CN220352057U - Natural gas hydrogen production desulfurization mechanism - Google Patents
Natural gas hydrogen production desulfurization mechanism Download PDFInfo
- Publication number
- CN220352057U CN220352057U CN202321661304.3U CN202321661304U CN220352057U CN 220352057 U CN220352057 U CN 220352057U CN 202321661304 U CN202321661304 U CN 202321661304U CN 220352057 U CN220352057 U CN 220352057U
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- CN
- China
- Prior art keywords
- gas
- natural gas
- absorption liquid
- desulfurization
- cylinder body
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 50
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 45
- 230000023556 desulfurization Effects 0.000 title claims abstract description 45
- 239000003345 natural gas Substances 0.000 title claims abstract description 25
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 22
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 22
- 239000001257 hydrogen Substances 0.000 title claims abstract description 22
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 239000007789 gas Substances 0.000 claims abstract description 76
- 238000010521 absorption reaction Methods 0.000 claims abstract description 55
- 239000007788 liquid Substances 0.000 claims abstract description 51
- 238000009826 distribution Methods 0.000 claims abstract description 29
- 238000005507 spraying Methods 0.000 claims abstract description 25
- 238000011084 recovery Methods 0.000 claims abstract description 6
- 230000003009 desulfurizing effect Effects 0.000 claims description 15
- 229910052751 metal Inorganic materials 0.000 claims description 13
- 239000002184 metal Substances 0.000 claims description 13
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 claims description 9
- 229910000037 hydrogen sulfide Inorganic materials 0.000 claims description 9
- 239000007921 spray Substances 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 230000002209 hydrophobic effect Effects 0.000 claims description 4
- 229920000742 Cotton Polymers 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 5
- 239000011148 porous material Substances 0.000 description 11
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 8
- 229910052717 sulfur Inorganic materials 0.000 description 8
- 239000011593 sulfur Substances 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 125000001741 organic sulfur group Chemical group 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 3
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
- Gas Separation By Absorption (AREA)
Abstract
The utility model discloses a natural gas hydrogen production desulfurization mechanism, which comprises a desulfurization tower and an absorption liquid tank, wherein the desulfurization tower comprises an upper cylinder body, a middle cylinder body and a lower cylinder body, the bottom of the middle cylinder body is provided with a raw gas inlet, a gas distribution plate is arranged inside the middle cylinder body above the raw gas inlet, a plurality of layers of baffle plates are axially arranged above the gas distribution plate along the inner wall of the middle cylinder body, a spraying device is arranged between every two baffle plates, a spraying device is arranged above the uppermost baffle plate, a second absorption liquid inlet pipe is connected outside the spraying device, the second absorption liquid inlet pipe is connected with the absorption liquid tank through a liquid pump, a gas collecting plate is arranged above the spraying device, the upper cylinder body is provided with a gas outlet, the gas collecting plate is connected with the gas outlet, and the lower cylinder body is provided with an absorption liquid recovery tank; the natural gas hydrogen production desulfurization mechanism adopts a combination of the spraying device, the baffle plate and the gas distribution plate, effectively improves the contact area and the contact time of the raw gas and the absorption liquid, and has high desulfurization efficiency and good effect.
Description
Technical Field
The utility model relates to the technical field of hydrogen production equipment, in particular to a natural gas hydrogen production desulfurization mechanism.
Background
As energy consumption increases, finding new energy sources has become an important task at present. Hydrogen is used as an energy source with the most development potential nowadays, and has wide sources, almost no pollution, high conversion efficiency and wide application prospect.
The hydrogen preparation process of natural gas mainly comprises four steps: the pretreatment of the raw material gas mainly comprises the steps of desulfurizing the raw material gas, namely, removing organic sulfur and H2S in the raw material gas to be below 0.2PPm through manganese oxide and zinc oxide desulfurizing agents at a certain temperature and under a certain pressure so as to meet the requirements of a steam conversion catalyst on sulfur, wherein the common desulfurizing methods comprise dry desulfurization, wet desulfurization and dry and wet desulfurization, the wet desulfurization mainly comprises spraying, and the spraying desulfurization has the following problems: the raw gas is insufficiently contacted with the absorption liquid, the contact time is short, and organic sulfur and H in the raw gas can be removed only by circulating and desulfurizing for many times 2 S falls below 0.2PPm, the desulfurization efficiency is low, and secondly, residues are easily accumulated on the inner wall of the desulfurization equipment, so that the desulfurization effect is affected.
Disclosure of Invention
In order to overcome the prior problems, the utility model provides the natural gas hydrogen production desulfurization mechanism which can realize continuous desulfurization, has high desulfurization efficiency and good effect.
