CN220405220U - Methane hydrogen sulfide removing device - Google Patents
Methane hydrogen sulfide removing device Download PDFInfo
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- CN220405220U CN220405220U CN202321882456.6U CN202321882456U CN220405220U CN 220405220 U CN220405220 U CN 220405220U CN 202321882456 U CN202321882456 U CN 202321882456U CN 220405220 U CN220405220 U CN 220405220U
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- CN
- China
- Prior art keywords
- pipe
- hydrogen sulfide
- waste liquid
- liquid
- desulfurizing 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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- YQCIWBXEVYWRCW-UHFFFAOYSA-N methane;sulfane Chemical compound C.S YQCIWBXEVYWRCW-UHFFFAOYSA-N 0.000 title claims abstract description 7
- 239000007788 liquid Substances 0.000 claims abstract description 81
- 230000003009 desulfurizing effect Effects 0.000 claims abstract description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 36
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 claims abstract description 24
- 229910000037 hydrogen sulfide Inorganic materials 0.000 claims abstract description 24
- 238000006477 desulfuration reaction Methods 0.000 claims abstract description 23
- 230000023556 desulfurization Effects 0.000 claims abstract description 23
- 238000006243 chemical reaction Methods 0.000 claims abstract description 22
- 239000007921 spray Substances 0.000 claims abstract description 21
- 239000007789 gas Substances 0.000 claims abstract description 18
- 244000005700 microbiome Species 0.000 claims abstract description 7
- 239000002699 waste material Substances 0.000 claims description 37
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 32
- 238000012856 packing Methods 0.000 claims description 6
- 239000003673 groundwater Substances 0.000 claims description 4
- 239000012716 precipitator Substances 0.000 claims description 4
- 238000010030 laminating Methods 0.000 claims description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract description 21
- 229910052717 sulfur Inorganic materials 0.000 abstract description 14
- 239000011593 sulfur Substances 0.000 abstract description 14
- 239000007791 liquid phase Substances 0.000 abstract description 9
- 241000894006 Bacteria Species 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 6
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 abstract description 5
- 239000002245 particle Substances 0.000 abstract description 5
- 238000001556 precipitation Methods 0.000 abstract description 5
- 206010057249 Phagocytosis Diseases 0.000 abstract description 2
- 239000000126 substance Substances 0.000 description 13
- 239000001301 oxygen Substances 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 238000005192 partition Methods 0.000 description 5
- 239000002002 slurry Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- -1 sulfur ions Chemical class 0.000 description 4
- 239000000945 filler Substances 0.000 description 3
- 239000002028 Biomass Substances 0.000 description 2
- 239000013043 chemical agent Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- TXKMVPPZCYKFAC-UHFFFAOYSA-N disulfur monoxide Inorganic materials O=S=S TXKMVPPZCYKFAC-UHFFFAOYSA-N 0.000 description 1
- SZVJSHCCFOBDDC-UHFFFAOYSA-N ferrosoferric oxide Chemical compound O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000006213 oxygenation reaction Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical compound S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
Abstract
The utility model relates to the technical field of biogas desulfurization treatment, in particular to a biogas hydrogen sulfide removal device which comprises a filter, wherein one side of the filter is connected with biogas inlet air, the other side of the filter is connected with an air inlet pipe, and the filter comprises a filter body and a gas inlet pipeOne end of the air inlet pipe is connected with an air inlet, the air inlet is fixed on the outer wall of the desulfurizing tower, a water inlet is fixed on the upper part of the outer wall of the desulfurizing tower, one end of the water inlet is connected with a spray pipe, and the improved methane hydrogen sulfide removing device is provided with an H-shaped reaction tank containing microorganism thiophage bacteria 2 S is absorbed and converted into elemental sulfur or sulfate by the sulfur-phagocytosis bacteria so as to enter a liquid phase to remove hydrogen sulfide, the method is safer and more reliable, and circulating liquid containing elemental sulfur is repeatedly precipitated by a precipitation tank, so that elemental sulfur generated by the sulfur-phagostimulation bacteria is separated from the circulating liquid by a precipitation process, and the sulfur-phagostimulation bacteria generates sulfur with smaller precipitation particle size and is brought into a tower in time by a small amount, so that a desulfurizing tower and other equipment cannot be blocked.
