm3, qualified discharge.
Embodiment 2
The liquid concentrated sulphuric acid of concentration 98% is injected into circulating slot 9 from dress acid tank car, checks fuming acid underground tank 1, dress acid dress in advance
Put 2, oleum storage tank 3, absorption tower entrance deaeration pipe 5, pumping blower fan 16, the pipeline such as low-altitude discharged pipe 17, valve it is ensured that gas
Road is unimpeded.Free so of effusion in the sour device 2 of 104.5% oleum storage tank 3, dress and underground tank 13Lead to from absorption tower bottom
Enter.Start absorption tower cyclic acid pump 15, cyclic acid pump flow about 8m when circulating slot liquid level reaches 1m3/ h, concentrated sulphuric acid is conveyed
To absorb tower top acid separating device 13, through packing layer 12 from tower top from however be uniformly distributed, with free so from bottom to top3Gas
After being fully contacted, absorbing, concentrated sulphuric acid concentration is slightly elevated to enter circulating slot 9, and the concentrated sulphuric acid flowing in circulating slot 9 recycles,
When circulating slot liquid level 0.98m, open the automatic water-adding valve on circulating slot automatic watering pipe 18, amount of water ensures in 0.08m3/h.
Circulating slot h 2 so 4 concentration is controlled to maintain 98.5%, with the growth of soak time, circulating slot 9 liquid level gradually rises, liquid level
More than during 1m, underground tank 1 is flowed into by overflow pipe 4, circulating slot liquid level remains at 1m.After pumping blower fan 16 starts, enter implication
Amount is about 1000m3/ h, so in low-altitude discharged tail gas3Content is 40 mg/nm3, qualified discharge.
Embodiment 3
The liquid concentrated sulphuric acid of concentration 93% is injected into circulating slot 9 from dress acid tank car, checks fuming acid underground tank 1, dress acid dress in advance
Put 2, oleum storage tank 3, absorption tower entrance deaeration pipe 5, pumping blower fan 16, the pipeline such as low-altitude discharged pipe 17, valve it is ensured that gas
Road is unimpeded.Free so of effusion in the sour device 2 of 104.5% oleum storage tank 3, dress and underground tank 13Lead to from absorption tower bottom
Enter.Start absorption tower cyclic acid pump 15, cyclic acid pump flow about 6m when circulating slot liquid level reaches 1m3/ h, concentrated sulphuric acid is conveyed
To absorb tower top acid separating device 13, through packing layer 12 from tower top from however be uniformly distributed, with free so from bottom to top3Gas
After being fully contacted, absorbing, concentrated sulphuric acid concentration is slightly elevated to enter circulating slot 9, and the concentrated sulphuric acid flowing in circulating slot 9 recycles,
When circulating slot liquid level 0.98m, open the automatic water-adding valve on circulating slot automatic watering pipe 18, amount of water ensures in 0.08m3/h.
Circulating slot h 2 so 4 concentration is controlled to maintain 99%.With the growth of soak time, circulating slot 9 liquid level gradually rises, and liquid level surpasses
Cross, during 1m, underground tank 1 is flowed into by overflow pipe 4, circulating slot liquid level remains at 1m.After pumping blower fan 16 starts, entrance tolerance
It is about 1000m3/ h, so in low-altitude discharged tail gas3Content is 35 mg/nm3, qualified discharge.
Claims (7)
1. a kind of concentrated sulphuric acid absorb free sulfur trioxide in oleum device it is characterised in that: include concentrated sulphuric acid absorption tower
(6), circulating slot (9), underground tank (1), the sour device (2) of dress, 104.5% oleum storage tank (3)；Concentrated sulphuric acid absorption tower from lower and
Upper set manhole (10), grate plate (11), packing layer (12), acid separating device (13), mist eliminating device (14) and upper manhole respectively
(7)；104.5% oleum storage tank (3) passes to concentrated sulphuric acid absorption tower bottom, dress acid device (2) and absorption tower tower body by pipeline
Bottom is communicated by entrance deaeration pipe (5), and absorption tower tower body bottom has arcuate channels (8), and extends to circulating slot (9) bottom,
Circulating slot (9) is provided with overflow pipe (4) and automatic watering pipe (18), in overflow pipe (4) end insertion underground tank (1), circulating slot (9)
It is provided with the cyclic acid pump (15) for continuous conveying absorbing liquid and the acid separating device (13) on absorption tower between；The top on absorption tower is even
It is connected to pumping blower fan (16), the outfan of pumping blower fan connects low-altitude discharged pipe (17).
2. as claimed in claim 1 a kind of concentrated sulphuric acid absorb free sulfur trioxide in oleum device it is characterised in that:
Arcuate channels (8) top is less than the entrance point of overflow pipe.
3. as claimed in claim 1 a kind of concentrated sulphuric acid absorb free sulfur trioxide in oleum device it is characterised in that:
Automatic watering pipe (18) end extends to circulating slot (9) bottom, and the automatic water-adding valve of automatic watering pipe (18) is dense with circulating slot
Degree interlocking.
4. as claimed in claim 1 a kind of concentrated sulphuric acid absorb free sulfur trioxide in oleum device it is characterised in that:
The input of pumping blower fan is connected with the top on concentrated sulphuric acid absorption tower by 316l rustless steel deaeration pipe.