The technical scheme of the utility model is as follows: the utility model provides a natural gas hydrogen manufacturing desulfurization mechanism, includes desulfurizing tower and absorption cistern, and the desulfurizing tower includes barrel, well barrel and lower barrel, well barrel bottom is equipped with the raw gas air inlet, and raw gas air inlet top is located the inside gas distribution dish that is equipped with of well barrel, and gas distribution dish top is equipped with the multistage baffling board along well barrel inner wall axial, is equipped with a atomizer between two liang of baffling boards, atomizer include water conservancy diversion metal ring and rotatory atomizer, water conservancy diversion metal ring cover is established in well barrel periphery, water conservancy diversion metal ring outside one end is connected with first absorption liquid feed pipe, and first absorption liquid feed pipe passes through the liquid pump and is connected with the absorption cistern, and a plurality of shunt tubes are connected to the water conservancy diversion metal ring inboard, and the shunt tube runs through and gets into in the barrel, and every shunt tube end connection rotatory atomizer, rotatory atomizer is established at well barrel inner wall, and the upper strata board top is provided with spray set, and spray set outer being connected with the second absorption liquid feed pipe, second absorption liquid feed pipe passes through the liquid pump and is connected with the absorption cistern, is equipped with the gas collecting tray above the gas collecting tray, be equipped with the absorption liquid recovery cistern down.
The rotary spray head adopts a 360-degree rotary spray head.
The gas distribution plate comprises a distribution plate, a plurality of axial vent holes are uniformly distributed on the distribution plate, each axial vent hole comprises a main pore canal and at least 2 branch pore canals, the main pore canals are communicated with the lower surface of the distribution plate, and the branch pore canals are communicated with the upper surface of the distribution plate.
The multi-layer baffle plate is three layers.
The baffle plate is an S-shaped baffle plate, so that the upstream sulfur-containing natural gas fully contacts with the absorption liquid and is subjected to chemical reaction on the baffle plate, the contact time of the sulfur-containing natural gas and the absorption liquid is prolonged, and the desulfurization efficiency is improved.
Each layer of baffle plate of the multi-layer baffle plate is correspondingly provided with an access door.
The hydrogen sulfide detector is arranged in the gas collecting tray, a communicating pipe is arranged between the gas outlet and the raw gas inlet, a first electromagnetic valve is arranged at the gas outlet, an air pump is arranged on the communicating pipe, a second electromagnetic valve is arranged at a port where the gas outlet and the communicating pipe are communicated, and the first electromagnetic valve and the second electromagnetic valve are respectively and electrically connected with the hydrogen sulfide detector.
And a moisture absorption device is arranged above the spraying device.
The moisture absorption device adopts moisture absorption cotton.
The whole coating of inner wall surface of desulfurizing tower has hydrophobic oleophobic layer, and hydrophobic oleophobic layer can let the absorption liquid of spraying on the inner wall naturally slide, avoids the residual scale deposit of inner wall, influences desulfurization effect.
The beneficial effects of the utility model are as follows:
1. the utility model adopts a spraying device to enable absorption liquid to be attached on a multi-level baffle plate, then adopts a spraying device to enable the desulfurization tower to be filled with absorption liquid mist, the raw gas is uniformly distributed through a gas distribution plate and slowly enters the desulfurization tower, flows back up through the multi-level baffle plate, the multi-level baffle plate slows down the upward flowing speed of the gas, increases the contact reaction time of the raw gas and the absorption liquid on the baffle plate, and because the absorption liquid is filled in the desulfurization tower in an atomization mode, the full contact of the raw gas and the absorption liquid is realized, and the organic sulfur and H in the raw material natural gas can be desulfurized for a single time under the conditions of full contact of the raw gas and the absorption liquid and prolonged contact time of the upstream raw gas 2 S is removed to be below 0.2PPM, thereby achieving the purpose of high-efficiency desulfurization and having ideal desulfurization effect.
2. The natural gas hydrogen production desulfurization mechanism adopts the combination of the spraying device, the baffle plate and the gas distribution plate, effectively improves the contact area and the contact time of raw gas and absorption liquid, has full contact, can greatly reduce the use of the absorbent and reduces the cost.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic cross-sectional view of a gas distribution plate of the present utility model;
FIG. 3 is a schematic view of a deflector ring of the spray device of the present utility model.
