CN216192113U - Flue gas treatment system - Google Patents
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- CN216192113U CN216192113U CN202122630266.2U CN202122630266U CN216192113U CN 216192113 U CN216192113 U CN 216192113U CN 202122630266 U CN202122630266 U CN 202122630266U CN 216192113 U CN216192113 U CN 216192113U
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Abstract
The embodiment of the present disclosure provides a flue gas treatment system, which includes: the system comprises a gasification device, a flue gas providing unit and a gas processing unit; the gasification apparatus includes: the system comprises a heat storage unit, a gasification unit, a low-temperature carbonization unit, a flue gas temperature adjusting and tempering unit, an oxygen-enriched gas supply unit and a steam supply unit. In the embodiment of the disclosure, the high-temperature flue gas rich in carbon dioxide and water vapor in the flue gas providing unit is treated by the gasification device to obtain carbon monoxide and hydrogen, and the carbon monoxide and the hydrogen can be used as raw material gases for chemical production and can also be used as reducing agents in steel and metallurgy industries.
Description
Technical Field
The present disclosure relates to the field of flue gas treatment technology, and in particular, to a flue gas treatment system.
Background
At present, the industrial approach for generating high-temperature flue gas is mainly combustion of combustible substances. The combustion routes are mainly three as follows: combustion of gaseous fuels, combustion of liquid fuels and combustion of solid fuels. The combustion process is a chemical reaction process, elements mainly containing hydrocarbon in combustible substances react with oxygen in combustion air under certain conditions to release a large amount of heat, and high-temperature flue gas mainly containing carbon dioxide and water vapor is generated.
Carbon dioxide is used as a greenhouse gas and has great influence on climate and environment, so how to reduce the emission of carbon dioxide is an urgent problem to be solved.
SUMMERY OF THE UTILITY MODEL
It is an object of embodiments of the present disclosure to provide a flue gas treatment system to reduce carbon dioxide emissions. The specific technical scheme is as follows:
the embodiment of the present disclosure provides a flue gas treatment system, including:
a gasification device having a gas supply conduit and a gas exhaust conduit; the flue gas supply unit is connected with the gasification device through a gas supply pipeline, and the gas treatment unit is connected with the gasification device through a gas exhaust pipeline;
the gasification apparatus includes: the system comprises a heat storage unit, a gasification unit, a low-temperature dry distillation unit, a flue gas temperature adjusting and tempering unit, an oxygen-enriched gas supply unit and a steam supply unit;
the thermal storage unit is configured to provide heat to the gasification unit; the low-temperature dry distillation unit is configured to provide the gasification unit with carbonized materials;
wherein, the outlet of the smoke providing unit is connected with the inlet of the heat storage unit through an air supply pipeline;
the outlet of the heat storage unit is connected with the inlet of the low-temperature carbonization unit, the outlet of the low-temperature carbonization unit is connected with the inlet of the flue gas temperature regulating and tempering unit, and the outlet of the flue gas temperature regulating and tempering unit is connected with the inlet of the gasification unit;
the outlet of the oxygen-enriched gas supply unit is connected with the inlet of the flue gas temperature regulating and tempering unit, and the outlet of the water vapor supply unit is connected with the outlet of the flue gas temperature regulating and tempering unit;
the outlet of the gasification unit is connected with the inlet of the gas treatment unit through an exhaust pipeline.
According to the flue gas treatment system of the embodiment of the disclosure, the flue gas providing unit is used for providing flue gas, and the flue gas comprises carbon dioxide and water vapor; the heat storage unit is used for providing heat for the reaction in the gasification unit by using flue gas; the low-temperature dry distillation unit is used for dry distillation of the carbon raw material by using flue gas to obtain a carbonized material and combustible gas; the oxygen-enriched gas supply unit is used for providing oxygen-enriched gas, and the water vapor supply unit is used for providing water vapor; the flue gas temperature regulating and tempering unit is used for reacting combustible gas and oxygen-enriched gas to obtain a reaction gas source, the reaction gas source comprises carbon dioxide and water, the carbon dioxide is obtained by adding supplementary carbon materials for combustion so as to regulate the concentration of the carbon dioxide in the reaction gas source, the concentration of the water vapor in the reaction gas source is regulated by adding water vapor, the carbon-hydrogen ratio in the reaction gas source is further regulated, and the introduced water vapor is also used for regulating the temperature of the reaction gas source; the gasification unit is used for reacting a reaction gas source with a carbonized material to obtain a mixed gas, and the mixed gas comprises carbon monoxide, hydrogen and waste gas; the gas treatment unit is used for separating the mixed gas to obtain carbon monoxide and hydrogen.
