CN219032092U - Air compression nitrogen reverse-discharge oxygen-rich gas efficient utilization and pyrolysis system - Google Patents
Air compression nitrogen reverse-discharge oxygen-rich gas efficient utilization and pyrolysis system Download PDFInfo
- Publication number
- CN219032092U CN219032092U CN202320150646.2U CN202320150646U CN219032092U CN 219032092 U CN219032092 U CN 219032092U CN 202320150646 U CN202320150646 U CN 202320150646U CN 219032092 U CN219032092 U CN 219032092U
- Authority
- CN
- China
- Prior art keywords
- oxygen
- air
- enriched
- gas
- pyrolysis
- 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.)
- Active
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Abstract
The utility model provides an air compression nitrogen reverse-discharge oxygen-enriched gas high-efficiency utilization and pyrolysis system, which comprises a pyrolysis furnace, an oxygen-enriched gas buffer tank and an air compression nitrogen reverse-discharge oxygen-enriched gas system, wherein an air inlet pipeline is arranged at the outer side of the pyrolysis furnace and is communicated with a furnace cavity of the pyrolysis furnace; the oxygen-enriched air buffer tank is communicated with the air inlet pipeline, and oxygen-enriched air in the oxygen-enriched air buffer tank flows to the air inlet pipeline through the oxygen-enriched air blower; the air-compression nitrogen reverse-discharge oxygen-enriched gas system is communicated with the oxygen-enriched gas buffer tank, and stores oxygen-enriched gas into the oxygen-enriched gas buffer tank. The utility model takes the air-compressed nitrogen reverse-discharge oxygen-enriched gas as a coal pyrolysis oxygen-enriched heat source, and the oxygen-enriched gas and air are proportioned to realize oxygen-enriched pyrolysis, thereby reducing nitrogen content and improving effective components of coal gas.
Description
Technical Field
The utility model relates to the technical field of oxygen-enriched gas pyrolysis, in particular to an air compression nitrogen reverse-discharge oxygen-enriched gas efficient utilization and pyrolysis system.
Background
The traditional process coal pyrolysis is the most mature in internal combustion internal heat type upright square furnace, for example, chinese patent application publication No. CN216550293U discloses an upright square furnace gas heat carrier pyrolysis system, which comprises a pyrolysis furnace, a waste heat recovery mechanism, a pretreatment device and a hydrogen extracting device, wherein the pyrolysis furnace is provided with a gas collecting umbrella, a preheating section, a pyrolysis section and a cooling section, a hot gas outlet of the heating furnace stretches into the pyrolysis section, the pretreatment device is connected with the hydrogen extracting device, desorption gas heats gas after hydrogen extraction to serve as a heat carrier, purified gas is heated by the heating furnace and then is conveyed to the pyrolysis section to carry out coal pyrolysis, and the gas heated by the heating furnace serves as a pyrolysis heat source of the square furnace to realize coal pyrolysis. In the patent document, although the coal gas is selected as a heat carrier to pyrolyze the coal, the nitrogen content can be reduced, but the post-treatment process of the waste heat recovery mechanism for recovering the coal gas is complex and complicated, and the recovery cost is high.
In addition, the existing coal pyrolysis including the above patent documents, the waste gas generated by direct combustion of the gas in the internal combustion internal heating type upright square furnace is mixed with the pyrolysis gas, and the nitrogen content in the pyrolysis gas is also high. The high nitrogen content in the pyrolysis gas directly leads to low effective components in the pyrolysis gas, and the air combustion-supporting heat efficiency is low.
Therefore, how to increase the oxygen content and decrease the nitrogen content in the combustion air is a urgent problem to be solved.
Disclosure of Invention
The utility model provides an air-compression nitrogen reverse-discharge oxygen-enriched gas high-efficiency utilization and pyrolysis system, which takes air-compression nitrogen reverse-discharge oxygen-enriched gas as a coal pyrolysis oxygen-enriched heat source, and realizes oxygen-enriched pyrolysis by mixing the oxygen-enriched gas with air, so that the nitrogen content is reduced, and the effective components of coal gas are improved.
The technical scheme for realizing the purpose of the utility model is as follows:
an air compression nitrogen reverse-release oxygen-rich efficient utilization and pyrolysis system, comprising:
the pyrolysis furnace is used for pyrolyzing coal, an air inlet pipeline is arranged at the outer side of the pyrolysis furnace, and the air inlet pipeline is communicated with a furnace cavity of the pyrolysis furnace;
the oxygen-enriched air buffer tank is used for storing oxygen-enriched air, the oxygen-enriched air buffer tank is communicated with the air inlet pipeline, and the oxygen-enriched air in the oxygen-enriched air buffer tank flows to the air inlet pipeline through the oxygen-enriched air blower;
the air-compression nitrogen reverse-discharge oxygen-enriched gas system is communicated with the oxygen-enriched gas buffer tank and stores oxygen-enriched gas into the oxygen-enriched gas buffer tank.
