CN214307142U - Device for treating temperature swing adsorption impurity removal regenerated gas - Google Patents
Device for treating temperature swing adsorption impurity removal regenerated gas Download PDFInfo
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- CN214307142U CN214307142U CN202023301106.5U CN202023301106U CN214307142U CN 214307142 U CN214307142 U CN 214307142U CN 202023301106 U CN202023301106 U CN 202023301106U CN 214307142 U CN214307142 U CN 214307142U
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Abstract
The utility model discloses a handle device of temperature swing adsorption edulcoration regeneration gas belongs to the technical field of production ethylene glycol technology. The device comprises a temperature swing adsorption impurity removal regenerated gas pipeline, a pressure swing adsorption separation CO regenerated gas pipeline, a venting torch main pipe, a blast furnace gas main pipe, an incinerator main pipe and a conveying pipeline group. The temperature swing adsorption impurity removal regenerated gas pipeline and the pressure swing adsorption separation CO regenerated gas pipeline are combined, the generated mixed tail gas is respectively discharged into a flare header pipe, an incinerator header pipe and a conveying pipeline set in the same direction, a stop valve is arranged in the middle of each pipeline, a pressure reducing valve, a stop valve and a check valve are further arranged in the conveying pipeline set, gas is reduced in pressure and is guaranteed to flow in the same direction, and the other end of the conveying pipeline set is connected with a blast furnace gas header pipe and then is subjected to a CO-directional sintering process. The technical problem that the sulfur content in the regenerated gas subjected to temperature swing adsorption impurity removal in the process of preparing the ethylene glycol by using the coke oven gas and the converter gas exceeds the standard is solved, the utilization rate of the comprehensive tail gas is improved, and the effect of protecting an incinerator is achieved.
Description
Technical Field
The utility model relates to a technical field of production ethylene glycol technology specifically is a handle device of temperature swing adsorption edulcoration regeneration gas.
Background
When the ethylene glycol is produced by utilizing two comprehensive tail gases of coke oven gas and converter gas, the coke oven gas temperature swing adsorption impurity removal process can adsorb a large amount of COS and CS2After regeneration and desorption, the sulfur-containing gas enters the regeneration gas. In the existing design, the coke oven gas temperature swing adsorption impurity removal regenerated gas is directly discharged to a waste gas incinerator for incineration treatment, and SO in the smoke components is caused because the incinerator does not consider the factor of exceeding standard of sulfur2The peak value is 300mg/Nm3The incinerator can not realize environmental-friendly standard emission, and the dew point corrosion of sulfur in the flue gas can be caused, so that the long-period safety and stable operation of the incinerator are greatly influenced.
SUMMERY OF THE UTILITY MODEL
The utility model provides a handle device of temperature swing adsorption edulcoration regeneration gas has solved two kinds of comprehensive tail gas system ethylene glycol technologies of coke oven gas and converter gas in the problem that sulfur content exceeds standard in the temperature swing adsorption edulcoration regeneration gas.
In order to solve the technical problem, the utility model provides a technical scheme does: the device for treating the temperature swing adsorption impurity removal regenerated gas comprises a temperature swing adsorption impurity removal process regenerated gas pipeline, a pressure swing adsorption carbon monoxide separation technology regenerated gas pipeline, a torch emptying header pipe, a blast furnace gas header pipe and an incinerator header pipe, wherein the temperature swing adsorption impurity removal process regenerated gas pipeline and the pressure swing adsorption carbon monoxide separation technology regenerated gas pipeline are combined into a regenerated gas input header pipe and are respectively communicated with the incinerator header pipe and the torch emptying header pipe.
The device comprises a regeneration gas input main pipe, a sulfur-containing gas pipeline set, a pressure reducing valve, a stop valve and a check valve, wherein the sulfur-containing gas pipeline set comprises a first pipeline and a concentric reducing pipe, one end of the concentric reducing pipe is connected with the regeneration gas input main pipe, and the other end of the concentric reducing pipe is connected with the first pipeline; the other end of the first pipeline is connected with a blast furnace gas main pipe and leads to a fuel gas inlet of a sintering process; the pressure reducing valve is installed on a first pipeline behind the stop valve, and the stop valve is arranged between the pressure reducing valve and the check valve. The nominal pressure grade of the valve is PN150LB, and the pressure of the regeneration gas is reduced to 20KPa after the pressure of the regeneration gas is discharged from the regeneration gas input main pipe and is mixed with the gas in the blast furnace gas main pipe.
The tail end of the regenerated gas input main pipe is provided with a first stop valve, the front end of the first pipeline is provided with a second stop valve, and the second stop valve is combined with a check valve at the rear end to be used, so that the effect of safely isolating gas is achieved.