In the smoke treatment process, high-temperature smoke provided by a smoke providing unit enters a heat storage unit through a gas supply pipeline and an inlet of the heat storage unit to provide required heat for reaction in a gasification unit, the cooled smoke is discharged from an outlet of the heat storage unit and enters a low-temperature carbonization unit through an inlet of the low-temperature carbonization unit, a carbon raw material is carbonized under the action of the smoke to obtain a carbonized material and a combustible gas, wherein the carbonized material enters the gasification unit, the combustible gas is discharged from an outlet of the low-temperature carbonization unit and enters the smoke temperature regulation and conditioning unit through an inlet of the smoke temperature regulation and conditioning unit, meanwhile, oxygen-enriched gas provided by an oxygen-enriched gas supply unit enters the smoke temperature regulation and conditioning unit through an inlet of the smoke temperature regulation and conditioning unit, the combustible gas and the oxygen-enriched gas are in contact combustion to obtain a reaction gas source containing carbon dioxide and water vapor, and supplementary carbon materials are added into the smoke temperature regulation and conditioning unit to be combusted to obtain the carbon dioxide so as to regulate the concentration of the carbon dioxide in the reaction gas source The temperature of the reaction gas source is adjusted by introducing steam into an outlet of the flue gas temperature adjusting and tempering unit, so that the concentration of the steam in the reaction gas source is adjusted, the carbon-hydrogen ratio in the reaction gas source is adjusted, the introduced steam is also used for adjusting the temperature of the reaction gas source, the reaction gas source after temperature adjustment and tempering enters the gasification unit through an inlet of the gasification unit, and reacts with the carbonized material to obtain a mixed gas, wherein the mixed gas comprises carbon monoxide, hydrogen and waste gas, the mixed gas after reaction is discharged from an outlet of the gasification unit and enters the gas treatment unit through an exhaust pipeline and an inlet of the gas treatment unit, and the carbon monoxide and the hydrogen are obtained through gas separation. In the embodiment of the disclosure, the high-temperature flue gas rich in carbon dioxide and water vapor in the flue gas providing unit is processed by the gasification device, the carbon dioxide in the flue gas is converted into carbon monoxide, the water vapor in the flue gas is converted into hydrogen and carbon monoxide, and the carbon monoxide and the hydrogen can be used as raw material gases for chemical production and can also be used as reducing agents in the steel and metallurgical industries.
In addition, the flue gas treatment system according to the embodiment of the present disclosure may further have the following additional technical features:
in some embodiments of the present disclosure, the heat storage unit includes a plurality of heat storage modules, the gasification unit includes a plurality of gasification modules, the plurality of heat storage modules and the plurality of gasification modules are alternately arranged, the heat storage modules and the gasification modules in adjacent relationship are in contact with each other so that the heat storage modules provide heat to the gasification modules, and the number of the heat storage modules is greater than the number of the gasification modules;
the low-temperature dry distillation unit is arranged above the gasification unit, and the flue gas temperature adjusting and tempering unit is arranged below the gasification unit.
In some embodiments of the present disclosure, the gasification apparatus further comprises: the heat exchange unit is arranged below the gasification unit, and an outlet of the gasification unit is also connected with an inlet of the heat exchange unit.
In some embodiments of the present disclosure, the heat storage module includes: flue, regenerator and flue gas vent.
In some embodiments of the present disclosure, the gasification module comprises: reaction gas source air inlet, first feed arrangement, vaporizer, gas mixture gas vent and first discharging device.
In some embodiments of the present disclosure, the low temperature retort unit comprises: flue gas inlet, second feed arrangement, carbomorphism room, combustible gas vent and second discharge device.
In some embodiments of the present disclosure, the flue gas tempering unit comprises: a combustible gas inlet, an oxygen-enriched gas inlet, a third feeding device, a burner, a water vapor inlet and a reaction gas source outlet.
Drawings
In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and it is obvious for those skilled in the art that other embodiments can be obtained by using the drawings without creative efforts.
FIG. 1 is a flue gas treatment system according to an embodiment of the present disclosure;
FIG. 2 is a flue gas treatment system according to another embodiment of the present disclosure.
Detailed Description
The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are only a part of the embodiments of the present disclosure, and not all of the embodiments. All other embodiments derived from the present application by a person of ordinary skill in the art based on the embodiments in the present disclosure are within the scope of protection of the present disclosure.
As shown in fig. 1, a first aspect of the present application proposes a flue gas treatment system, as shown in fig. 1, comprising: a gasification device 1 having a gas supply duct a and a gas discharge duct b; a flue gas supply unit 2 connected with the gasification device 1 through a gas supply pipeline a, and a gas treatment unit 3 connected with the gasification device 1 through a gas exhaust pipeline b;
the gasification apparatus 1 includes: the system comprises a heat storage unit 10, a gasification unit 20, a low-temperature dry distillation unit 30, a flue gas temperature regulation and tempering unit 40, an oxygen-enriched gas supply unit 50 and a water vapor supply unit 60;
the heat storage unit 10 is configured to provide heat to the gasification unit 20; the low temperature dry distillation unit 30 is configured to provide the gasification unit 20 with a carbonized material;
wherein, the outlet of the smoke providing unit 2 is connected with the inlet of the heat storage unit 10 through a gas supply pipeline a;
the outlet of the heat storage unit 10 is connected with the inlet of the low-temperature carbonization unit 30, the outlet of the low-temperature carbonization unit 30 is connected with the inlet of the flue gas temperature regulating and tempering unit 40, and the outlet of the flue gas temperature regulating and tempering unit 40 is connected with the inlet of the gasification unit 20;
the outlet of the oxygen-enriched gas supply unit 50 is connected with the inlet of the flue gas temperature regulating and tempering unit 40, and the outlet of the water vapor supply unit 60 is connected with the outlet of the flue gas temperature regulating and tempering unit 40;
the outlet of the gasification unit 20 is connected to the inlet of the gas treatment unit 3 via an exhaust line b.
According to the flue gas treatment system of the embodiment of the disclosure, the flue gas providing unit 2 is used for providing flue gas, and the flue gas comprises carbon dioxide and water vapor; the heat storage unit 10 is used for providing heat for the reaction in the gasification unit 20 by using flue gas; the low-temperature dry distillation unit 30 is used for dry distillation of a carbon raw material by using flue gas to obtain a carbonized material and a combustible gas, wherein the carbon raw material can be fruit shells, coal, wood and the like; an oxygen-enriched gas supply unit 50 for supplying oxygen-enriched gas, a water vapor supply unit 60 for supplying water vapor; the flue gas temperature regulating and tempering unit 40 is used for reacting combustible gas and oxygen-enriched gas to obtain a reaction gas source, wherein the reaction gas source comprises carbon dioxide and water, and the carbon dioxide is obtained by adding a supplementary carbon material for combustion so as to regulate the concentration of the carbon dioxide in the reaction gas source, wherein the supplementary carbon material can be coal, charcoal and the like, the concentration of water vapor in the reaction gas source is regulated by adding water vapor so as to regulate the carbon-hydrogen ratio in the reaction gas source, and the introduced water vapor is also used for regulating the temperature of the reaction gas source; the gasification unit 20 is used for reacting a reaction gas source with a carbonized material to obtain a mixed gas, wherein the mixed gas comprises carbon monoxide, hydrogen and waste gas; the gas treatment unit 3 is used for separating the mixed gas to obtain carbon monoxide and hydrogen.