Description
Technical Field
The utility model relates to the technical field of biogas desulfurization treatment, in particular to a biogas hydrogen sulfide removal device.
Background
At present, three types of biogas desulfurization modes exist: the first is dry chemical desulfurization, which adopts ferroferric oxide to oxidize and convert hydrogen sulfide in methane into elemental sulfur or sulfur oxide and convert gaseous hydrogen sulfide into solid or liquid sulfur-containing substances so as to remove the hydrogen sulfide; the second is wet chemical desulfurization, which adopts countercurrent movement of alkaline liquid and methane to absorb hydrogen sulfide in the methane, so that hydrogen sulfide in the weather enters a liquid phase, and then the hydrogen sulfide in the liquid phase is converted into more stable sulfur simple substance or sulfate by a chemical oxidant and a catalyst, thereby removing the hydrogen sulfide in the methane; and thirdly, biological desulfurization, namely, passing the biogas through a reaction tower area with suitable growth of sulfur-phagocytes, wherein the hydrogen sulfide sulfur-phagocytes in the biogas are absorbed and converted into elemental sulfur or sulfate so as to enter a liquid phase to remove hydrogen sulfide.
In the known desulfurization mode, more chemical agents are consumed in the chemical desulfurization operation, and waste liquid and waste residue of chemical substances are generated and the operation cost is higher; since the sulfur-phagocyting bacteria adopted by the existing biological desulfurization needs to survive under the micro-oxygen condition, the operation of the existing biological desulfurization system needs to supplement a certain amount of oxygen into the biogas, which leads to the purification of the biogas containing the unutilized oxygen and the entrained nitrogen (the operation cost of supplementing pure oxygen is too high), and if the biogas is used for preparing the biomass gas, the improvement of the methane content in the biomass gas is adversely affected; the elemental sulfur produced by biological desulfurization has larger particle size, and the microbial reaction is carried out in a desulfurization tower, so that the reaction tower is easy to be blocked, the maintenance cost is increased, and the stability of a desulfurization system is influenced.
The prior patent (publication number: CN 214862513U) discloses a device for removing hydrogen sulfide in biogas by biogas slurry, which comprises a desulfurizing tower, wherein the lower part of the desulfurizing tower is provided with an air inlet for introducing the biogas and air, the top of the desulfurizing tower is provided with an air outlet, a plurality of filler layers for attaching desulfurization microorganisms are arranged in the desulfurizing tower along the height direction, a spraying device is arranged above the filler layers, the bottom of the desulfurizing tower is provided with a biogas slurry storage device, the biogas slurry storage device is connected to the spraying device through a biogas slurry circulation pipeline, and a circulating pump is arranged on the biogas slurry circulation pipeline. The device for removing the hydrogen sulfide in the biogas by using the circulating liquid can realize biological desulfurization of the biogas, reduce the running cost and improve the running stability. The inventors found that the following problems exist in the prior art in the process of implementing the present utility model: 1. the existing design needs to use a biological desulfurization mode of adding oxygen, so that purified methane contains unreacted oxygen and entrained nitrogen, and has certain potential safety hazard; 2. the absorption and reaction of the hydrogen sulfide are both in the desulfurizing tower, and the sulfur-phagocytizing bacteria generate elemental sulfur with larger particle size, so that the desulfurizing tower and other equipment are easy to be blocked, and the maintenance cost is increased.
Disclosure of Invention
The utility model aims to provide a methane hydrogen sulfide removal device to solve the problems that an oxygenation and desulfurization mode is unsafe and the particle size of sulfur elementary substance generated by desulfurization is large in the background art. In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a marsh gas hydrogen sulfide remove device, includes the filter, one side of filter is connected with marsh gas and admits air, the opposite side of filter is connected with the intake pipe, the one end of intake pipe is connected with the air inlet, the air inlet is fixed in the outer wall of desulfurizing tower, the outer wall upper portion of desulfurizing tower is equipped with and is fixed with the water inlet, the shower is connected to the one end of water inlet, the other end of water inlet is connected with first inlet tube, the one end of first inlet tube is connected with the water pump, the one end of water pump is connected with groundwater water inlet, the top of desulfurizing tower is fixed with the gas outlet, the inner wall of gas outlet is connected with the outlet duct, the bottom of desulfurizing tower is fixed with the liquid outlet, the one end of liquid outlet is connected with the reaction tank, top one side of reaction tank is connected with the circulating pipe, the outer wall middle part of circulating pipe is connected with the pump, the one end of circulating pipe is connected with the shunt, the shunt is connected with the one end of heat exchanger through the circulating pipe, the inner wall of heat exchanger has the defroster, the bottom of heat exchanger is connected with the water pump through laminating with the sedimentation tank, one side is connected with the waste liquid pump through the drain pipe, the waste liquid is connected with the waste liquid pump through the drain pipe.