In the figure, 1, a desulfurizing tower; 101. an upper cylinder; 102. a middle cylinder; 103. a lower cylinder; 2. an absorption liquid tank; 3. an air outlet; 4. a raw gas inlet; 5. a gas distribution plate; 501. a main duct; 502. dividing the pore canal; 6. a baffle plate; 7. an access door; 8. a diversion metal ring; 9. rotating the spray head; 10. a shunt; 11. a first absorption liquid inlet pipe; 12. a shower pipe; 13. a nozzle; 14. a second absorption liquid inlet pipe; 15. a liquid pump; 16. a moisture absorption device; 17. a gas collecting disc; 18. a hydrogen sulfide detector; 19. a communicating pipe; 20. a first electromagnetic valve; 21. an air pump; 22. a second electromagnetic valve; 23. an absorption liquid recovery tank; 24. and a liquid outlet.
Detailed Description
The utility model is further illustrated in the following figures and examples.
As shown in fig. 1, a natural gas hydrogen production desulfurization mechanism comprises a desulfurization tower 1 and an absorption liquid tank 2, wherein the desulfurization tower comprises an upper cylinder 101, a middle cylinder 102 and a lower cylinder 103.
The upper cylinder is provided with an air outlet 3.
The bottom of the middle cylinder body is provided with a raw gas inlet 4, a gas distribution plate 5 is arranged in the middle cylinder body above the raw gas inlet, a plurality of layers of baffle plates 6 are axially arranged above the gas distribution plate along the inner wall of the middle cylinder body, a spraying device is arranged between every two baffle plates, a spraying device is arranged above the uppermost layer of baffle plates, a moisture absorption device is arranged above the spraying device, a gas collecting plate is arranged above the moisture absorption device, and the gas collecting plate is connected with the gas outlet.
The gas distribution plate 5 comprises a distribution plate, a plurality of axial vent holes are uniformly distributed on the distribution plate, each axial vent hole comprises a main pore channel 501 and at least 2 branch pore channels 502, the main pore channels are communicated with the lower surface of the distribution plate, the branch pore channels are communicated with the upper surface of the distribution plate, raw gas enters from an air inlet and is influenced by the gas distribution plate, the gas is split by the plurality of main pore channels and is split again by the branch pore channels, and the uniform and slow distribution of the raw gas entering into the cylinder in the desulfurizing tower is realized.
The multi-layer baffle plate is 3 layers, and the baffle plate is an S-shaped baffle plate, so that the upstream sulfur-containing natural gas fully contacts with the absorption liquid and is subjected to chemical reaction on the baffle plate, the contact time of the sulfur-containing natural gas and the absorption liquid is prolonged, and the desulfurization efficiency is improved; each layer of baffle plate is correspondingly provided with an access door 7, and the access door is convenient to overhaul.
The spraying device comprises a diversion metal ring 8 and rotary spraying heads 9, the periphery of the middle cylinder body is sleeved with the diversion metal ring, one end of the outer side of the diversion metal ring is connected with a first absorption liquid inlet pipe 11, the first absorption liquid inlet pipe is connected with an absorption liquid tank through a liquid pump 15, the inner side of the diversion metal ring is connected with a plurality of split pipes 10, the number of the split pipes is 2-6, the split pipes penetrate into the middle cylinder body, the end part of each split pipe is connected with one rotary spraying head, the rotary spraying heads adopt 360-degree rotary spraying heads, and the rotary spraying heads are annularly arranged on the inner wall of the middle cylinder body.
The spraying device comprises a spraying pipe 12 which is arranged in the radial direction, 4-6 nozzles 13 which are arranged on the spraying pipe, and a second absorption liquid inlet pipe 14 which is connected with the absorption liquid groove and is connected with the absorption liquid groove through a liquid pump 15.
The moisture absorbing device 16 uses moisture absorbing cotton for dehumidifying the desulfurized and purified gas.
The hydrogen sulfide detector 18 is arranged in the gas collecting tray 17, the communicating pipe 19 is arranged between the gas outlet and the raw gas inlet, the first electromagnetic valve 20 is arranged at the gas outlet, the air pump 21 is arranged on the communicating pipe, the second electromagnetic valve 22 is arranged at the port where the gas outlet is communicated with the communicating pipe, the first electromagnetic valve and the second electromagnetic valve are respectively and electrically connected with the hydrogen sulfide detector, the raw gas after desulfurization and purification enters the gas collecting tray, the hydrogen sulfide detector detects the sulfur content of the purified gas, if the sulfur content is qualified, the first electromagnetic valve is opened, the gas is discharged from the gas outlet, if the sulfur content is unqualified, the second electromagnetic valve is opened, the gas is pumped into the desulfurizing tower by the air pump for secondary desulfurization, and the structure is simple in arrangement and can effectively improve the desulfurization rate.