The utility model takes the air-compressed nitrogen reverse-discharge oxygen-enriched gas as a coal pyrolysis oxygen-enriched heat source, and the oxygen-enriched gas and air are proportioned to realize oxygen-enriched pyrolysis, thereby reducing nitrogen content and improving effective components of coal gas.
In one possible implementation, a fuel gas pipeline is further arranged on the outer side of the pyrolysis furnace;
the fuel gas pipe is communicated with the air inlet pipe.
According to the embodiment of the utility model, after fuel gas (gas and/or desorption gas are selected as fuel gas) is mixed, the mixed fuel gas is used as a coal pyrolysis oxygen-enriched heat source, and the air compression nitrogen is diluted by the gas or the desorption gas to reversely release the oxygen-enriched gas, so that the combustion-supporting efficiency of the gas or the desorption gas is improved.
In one possible implementation manner, an air pipeline and an air blower are further arranged on the outer side of the pyrolysis furnace;
the air blower is communicated with an air pipeline, and the air pipeline is communicated with an air inlet pipeline.
The utility model dilutes the rich oxygen by reversely releasing the mixed air in the rich oxygen to the air to press nitrogen, improves the combustion efficiency and reduces the use amount of the rich oxygen to a certain extent.
In one possible implementation, a gas mixer is installed at the inlet of the gas inlet duct;
the oxygen-enriched gas buffer tank and the air pipeline are both communicated with the gas mixer;
the gas mixer is in communication with the gas inlet conduit.
The utility model adopts the gas mixer to mix the oxygen-enriched gas and the air as the fuel gas of the pyrolysis furnace, the oxygen-enriched gas and the air enter the air inlet pipeline after being mixed by the gas mixer, and the mixed gas of the oxygen-enriched gas and the air is mixed with the fuel gas, thereby being beneficial to the combustion of the fuel gas (the fuel gas is selected from coal gas and/or desorption gas).
In one possible implementation, an oxygen-rich blower is mounted on the oxygen-rich pipe between the oxygen-rich buffer tank and the gas mixer.
The utility model adopts the oxygen-enriched gas blower to increase the oxygen-enriched pressure and the efficiency of feeding the oxygen-enriched gas in the oxygen-enriched gas buffer tank into the gas mixer.
In one possible implementation manner, the air compression nitrogen reverse-discharging oxygen-enriched gas system comprises: an air compressor for compressing air, a filter for filtering air, at least one adsorption tower for extracting nitrogen from air;
the air compressor is connected with the filter, and the filter is connected with the adsorption tower;
the top end of the adsorption tower is communicated with a nitrogen pipeline, the bottom end of the adsorption tower is communicated with a reverse deflation pipeline, and the reverse deflation pipeline is communicated with the oxygen-enriched buffer tank.
The utility model adopts an air compressor to compress air, the compressed air flowing out of the air compressor enters an adsorption tower after entering a filter for filtration treatment, nitrogen in the compressed air is pressure-swing-adsorbed by the adsorption tower, the nitrogen flows into a nitrogen pipeline from the top end of the adsorption tower, oxygen-enriched gas in the adsorption tower enters a reverse air release pipeline from the bottom end of the adsorption tower, and the oxygen-enriched gas flows into an oxygen-enriched buffer tank from the reverse air release pipeline. The utility model utilizes the air-compressed nitrogen to reversely discharge the oxygen-enriched gas to improve the oxygen content in the fuel gas and improve the combustion efficiency.
Compared with the prior art, the utility model has the beneficial effects that:
the utility model takes the air-compressed nitrogen reverse-discharge oxygen-enriched gas as a coal pyrolysis oxygen-enriched heat source, and the oxygen-enriched gas and air are proportioned to realize oxygen-enriched pyrolysis, thereby reducing nitrogen content and improving effective components of coal gas.
