CN219848534U - Hydrogen peroxide solution production oxidation tail gas recycling device - Google Patents
Hydrogen peroxide solution production oxidation tail gas recycling device Download PDFInfo
- Publication number
- CN219848534U CN219848534U CN202321145562.6U CN202321145562U CN219848534U CN 219848534 U CN219848534 U CN 219848534U CN 202321145562 U CN202321145562 U CN 202321145562U CN 219848534 U CN219848534 U CN 219848534U
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- CN
- China
- Prior art keywords
- aromatic hydrocarbon
- tank
- tail gas
- acid recovery
- hydrogen peroxide
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- 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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- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 title claims abstract description 44
- 239000007789 gas Substances 0.000 title claims abstract description 32
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- 238000004064 recycling Methods 0.000 title claims abstract description 14
- 230000003647 oxidation Effects 0.000 title claims description 15
- 238000007254 oxidation reaction Methods 0.000 title claims description 15
- 150000004945 aromatic hydrocarbons Chemical class 0.000 claims abstract description 52
- 238000011084 recovery Methods 0.000 claims abstract description 51
- 239000002253 acid Substances 0.000 claims abstract description 34
- 239000010865 sewage Substances 0.000 claims abstract description 19
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000000926 separation method Methods 0.000 claims abstract description 8
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 6
- 238000000746 purification Methods 0.000 claims abstract description 5
- 239000011521 glass Substances 0.000 claims description 6
- 239000002904 solvent Substances 0.000 abstract description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052799 carbon Inorganic materials 0.000 abstract description 3
- 230000000630 rising effect Effects 0.000 abstract description 3
- 125000003118 aryl group Chemical group 0.000 description 6
- 239000007788 liquid Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000012071 phase Substances 0.000 description 3
- 239000003513 alkali Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
Abstract
The utility model discloses a recycling device for oxidized tail gas in hydrogen peroxide production, which comprises an acid recovery tank, wherein an inlet of the acid recovery tank is respectively connected with an oxidized tail gas condensate receiving tank, a first aromatic hydrocarbon separation tank, a second aromatic hydrocarbon separation tank and an aromatic hydrocarbon metering tank of a tail gas unit, the middle part of the acid recovery tank is connected with an aromatic hydrocarbon filter through an aromatic hydrocarbon recovery pump, the aromatic hydrocarbon filter is connected with a purification tower, a nitrogen seal valve and a breather valve are arranged at the top of the acid recovery tank, and the bottom of the acid recovery tank is connected with a sewage tank; the utility model can be applied to recycling and reusing the aromatic hydrocarbon solvent carried by the oxidized tail gas in the hydrogen peroxide production, can reduce the total carbon content of the hydrogen peroxide product while reducing the aromatic hydrocarbon consumption, and can avoid the rising of the content of the raffinate hydrogen peroxide.
Description
Technical Field
The utility model relates to the field of chemical industry, in particular to a recycling device for oxidized tail gas in hydrogen peroxide production.
Background
In the reaction of producing the oxidation tower by hydrogen peroxide, oxygen in the air is partially reacted, a small amount of residual oxygen and nitrogen which cannot participate in the oxygen are largely discharged from the top of the oxidation tower, and the partial gas is called oxidation tail gas. The oxidized tail gas is discharged to the atmosphere after being treated by an oxidized tail gas condenser, an expander and a tail gas unit, and a large amount of aromatic hydrocarbon solvent can be condensed or desorbed in the treatment process. The partially condensed aromatic hydrocarbon is generally discharged to an oxidation liquid storage tank or a recovery tank, and the partially condensed aromatic hydrocarbon contains a certain amount of moisture, and after the partially condensed aromatic hydrocarbon is added into the oxidation liquid storage tank, the extraction effect of the extraction tower is affected to a certain extent, so that the hydrogen peroxide content of the raffinate at the top of the tower is increased. The rising of the content of the raffinate hydrogen peroxide can lead to the increase of the safety risk of the post-treatment process, and can lead to the safety accident of the system with alkali in the alkali tower load at the same time, and the increase of the raw material consumption at the same time.
