CN203764111U - Five-tower nitroso-sulfuric acid production device - Google Patents
Five-tower nitroso-sulfuric acid production device Download PDFInfo
- Publication number
- CN203764111U CN203764111U CN201420097643.8U CN201420097643U CN203764111U CN 203764111 U CN203764111 U CN 203764111U CN 201420097643 U CN201420097643 U CN 201420097643U CN 203764111 U CN203764111 U CN 203764111U
- Authority
- CN
- China
- Prior art keywords
- sulfuric acid
- gas
- circulating pump
- tower
- outlet
- 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.)
- Expired - Lifetime
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- VQTGUFBGYOIUFS-UHFFFAOYSA-N nitrosylsulfuric acid Chemical compound OS(=O)(=O)ON=O VQTGUFBGYOIUFS-UHFFFAOYSA-N 0.000 title claims abstract description 13
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 124
- 238000010521 absorption reaction Methods 0.000 claims abstract description 39
- RXQNKKRGJJRMKD-UHFFFAOYSA-N 5-bromo-2-methylaniline Chemical compound CC1=CC=C(Br)C=C1N RXQNKKRGJJRMKD-UHFFFAOYSA-N 0.000 claims description 41
- 230000008676 import Effects 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 9
- 239000007789 gas Substances 0.000 abstract description 59
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 abstract description 18
- 238000006243 chemical reaction Methods 0.000 description 11
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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- Treating Waste Gases (AREA)
Abstract
The utility model relates to a five-tower nitroso-sulfuric acid production device. The five-tower nitroso-sulfuric acid production device comprises five nitroso-sulfuric acid absorption towers which are sequentially connected with one another, each nitroso-sulfuric acid absorption tower is provided with a sulfuric acid inlet, a sulfuric acid outlet, a gas inlet and a gas outlet, the gas outlet I is connected with the gas inlet II, the gas outlet II and the gas inlet III are connected with each other, the gas outlet III and the gas inlet IV are connected with each other, and the gas outlet IV and the gas inlet V are connected with each other; the sulfuric acid outlet V is connected with the sulfuric acid inlet IV through a circulating pump, the sulfuric acid outlet IV is connected with the sulfuric acid inlet III through a circulating pump, the sulfuric acid outlet III is connected with the sulfuric acid inlet II through a circulating pump, the sulfuric acid outlet II is connected with the sulfuric acid inlet I through a circulating pump, and the sulfuric acid outlet I is connected with a finished product collecting opening through a circulating pump. The five-tower nitroso-sulfuric acid production device is reasonable in structural design, sulfuric acid can be repeatedly used, the content of nitrogen oxides in tail gas can be greatly reduced, the treatment cost of tail gas can be lowered, and economic benefits can be increased.
Description
Technical field
The utility model relates to a kind of process units of nitrosylsulfuric acid, particularly a kind of process units of five tower nitrosylsulfuric acids.
Background technology
The process units of existing five tower nitrosylsulfuric acids is made up of the first nitrosylsulfuric acid absorption tower and treating tail gas tower, due to the reaction of sulfuric acid and nitrogen oxide gas not exclusively, after making tail gas out, nitrogen oxide content is still very high, and the cost of processing this tail gas is very high.And reaction yield is not high yet, has increased production cost, has reduced economic benefit.
Utility model content
Technical problem to be solved in the utility model is to overcome existing above-mentioned deficiency in prior art, and a kind of reasonable in design is provided, and can increase substantially reaction yield, reduces the process units of five tower nitrosylsulfuric acids of exhaust emissions.
The utility model solves the problems of the technologies described above adopted technical scheme: a kind of process units of five tower nitrosylsulfuric acids, it is characterized in that: it comprises five nitrosylsulfuric acid absorption towers that connect successively, nitrosylsulfuric acid absorption tower is provided with sulfuric acid import, sulfuric acid outlet, gas feed, gas vent, a described gas vent is connected with No. two gas feeds, No. two gas vent is connected with No. three gas feeds, No. three gas vent is connected with No. four gas feeds, and No. four gas vent is connected with No. five gas feeds; No. five described sulfuric acid outlets are connected with No. four sulfuric acid imports by circulating pump, No. four sulfuric acid outlets are connected with No. three sulfuric acid imports by circulating pump, No. three sulfuric acid outlets are connected with No. two sulfuric acid imports by circulating pump, No. two sulfuric acid outlets are connected with a sulfuric acid import by circulating pump, and a sulfuric acid outlet is collected mouth by circulating pump and finished product and is connected.
No. five gas outlet ends described in the utility model are provided with separator, and the upper end of separator leads to air, and the lower end of separator is connected with No. five sulfuric acid imports.