Drawings
FIG. 1 is a schematic block diagram of an air compression nitrogen reverse-discharge oxygen-enriched high-efficiency utilization and pyrolysis system provided by the utility model;
in the figure, a 1-pyrolysis furnace; 2-an oxygen-enriched buffer tank; 3-an oxygen-enriched air blower; 4-an air inlet pipeline; 5-a fuel gas pipeline; 6-an air duct; 7-an air blower; 8-a gas mixer; 9-an oxygen-rich gas line; 10-a compressor; 11-a filter; 12-an adsorption tower; 13-nitrogen piping; 14-a reverse air discharge pipeline; 15-compressed air line.
Detailed Description
The present utility model will be described in detail below with reference to the embodiments shown in the drawings, but it should be understood that the embodiments are not limited to the present utility model, and functional, method, or structural equivalents and alternatives according to the embodiments are within the scope of protection of the present utility model by those skilled in the art.
The pressure swing adsorption air compression nitrogen is a novel air adsorption separation technology, and the principle is to separate gas mixtures by utilizing the difference of adsorption performance of molecular sieves on different gas molecules. The adsorption separation method is that any adsorption is carried out on the same adsorbed gas, and the lower the temperature is, the higher the pressure is, and the larger the adsorption amount is under the condition of adsorption balance. Conversely, the higher the temperature, the lower the pressure, and the smaller the adsorption amount. Pressure swing adsorption is the adsorption and desorption by varying the pressure. More specifically, the pressure swing adsorption air compression nitrogen is prepared by taking air as a raw material, and separating nitrogen in the air by utilizing the selective adsorption performance of a high-efficiency and high-selectivity solid adsorbent on nitrogen.
According to the embodiment of the utility model, the reverse gassing of the pressure swing adsorption air-compression nitrogen-compression system in the air-compression nitrogen reverse-gassing oxygen-enriched gas system is recycled, the content of the reverse gassing oxygen is up to 75%, the reverse gassing oxygen is used as the oxygen-enriched gas of the combustion air of coal pyrolysis, the oxygen-enriched pyrolysis is realized through the proportion control of the combustion-supporting gas, and the problems of low combustion-supporting efficiency of gas and low content of effective components of gas are solved.
Referring to fig. 1, an embodiment of the present utility model provides a high-efficiency utilization and pyrolysis system for air compression nitrogen reverse-discharge oxygen-enriched gas, which includes: the device comprises a pyrolysis furnace 1 for pyrolyzing coal, an oxygen-enriched buffer tank 2 for storing oxygen-enriched gas and an air compression nitrogen reverse-discharge oxygen-enriched gas system, wherein an air inlet pipeline 4 is arranged on the outer side of the pyrolysis furnace 1, and the air inlet pipeline 4 is communicated with a furnace cavity of the pyrolysis furnace 1; the oxygen-enriched gas buffer tank 2 is communicated with the air inlet pipeline 4, and oxygen-enriched gas in the oxygen-enriched gas buffer tank 2 flows to the air inlet pipeline 4 through the oxygen-enriched gas blower 3; the air-compression nitrogen reverse-discharge oxygen-enriched gas system is communicated with the oxygen-enriched gas buffer tank 2, and stores oxygen-enriched gas into the oxygen-enriched gas buffer tank 2.
According to the embodiment of the utility model, the air-compressed nitrogen reverse-discharge oxygen-enriched gas is used as a coal pyrolysis oxygen-enriched heat source, the oxygen-enriched pyrolysis is realized by the ratio of the oxygen-enriched gas to the air, the nitrogen content is reduced, and the effective components of the coal gas are improved.
With continued reference to fig. 1, the pyrolysis furnace 1 according to the embodiment of the present utility model is further provided with a fuel gas pipe 5 at the outer side; the fuel gas pipe 5 communicates with the intake pipe 4.
According to the embodiment of the utility model, after fuel gas (gas and/or desorption gas are selected as fuel gas) is mixed, the mixed fuel gas is used as a coal pyrolysis oxygen-enriched heat source, and the air compression nitrogen is diluted by the gas or the desorption gas to reversely release the oxygen-enriched gas, so that the combustion-supporting efficiency of the gas or the desorption gas is improved.
With continued reference to fig. 1, an air duct 6 and an air blower 7 are further disposed on the outer side of the pyrolysis furnace 1 according to the embodiment of the present utility model; the air blower 7 is communicated with the air pipeline 6, and the air pipeline 6 is communicated with the air inlet pipeline 4.
According to the embodiment of the utility model, the oxygen-enriched gas is diluted by reversely releasing the mixed air in the oxygen-enriched gas into the air-compressed nitrogen, so that the combustion efficiency is improved, and the use amount of the oxygen-enriched gas is reduced to a certain extent.
