CN219399569U - High-pressure spray absorption tower for hydrogen production pyrolysis gas from methanol - Google Patents
High-pressure spray absorption tower for hydrogen production pyrolysis gas from methanol Download PDFInfo
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- CN219399569U CN219399569U CN202320510830.3U CN202320510830U CN219399569U CN 219399569 U CN219399569 U CN 219399569U CN 202320510830 U CN202320510830 U CN 202320510830U CN 219399569 U CN219399569 U CN 219399569U
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Abstract
The utility model provides a high-pressure spray absorption tower of methyl alcohol hydrogen manufacturing pyrolysis gas, the liquid medicine is prepared jar export and is linked together through spraying inlet tube and spray pump import, spray pump export is linked together through spray water conveyer pipe and spray gun one end, spray gun other end stretches into the tower internal upper portion, spray gun tip in the tower is equipped with the shower nozzle, be equipped with the silk screen mist eliminator in the tower of shower nozzle below, the reflux mouth of tower bottom is linked together with the high-pressure pump through the back flow, the export of high-pressure pump is linked together with a plurality of water mist spray guns through the water mist conveyer pipe, the decurrent water mist shower nozzle of shower nozzle that is linked together is equipped with to water mist spray gun tip in the tower, the drain is opened to tower bottom. The utility model has simple structure, scientific and reasonable design, light weight of the tower body, avoiding the loss of filling, convenient maintenance, reduced pressure loss of the empty tower structure, atomized high-pressure jet water mist, fully contacting the reaction liquid for reaction, greatly improving the reaction efficiency and having good social and economic benefits.
Description
Technical Field
The utility model relates to the technical field of hydrogen preparation, in particular to a high-pressure spray absorption tower for hydrogen production pyrolysis gas from methanol.
Background
The product of hydrogen combustion is water, which is the cleanest energy source in the world. And the resources are rich and sustainable development is realized. The hydrogen has the characteristic of high combustion heat value, which is 3 times of gasoline, 3.9 times of alcohol and 4.5 times of coke. Hydrogen energy is a clean new energy source with great importance. The current main industrial hydrogen production methods are as follows: (1) water electrolysis hydrogen production; (2) reforming methanol to prepare hydrogen; (3) reforming natural gas to produce hydrogen; (4) coal and coke gasification to produce hydrogen, etc.; however, the method has the defects of high energy consumption of the water electrolysis hydrogen production, rare raw materials for the natural gas reforming hydrogen production, and serious pollution of the gasification hydrogen production of coal and coke; only methanol reforming hydrogen production has rich raw materials, mature process, high yield, no pollution and wide application.
The methanol reforming hydrogen production takes methanol and desalted water with convenient sources as raw materials, and the ratio of the methanol to the water is 1:1.5, the mixture enters a raw material liquid storage tank, is preheated by a calculating pump, enters a heat exchanger, is gasified in a gasification tower, is overheated to the reaction temperature by the heat exchanger, enters a converter, and is subjected to conversion reaction to generate H 2 、CO 2 And unreacted methanol, water vapor and the like are firstly subjected to heat exchange and cooling with the raw material liquid, then condensed and separated into water and methanol by a water cooler, the water and the methanol can enter a raw material liquid storage tank, the gas after water cooling and separation enters an absorption tower, and CO is absorbed and separated by propylene carbonate 2 The saturated absorption liquid enters an analysis tower for depressurization and analysis and then is recycled, and finally enters a PSA device for further removing and separating residual CO 2 And CO and other impurities to obtain hydrogen with certain purity requirement. However, the absorption column in the apparatus mostly employs a packed column. The packing tower has the defects of uneven gas-liquid distribution, insufficient contact, low reaction efficiency, heavy weight, high manufacturing cost, serious pressure loss, troublesome cleaning and maintenance, large packing loss and the like, so that the structure and design of the absorption tower can be further improved and innovated, and no disclosure and report is made so far.
Disclosure of Invention
Aiming at the situation, the utility model aims to overcome the defects of the prior art and provide the high-pressure spray absorption tower for the pyrolysis gas of the methanol hydrogen production, which can effectively solve the problems of large weight, high manufacturing cost, low reaction efficiency, uneven gas-liquid distribution, insufficient contact and the like of the absorption tower in the prior methanol reforming hydrogen production equipment.
The utility model solves the technical scheme that the high-pressure spray absorption tower for preparing hydrogen and cracking gas from methanol comprises a tower body, a high-pressure pump and a liquid medicine preparation tank, wherein the tower body is provided with a tower top which is communicated with the tower body, an outlet of the liquid medicine preparation tank is communicated with an inlet of a spray water pump through a spray water inlet pipe, an outlet of the spray water pump is communicated with one end of the spray gun through a spray water conveying pipe, the other end of the spray gun stretches into the upper part in the tower body, a spray nozzle with a downward spray head which is communicated with the end part of the spray gun in the tower body is arranged, a wire mesh demister is arranged in the tower body below the spray nozzle, a reflux port at the bottom of the tower body is communicated with an inlet of the high-pressure pump through a reflux pipe, an outlet of the high-pressure pump is communicated with one ends of a plurality of fine water mist spray guns through a water mist conveying pipe, one ends of the fine water mist spray guns stretch into the tower body, the end parts of the fine water mist spray guns in the tower body are provided with downward fine water mist spray heads which are communicated with each other, and the bottom of the tower body is provided with a drain.
The utility model has simple structure, scientific and reasonable design, light weight of the tower body, avoiding the loss of filling, convenient maintenance, reduced pressure loss of the empty tower structure, atomized high-pressure jet water mist, fully contacting the reaction liquid for reaction, greatly improving the reaction efficiency and having good social and economic benefits.
Drawings
Fig. 1 is a schematic diagram of the structure of the present utility model.
Fig. 2 is a schematic view of a partial cutaway connection of the present utility model.
Description of the embodiments
The following detailed description of specific embodiments of the utility model refers to the accompanying drawings and the detailed description.
The high-pressure spray absorption tower for the hydrogen production and pyrolysis gas of the methanol comprises a tower body, a high-pressure pump and a liquid medicine preparation tank, wherein the tower body 1 is provided with a tower top 3 which is communicated with the high-pressure pump, an outlet of the liquid medicine preparation tank 15 is communicated with an inlet of a spray water pump 10 through a spray water inlet pipe 14, an outlet of the spray water pump 10 is communicated with one end of a spray gun 8 through a spray water conveying pipe 9, the other end of the spray gun 8 extends into the upper part in the tower body 1, a spray nozzle 13 with a downward nozzle which is communicated with the end of the spray gun 8 positioned in the tower body 1 is arranged at the end part of the spray gun 8, a wire mesh demister 11 is arranged in the tower body 1 below the spray nozzle 13, a reflux port at the bottom of the tower body 1 is communicated with an inlet of the high-pressure pump 7 through a reflux pipe 4, one end of the water mist spray guns 5 extends into the tower body 1, one end of the water mist guns 5 is arranged in the tower body 1, the end of the water mist guns 5 is provided with a downward nozzle 12 which is arranged at the end of the water mist spray guns 5 positioned in the tower body 1, and a drain 2 is arranged at the bottom of the tower body 1.
In order to ensure better implementation effect, the number of the water mist spray guns 5 is 2, and the water mist spray heads 12 at the end parts of the water mist spray guns 5 are all positioned in the tower body 1 below the wire mesh demister 11.
The spray water pump 10 is a stainless steel high-pressure plunger pump, and the wire mesh demister 11 is a stainless steel wire mesh demister.
The spray nozzle 13 and the water mist nozzle 12 are stainless steel high-pressure atomization nozzles.
The tower body 1 is cylindrical made of stainless steel, and the water mist conveying pipe 6, the spray water conveying pipe 9 and the spray water inlet pipe 14 are seamless stainless steel pipes.
When the utility model is specifically used, the converted gas generated by the methanol pyrolysis in the hydrogen production by the methanol reforming enters the tower body 1, the liquid medicine preparation tank 15 is used for preparing the absorption liquid propylene carbonate, the liquid medicine preparation tank 15 is connected with the spray water inlet pipe 14, the spray water inlet pipe 14 is connected with the spray water pump 10, the spray water pump 10 is used for conveying the prepared propylene carbonate to the spray gun 8 through the spray water conveying pipe 9, the spray gun 8 is connected with the spray nozzle 13, the spray nozzle 13 is used for spraying the propylene carbonate into the tower body 1, and the absorption liquid propylene carbonate and the converted gas cracked by the methanol are fully mixed and reacted in the tower body 1 to absorb the residual methanol in the converted gas. Along with the increase of propylene carbonate sprayed into the tower, a reflux port at the bottom of the tower body 1 is connected with a high-pressure pump 7 through a reflux pipe 4, the high-pressure pump 7 conveys the absorption liquid propylene carbonate circulated in the tower body 1 to a fine water mist spray gun 5 through a water mist conveying pipe 6, the fine water mist spray gun 5 is connected with a fine water mist spray head 12, and the fine water mist spray head 12 sprays the absorption liquid propylene carbonate into the tower body 1 again. After propylene carbonate circulates for many times, a drain outlet 2 on the tower body 1 is opened, and residual liquid of the absorption liquid which circulates for many times is discharged. A wire mesh demister 11 is arranged in the upper part of the tower body 1, and clean converted gas is sent to a subsequent process section through a pipeline connected with the rear side of the tower top 3 after redundant water mist is removed by the wire mesh demister 11.
Wherein propylene carbonate is an absorbent of carbon dioxide and is dissolved in water. The propylene carbonate absorbs carbon dioxide and is mainly formed by mixing water mist sprayed by a high-pressure pump with the carbon dioxide, and the wire mesh demister 11 can prevent the water mist from escaping in a transitional way. The spray nozzle 13 is arranged above the wire mesh mist eliminator 11, and can flush the wire mesh mist eliminator 11 when needed, so that the absorption reaction is not influenced.
The utility model has simple structure and scientific and reasonable design, the propylene carbonate absorbing liquid is sprayed into the absorption tower in a water mist mode, two layers of atomization spray heads in the absorption tower fully mix and react the converted gas generated by cracking the propylene carbonate absorbing liquid and the methanol, residual methanol in the converted gas is absorbed, the reflux design ensures that the contact is more complete, the gas-liquid distribution is more uniform, the clean converted gas enters the subsequent process after the moisture of the converted gas is removed by a stainless steel wire mesh demister, the stainless steel material ensures that the tower body is not corroded, the hollow tower structure reduces the pressure loss, atomized high-pressure jet water mist ensures that the reaction liquid fully contacts and reacts, the reaction efficiency is greatly improved, the weight of the tower body is light, the filler loss is avoided, the overhaul is convenient, the cost is low, and good social and economic benefits are realized.
Claims (5)
1. The utility model provides a high-pressure spray absorption tower of methyl alcohol hydrogen manufacturing pyrolysis gas, including tower body, high-pressure pump and liquid medicine preparation jar, be equipped with overhead (3) that are linked together above tower body (1), its characterized in that, liquid medicine preparation jar (15) export be linked together through spray inlet tube (14) and spray pump (10) import, spray pump (10) export is linked together through spray water conveyer pipe (9) and spray gun (8) one end, spray gun (8) other end stretches into upper portion in tower body (1), spray gun (8) tip that is located in tower body (1) is equipped with shower nozzle (13) that are linked together, be equipped with silk screen mist eliminator (11) in tower body (1) below shower nozzle (13), the backflow mouth of tower body (1) bottom is linked together through back flow (4) and the import of high-pressure pump (7), the export of high-pressure pump (7) are linked together through spray water conveyer pipe (6) and a plurality of water mist spray gun (5) one end, water mist spray gun (5) one end stretches into in tower body (1), water mist spray gun (1) one end is equipped with water mist spray gun (2) tip that is located in tower body (1) is equipped with water mist spray (2) bottom.
2. The high-pressure spray absorption tower for the hydrogen production pyrolysis gas of the methanol according to claim 1, wherein 2 water mist spray guns (5) are arranged, and water mist spray heads (12) at the end parts of the water mist spray guns (5) are all positioned in the tower body (1) below the wire mesh demister (11).
3. The high-pressure spray absorption tower for the hydrogen production pyrolysis gas by the methanol according to claim 1, wherein the spray water pump (10) is a stainless steel high-pressure plunger pump, and the wire mesh demister (11) is a stainless steel wire mesh demister.
4. The high-pressure spray absorption tower for the hydrogen production pyrolysis gas by the methanol according to claim 1, wherein the spray nozzle (13) and the fine water mist nozzle (12) are stainless steel high-pressure atomization nozzles.
5. The high-pressure spray absorption tower for the hydrogen production pyrolysis gas by the methanol according to claim 1, wherein the tower body (1) is cylindrical made of stainless steel, and the water mist conveying pipe (6), the spray water conveying pipe (9) and the spray water inlet pipe (14) are seamless stainless steel pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320510830.3U CN219399569U (en) | 2023-03-16 | 2023-03-16 | High-pressure spray absorption tower for hydrogen production pyrolysis gas from methanol |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320510830.3U CN219399569U (en) | 2023-03-16 | 2023-03-16 | High-pressure spray absorption tower for hydrogen production pyrolysis gas from methanol |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219399569U true CN219399569U (en) | 2023-07-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320510830.3U Active CN219399569U (en) | 2023-03-16 | 2023-03-16 | High-pressure spray absorption tower for hydrogen production pyrolysis gas from methanol |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219399569U (en) |
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2023
- 2023-03-16 CN CN202320510830.3U patent/CN219399569U/en active Active
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