On circulating pump described in the utility model, be provided with heat exchanger, one end of heat exchanger is connected with circulating pump, and the other end is connected with the upper end on nitrosylsulfuric acid absorption tower.
The utility model compared with prior art, has following positive effect: reasonable in design, sulfuric acid can be repeated to utilize, and has improved the utilization rate of raw material.Tail gas by five nitrosylsulfuric acid absorption tower reactions, has significantly reduced discharge nitrogen oxide in tail gas content successively, has reduced the processing cost of tail gas, has improved economic benefit.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing and by embodiment, the utility model is described in further detail.
Embodiment:
Referring to Fig. 1, the present embodiment comprises five nitrosylsulfuric acid absorption towers that connect successively, nitrosylsulfuric acid absorption tower is provided with sulfuric acid import, sulfuric acid outlet, gas feed, gas vent, a described gas vent 12 is connected with No. two gas feeds 21, No. two gas vent 22 is connected with No. three gas feeds 31, No. three gas vent 32 is connected with No. four gas feeds 41, and No. four gas vent 42 is connected with No. five gas feeds 51; No. five described sulfuric acid outlets 54 are connected with No. four sulfuric acid imports 43 by circulating pump 6, No. four sulfuric acid outlets 44 are connected with No. three sulfuric acid imports 33 by circulating pump 6, No. three sulfuric acid outlets 34 are connected with No. two sulfuric acid imports 23 by circulating pump 6, No. two sulfuric acid outlets 24 are connected with a sulfuric acid import 13 by circulating pump 6, and a sulfuric acid outlet 14 is collected mouth 7 by circulating pump 6 and finished product and is connected.
In the present embodiment, No. five gas vent 52 ends are provided with separator 8, and the upper end of separator 8 leads to air, and the lower end of separator 8 is connected with No. five sulfuric acid imports 3.
In the present embodiment, be provided with heat exchanger 9 on circulating pump 6, one end of heat exchanger 9 is connected with circulating pump 6, and the other end is connected with the upper end on nitrosylsulfuric acid absorption tower.
When use, in five nitrosylsulfuric acid absorption towers, inject sulfuric acid, wherein the sulfuric acid in nitrosylsulfuric acid absorption tower 1, No. two nitrosylsulfuric acid absorption towers 2, No. three nitrosylsulfuric acid absorption towers 3, No. four nitrosylsulfuric acid absorption towers 4 is the oleum of concentration 105%, and the sulfuric acid in No. five nitrosylsulfuric acid absorption towers 5 is the concentrated sulfuric acid of concentration 98%.Nitrogen oxide gas is NO:NO
2=1:1(volume ratio) standard oxidation nitrogen 10.
Standard oxidation nitrogen 10 enters nitrosylsulfuric acid absorption tower 1 No. one from a gas feed 11, standard oxidation nitrogen 10 and the reaction of oleum counter current contacting, obtain having certain density nitrosylsulfuric acid solution, if the concentration of nitrosylsulfuric acid reaches pre-provisioning request, collect mouthful 7 discharges from finished product, if concentration does not reach pre-provisioning request, by circulating pump 6, get back in a nitrosylsulfuric acid absorption tower 1 through heat exchanger 9, recycle.
The tail gas on a nitrosylsulfuric acid absorption tower 1 is discharged from a gas vent 12, enter No. two nitrosylsulfuric acid absorption towers 2 from No. two gas feeds 21, and react with the oleum counter current contacting in No. two nitrosylsulfuric acid absorption towers 2, reacted liquid flows to a sulfuric acid import 13 from No. two sulfuric acid outlets 24, enters the interior reaction treatment in nitrosylsulfuric acid absorption tower 1 No. one.
The tail gas on No. two nitrosylsulfuric acid absorption towers 2 is discharged from No. two gas vents 22, enter No. three nitrosylsulfuric acid absorption towers 3 from No. three gas feeds 31, and react with the oleum counter current contacting in No. three nitrosylsulfuric acid absorption towers 3, reacted liquid flows to No. two sulfuric acid imports 23 from No. three sulfuric acid outlets 34, enters the interior reaction treatment in nitrosylsulfuric acid absorption tower 2 No. two.
The tail gas on No. three nitrosylsulfuric acid absorption towers 3 is discharged from No. three gas vents 32, enter No. four nitrosylsulfuric acid absorption towers 4 from No. four gas feeds 41, and react with the oleum counter current contacting in No. four nitrosylsulfuric acid absorption towers 4, reacted liquid flows to No. three sulfuric acid imports 33 from No. four sulfuric acid outlets 44, enters the interior reaction treatment in nitrosylsulfuric acid absorption tower 3 No. three.