Further preferably, the inner wall of the desulfurizing tower is attached with a packing layer, the bottom of the packing layer is connected with a partition plate, the bottom of the partition plate is provided with a liquid return plate in parallel, and one end of the liquid return plate is connected with one end of a liquid return pipe.
Further preferably, one end of the spray pipe is connected with a water separator, the other end of the spray pipe is fixed with a ring, and the bottom of the spray pipe is connected with a plurality of spray nozzles.
Further preferably, one end of the air outlet pipe is connected with an air valve.
Further preferably, the waste liquid collecting port is connected to the surface of the waste liquid pipe, and the waste liquid pipe is connected with the waste liquid pool through a liquid drawing pump.
Further preferably, the microorganism in the reaction tank is a thiophage.
Compared with the prior art, the utility model has the beneficial effects that:
in the utility model, the spray liquid in the desulfurizing tower is in countercurrent contact with the marsh gas to absorb the hydrogen sulfide in the marsh gas, and the gas-phase hydrogen sulfide is absorbed into the liquid phase and enters the reaction tank through the pipeline, so that the removal of the hydrogen sulfide in the marsh gas is realized, and the method is safer and more reliable because other gases are not added.
In the utility model, a reaction tank containing microorganism thiophage is arranged, sulfur ions in a liquid phase are absorbed and converted into elemental sulfur or sulfate by the thiophage and enter the circulating liquid, and the conversion reaction of the sulfur ions is not carried out in the desulfurizing tower, so that the probability of tower blockage is reduced. Meanwhile, the conversion of the sulfur ions is carried out by microorganisms without adding other chemical agents, so that the running cost is reduced.
According to the utility model, through the design of the sedimentation tank, the circulating liquid containing the sulfur simple substance is repeatedly and circularly precipitated, so that the simple substance sulfur is separated from the circulating liquid, and the complete removal of sulfur ions is achieved. The sulfur elementary substance content in the circulating liquid can be greatly reduced due to the removal of the sulfur elementary substance by precipitation, and the sulfur elementary substance particle size generated by the sulfur-phagocytizing bacteria is smaller, so that a desulfurization tower and other equipment cannot be blocked, and the stability of the desulfurization equipment is greatly improved.
Drawings
FIG. 1 is a schematic elevational view of the present utility model;
FIG. 2 is a schematic view of a partial enlarged structure of the desulfurizing tower of the present utility model;
fig. 3 is a schematic view of a partially enlarged structure of the shower pipe of the present utility model.
In the figure: 1. a filter; 2. methane is introduced; 3. an air inlet pipe; 4. an air inlet; 5. a desulfurizing tower; 501. a filler layer; 502. a partition plate; 503. a liquid return plate; 6. a water inlet; 601. a shower pipe; 602. a water separator; 603. a fixing ring; 604. a spray nozzle; 7. a first water inlet pipe; 8. a water pump; 9. groundwater inflow; 10. an air outlet; 11. an air outlet pipe; 1101. an air valve; 12. a liquid outlet; 1201. a liquid outlet pipe; 13. a reaction tank; 14. a liquid pump; 15. a liquid return pipe; 16. a shunt; 17. a circulation pipe; 18. a heat exchanger; 1801. a desulfurizing demister; 19. a precipitator; 20. a waste liquid pipe; 21. a waste liquid collecting port; 22. a waste liquid pool; 23. effluent of the waste liquid; 24. and a second water inlet pipe.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which are obtained by a worker of ordinary skill in the art without creative efforts, are within the protection scope of the present utility model based on the embodiments of the present utility model.
