CN204261536U - A kind of hydrogen chloride synthesis circulation of tail gas absorption system - Google Patents
A kind of hydrogen chloride synthesis circulation of tail gas absorption system Download PDFInfo
- Publication number
- CN204261536U CN204261536U CN201420646090.7U CN201420646090U CN204261536U CN 204261536 U CN204261536 U CN 204261536U CN 201420646090 U CN201420646090 U CN 201420646090U CN 204261536 U CN204261536 U CN 204261536U
- Authority
- CN
- China
- Prior art keywords
- tail gas
- gas absorber
- pipeline
- hydrogen chloride
- water pot
- 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
Links
- 239000007789 gas Substances 0.000 title claims abstract description 80
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 title claims abstract description 39
- 238000010521 absorption reaction Methods 0.000 title claims abstract description 35
- 229910000041 hydrogen chloride Inorganic materials 0.000 title claims abstract description 29
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 title claims abstract description 29
- 230000015572 biosynthetic process Effects 0.000 title claims abstract description 15
- 238000003786 synthesis reaction Methods 0.000 title claims abstract description 15
- 239000006096 absorbing agent Substances 0.000 claims abstract description 48
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 29
- 125000004122 cyclic group Chemical group 0.000 claims abstract description 17
- 238000010612 desalination reaction Methods 0.000 claims abstract description 15
- 230000002093 peripheral effect Effects 0.000 claims abstract description 4
- 230000003020 moisturizing effect Effects 0.000 claims description 3
- 239000002253 acid Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 6
- 239000012530 fluid Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 101100298222 Caenorhabditis elegans pot-1 gene Proteins 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Landscapes
- Gas Separation By Absorption (AREA)
Abstract
The utility model discloses a kind of hydrogen chloride synthesis circulation of tail gas absorption system, comprise the first tail gas absorber installed side by side, second tail gas absorber and the 3rd tail gas absorber, described first tail gas absorber, second tail gas absorber is all connected with heat exchanger by pipeline with the top of the 3rd tail gas absorber, first tail gas absorber, second tail gas absorber is all connected with desalination water pot by pipeline with the lower end of the 3rd tail gas absorber, the lower end of described desalination water pot is connected with cyclic absorption pump by pipeline, cyclic absorption pump is connected with heat exchanger, form peripheral passage, described cyclic absorption pump with the pipeline between heat exchanger absorb water pot by pipeline and three-in-one furnace be connected.Adopt this hydrogen chloride synthesis circulation of tail gas absorption system to greatly reduce exhaust emissions amount, ensure that hydrogen chloride gas does not escape phenomenon, improve surrounding environment to a certain extent.
Description
Technical field
The utility model relates to a kind of hydrogen chloride synthesis circulation of tail gas absorption system, belongs to environmental technology field.
Background technology
Chloride chemicals is the bulk raw material of Chemical Manufacture, products application is extensive, at present in chemical industry for making chlorine and alkali industry, the all supporting hydrogen-chloride synthesis of a lot of enterprise is for the production of hydrochloric acid, but affect by technical merit, the hydrogen chloride tail gas amount do not absorbed is comparatively large, causes tail gas emptying, brings pollution to a certain degree to production environment.For the hydrogen chloride tail gas of this part, the method that each manufacturer comparatively generally adopts absorbs with water, but reclaim hydrochloric acid often concentration is on the low side, do not reach sell and recycling standard, and in absorption process, easily there is the phenomenon escaped in hydrogen chloride gas.
Summary of the invention
The purpose of this utility model is to provide a kind of hydrogen chloride synthesis circulation of tail gas absorption system.Utilize circulating pump that absorption water is delivered to tail gas absorber, cyclic absorption is carried out to hydrogen chloride synthesis tail gas, greatly reduce the discharge capacity of tail gas, and in absorption process, hydrogen chloride gas there will not be and escapes phenomenon.
For achieving the above object, the utility model adopts following technical proposals:
A kind of hydrogen chloride synthesis circulation of tail gas absorption system, comprise the first tail gas absorber, the second tail gas absorber and the 3rd tail gas absorber installed side by side, described first tail gas absorber, the second tail gas absorber are all connected with heat exchanger by pipeline with the top of the 3rd tail gas absorber, first tail gas absorber, the second tail gas absorber are all connected with desalination water pot by pipeline with the lower end of the 3rd tail gas absorber, the lower end of described desalination water pot is connected with cyclic absorption pump by pipeline, cyclic absorption pump is connected with heat exchanger, forms peripheral passage; Described cyclic absorption pump with the pipeline between heat exchanger absorb water pot by pipeline and three-in-one furnace be connected.
Described desalination water pot is provided with the water inlet carrying out continuous moisturizing.
The beneficial effects of the utility model:
Adopt hydrogen chloride synthesis circulation of tail gas absorption system of the present utility model, greatly reduce exhaust emissions amount, ensure that hydrogen chloride gas does not escape phenomenon, improve surrounding environment to a certain extent.Also mitigate the corrosion of condensation acid solution to system facility simultaneously, improve the service life of hydrochloric acid processing apparatus facility.This transformation, does not increase extra diluted acid amount, farthest reduces diluted acid output, improve economic benefit simultaneously.
Accompanying drawing explanation
Fig. 1 is hydrogen chloride synthesis circulation of tail gas absorption system structural representation of the present utility model.
Wherein, 1-desalination water pot, 2-cyclic absorption pump, 3-heat exchanger, 4-first tail gas absorber, 5-second tail gas absorber, 6-the 3rd tail gas absorber, 7-three-in-one furnace absorbs water pot.
Detailed description of the invention
The present invention is further illustrated in conjunction with the embodiments, should be noted that following explanation is only to explain the present invention, not limiting its content.