In the process of flue gas treatment, high-temperature flue gas (more than 950 ℃) provided by the flue gas providing unit 2 enters the heat storage unit 10 through the gas supply pipeline a and the inlet of the heat storage unit 10 to provide heat required by the reaction in the gasification unit 20, the cooled flue gas (more than 550 ℃) is discharged from the outlet of the heat storage unit 10 and enters the low-temperature carbonization unit 30 through the inlet of the low-temperature carbonization unit 30, the carbon raw material is carbonized (500-600 ℃) under the action of the flue gas to obtain carbonized material and combustible gas (500-600 ℃), wherein the carbonized material enters the gasification unit 20, the combustible gas is discharged from the outlet of the low-temperature carbonization unit 30 and enters the flue gas temperature adjusting and conditioning unit 40 through the inlet of the flue gas temperature adjusting and conditioning unit 40, and meanwhile, the gas provided by the oxygen-enriched gas providing unit 50 enters the flue gas temperature adjusting and conditioning unit 40 through the inlet of the flue gas temperature adjusting and conditioning unit 40, the combustible gas and the oxygen-enriched gas are in contact combustion to obtain a reaction gas source containing carbon dioxide and water vapor, supplementary carbon materials are added into the flue gas temperature regulating and tempering unit 40 to be combusted to obtain the carbon dioxide so as to regulate the concentration of the carbon dioxide in the reaction gas source, the water vapor is introduced into an outlet of the flue gas temperature regulating and tempering unit 40 so as to regulate the concentration of the water vapor in the reaction gas source, the carbon-hydrogen ratio in the reaction gas source is further regulated, the water vapor is introduced to regulate the temperature of the reaction gas source, the regulated reaction gas source enters the gasification unit through an inlet of the gasification unit 20 to react with the carbonized material to obtain a mixed gas, the mixed gas comprises carbon monoxide, hydrogen and waste gas, the reacted mixed gas (more than 550 ℃) is discharged from an outlet of the gasification unit 20 and enters the gas treatment unit 3 through an exhaust pipeline b and an inlet of the gas treatment unit 3 to perform gas separation, carbon monoxide and hydrogen are obtained. In the embodiment of the disclosure, the high-temperature flue gas rich in carbon dioxide and water vapor in the flue gas providing unit 2 is processed by the gasification device 1, then the carbon dioxide in the flue gas is converted into carbon monoxide, the water vapor in the flue gas is converted into hydrogen and carbon monoxide, and the carbon monoxide and the hydrogen can be used as raw material gases for chemical production and can also be used as reducing agents in the steel and metallurgy industries.
In some embodiments of the present disclosure, the amount of the carbonized material added into the gasification unit 20 and the amount of the reaction gas source introduced into the gasification unit 20 are adjusted, so that when the carbonized material is excessive, the carbonized material and the reaction gas source are activated to obtain a mixed gas and activated carbon, and the activated carbon can be used for adsorbing toxic gases, so that embodiments of the present disclosure can adjust the reaction product by controlling the gasification conditions to generate the byproduct activated carbon.
In some embodiments of the present disclosure, the high-temperature flue gas provided by the flue gas providing unit 2 has a temperature above 950 ℃, mainly includes carbon dioxide and water vapor, and may be a coke oven flue gas or a high-temperature flue gas generated in other industrial production processes.
In some embodiments of the present disclosure, the gas processing unit 3 may be a purification and flue gas separation device, for example, including a desulfurization device and a pressure swing adsorption separation device, and the mixed gas is desulfurized by the desulfurization device and then enters the pressure swing adsorption separation device for gas separation to obtain carbon monoxide and hydrogen.
In some embodiments of the present disclosure, the oxygen-enriched gas provided by the oxygen-enriched gas supply unit 50 is a gas with an oxygen content of more than 21%, and the other gas in the oxygen-enriched gas than oxygen may be carbon dioxide. The oxygen-enriched gas containing oxygen and carbon dioxide is introduced into the flue gas temperature regulation and tempering unit 40 and is in contact combustion with combustible gas, compared with the direct introduction of combustion-supporting air, the oxygen-enriched gas has more oxygen content and does not contain nitrogen, so that the content of nitrogen in a reaction gas source obtained after combustion can be reduced, and then, the generation of pollution is avoided from the source.
In some embodiments of the present disclosure, as shown in fig. 2, the thermal storage unit 10 includes a plurality of thermal storage modules 110, the gasification unit 20 includes a plurality of gasification modules 210, the plurality of thermal storage modules 110 and the plurality of gasification modules 210 are alternately arranged, and the thermal storage modules 110 and the gasification modules 210 in adjacent relation are in contact with each other, so that the thermal storage modules 110 provide heat to the gasification modules 210, and the number of the thermal storage modules 110 is greater than that of the gasification modules 210; the low-temperature dry distillation unit 30 is arranged above the gasification unit 20, and the flue gas temperature regulating and tempering unit 40 is arranged below the gasification unit 20.
The high-temperature flue gas entering the plurality of heat storage modules 110 through the inlet of the heat storage unit 10 transfers heat to the adjacent gasification module 210 through the furnace wall, so as to provide heat required by the reaction for the gasification reaction in the gasification module 210. The method comprises the steps that a carbonized material and combustion-supporting gas are obtained after carbonization of a carbon raw material in a low-temperature dry distillation unit 30, the carbonized material enters a plurality of gasification modules 210 through an inlet above a gasification unit 20, a reaction gas source provided by a flue gas temperature regulation and tempering unit 40 enters the plurality of gasification modules 210 through an inlet below the gasification unit 20, in the gasification modules 210, the carbonized material entering from the upper side and the reaction gas source entering from the lower side are in reverse contact and are subjected to gasification reaction to obtain a mixed gas, the mixed gas comprises carbon monoxide, hydrogen and waste gas, carbon dioxide in the reaction gas source reacts with carbon in the carbonized material to obtain carbon monoxide, water vapor in the reaction gas source reacts with carbon in the carbonized material to obtain carbon monoxide and hydrogen, the waste gas is unreacted gas and mainly comprises nitrogen, water vapor and the like, and in the mixed gas, the waste gas is only a very small part.
In one embodiment of the present disclosure, as shown in fig. 2, the number of the heat storage modules 110 is greater than the number of the gasification modules 210, specifically, the number of the heat storage modules 110 is always one more than the number of the gasification modules 210, the number of the gasification modules 210 may be 3 when the number of the heat storage modules 110 is 4, the number of the gasification modules 210 may be 9 when the number of the heat storage modules 110 is 10, and the number of the gasification modules 210 may be 29 when the number of the heat storage modules 110 is 30.
In one embodiment of the present disclosure, as shown in fig. 1 and 2, the gasification apparatus 1 further includes: the heat exchange unit 70, the heat exchange unit 70 is arranged below the gasification unit 20, and the outlet of the gasification unit 20 is further connected with the inlet of the heat exchange unit 70.
The amount of the carbonization material of adjustment joining in gasification unit 20, and the volume of the reaction gas source that lets in, when making the carbonization material excessive, carbonization material and reaction gas source take place to react and can obtain gas mixture and active carbon, the gas mixture discharges through the export of a plurality of gasification module 210 tops, the active carbon is discharged from the export of a plurality of gasification module 210 below, at this moment, the temperature of the active carbon of gasification unit 20 exhaust is very high, and heat transfer unit 70 is then used for carrying out the heat transfer of a plurality of gasification module 210 exhaust high temperature active carbon and other gases, retrieve the sensible heat of active carbon, the active carbon after heat recovery can be followed the mill and transported, wherein, heat transfer unit can be the heat exchanger, other gases can be vapor.
In an embodiment of the present disclosure, as shown in fig. 1, the outlet of the heat storage unit 10 may be further connected to the inlet of the gas processing unit 3, a part of the flue gas discharged from the heat storage unit 10 may enter the low-temperature carbonization unit 30, and another part of the flue gas may directly enter the gas processing unit 3 for gas separation, and the gas processing unit 3 may directly separate and collect carbon dioxide for other purposes, for example, the collected carbon dioxide and pure oxygen may be mixed to obtain an oxygen-enriched gas, which is then introduced into the oxygen-enriched gas supply unit 50.
In some embodiments of the present disclosure, as shown in fig. 2, the thermal storage module 110 includes: flue 1110, regenerator 1120, and flue gas exhaust 1130.
In the flue gas treatment process, the flue gas provided by the flue gas providing unit 2 is uniformly distributed to the plurality of flues 1110 through the gas supply pipeline a, the flue gas enters the corresponding regenerator 1120 through the plurality of flues 1110, heat required by the gasification reaction is provided for the adjacent gasification modules 210 in the regenerator 1120, and the cooled flue gas is discharged through the corresponding flue gas exhaust port 1130.
In some embodiments of the present disclosure, as shown in fig. 2, the gasification module 210 comprises: reaction gas source inlet 2110, first feed device 2120, vaporizer 2130, mixture gas vent 2140, and first discharge device 2150.
In the flue gas treatment process, a reaction gas source provided by the flue gas temperature regulation and tempering unit 40 is uniformly distributed to a plurality of reaction gas source air inlets 2110, the reaction gas source enters the corresponding gasification chamber 2130 through the reaction gas source air inlets 2110, a carbonized material provided by the low-temperature carbonization unit 30 is uniformly distributed to a plurality of first feeding devices 2120, the carbonized material enters the corresponding gasification chamber 2130 through the first feeding devices 2120, the carbonized material and the reaction gas source in the gasification chamber 2130 are subjected to gasification reaction to obtain a mixed gas containing carbon monoxide, hydrogen and waste gas, the mixed gas is discharged through the corresponding mixed gas exhaust port 2140, when the carbonized material is excessive, the carbonized material and the reaction gas source in the gasification chamber 2130 can also be subjected to activation reaction to obtain the mixed gas and activated carbon, and the activated carbon is discharged through the first discharging device 2150.
In some embodiments of the present disclosure, a plurality of low-temperature dry distillation units 30 may be provided, for example, a corresponding low-temperature dry distillation unit 30 may be provided for each gasification module 210, and the carbonized material generated in each low-temperature dry distillation unit 30 may enter the corresponding gasification module 210.
In some embodiments of the present disclosure, as shown in fig. 2, the low temperature retort unit 30 includes: a flue gas inlet 310, a second feeding device 320, a carbonization chamber 330, a combustible gas outlet 340 and a second discharging device 350.
In the flue gas treatment process, the flue gas discharged from the heat storage unit 10 enters the carbonization chamber 330 through the flue gas inlet 310 of the low-temperature carbonization unit 30, the carbon raw material enters the carbonization chamber 330 through the second feeding device 320, and the carbon raw material is carbonized in the carbonization chamber 330 under the action of the flue gas to obtain a carbonized material and a combustible gas, wherein the combustible gas can be coal gas, the carbonized material is discharged through the second discharging device 350, and the combustible gas is discharged through the combustible gas outlet 340.
In some embodiments of the present disclosure, as shown in fig. 2, the flue gas tempering unit 40 includes: a combustible gas inlet 410, an oxygen-enriched gas inlet 420, a third feed device 430, a burner 440, a water vapor inlet 450, and a reaction gas source outlet 460.
In the flue gas treatment process, combustible gas enters the combustor 440 through the combustible gas inlet 410, oxygen-enriched gas enters the combustor 440 through the oxygen-enriched gas inlet 420, the oxygen-enriched gas enters the combustor 440, the combustible gas and the oxygen-enriched gas are contacted and combusted to obtain a reaction gas source containing carbon dioxide and water vapor, the concentration of carbon dioxide in the reaction gas source can be adjusted by adding supplemental carbon materials such as coal, charcoal and the like to the burner 440 through the third feeding means 430, further adjusting the carbon-hydrogen ratio in the reaction gas source, the reaction gas source firstly passes through the water vapor inlet 450, water vapor is added at the water vapor inlet 450 to adjust the concentration of water vapor in the reaction gas source, further adjusting the carbon-hydrogen ratio in the reaction gas source, and also reducing the temperature of the reaction gas source, discharging the temperature-adjusted and tempered reaction gas source through the reaction gas source gas outlet 460, through a reactant gas supply inlet 2110 on the gasification module 210 and into the gasification module 210.
In the flue gas temperature regulation and tempering process, the yield of the reaction product can be adjusted by adjusting the carbon-hydrogen ratio in the reaction gas source, for example, the hydrogen in the reaction gas source is more, the hydrogen in the reaction product is more correspondingly, the carbon in the reaction gas source is more, and the carbon monoxide in the reaction product is more correspondingly.
In some embodiments of the present disclosure, a flow regulating valve may be disposed at the position of the combustible gas inlet 410, the oxygen-enriched gas inlet 420 and the water vapor inlet 450 to regulate the amount of gas entering, a material regulating valve is disposed at the position of the third feeding device 430 to regulate the amount of carbon material entering, a temperature detecting element and a gas detecting element may be disposed at the position of the reaction gas source outlet 460 to detect the temperature of the reaction gas source and the concentration of carbon dioxide and water vapor in the reaction gas source, the flue gas temperature regulating and conditioning unit 40 may further include a central control system, the flow regulating valve, the temperature detecting element and the gas detecting element are respectively connected to the central control system through cables, and the central control system regulates the opening degree of the flow regulating valve and the material regulating valve through the data detected by the temperature detecting element and the gas detecting element to further control the combustible gas, the oxygen-enriched gas, the water vapor, Water vapor and the amount of make-up carbon material entering.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
All the embodiments of the present disclosure are described in a related manner, and the same and similar parts among the embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments.
The above description is only for the preferred embodiment of the present disclosure, and is not intended to limit the scope of the present disclosure. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present disclosure are included in the scope of protection of the present disclosure.
Claims (7)
1. A flue gas treatment system, comprising:
a gasification device having a gas supply conduit and a gas exhaust conduit; the flue gas supply unit is connected with the gasification device through a gas supply pipeline, and the gas treatment unit is connected with the gasification device through a gas exhaust pipeline;
the gasification apparatus includes: the system comprises a heat storage unit, a gasification unit, a low-temperature dry distillation unit, a flue gas temperature adjusting and tempering unit, an oxygen-enriched gas supply unit and a steam supply unit;
the thermal storage unit is configured to provide heat to the gasification unit; the low-temperature dry distillation unit is configured to provide the gasification unit with carbonized materials;
wherein, the outlet of the smoke providing unit is connected with the inlet of the heat storage unit through an air supply pipeline;
the outlet of the heat storage unit is connected with the inlet of the low-temperature carbonization unit, the outlet of the low-temperature carbonization unit is connected with the inlet of the flue gas temperature regulating and tempering unit, and the outlet of the flue gas temperature regulating and tempering unit is connected with the inlet of the gasification unit;
the outlet of the oxygen-enriched gas supply unit is connected with the inlet of the flue gas temperature regulating and tempering unit, and the outlet of the water vapor supply unit is connected with the outlet of the flue gas temperature regulating and tempering unit;
the outlet of the gasification unit is connected with the inlet of the gas treatment unit through an exhaust pipeline.
2. The flue gas treatment system of claim 1 wherein the thermal storage unit comprises a plurality of thermal storage modules and the gasification unit comprises a plurality of gasification modules, the plurality of thermal storage modules and the plurality of gasification modules being arranged in an alternating relationship, the thermal storage modules and the gasification modules in adjacent relationship being in contact with one another such that the thermal storage modules provide heat to the gasification modules, the number of thermal storage modules being greater than the number of gasification modules;
the low-temperature dry distillation unit is arranged above the gasification unit, and the flue gas temperature adjusting and tempering unit is arranged below the gasification unit.
3. The flue gas treatment system of claim 2, wherein the gasification device further comprises: the heat exchange unit is arranged below the gasification unit, and an outlet of the gasification unit is also connected with an inlet of the heat exchange unit.
4. The flue gas treatment system of claim 2, wherein the thermal storage module comprises: flue, regenerator and flue gas vent.
5. The flue gas treatment system of claim 2, wherein the gasification module comprises: reaction gas source air inlet, first feed arrangement, vaporizer, gas mixture gas vent and first discharging device.
6. The flue gas treatment system of claim 2, wherein the low temperature retort unit comprises: flue gas inlet, second feed arrangement, carbomorphism room, combustible gas vent and second discharge device.
7. The flue gas treatment system of claim 2, wherein the flue gas tempering unit comprises: a combustible gas inlet, an oxygen-enriched gas inlet, a third feeding device, a burner, a water vapor inlet and a reaction gas source outlet.
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| CN202122630266.2U CN216192113U (en) | 2021-10-29 | 2021-10-29 | Flue gas treatment system |
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| CN202122630266.2U CN216192113U (en) | 2021-10-29 | 2021-10-29 | Flue gas treatment system |
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| CN216192113U true CN216192113U (en) | 2022-04-05 |
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