Referring to fig. 1 to 3, the present utility model provides a technical solution: the methane hydrogen sulfide removing device comprises a filter 1, one side of the filter 1 is connected with methane gas inlet 2, the other side of the filter 1 is connected with a gas inlet 3, one end of the gas inlet 3 is connected with a gas inlet 4, the gas inlet 4 is fixed on the outer wall of a desulfurizing tower 5, a water suction pump 14 is arranged at the upper part of the outer wall of the desulfurizing tower 5, one end of the water inlet 6 is connected with a spray pipe 601, the other end of the water inlet 6 is connected with a first water inlet pipe 7, one end of the first water inlet pipe 7 is connected with a water pump 8, one end of the water pump 8 is connected with groundwater water inlet 9, the top of the desulfurizing tower 5 is fixed with a gas outlet 10, the inner wall of the gas outlet 10 is connected with a gas outlet 11, the bottom of the desulfurizing tower 5 is fixed with a liquid outlet 12, one end of the liquid outlet 12 is connected with a liquid outlet 1201, one end of the liquid outlet 1201 is connected with a reaction tank 13, one side of the top of the reaction tank 13 is connected with a circulating pipe 17, the middle part of the outer wall of the circulating pipe 17 is connected with a liquid extracting pump 14, one end of the flow divider 16 is connected with one end of a heat exchanger 18 through the circulating pipe 17, the inner wall of the heat exchanger 18 is jointed with a demister 1801, the bottom of the heat exchanger 18 is connected with a waste liquid collector 19 through 17 and a liquid outlet 19, one side of the flow divider 16 is connected with a waste liquid 20 through a liquid outlet 20, and a waste liquid 20 is connected with a waste liquid tank 20 through a waste liquid 20.
In this embodiment, as shown in fig. 1 and 2, a packing layer 501 is attached to the inner wall of the desulfurizing tower 5, a partition plate 502 is connected to the bottom of the packing layer 501, a liquid return plate 503 is parallel arranged at the bottom of the partition plate 502, one end of the liquid return plate 503 is connected to one end of the liquid return pipe 15, and this structure can make H in biogas 2 The S molecules follow the spray liquid to flow into the bottom of the desulfurizing tower 5.
In the present embodiment, as shown in FIG. 3One end of the spray pipe 601 is connected with a water separator 602, the other end of the spray pipe 601 is fixed with a ring 603, the bottom of the spray pipe 601 is connected with a plurality of spray nozzles 604, and the structure can enable H in marsh gas 2 S is blocked by the spray water film to be melted, so that the S is separated from the biogas.
In this embodiment, as shown in fig. 1 and 2, one end of the air outlet pipe 11 is connected with an air valve 1101, and this structure can ensure that the biogas flowing out of the air outlet pipe 11 is safely controlled.
In this embodiment, as shown in fig. 1, the waste liquid collecting port 21 is connected to the surface of the waste liquid pipe 20, and the waste liquid pipe 20 is connected to the waste liquid pool 22 through the liquid pump 14, so that the waste liquid at the bottom of the reaction pool 13 can be pumped into the waste liquid pool 22 by the liquid pump 14.
In this embodiment, as shown in FIG. 1, the microorganism in the reaction tank 13 is a thiophage, and the structure can make H in biogas 2 S is absorbed and converted into elemental sulfur or sulfate by sulfur-phagocytosis bacteria and enters into liquid phase to reach H 2 And (5) removing S.