Embodiment 1
As shown in Figure 1, a kind of hydrogen chloride synthesis circulation of tail gas absorption system, comprise the first tail gas absorber 4 installed side by side, second tail gas absorber 5 and the 3rd tail gas absorber 6, described first tail gas absorber 4, second tail gas absorber 5 is all connected with heat exchanger 3 by pipeline with the top of the 3rd tail gas absorber 6, first tail gas absorber 4, second tail gas absorber 5 is all connected with desalination water pot 1 by pipeline with the lower end of the 3rd tail gas absorber 6, the lower end of described desalination water pot 1 is connected with cyclic absorption pump 2 by pipeline, cyclic absorption pump 2 is connected with heat exchanger 3, form peripheral passage, described cyclic absorption pump 2 with the pipeline between heat exchanger 3 absorb water pot 7 by pipeline and three-in-one furnace be connected, desalination water pot is provided with the water inlet carrying out continuous moisturizing, makes the acid solution in desalination water pot remain low concentration.
The utility model, mainly for the hydrogen chloride gas produced in hydrogen chloride synthetic furnace, generates concentrated hydrochloric acid, the part hydrogen chloride tail gas be not then completely absorbed after watery hydrochloric acid absorbs, and adopts desalted water to carry out cyclic absorption.
The process of cyclic absorption is: first the desalted water in desalination water pot is delivered to the first tail gas absorber respectively through cyclic absorption pump, in second tail gas absorber and the 3rd tail gas absorber, absorbing hydrogen chloride tail gas, form low concentration acid solution (mass concentration is below 8%), then using this low concentration acid solution as circulation fluid, heat exchange is carried out through graphite heat exchanger, after temperature is down to about 20 DEG C by 40 DEG C, be delivered to the first tail gas absorber again, in second tail gas absorber and the 3rd tail gas absorber, hydrogen chloride tail gas is absorbed, to the acid solution of the part low concentration of hydrogen chloride tail gas be absorbed by 2m
3the speed of/h is delivered to three-in-one furnace continuously and absorbs water pot, then in desalination water pot, constantly supplements desalted water, makes it to remain low concentration acid solution.
Because circulation fluid is the process of heat release in the process of absorbing hydrogen chloride tail gas, therefore adopts heat exchanger to lower the temperature to circulation fluid, improve the effect of tail gas absorption.
Adopt hydrogen chloride synthesis circulation of tail gas absorption system of the present utility model, after cyclic absorption, tail gas can pass through the direct emptying of pipeline at the top of tail gas absorber, and in prior art, by the hydrogen chloride gas also containing part in the tail gas of the top emptying of tail gas absorber, easily form condensation acid solution in the exit of blow-down pipe, drop on surrounding devices, cause the corrosion of equipment.
By reference to the accompanying drawings detailed description of the invention of the present utility model is described although above-mentioned; but the restriction not to the utility model protection domain; one of ordinary skill in the art should be understood that; on the basis of the technical solution of the utility model, those skilled in the art do not need to pay various amendment or distortion that creative work can make still within protection domain of the present utility model.
Claims (2)
1. a hydrogen chloride synthesis circulation of tail gas absorption system, it is characterized in that, comprise the first tail gas absorber, the second tail gas absorber and the 3rd tail gas absorber installed side by side, described first tail gas absorber, the second tail gas absorber are all connected with heat exchanger by pipeline with the top of the 3rd tail gas absorber, first tail gas absorber, the second tail gas absorber are all connected with desalination water pot by pipeline with the lower end of the 3rd tail gas absorber, the lower end of described desalination water pot is connected with cyclic absorption pump by pipeline, cyclic absorption pump is connected with heat exchanger, forms peripheral passage; Described cyclic absorption pump with the pipeline between heat exchanger absorb water pot by pipeline and three-in-one furnace be connected.
2. a kind of hydrogen chloride synthesis circulation of tail gas absorption system as claimed in claim 1, it is characterized in that, described desalination water pot is provided with the water inlet carrying out continuous moisturizing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420646090.7U CN204261536U (en) | 2014-10-31 | 2014-10-31 | A kind of hydrogen chloride synthesis circulation of tail gas absorption system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420646090.7U CN204261536U (en) | 2014-10-31 | 2014-10-31 | A kind of hydrogen chloride synthesis circulation of tail gas absorption system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204261536U true CN204261536U (en) | 2015-04-15 |
Family
ID=52796436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420646090.7U Expired - Lifetime CN204261536U (en) | 2014-10-31 | 2014-10-31 | A kind of hydrogen chloride synthesis circulation of tail gas absorption system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204261536U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110294458A (en) * | 2019-06-04 | 2019-10-01 | 利尔化学股份有限公司 | A kind of method and apparatus that alkyl dichloride phosphine synthesis by-product hydrogen chloride purifies online |
| CN113398720A (en) * | 2021-07-20 | 2021-09-17 | 四川永祥股份有限公司 | Absorption tower and system for producing electronic-grade hydrochloric acid by utilizing hydrochloric acid resolution |
-
2014
- 2014-10-31 CN CN201420646090.7U patent/CN204261536U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110294458A (en) * | 2019-06-04 | 2019-10-01 | 利尔化学股份有限公司 | A kind of method and apparatus that alkyl dichloride phosphine synthesis by-product hydrogen chloride purifies online |
| CN113398720A (en) * | 2021-07-20 | 2021-09-17 | 四川永祥股份有限公司 | Absorption tower and system for producing electronic-grade hydrochloric acid by utilizing hydrochloric acid resolution |
| CN113398720B (en) * | 2021-07-20 | 2023-03-17 | 四川永祥股份有限公司 | Absorption tower and system for producing electronic-grade hydrochloric acid by utilizing hydrochloric acid resolution |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |