CN215949595U - Comprehensive utilization, energy saving and emission reduction device for hydrogenolysis and inspiration - Google Patents
Comprehensive utilization, energy saving and emission reduction device for hydrogenolysis and inspiration Download PDFInfo
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- CN215949595U CN215949595U CN202122230271.4U CN202122230271U CN215949595U CN 215949595 U CN215949595 U CN 215949595U CN 202122230271 U CN202122230271 U CN 202122230271U CN 215949595 U CN215949595 U CN 215949595U
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Abstract
The application discloses a comprehensive utilization and energy-saving emission-reducing device for hydrogenolysis inspiration gas, and relates to the technical field of energy conservation and emission reduction in coal chemical industry. The system comprises a coal pyrolysis device, a coal gas compressor, a hydrogen production device, a gas boiler and a steam conversion device; pyrolysis gas generated by the pyrolysis device enters the gas compressor; the gas compressor is used for increasing the pressure of the pyrolysis gas to form increased pyrolysis gas, and the increased pyrolysis gas enters the hydrogen production device; the hydrogen production device separates the pressurized pyrolysis gas to generate hydrogen and desorbed gas, and the desorbed gas partially enters the gas-fired boiler and serves as fuel; the gas boiler is heated to produce high-temperature high-pressure steam; the steam conversion device converts the high-temperature high-pressure steam into medium-pressure steam, and the medium-pressure steam drives the coal gas compressor to work through the steam turbine. The device of the utility model can reduce energy consumption and improve energy conversion efficiency.
Description
Technical Field
The application relates to the technical field of coal chemical industry energy conservation and emission reduction 5, in particular to a comprehensive utilization and energy conservation and emission reduction device for hydrogenolysis inspiration gas.
Background
In the process of quality-based clean and efficient utilization of coal, the improvement of energy utilization rate and conversion efficiency is urgent. At present, the heat value of the byproduct desorbed gas after hydrogen extraction from coal gas is relatively low, and the gas flow is large, so how to efficiently utilize the byproduct desorbed gas is the key point of energy conservation and consumption reduction. Meanwhile, in chemical production, a large compressor has high power, is generally driven by a motor, and has high power consumption. Therefore, in order to reduce energy consumption, it is necessary to provide a device that can effectively utilize the byproduct desorbed gas, reduce the motor drive energy conversion loss, improve the energy conversion efficiency, and achieve the purpose of reducing energy consumption.
SUMMERY OF THE UTILITY MODEL
The embodiment of the application solves the problem of low utilization efficiency of the desorbed gas as a byproduct of the hydrogen production device in the prior art by providing the comprehensive utilization of the hydrogen production gas, the energy conservation and the consumption reduction, and the utilization rate of resources is improved.
The embodiment of the utility model provides a comprehensive utilization and energy-saving emission-reducing device for hydrogenolysis inhalation, which comprises a coal pyrolysis device, a coal gas compressor, a hydrogen production device, a gas boiler and a steam conversion device;
pyrolysis gas generated by the pyrolysis device enters the gas compressor;
the gas compressor is used for increasing the pressure of the pyrolysis gas to form increased pyrolysis gas, and the increased pyrolysis gas enters the hydrogen production device;
the hydrogen production device separates the pressurized pyrolysis gas to generate hydrogen and desorbed gas, and the desorbed gas partially enters the gas-fired boiler and serves as fuel;
the gas boiler is heated to produce high-temperature high-pressure steam;
the steam conversion device converts the high-temperature high-pressure steam into medium-pressure steam, and the medium-pressure steam drives the coal gas compressor to work through the steam turbine.
Still further, the steam reformer comprises a temperature and pressure reducing device;
high-temperature high-pressure steam generated by the gas boiler enters the temperature and pressure reduction device, deoxygenated water is injected into the temperature and pressure reduction device, the high-temperature high-pressure steam is converted into medium-pressure steam, and the medium-pressure steam drives the gas compressor to work through a steam turbine.
Still further, the steam reforming unit includes a steam turbine generator;
and after the steam turbine generator utilizes the high-temperature high-pressure steam to do work for power generation, medium-pressure steam is output by air extraction, and the medium-pressure steam drives the coal gas compressor to work through the steam turbine.
Furthermore, the high-temperature and high-pressure steam generated in the gas-fired boiler is transmitted to the steam reforming device through a steam main pipe, and a fifth valve is arranged on the steam main pipe.
Furthermore, the temperature and pressure reducing device is communicated with the steam main pipe through a first branch pipe, and a first valve is arranged on the first branch pipe.