The application method and the advantages of the utility model are as follows: the methane hydrogen sulfide removing device has the following working process when in use:
as shown in fig. 1, 2 and 3, firstly, the biogas introduced into the biogas digester is filtered by a filter 1 and then enters a desulfurizing tower 5, a water film is sprayed out by a spray pipe 601 at the top of the inner wall of the desulfurizing tower 5, and H in the biogas 2 S gas is dissolved in water after encountering a water film to become molecules or ions in liquid phase, H 2 S is transferred from gas phase to liquid phase, and H is removed by flowing into the bottom of the desulfurizing tower 5 along with the spray liquid 2 S methane is discharged out of the desulfurizing tower 5 through the air outlet 10 and can be safely used, and H is contained 2 S spray solution in H 2 S concentration difference is pushed to diffuse into the reaction tank 13, is absorbed and absorbed by sulfur-phagocytes in the reaction tank 13, is converted into elemental sulfur, is discharged out of the sulfur-phagocytes and enters the circulating liquid, the circulating liquid carrying the elemental sulfur is subjected to precipitation treatment by a specially designed precipitator 19, and finally is discharged into the waste liquid tank 22 in the form of sulfur waste liquid, so that H is finally removed 2 The purpose of the S component.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (6)
1. The methane hydrogen sulfide removing device comprises a filter (1), and is characterized in that: one side of filter (1) is connected with marsh gas and admits air (2), the opposite side of filter (1) is connected with intake pipe (3), the one end of intake pipe (3) is connected with air inlet (4), air inlet (4) are fixed in the outer wall of desulfurizing tower (5), the outer wall upper portion of desulfurizing tower (5) is equipped with and is fixed with water inlet (6), shower (601) are connected to the one end of water inlet (6), the other end of water inlet (6) is connected with first inlet tube (7), the one end of first inlet tube (7) is connected with water pump (8), the one end of water pump (8) is connected with groundwater water inlet (9), the top of desulfurizing tower (5) is fixed with gas outlet (10), the inner wall of gas outlet (10) is connected with outlet duct (11), the bottom of desulfurizing tower (5) is fixed with liquid outlet (12), the one end of liquid outlet (12) is connected with drain pipe (1201), the one end of drain pipe (6) is connected with reaction tank (13), one side of top of reaction tank (13) is connected with first inlet tube (7), one end of circulating pipe (17) is connected with circulating pump (17), the utility model discloses a desulfurization demister, including desulfurization demister, waste liquid pond (22) one side is connected through second inlet tube (24) between water pump (8) and reaction tank (13), shunt (16) are connected with one end of heat exchanger (18) through circulating pipe (17), the inner wall laminating of heat exchanger (18) has desulfurization demister (1801), the bottom of heat exchanger (18) is connected with between precipitator (19) through circulating pipe (17), top one side of shunt (16) is connected with between desulfurizing tower (5) through return liquid pipe (15), the bottom of precipitator (19) is connected with waste liquid pipe (20), one end of waste liquid pipe (20) is connected with waste liquid pond (22) through drawing liquid pump (14), one side of waste liquid pond (22) is connected with waste liquid collection mouth (21) through waste liquid pipe (20).
2. The biogas hydrogen sulfide removal device according to claim 1, wherein: the inner wall laminating of desulfurizing tower (5) has packing layer (501), the bottom of packing layer (501) is connected with baffle (502), the bottom parallel of baffle (502) is equipped with back liquid board (503), and the one end of back liquid board (503) is connected with the one end of back liquid pipe (15).
3. The biogas hydrogen sulfide removal device according to claim 1, wherein: one end of the spray pipe (601) is connected with a water separator (602), the other end of the spray pipe (601) is fixed with a ring (603), and the bottom of the spray pipe (601) is connected with a plurality of spray nozzles (604).
4. The biogas hydrogen sulfide removal device according to claim 1, wherein: one end of the air outlet pipe (11) is connected with an air valve (1101).
5. The biogas hydrogen sulfide removal device according to claim 1, wherein: the waste liquid collecting port (21) is connected to the surface of the waste liquid pipe (20), and the waste liquid pipe (20) is connected with the waste liquid pool (22) through the liquid drawing pump (14).
6. The biogas hydrogen sulfide removal device according to claim 1, wherein: the microorganism in the reaction tank (13) is a thiophage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321882456.6U CN220405220U (en) | 2023-07-18 | 2023-07-18 | Methane hydrogen sulfide removing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321882456.6U CN220405220U (en) | 2023-07-18 | 2023-07-18 | Methane hydrogen sulfide removing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220405220U true CN220405220U (en) | 2024-01-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321882456.6U Active CN220405220U (en) | 2023-07-18 | 2023-07-18 | Methane hydrogen sulfide removing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220405220U (en) |
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- 2023-07-18 CN CN202321882456.6U patent/CN220405220U/en active Active
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