If a certain measure is adopted to recycle the solvent recovered from the oxidized tail gas, the production cost can be reduced, the safety of the device can be improved to a certain extent, and the operating environment of the device can be improved.
Disclosure of Invention
The utility model aims to overcome the defects and provide a recycling device for oxidized tail gas in hydrogen peroxide production, which can recycle aromatic hydrocarbon solvent carried by the oxidized tail gas.
The utility model aims to solve the technical problems, and adopts the technical scheme that: the utility model provides a hydrogen peroxide solution production oxidation tail gas recycling device, includes the acid recovery jar, the import of acid recovery jar is connected with oxidation tail gas condensate liquid receiving tank, first aromatic hydrocarbon knockout drum, second aromatic hydrocarbon knockout drum, tail gas unit aromatic hydrocarbon metering tank respectively, and the acid recovery jar middle part is connected with aromatic hydrocarbon filter through aromatic hydrocarbon recovery pump, and the purifying column is connected to aromatic hydrocarbon filter, is equipped with nitrogen seal valve and breather valve at acid recovery jar top, and the sewage pond is connected to acid recovery jar bottom.
Preferably, a sewage self-regulating valve is arranged on a connecting pipeline of the acid recovery tank and the sewage pool.
Preferably, a sight glass is arranged on a connecting pipeline of the acid recovery tank and the sewage pool.
Preferably, an aromatic hydrocarbon recovery valve is arranged on a connecting pipeline of the acid recovery tank and the aromatic hydrocarbon recovery pump.
The utility model has the beneficial effects that:
1. realizing aromatic hydrocarbon recycling, and reducing aromatic hydrocarbon consumption by 0.3kg/t hydrogen peroxide;
2. reducing the total carbon of the hydrogen peroxide product by more than 20 ppm;
3. reducing the influence of the solvent discharge system on the content of the raffinate hydrogen peroxide, and reducing the content of the raffinate hydrogen peroxide by 0.03g/L;
4. the solvent recovery and cleaning frequency is reduced, the steam consumption, the electricity consumption, the pure water consumption and the sewage treatment capacity of the cleaning operation of the preparation kettle are reduced, and the operation environment is improved.
Drawings
FIG. 1 is a schematic structural view of a bulk warehouse stacker-reclaimer kit;
in the figure, an acid recovery tank 1, an aromatic recovery pump 2, an aromatic filter 3, a purification tower 4, an oxidized tail gas condensate receiving tank 5, a first aromatic separation tank 6, a second aromatic separation tank 7, a tail gas unit aromatic metering tank 8, a nitrogen seal valve 9, a breather valve 10, a pollution discharge self-regulating valve 11, a sight glass 12 and an aromatic recovery valve 13.
Detailed Description
The utility model is described in further detail below with reference to the drawings and the specific examples.
As shown in fig. 1, an oxidation tail gas recycling device for hydrogen peroxide production comprises an acid recovery tank 1, wherein an inlet of the acid recovery tank 1 is respectively connected with an oxidation tail gas condensate receiving tank 5, a first aromatic hydrocarbon separation tank 6, a second aromatic hydrocarbon separation tank 7 and a tail gas unit aromatic hydrocarbon metering tank 8, the middle part of the acid recovery tank 1 is connected with an aromatic hydrocarbon filter 3 through an aromatic hydrocarbon recovery pump 2, the aromatic hydrocarbon filter 3 is connected with a purifying tower 4, a nitrogen seal valve 9 and a breather valve 10 are arranged at the top of the acid recovery tank 1, and the bottom of the acid recovery tank 1 is connected with a sewage pool.
Preferably, a self-regulating sewage valve 11 is arranged on a connecting pipeline of the acid recovery tank 1 and the sewage pool, and the flow is regulated through the self-regulating sewage valve 11.
Preferably, a sight glass 12 is arranged on a connecting pipeline of the acid recovery tank 1 and the sewage pool, and whether the water phase is normal or not can be observed through the sewage sight glass 12.
Preferably, an aromatic hydrocarbon recovery valve 13 is provided on a connecting pipe between the acid recovery tank 1 and the aromatic hydrocarbon recovery pump 2, and the flow rate is regulated by the aromatic hydrocarbon recovery valve 13.