5. as claimed in claim 1 a kind of concentrated sulphuric acid absorb free sulfur trioxide in oleum device it is characterised in that:
The low-altitude discharged pipe (17) that the outfan of pumping blower fan connects is ordinary carbon steel low latitude evacuated tube, ordinary carbon steel low latitude evacuated tube
Top is provided with elbow.
6. a kind of method that free sulfur trioxide in oleum is absorbed with concentrated sulphuric acid using device as claimed in claim 1, its
It is characterised by: specifically include following steps:
A. free so escaping in 104.5% oleum storage tank (3), the sour device (2) of dress and underground tank (1)3From absorption tower
Portion enters, and the concentrated sulphuric acid cyclic acid pump (15) that mass concentration in circulating slot (9) is 93-98% is delivered to absorption tower and divides acid dress
Put (13), with free so from bottom to top entering in absorption tower after being uniformly distributed through packing layer (12)3Gas uniform contact, so3
Gas is fully absorbed generation concentrated sulphuric acid by concentrated sulphuric acid, and the concentrated sulphuric acid of generation flows in circulating slot (9), cyclic absorption；
B. the automatic water-adding valve on automatic watering pipe (18) adjusts according to circulating slot () 9 sulfuric acid concentration and enters in circulating slot (9)
Amount of water, controls circulating slot h 2 so 4 concentration to maintain 98.5-99%, to so3Gas is fully absorbed, with so3Gas
Continuous absorption and constantly carrying out of adding water, the liquid level of circulating slot (19) is gradually increasing, and after reaching a certain height, concentrated sulphuric acid is through overflowing
Flow tube (4) flows into underground tank (1), finally squeezes into sour storehouse；
C. free so that 104.5% oleum storage tank (3) described in step a, the sour device (2) of dress and underground tank (1) escape3Gas
Body, after packing layer gas distribution, Pu foam layer mist eliminating, tail gas up to standard carries out low latitude by being evacuated blower fan (16) feeding low-altitude discharged pipe (17)
Discharge.
7. a kind of method that concentrated sulphuric acid absorbs free sulfur trioxide in 104.5% oleum as claimed in claim 6, it is special
Levy and be: control circulating slot (9) sulfuric acid concentration to maintain 98.5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610745904.6A CN106365125B (en) | 2016-08-29 | 2016-08-29 | A kind of concentrated sulfuric acid absorbs the device and method for the sulfur trioxide that dissociates in oleum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610745904.6A CN106365125B (en) | 2016-08-29 | 2016-08-29 | A kind of concentrated sulfuric acid absorbs the device and method for the sulfur trioxide that dissociates in oleum |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106365125A true CN106365125A (en) | 2017-02-01 |
| CN106365125B CN106365125B (en) | 2019-08-06 |
Family
ID=57903708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610745904.6A Active CN106365125B (en) | 2016-08-29 | 2016-08-29 | A kind of concentrated sulfuric acid absorbs the device and method for the sulfur trioxide that dissociates in oleum |
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| Country | Link |
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| CN (1) | CN106365125B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107051124A (en) * | 2017-03-24 | 2017-08-18 | 鲁西化工集团股份有限公司 | The environmentally friendly recovery system and technique of a kind of emptying storage tank gas |
| CN109879255A (en) * | 2019-04-27 | 2019-06-14 | 招远市招金金合科技有限公司 | A kind of system and method for pyrite-based sulfuric acid production system production refined sulfuric acid |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201186882Y (en) * | 2007-12-29 | 2009-01-28 | 长沙有色冶金设计研究院 | Drying or absorbing tower for preparing sulfuric acid |
| CN101905872A (en) * | 2010-07-30 | 2010-12-08 | 金川集团有限公司 | Device for absorbing SO3 generated in process of preparing sulfuric acid |
| CN202164116U (en) * | 2011-06-29 | 2012-03-14 | 安徽博远化工有限公司 | Sulphuric acid reaction unit |
| CN102556982A (en) * | 2011-12-30 | 2012-07-11 | 江苏新宏大集团有限公司 | Low-temperature exhaust heat system for sulfuric acid recovering device and application of low-temperature exhaust heat system |
-
2016
- 2016-08-29 CN CN201610745904.6A patent/CN106365125B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201186882Y (en) * | 2007-12-29 | 2009-01-28 | 长沙有色冶金设计研究院 | Drying or absorbing tower for preparing sulfuric acid |
| CN101905872A (en) * | 2010-07-30 | 2010-12-08 | 金川集团有限公司 | Device for absorbing SO3 generated in process of preparing sulfuric acid |
| CN202164116U (en) * | 2011-06-29 | 2012-03-14 | 安徽博远化工有限公司 | Sulphuric acid reaction unit |
| CN102556982A (en) * | 2011-12-30 | 2012-07-11 | 江苏新宏大集团有限公司 | Low-temperature exhaust heat system for sulfuric acid recovering device and application of low-temperature exhaust heat system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107051124A (en) * | 2017-03-24 | 2017-08-18 | 鲁西化工集团股份有限公司 | The environmentally friendly recovery system and technique of a kind of emptying storage tank gas |
| CN109879255A (en) * | 2019-04-27 | 2019-06-14 | 招远市招金金合科技有限公司 | A kind of system and method for pyrite-based sulfuric acid production system production refined sulfuric acid |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106365125B (en) | 2019-08-06 |
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