The lower cylinder body is provided with an absorption liquid recovery tank, and the bottom of the absorption liquid recovery tank is provided with a liquid outlet.
The whole inner wall surface of the desulfurizing tower is coated with the hydrophobic and oleophobic layer, so that the absorption liquid sprayed on the inner wall can naturally slide down, and the residual scaling of the inner wall is avoided, thereby affecting the desulfurizing effect.
The foregoing description is only of the preferred embodiments of the present utility model, and is not intended to limit the utility model, but any minor modifications, equivalents, and improvements made to the above embodiments according to the technical principles of the present utility model should be included in the scope of the technical solutions of the present utility model.
Claims (10)
1. The utility model provides a natural gas hydrogen manufacturing desulfurization mechanism, its characterized in that includes desulfurizing tower and absorption cistern, and the desulfurizing tower includes barrel, well barrel and lower barrel, well barrel bottom is equipped with the raw gas air inlet, and raw gas air inlet top is located inside being equipped with the gas distribution dish of well barrel, and gas distribution dish top is equipped with multistage baffling board along well barrel inner wall axial, is equipped with a atomizer between two liang of baffling boards, atomizer include water conservancy diversion metal ring and rotatory atomizer, water conservancy diversion metal ring cover is established in well barrel periphery, water conservancy diversion metal ring outside one end is connected with first absorption liquid feed liquor pipe, first absorption liquid feed liquor pipe pass through the liquid pump with the absorption cistern is connected, a plurality of shunt tubes are connected to the water conservancy diversion metal ring inboard, and the shunt tubes runs through and gets into in the barrel, and every shunt tube end connection rotatory atomizer, rotatory atomizer ring is established at well barrel inner wall, and the upper strata baffling board top is provided with spray set, and the second absorption liquid feed liquor pipe passes through with the absorption cistern is connected, is equipped with the gas collecting tray above the atomizer, be equipped with the gas outlet, the barrel is connected with the absorption liquid recovery groove.
2. A natural gas hydrogen production desulfurization mechanism according to claim 1, wherein the rotary spray head employs a 360 degree rotary spray head.
3. A natural gas hydrogen production desulfurization mechanism as in claim 1 wherein said gas distribution plate comprises a distribution plate having a plurality of axial vent holes uniformly distributed thereon, each axial vent hole comprising a main duct and at least 2 branch ducts, the main duct communicating with the lower surface of the distribution plate and the branch ducts communicating with the upper surface of the distribution plate.
4. The desulfurization mechanism for producing hydrogen from natural gas according to claim 1, wherein the multi-layer baffle is three layers.
5. The desulfurization mechanism for producing hydrogen from natural gas according to claim 1, wherein the baffle plate is an S-shaped baffle plate.
6. The desulfurization mechanism for producing hydrogen from natural gas according to claim 1, wherein each layer of baffle plates of the multi-layer baffle plate is correspondingly provided with an access door.
7. The hydrogen production desulfurization mechanism of natural gas according to claim 1, wherein a hydrogen sulfide detector is arranged in the gas collecting tray, a communicating pipe is arranged between the gas outlet and the raw gas inlet, a first electromagnetic valve is arranged on the gas outlet, an air pump is arranged on the communicating pipe, a second electromagnetic valve is arranged at a port where the gas outlet and the communicating pipe are communicated, and the first electromagnetic valve and the second electromagnetic valve are respectively electrically connected with the hydrogen sulfide detector.
8. The mechanism for desulfurizing hydrogen production from natural gas according to claim 1, wherein a moisture absorption device is arranged above the spraying device.
9. A natural gas hydrogen production desulfurization mechanism according to claim 8, wherein said moisture absorbing means is a moisture absorbing cotton.
10. A natural gas hydrogen production desulfurization mechanism according to claim 1, wherein the inner wall surface of the desulfurization tower is entirely coated with a hydrophobic and oleophobic layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321661304.3U CN220352057U (en) | 2023-06-28 | 2023-06-28 | Natural gas hydrogen production desulfurization mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321661304.3U CN220352057U (en) | 2023-06-28 | 2023-06-28 | Natural gas hydrogen production desulfurization mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220352057U true CN220352057U (en) | 2024-01-16 |
Family
ID=89478982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321661304.3U Active CN220352057U (en) | 2023-06-28 | 2023-06-28 | Natural gas hydrogen production desulfurization mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220352057U (en) |
-
2023
- 2023-06-28 CN CN202321661304.3U patent/CN220352057U/en active Active
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