Furthermore, a third valve is arranged on a pipeline of the temperature and pressure reducing device communicated with the gas compressor.
Furthermore, the steam turbine generator is communicated with the steam main pipe through a second branch pipe, and a second valve is arranged on the second branch pipe.
Furthermore, a fourth valve is arranged on a pipeline of the steam turbine generator communicated with the gas compressor.
One or more technical solutions provided in the embodiments of the present invention have at least the following technical effects or advantages:
according to the comprehensive utilization, energy saving and emission reduction device for the hydrogenolysis inspiration gas, the pyrolysis gas generated in the pyrolysis device is boosted through the gas compressor, the boosted pyrolysis gas is used as the raw material of the hydrogen production device to be decomposed, and further surplus desorption gas is generated, the surplus desorption gas is used as fuel through the newly added gas boiler, and further high-temperature and high-pressure steam is generated, and then the high-temperature and high-pressure steam is converted into medium-pressure steam through the steam conversion device, and the medium-pressure steam is used as the driving raw material of the gas compressor. By adopting the hydrogen production desorption gas comprehensive utilization and energy-saving emission-reduction device, the problem that the utilization efficiency of the byproduct desorption gas of the hydrogen production device in the prior art is low by 5 is effectively solved, energy conservation and consumption reduction are realized, and the utilization rate of resources is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic flow diagram of a hydrogen production desorption gas comprehensive utilization and energy saving and emission reduction device provided in the embodiment of the application.
Icon: 1. a coal pyrolysis unit; 2. a gas compressor; 3. a hydrogen production unit; 4. a gas boiler; 5. a temperature and pressure reducing device; 6. a steam turbine generator; 7. a steam main pipe; 8. a first valve; 9. a first branch pipe; 10. A second valve; 11. a second branch pipe; 12. a third valve; 13. a fourth valve; 14. and a fifth valve.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the embodiments of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have specific orientations, be configured in specific orientations, and operate, and thus, should not be construed as limiting the present invention. The terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. Specific meanings of the above terms in the embodiments of the present invention can be understood by those of ordinary skill in the art according to specific situations.
Referring to fig. 1, an embodiment of the utility model provides a comprehensive utilization, energy saving and emission reduction device for hydrogen production desorption gas, which includes a coal pyrolysis device 1, a gas compressor 2, a hydrogen production device 3, a gas boiler 4 and a steam conversion device; pyrolysis gas generated by the coal pyrolysis device 1 enters a gas compressor 2; the gas compressor 2 is used for increasing the pressure of the pyrolysis gas to form the increased pyrolysis gas, and the increased pyrolysis gas enters the hydrogen production device 3; the hydrogen production device 3 separates the pressurized pyrolysis gas to generate hydrogen and desorbed gas, and the desorbed gas partially enters the gas boiler 4 and serves as fuel; the gas boiler 4 is heated to produce high-temperature high-pressure steam; the steam conversion device extracts high-temperature high-pressure steam and converts the high-temperature high-pressure steam into medium-pressure steam, and the medium-pressure steam drives the coal gas compressor 2 to work through the steam turbine.
According to the comprehensive utilization, energy saving and emission reduction device for the hydrogen production desorption gas, the pyrolysis gas generated in the coal pyrolysis device 1 is subjected to pressure boosting through the coal gas compressor 2, the boosted pyrolysis gas is used as a raw material of the hydrogen production device 3 for separation, the pyrolysis gas generated after the hydrogen production device 3 is separated generates hydrogen and the desorption gas, wherein the hydrogen is used for the other process, and the generated surplus desorption gas is recycled through the system. Specifically, through newly-increased gas boiler 4, utilize surplus desorption gas as gas boiler 4's fuel, and then produce high temperature high pressure steam, then convert high temperature high pressure steam into middling pressure steam through steam conversion device, then regard middling pressure steam as the drive raw materials of gas compressor 2, realize the comprehensive utilization of surplus desorption gas, reduce the power consumption. By adopting the hydrogen production desorption gas comprehensive utilization and energy-saving emission-reduction device, the problem of low utilization rate of the desorption gas of the hydrogen production device 3 in the prior art is effectively solved, energy conservation and consumption reduction are realized, and the utilization rate of resources is improved.
In the embodiment, the gas compressor 2 is driven by steam to achieve the purpose of reducing the energy loss of steam converted electric energy, and the desorbed gas generated by the hydrogen production device 3 is used as the fuel of the gas boiler 4, so that the generated medium-pressure steam is directly used as the driving force of high-power-consumption equipment, the energy loss of steam power generation is reduced, and the energy utilization efficiency is improved.
As shown in fig. 1, the steam reformer includes a temperature and pressure reducing device 5; high-temperature high-pressure steam generated by the gas boiler 4 enters the temperature and pressure reduction device 5, deoxygenated water is injected into the temperature and pressure reduction device 5, the high-temperature high-pressure steam is converted into medium-pressure steam, and the medium-pressure steam drives the gas compressor 2 to work through the steam turbine.
The steam reforming device in this embodiment adopts temperature and pressure reduction device 5, and is concrete, through injecting the deoxidization water to temperature and pressure reduction device 5, the gasification of deoxidization water can take away a large amount of heat, consequently, realized turning into middling pressure steam with high temperature high pressure steam, then carry out reuse in transmitting middling pressure steam to gas compressor 2, through steam turbine drive, with gas compressor 2 work, and then reduced and operated through electric drive gas compressor 2, realize the comprehensive utilization of surplus desorption gas, reduce the power consumption.
In addition, practical this embodiment's temperature and pressure reduction device 5 can also carry out recycle with the high temperature high pressure in the conversion process when the high temperature high pressure steam of conversion, has further improved the utilization ratio of resource.
Referring to fig. 1, the steam reforming apparatus includes a turbo generator 6; after the turbo generator 6 utilizes the high-temperature high-pressure steam to do work to generate power, medium-pressure steam is output by pumping, and the medium-pressure steam drives the gas compressor 2 to work through the steam turbine.
Steam turbine generator 6 is adopted to the steam conversion device in this embodiment, it is concrete, high temperature high pressure steam that produces in the gas boiler 4 is extracted through steam turbine generator 6, steam turbine generator 6 can directly utilize this high temperature high pressure steam to generate electricity and send outward as the raw materials, steam turbine generator 6 outputs medium pressure steam through bleeding after doing work, then this medium pressure steam is used for supplying gas compressor 2 drive, and then reduced and operated through electric drive gas compressor 2, realize the comprehensive utilization of surplus desorption gas, reduce the power consumption, the utilization ratio of high temperature high pressure steam has still been improved simultaneously.
Referring to fig. 1, high-temperature and high-pressure steam generated in the gas boiler 4 is delivered to the steam reforming apparatus through a steam main 7, and a fifth valve 14 is provided on the steam main 7.
In this embodiment, the fifth valve 14 is provided on the steam main pipe 7, so as to control the use of the high-temperature and high-pressure steam generated in the gas boiler 4 at any time according to the actual production needs, and when the steam reforming device fails, the fifth valve 14 can be closed, thereby ensuring the safety of production.
As shown in FIG. 1, the temperature and pressure reducing device 5 is communicated with the steam main pipe 7 through a first branch pipe 9, and a first valve 8 is arranged on the first branch pipe 9.
In this embodiment, the first branch pipe 9 is provided with a first valve 8, so as to control the conversion amount of the high-temperature and high-pressure steam generated in the gas boiler 4 when the high-temperature and high-pressure steam is converted by the temperature and pressure reducing device 5 at any time according to actual production needs.
Referring to fig. 1, a third valve 12 is arranged on a pipeline of the temperature and pressure reducing device 5 communicated with the gas compressor 2.
In this embodiment, a third valve 12 is disposed on a pipeline of the temperature and pressure reducing device 5 communicating with the gas compressor 2, so as to adjust the flow of the outgoing medium-pressure steam converted by the temperature and pressure reducing device 5.
Referring to fig. 1, the steam turbine generator 6 is connected to the steam main 7 through a second branch pipe 11, and a second valve 10 is disposed on the second branch pipe 11.
In this embodiment, the second branch pipe 11 is provided with a second valve 10, so as to control the conversion amount of the high-temperature and high-pressure steam generated in the gas boiler 4 when the high-temperature and high-pressure steam is converted by the steam turbine generator 6 at any time according to actual production needs. Furthermore, the first valve 8, the fifth valve 14 and the second valve 10 are all open-close valves.
Referring to fig. 1, a fourth valve 13 is arranged on a pipeline of the turbonator 6 communicated with the gas compressor 2.
In this embodiment, a fourth valve 13 is disposed on a pipeline of the steam turbine generator 6 communicating with the gas compressor 2, so as to adjust the flow rate of the medium pressure steam generated by the steam turbine generator 6. The third valve 12 and the fourth valve 13 are furthermore flow control valves.
By adopting the hydrogen production desorption gas comprehensive utilization and energy-saving emission-reduction device in the embodiment, 6 gas compressors 2 are driven by steam, the steam fuel source is the recovery and utilization of the desorption gas, the cost is not counted, 1.75 million tons of electric energy is saved in total every year, the unit electricity price is 0.47 yuan/degree, and the cost can be saved by 8225 ten thousand yuan every year.
In addition, hydrogen production desorption gas is directly converted into medium-pressure steam for driving the gas compressor 2, so that heat energy loss of steam conversion electric energy is reduced, and energy conversion efficiency is greatly improved. The energy consumption can be reduced by 7.0 ten thousand tons per year, the carbon emission is reduced by 1.75 ten thousand tons, and the environmental protection benefit is remarkable.
The embodiments in the present specification are described in a progressive manner, and the same or similar parts among the embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments.
The above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the present application; although the present application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present disclosure.
Claims (8)
1. The comprehensive utilization, energy conservation and emission reduction device for the hydrogenolysis inhalation is characterized by comprising a coal pyrolysis device (1), a coal gas compressor (2), a hydrogen production device (3), a gas boiler (4) and a steam conversion device;
pyrolysis gas generated by the coal pyrolysis device (1) enters the coal gas compressor (2);
the gas compressor (2) is used for increasing the pressure of the pyrolysis gas to form an increased pyrolysis gas, and the increased pyrolysis gas enters the hydrogen production device (3);
the hydrogen production device (3) separates the pressurized pyrolysis gas to generate hydrogen and desorption gas, and the desorption gas partially enters the gas-fired boiler (4) and serves as fuel;
the gas boiler (4) produces high-temperature high-pressure steam;
the steam conversion device converts the high-temperature high-pressure steam into medium-pressure steam, and the medium-pressure steam drives the coal gas compressor (2) to work through a steam turbine.
2. The hydrogen production and desorption gas comprehensive utilization and energy-saving emission-reduction device according to claim 1, wherein the steam conversion device comprises a temperature-reducing and pressure-reducing device (5);
high-temperature high-pressure steam generated by the gas boiler (4) enters the temperature and pressure reducing device (5), deoxygenated water is injected into the temperature and pressure reducing device (5), the high-temperature high-pressure steam is converted into medium-pressure steam, and the medium-pressure steam drives the gas compressor (2) to work through a steam turbine.
3. The hydrogen production and desorption gas comprehensive utilization and energy-saving emission reduction device as claimed in claim 1, wherein the steam conversion device comprises a turbine generator (6);
and after the high-temperature high-pressure steam is used for doing work to generate electricity, the steam turbine generator (6) outputs medium-pressure steam through air extraction, and the medium-pressure steam drives the gas compressor (2) to work through a steam turbine.
4. The hydrogen production and desorption gas comprehensive utilization and energy-saving emission-reduction device according to claim 1, wherein high-temperature and high-pressure steam generated in the gas-fired boiler (4) is transmitted to the steam reforming device through a steam main pipe (7), and a fifth valve (14) is arranged on the steam main pipe (7).
5. The hydrogen production desorption gas comprehensive utilization and energy-saving emission-reduction device according to claim 2, wherein the temperature and pressure reduction device (5) is communicated with the steam main pipe (7) through a first branch pipe (9), and the first branch pipe (9) is provided with a first valve (8).
6. The hydrogen production and desorption gas comprehensive utilization and energy-saving emission-reduction device according to claim 5, wherein a third valve (12) is arranged on a pipeline of the temperature and pressure reduction device (5) communicated with the gas compressor (2).
7. The hydrogen production and desorption gas comprehensive utilization and energy-saving emission-reduction device according to claim 3, wherein the steam turbine generator (6) is communicated with the steam main pipe (7) through a second branch pipe (11), and the second branch pipe (11) is provided with a second valve (10).
8. The hydrogen production and desorption gas comprehensive utilization and energy-saving emission-reduction device according to claim 7, wherein a fourth valve (13) is arranged on a pipeline of the steam turbine generator (6) communicated with the gas compressor (2).
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| CN202122230271.4U CN215949595U (en) | 2021-09-15 | 2021-09-15 | Comprehensive utilization, energy saving and emission reduction device for hydrogenolysis and inspiration |
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| CN202122230271.4U CN215949595U (en) | 2021-09-15 | 2021-09-15 | Comprehensive utilization, energy saving and emission reduction device for hydrogenolysis and inspiration |
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