The regenerated gas of the temperature swing adsorption impurity removal process, the rear end of the flare emptying header pipe and the pipeline incinerator header pipe are respectively provided with a plurality of stop valves for controlling the flow direction of the regenerated gas in the device.
The first pipeline also comprises a blind plate valve, and the blind plate valve is used as a gate valve capable of cutting off the regeneration gas and a gas valve to control the circulation of the regeneration gas in the first pipeline together.
The pressure reducing valve, the stop valve and the check valve are in threaded connection with the pipeline, so that the space at the joint of the valve and the pipeline is saved, and the total weight of the device is reduced.
With torch blowdown house steward rear that regeneration gas input house steward intercommunication still is provided with torch house steward and edulcoration process and purifies the gas house steward, and the regeneration gas of following torch blowdown house steward output divide into two the tunnel, and wherein the air accesss to torch house steward, and the gas that purifies is discharged outside to through edulcoration process purification gas house steward.
Furthermore, the temperature swing adsorption impurity removal regeneration gas pipeline comprises a first regeneration gas pipeline and a second regeneration gas pipeline, gas mixed by the two pipelines is mixed with gas in the regeneration gas pipeline of the pressure swing adsorption carbon monoxide separation technology, and the mixed gas is introduced into the regeneration gas input header pipe.
When treating coke oven gas temperature swing adsorption impurity removal regeneration gas in a process for manufacturing ethylene glycol, mixing the temperature swing adsorption impurity removal regeneration gas from a first regeneration gas pipeline and a second regeneration gas pipeline, mixing the mixed regeneration gas with the regeneration gas output from a regeneration gas pipeline of a pressure swing adsorption carbon monoxide separation technology, introducing the mixed regeneration gas into a regeneration gas input main pipe, wherein the rear part of the regeneration gas input main pipe comprises a branch pipeline: the device comprises a torch emptying header pipe, an incinerator header pipe and a sulfur-containing gas pipeline group. Wherein the incinerator main pipe comprises a plurality of stop valves, and the other end of the pipeline is communicated with the incinerator; the other end of the flare emptying header pipe also comprises a branch pipeline, one flare header pipe is used for circulating air, and the other impurity removal process purified gas header pipe is used for circulating purified gas in the impurity removal process and discharging the purified gas out of the room; the sulfur-containing gas pipeline set comprises a first pipeline and a concentric reducing pipe, the first pipeline is connected with a regenerated gas input main pipe through the concentric reducing pipe, valves such as a second stop valve, a pressure reducing valve, a stop valve and a check valve are sequentially installed in the middle of the first pipeline, so that the pressure and the flow direction of sulfur-containing gas in the first pipeline are controlled, stable and safe conveying of sulfur-containing regenerated gas after entering the first pipeline is ensured, the tail end of the first pipeline is connected with a blast furnace gas main pipe, and the tail end of the first pipeline is jointly used as a fuel gas inlet of a fuel gas input sintering process.
Compared with the prior art, the utility model has the substantive characteristics that: by utilizing the characteristic that blast furnace gas originally used as fuel gas in the sintering process of an iron plant contains sulfur, the regeneration gas generated in the coke oven gas temperature swing adsorption impurity removal process is sent to the sintering process and is also recycled as fuel gas; therefore, the problem that the content of sulfur in the regenerated gas exceeds the standard is solved, the influence on the safe operation of a downstream waste gas incinerator is avoided, the environment protection of the gas at the factory discharge position is ensured to reach the standard, and the stable operation of the coke-oven gas temperature swing adsorption impurity removal process is ensured. The device is used for pipeline reconstruction, the investment cost is low, the reconstruction project is simple, the time consumption is low, the production effect is good, the maintenance is simple, and the operation of the whole gas making process is stable and reliable.
Drawings
The present invention will be further described with reference to the accompanying drawings and the following detailed description.
Fig. 1 is the schematic view of the device for processing the temperature swing adsorption impurity removal regeneration gas.
Reference numbers in the figures: 1. pressure reducing valve, 2, trip valve, 3, check valve.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that, as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the indicated orientation or positional relationship thereof is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, but does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" as appearing herein are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, 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. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Examples
When treating coke oven gas temperature swing adsorption impurity removal regeneration gas in a process for manufacturing ethylene glycol, mixing the temperature swing adsorption impurity removal regeneration gas from a first regeneration gas pipeline and a second regeneration gas pipeline, mixing the mixed regeneration gas with the regeneration gas output from a regeneration gas pipeline of a pressure swing adsorption carbon monoxide separation technology, introducing the mixed regeneration gas into a regeneration gas input main pipe with the model number of DN300, wherein the rear part of the regeneration gas input main pipe comprises a branch pipeline: the device comprises a torch emptying header pipe, an incinerator header pipe and a sulfur-containing gas pipeline group. Wherein, the main pipe of the incinerator is provided with two stop valves, and the other end of the pipeline is communicated with the incinerator. The front ends of the torch emptying header pipe and the sulfur-containing gas pipeline group are provided with a first stop valve, then the other end of the torch emptying header pipe also comprises branch pipelines, one torch header pipe is used for circulating air, and the other impurity removing process is used for purifying gas in the main circulation impurity removing process and discharging the purified gas out of the room.