The working principle of the embodiment is as follows: the liquid phase recovered by the oxidation tail gas condensate liquid receiving tank 5, the first aromatic hydrocarbon separating tank 6, the second aromatic hydrocarbon separating tank 7 and the tail gas unit aromatic hydrocarbon metering tank 8 is discharged into the acid recovery tank 1, the recovered aqueous aromatic hydrocarbon solvent is statically layered in the acid recovery tank, the bottom water phase is continuously discharged to the sewage pool through the sewage self-adjusting device 11, the interface of the acid recovery tank is controlled to be in a certain range, and whether the water phase is normal or not can be observed through the sewage sight glass 12. And opening an aromatic hydrocarbon recovery valve 13 at the middle part of the acid recovery tank, introducing an aromatic hydrocarbon recovery pump 2, filtering impurities possibly carried by an upper solvent through an aromatic hydrocarbon filter 3 by the pump, and then supplementing the impurities into an aromatic hydrocarbon overhead tank of the purification tower, wherein the aromatic hydrocarbon of the aromatic hydrocarbon overhead tank is continuously supplemented into the purification tower 4 through self-regulating control flow.
The utility model can be applied to recycling and reusing the aromatic hydrocarbon solvent carried by the oxidized tail gas in the hydrogen peroxide production, can reduce the total carbon content of the hydrogen peroxide product while reducing the aromatic hydrocarbon consumption, and can avoid the rising of the content of the raffinate hydrogen peroxide.
The above embodiments are merely preferred embodiments of the present utility model, and should not be construed as limiting the present utility model, and the embodiments and features of the embodiments of the present utility model may be arbitrarily combined with each other without collision. The protection scope of the present utility model is defined by the claims, and the protection scope includes equivalent alternatives to the technical features of the claims. I.e., equivalent replacement modifications within the scope of this utility model are also within the scope of the utility model.
Claims (4)
1. The utility model provides a hydrogen peroxide solution production oxidation tail gas recycling device, includes acid recovery jar (1), its characterized in that: the inlet of the acid recovery tank (1) is connected with an oxidation tail gas condensate receiving tank (5), a first aromatic hydrocarbon separation tank (6), a second aromatic hydrocarbon separation tank (7) and a tail gas unit aromatic hydrocarbon metering tank (8) respectively, the middle part of the acid recovery tank (1) is connected with an aromatic hydrocarbon filter (3) through an aromatic hydrocarbon recovery pump (2), the aromatic hydrocarbon filter (3) is connected with a purification tower (4), a nitrogen seal valve (9) and a breather valve (10) are arranged at the top of the acid recovery tank (1), and the bottom of the acid recovery tank (1) is connected with a sewage pool.
2. The device for recycling oxidized tail gas generated in hydrogen peroxide production according to claim 1, wherein the device comprises: a sewage self-regulating valve (11) is arranged on a connecting pipeline between the acid recovery tank (1) and the sewage pool.
3. The hydrogen peroxide production oxidation tail gas recycling device according to claim 1 or 2, characterized in that: a sight glass (12) is arranged on a connecting pipeline between the acid recovery tank (1) and the sewage pool.
4. The device for recycling oxidized tail gas generated in hydrogen peroxide production according to claim 1, wherein the device comprises: an aromatic hydrocarbon recovery valve (13) is arranged on a connecting pipeline of the acid recovery tank (1) and the aromatic hydrocarbon recovery pump (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321145562.6U CN219848534U (en) | 2023-05-12 | 2023-05-12 | Hydrogen peroxide solution production oxidation tail gas recycling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321145562.6U CN219848534U (en) | 2023-05-12 | 2023-05-12 | Hydrogen peroxide solution production oxidation tail gas recycling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219848534U true CN219848534U (en) | 2023-10-20 |
Family
ID=88343936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321145562.6U Active CN219848534U (en) | 2023-05-12 | 2023-05-12 | Hydrogen peroxide solution production oxidation tail gas recycling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219848534U (en) |
-
2023
- 2023-05-12 CN CN202321145562.6U patent/CN219848534U/en active Active
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