The tail gas on No. four nitrosylsulfuric acid absorption towers 4 is discharged from No. four gas vents 42, enter No. five nitrosylsulfuric acid absorption towers 5 from No. five gas feeds 51, and react with the concentrated sulfuric acid counter current contacting in No. five nitrosylsulfuric acid absorption towers 5, reacted liquid flows to No. four sulfuric acid imports 43 from No. five sulfuric acid outlets 54, enters the interior reaction treatment in nitrosylsulfuric acid absorption tower 4 No. four.
The tail gas on No. five nitrosylsulfuric acid absorption towers 5 is discharged from No. five gas vents 52, enters separator 8 and carries out gas-liquid separation, and liquid is again back in No. five nitrosylsulfuric acid absorption towers 5 and carries out reaction treatment, and gas is discharged in air.Be discharged to airborne gas again after a series of reaction, the content of nitrogen oxide is extremely low, is less than 150ppm, meets national standard.
In addition, it should be noted that, the specific embodiment described in this description, as long as the undeclared concrete shape of its part and size, this part can be any shape and size that adapt with its structure; Meanwhile, the title that part is got also can be different.All equivalence or simple change of doing according to described structure, feature and the principle of the utility model patent design, are included in the protection domain of the utility model patent.
Claims (3)
1. the process units of a tower nitrosylsulfuric acid, it is characterized in that: it comprises five nitrosylsulfuric acid absorption towers that connect successively, nitrosylsulfuric acid absorption tower is provided with sulfuric acid import, sulfuric acid outlet, gas feed, gas vent, a described gas vent is connected with No. two gas feeds, No. two gas vent is connected with No. three gas feeds, No. three gas vent is connected with No. four gas feeds, and No. four gas vent is connected with No. five gas feeds; No. five described sulfuric acid outlets are connected with No. four sulfuric acid imports by circulating pump, No. four sulfuric acid outlets are connected with No. three sulfuric acid imports by circulating pump, No. three sulfuric acid outlets are connected with No. two sulfuric acid imports by circulating pump, No. two sulfuric acid outlets are connected with a sulfuric acid import by circulating pump, and a sulfuric acid outlet is collected mouth by circulating pump and finished product and is connected.
2. the process units of five tower nitrosylsulfuric acids according to claim 1, is characterized in that: No. five described gas outlet ends are provided with separator, and the upper end of separator leads to air, and the lower end of separator is connected with No. five sulfuric acid imports.
3. the process units of a kind of five tower nitrosylsulfuric acids according to claim 1 and 2, is characterized in that: on described circulating pump, be provided with heat exchanger, one end of heat exchanger is connected with circulating pump, and the other end is connected with the upper end on nitrosylsulfuric acid absorption tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420097643.8U CN203764111U (en) | 2014-03-05 | 2014-03-05 | Five-tower nitroso-sulfuric acid production device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420097643.8U CN203764111U (en) | 2014-03-05 | 2014-03-05 | Five-tower nitroso-sulfuric acid production device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203764111U true CN203764111U (en) | 2014-08-13 |
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ID=51281359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420097643.8U Expired - Lifetime CN203764111U (en) | 2014-03-05 | 2014-03-05 | Five-tower nitroso-sulfuric acid production device |
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| CN (1) | CN203764111U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104607025A (en) * | 2014-12-25 | 2015-05-13 | 甘肃银光化学工业集团有限公司 | Device and method for reducing concentration of nitrogen oxide in discharged tail gas of explosive powder production line |
| CN105417509A (en) * | 2015-11-30 | 2016-03-23 | 浙江林江化工股份有限公司 | Preparation method of nitrosyl sulfuric acid and method for separating sulfuric acid and phosphoric acid in industrial waste acid |
| CN105536478A (en) * | 2016-01-16 | 2016-05-04 | 浙江奇彩环境科技股份有限公司 | Resourceful treatment method and system for H acid production tail gas |
-
2014
- 2014-03-05 CN CN201420097643.8U patent/CN203764111U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104607025A (en) * | 2014-12-25 | 2015-05-13 | 甘肃银光化学工业集团有限公司 | Device and method for reducing concentration of nitrogen oxide in discharged tail gas of explosive powder production line |
| CN105417509A (en) * | 2015-11-30 | 2016-03-23 | 浙江林江化工股份有限公司 | Preparation method of nitrosyl sulfuric acid and method for separating sulfuric acid and phosphoric acid in industrial waste acid |
| CN105417509B (en) * | 2015-11-30 | 2017-09-08 | 浙江林江化工股份有限公司 | The separation method of sulfuric acid and phosphoric acid in a kind of preparation of nitrosylsulfuric acid and industrial waste acid |
| CN105536478A (en) * | 2016-01-16 | 2016-05-04 | 浙江奇彩环境科技股份有限公司 | Resourceful treatment method and system for H acid production tail gas |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140813 |
|
| CX01 | Expiry of patent term |