The sulfur-containing gas pipeline group comprises a first pipeline with the model number of DN350 and concentric reducing pipes with the model number of DN300-350, the length of the first pipeline is about 1900 m, the first pipeline is connected with the regeneration gas input main pipe through the concentric reducing pipes, a second stop valve, a pressure reducing valve 1, a stop valve 2 and a check valve 3 are sequentially arranged in the middle of the first pipeline, and the nominal pressure grade of the valve is PN150 LB. Wherein the pressure reducing valve 1 can reduce the pressure of the gas discharged from the regeneration gas input pipeline to 20KPa and then input the gas backwards; the check valve 3 automatically works to block the backflow of the regeneration gas in the pipeline; the second stop valve and the check valve 3 are combined for use, so that the gas in the pipeline can be safely isolated; in addition, the blind plate valve and the stop valve arranged on the first pipeline can cut off the circulation of gas media, so that the sulfur-free gas is controlled to continuously flow into the sintering process, different types of regeneration gas are fully utilized, and the sulfur-containing regeneration gas is ensured to be stably and safely conveyed after entering the first pipeline until the tail end of the first pipeline is connected with a blast furnace gas main pipe and is jointly used as fuel gas to be input into a fuel gas inlet of the sintering process for sintering. Therefore, the incineration of the sulfur-containing gas in the incinerator is controlled under the condition of small structural change, the service life of a machine is prolonged, and the running state of the incinerator is obviously improved while the environment is protected.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled 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 and substitutions do not depart from the spirit and scope of the embodiments of the present invention.
Claims (6)
1. A device for processing temperature swing adsorption impurity removal regenerated gas comprises a temperature swing adsorption impurity removal process regenerated gas pipeline, a pressure swing adsorption carbon monoxide separation technology regenerated gas pipeline, a torch emptying header pipe, a blast furnace gas header pipe and an incinerator header pipe, wherein the temperature swing adsorption impurity removal process regenerated gas pipeline and the pressure swing adsorption carbon monoxide separation technology regenerated gas pipeline are combined into a regenerated gas input header pipe and are respectively communicated with the incinerator header pipe and the torch emptying header pipe; the method is characterized in that: the device comprises a regeneration gas input main pipe, a sulfur-containing gas pipeline set, a pressure reducing valve, a stop valve and a check valve, wherein the sulfur-containing gas pipeline set comprises a first pipeline and a concentric reducing pipe, one end of the concentric reducing pipe is connected with the regeneration gas input main pipe, and the other end of the concentric reducing pipe is connected with the first pipeline; the other end of the first pipeline is connected with a blast furnace gas main pipe and leads to a fuel gas inlet of a sintering process; the pressure reducing valve is installed on a first pipeline behind the stop valve, and the stop valve is arranged between the pressure reducing valve and the check valve.
2. The apparatus for treating temperature swing adsorption impurity removal regeneration gas according to claim 1, wherein: and a first stop valve is arranged at the tail end of the regeneration gas input main pipe, and a second stop valve is installed at the front end of the first pipeline.
3. The apparatus for treating temperature swing adsorption impurity removal regeneration gas according to claim 1, wherein: and the regenerated gas of the temperature swing adsorption impurity removal process, the rear end of the flare emptying main pipe and the pipeline incinerator main pipe are respectively provided with a plurality of stop valves.
4. The apparatus for treating temperature swing adsorption impurity removal regeneration gas according to claim 1, wherein: the first pipeline also comprises a blind plate valve.
5. The apparatus for treating temperature swing adsorption impurity removal regeneration gas according to claim 2 or 3, wherein: the pressure reducing valve, the stop valve and the check valve are in threaded connection with the pipeline.
6. The apparatus for treating temperature swing adsorption impurity removal regeneration gas according to claim 1, wherein: and a torch main pipe and a purified gas main pipe in the impurity removal process are also arranged behind the torch emptying main pipe communicated with the regenerated gas input main pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023301106.5U CN214307142U (en) | 2020-12-31 | 2020-12-31 | Device for treating temperature swing adsorption impurity removal regenerated gas |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202023301106.5U CN214307142U (en) | 2020-12-31 | 2020-12-31 | Device for treating temperature swing adsorption impurity removal regenerated gas |
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| CN214307142U true CN214307142U (en) | 2021-09-28 |
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| CN202023301106.5U Active CN214307142U (en) | 2020-12-31 | 2020-12-31 | Device for treating temperature swing adsorption impurity removal regenerated gas |
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