With continued reference to fig. 1, a gas mixer 8 is installed at the inlet of the gas inlet pipe 4 according to the embodiment of the present utility model; the oxygen-enriched gas buffer tank 2 and the air pipeline 6 are both communicated with the gas mixer 8; the gas mixer 8 communicates with the intake duct 4.
According to the embodiment of the utility model, the gas mixer 8 is adopted to mix oxygen-enriched gas and air as combustion-supporting gas of the pyrolysis furnace 1, the oxygen-enriched gas and the air enter the air inlet pipeline 4 after being mixed by the gas mixer 8, and the mixed gas of the oxygen-enriched gas and the air is mixed with fuel gas, so that the combustion of the fuel gas (the fuel gas is selected from coal gas and/or desorption gas) is facilitated.
With continued reference to fig. 1, an oxygen-enriched blower 3 is installed on an oxygen-enriched gas pipeline 9 between the oxygen-enriched buffer tank 2 and the gas mixer 8 according to an embodiment of the present utility model.
In the embodiment of the utility model, the oxygen-enriched air blower 3 is adopted to improve the oxygen-enriched pressure and the efficiency of feeding the oxygen-enriched air in the oxygen-enriched air buffer tank 2 into the air mixer 8.
With continued reference to fig. 1, an air compression nitrogen reverse-discharge oxygen-enriched gas system according to an embodiment of the present utility model includes: an air compressor 10 for compressing air, a filter 11 for filtering air, at least one adsorption tower 12 for extracting nitrogen from air; the air compressor 10 is connected with a filter 11, and the filter 11 is connected with an adsorption tower 12; the top end of the adsorption tower 12 is communicated with a nitrogen pipeline 13, the bottom end of the adsorption tower 12 is communicated with a reverse deflation pipeline 14, and the reverse deflation pipeline 14 is communicated with the oxygen-enriched buffer tank 2.
In the embodiment of the utility model, the air compressor 10 is adopted to compress air, the compressed air flowing out of the air compressor 10 enters the adsorption tower 12 after being filtered by the filter 11, nitrogen in the compressed air is pressure-swing-adsorbed by the adsorption tower 12, the nitrogen flows into the nitrogen pipeline 13 from the top end of the adsorption tower 12, oxygen-enriched gas in the adsorption tower 12 enters the reverse air discharge pipeline 14 from the bottom end of the adsorption tower 12, and flows into the oxygen-enriched gas buffer tank 2 from the reverse air discharge pipeline 14. The embodiment of the utility model utilizes the air-compressed nitrogen reverse-discharge oxygen-enriched gas to improve the oxygen content in the fuel gas and improve the combustion efficiency.
The above list of detailed descriptions is only specific to practical embodiments of the present utility model, and they are not intended to limit the scope of the present utility model, and all equivalent embodiments or modifications that do not depart from the spirit of the present utility model should be included in the scope of the present utility model.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (6)
1. An air compression nitrogen reverse-discharge oxygen-rich high-efficiency utilization and pyrolysis system, which is characterized by comprising:
the coal pyrolysis furnace comprises a pyrolysis furnace (1) for pyrolyzing coal, wherein an air inlet pipeline (4) is arranged at the outer side of the pyrolysis furnace (1), and the air inlet pipeline (4) is communicated with a furnace cavity of the pyrolysis furnace (1);
an oxygen-enriched gas buffer tank (2) for storing oxygen-enriched gas, wherein the oxygen-enriched gas buffer tank (2) is communicated with an air inlet pipeline (4), and the oxygen-enriched gas in the oxygen-enriched gas buffer tank (2) flows to the air inlet pipeline (4) through an oxygen-enriched gas fan (3);
the air-compression nitrogen reverse-discharge oxygen-enriched gas system is communicated with the oxygen-enriched gas buffer tank (2), and stores oxygen-enriched gas into the oxygen-enriched gas buffer tank (2).
2. The air-compression nitrogen reverse-discharge oxygen-rich high-efficiency utilization and pyrolysis system according to claim 1, wherein a fuel gas pipeline (5) is further arranged on the outer side of the pyrolysis furnace (1);
the fuel gas pipe (5) is communicated with the air inlet pipe (4).
3. The air compression nitrogen reverse-discharge oxygen-enriched high-efficiency utilization and pyrolysis system according to claim 1 or 2 is characterized in that an air pipeline (6) and an air blower (7) are further arranged on the outer side of the pyrolysis furnace (1);
the air blower (7) is communicated with the air pipeline (6), and the air pipeline (6) is communicated with the air inlet pipeline (4).
4. The air-compression nitrogen reverse-discharge oxygen-enriched high-efficiency utilization and pyrolysis system according to claim 3, wherein a gas mixer (8) is arranged at the inlet of the air inlet pipeline (4);
the oxygen-enriched buffer tank (2) and the air pipeline (6) are communicated with the gas mixer (8);
the gas mixer (8) is communicated with the gas inlet pipeline (4).
5. The air-compression nitrogen reverse-discharge oxygen-enriched high-efficiency utilization and pyrolysis system according to claim 4, wherein an oxygen-enriched blower (3) is installed on an oxygen-enriched gas pipeline (9) between the oxygen-enriched buffer tank (2) and the gas mixer (8).
6. The air-compression nitrogen reverse-discharge oxygen-enriched gas efficient utilization and pyrolysis system according to claim 1, wherein the air-compression nitrogen reverse-discharge oxygen-enriched gas system comprises: an air compressor (10) for compressing air, a filter (11) for filtering air, at least one adsorption tower (12) for extracting nitrogen from air;
the air compressor (10) is connected with the filter (11), and the filter (11) is connected with the adsorption tower (12);
the top end of the adsorption tower (12) is communicated with a nitrogen pipeline (13), the bottom end of the adsorption tower (12) is communicated with a reverse deflation pipeline (14), and the reverse deflation pipeline (14) is communicated with the oxygen-enriched buffer tank (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320150646.2U CN219032092U (en) | 2023-01-31 | 2023-01-31 | Air compression nitrogen reverse-discharge oxygen-rich gas efficient utilization and pyrolysis system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320150646.2U CN219032092U (en) | 2023-01-31 | 2023-01-31 | Air compression nitrogen reverse-discharge oxygen-rich gas efficient utilization and pyrolysis system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219032092U true CN219032092U (en) | 2023-05-16 |
Family
ID=86273384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320150646.2U Active CN219032092U (en) | 2023-01-31 | 2023-01-31 | Air compression nitrogen reverse-discharge oxygen-rich gas efficient utilization and pyrolysis system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219032092U (en) |
-
2023
- 2023-01-31 CN CN202320150646.2U patent/CN219032092U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101323799A (en) | Coke oven gas dry cleaning temperature swing adsorption process | |
| CN1318210A (en) | Electrical current generation system | |
| CN112374458A (en) | Method and device for producing hydrogen from blast furnace gas in iron-making | |
| CN102391898A (en) | Method for separating and purifying carbon dioxide in marsh gas by adopting pressure swing adsorption | |
| CN219032092U (en) | Air compression nitrogen reverse-discharge oxygen-rich gas efficient utilization and pyrolysis system | |
| CN205730788U (en) | A kind of cement kiln tail smoke carbon dioxide upgrading system | |
| CN213538040U (en) | Energy-saving protective gas circulation system of galvanizing continuous annealing furnace | |
| CN113983849A (en) | Concurrent heating formula electric fan heater based on steel enterprise waste heat recovery utilizes technique | |
| CN103320193B (en) | Device and method for manufacturing high quality natural gas by purifying methane | |
| CN100513961C (en) | Hot wind oxygen-enriched sintering equipment and method thereof | |
| CN204848791U (en) | A two -stage separation membrane system for marsh gas is handled | |
| CN116123548A (en) | Low-energy-consumption concentration oxidation device suitable for middle-low concentration VOC waste gas | |
| CN215404564U (en) | Hydrogen preparation and purification device | |
| CN111961509B (en) | Biogas membrane purification system and method | |
| CN104944370B (en) | Device for producing hydrogen from tail gas produced by MOCVD (metal-organic chemical vapor deposition) | |
| CN204873823U (en) | Coke oven gas system liquefied natural gas's rich hydrogen tail gas processing apparatus | |
| CN203639436U (en) | Biomass gas deoxidation complete device | |
| CN108079736A (en) | A kind of flashed vapour purification-recovery system | |
| CN205933804U (en) | Biogas anaerobic fermentation and purification system | |
| CN113028844A (en) | Blast furnace hot blast stove flue gas waste heat recovery device and recovery method | |
| CN202390202U (en) | Device for supplying oxidant with stable flow and purity to oxygen-enriched combustion supporting of kiln | |
| CN201251345Y (en) | Air deep-cooling nitrogen-making oxygen-enriched tail gas recovery device | |
| CN207056232U (en) | A kind of air cleaning unit | |
| CN2747371Y (en) | Oil and gas recovery device of char absorbing and ultralow temperature condensation combined method | |
| CN111471500A (en) | System and process method for purifying methane by single-stage membrane separation method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |