CN218485196U - Methyl ethyl carbonate production waste gas recycle device - Google Patents
Methyl ethyl carbonate production waste gas recycle device Download PDFInfo
- Publication number
- CN218485196U CN218485196U CN202222800129.3U CN202222800129U CN218485196U CN 218485196 U CN218485196 U CN 218485196U CN 202222800129 U CN202222800129 U CN 202222800129U CN 218485196 U CN218485196 U CN 218485196U
- Authority
- CN
- China
- Prior art keywords
- tower
- pipeline
- waste gas
- recovery tower
- material recovery
- 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
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The utility model relates to a methyl ethyl carbonate waste gas recovery utilizes device. The technical scheme is as follows: the top of the ethyl methyl carbonate rectifying tower is also provided with a breather valve, the breather valve is connected to a material recovery tower through a pipeline, the upper end of the material recovery tower is sequentially connected with a primary condenser and a secondary condenser through pipelines, and the outlet of the secondary condenser is connected to a reflux tank; the bottom of the material recovery tower is connected to a recovered material storage tank through a tower kettle pump and a pipeline. The beneficial effects are that: the utility model discharges light component waste gas through the top of the tower through the recovery of the material recovery tower, and the light component waste gas is sent into the reflux tank after passing through the first-stage condenser and the second-stage condenser; the reflux tank body and a tower kettle of the material recovery tower are connected with an overflow pipeline, the material enters the waste gas recovery tower kettle through the overflow pipeline, and the overflow pipeline is provided with a U-shaped bent pipe to avoid gas cross connection; finally, the recovered materials are conveyed to a recovered material storage tank through a tower kettle pump of the material recovery tower, so that the environmental pollution is reduced, and the production benefit is improved.
Description
Technical Field
The utility model relates to a methyl ethyl carbonate preparation facilities, in particular to methyl ethyl carbonate waste gas recycle device.
Background
Ethyl Methyl Carbonate (EMC) is a high-tech, high-added-value chemical product that has emerged in recent years, is an excellent lithium ion battery electrolyte material, and extends out with the increase in the yields of dimethyl carbonate and lithium ion batteries, because of the lower melting point, the lower limit of the electrolyte temperature is expanded; in addition, EMC has the characteristics of DMC and DEC, namely good solubility, high dielectric constant and good low-temperature performance, can effectively improve the energy density and the discharge capacity of the lithium battery, prolongs the service life of the battery, and becomes an excellent choice in a chain-shaped carbonate solvent. It is also used in the fields of specialty perfumes and intermediates because it possesses both methyl and ethyl groups. In recent years, the rapid and vigorous development of downstream markets of lithium batteries such as new energy automobiles and the like drives the output of lithium battery electrolyte to increase suddenly, the demand on battery-grade ethyl methyl carbonate and diethyl carbonate is increased day by day, and the ethyl methyl carbonate and the diethyl carbonate are in the field of electrolyte materials. Because the production condition of ethyl methyl carbonate is the ordinary pressure, consequently all be equipped with the breather valve at top of the tower and reflux drum, when the pressure was too high, top of the tower gas-phase material passed through top of the tower breather valve pressure release, and the material of pressure release can not obtain good recovery and makes, causes the waste and the environmental pollution of raw materials.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a methyl ethyl carbonate waste gas recycle device to the above-mentioned defect that prior art exists for waste gas comes out the back from the breather valve of rectifying column, directly gets into the material recovery tower, and heavy ends waste gas obtains retrieving in the material recovery tower, and light ends waste gas further retrieves through the condensation of two-stage condensation gas, has reduced environmental pollution, has improved the productivity effect.
The utility model provides a methyl ethyl carbonate process gas recycle device, its technical scheme is: the device comprises a methyl ethyl carbonate rectifying tower (1), a first cooler (2), a first deep cooler (3), a light component storage tank (4), a second cooler (5), a second deep cooler (6) and a heavy component storage tank (7), wherein the upper end of the methyl ethyl carbonate rectifying tower (1) is connected with the light component storage tank (4) through the first cooler (2) and the first deep cooler (3) in sequence through pipelines, the lateral line of the methyl ethyl carbonate rectifying tower (1) is connected with the heavy component storage tank (7) through the second cooler (5) and the second deep cooler (6) in sequence through pipelines, the device further comprises a material recovery tower (8), a primary condenser (9), a secondary condenser (10), a reflux tank (11), a tower kettle pump (13) and a recovered material storage tank (16), the top of the methyl ethyl carbonate rectifying tower (1) is further provided with a breather valve (1.2), the breather valve (1.2) is connected to the material recovery tower (8) through a pipeline, the upper end of the material recovery tower (8) is connected with the primary condenser (10) in sequence through the pipeline, and an outlet of the secondary condenser (10); the bottom of the material recovery tower (8) is connected to a recovered material storage tank (16) through a tower kettle pump (13) and a pipeline.
Preferably, the lower outlet of the reflux tank (11) is connected to the upper part of the material recovery tower (8) through a reflux pump (12) and a reflux line (15).
Preferably, one side of the reflux drum (11) is connected to the lower side of the material recovery tower (8) through an overflow line (14).
Preferably, the overflow line (14) is provided with a U-shaped elbow (14.1).
Preferably, the upper end of the material recovery tower (8) is connected with a tube side inlet of a first-stage condenser (9) through a pipeline, a tube side outlet of the first-stage condenser (9) is connected with a tube side inlet of a second-stage condenser (10) through a pipeline, and a tube side outlet of the second-stage condenser (10) is connected with a reflux tank (11) through a pipeline.
Preferably, a shell pass inlet and a tube pass outlet of the primary condenser (9) are connected with normal-temperature circulating water, a shell pass inlet of the secondary condenser (10) is connected with chilled water, and the temperature of the chilled water is 20 ℃ below zero.
Preferably, a reboiler (1.1) is provided at the lower end of the ethyl methyl carbonate rectifying column (1).
The utility model has the advantages that: the utility model has the advantages that the material recovery tower is connected on the breather valve of the ethyl methyl carbonate rectifying tower, and light component waste gas is discharged from the top of the tower through the recovery of the material recovery tower and is sent into the reflux tank after passing through the primary condenser and the secondary condenser; the reflux tank body and a tower kettle of the material recovery tower are connected with an overflow pipeline, the material enters the waste gas recovery tower kettle through the overflow pipeline, and the overflow pipeline is provided with a U-shaped bent pipe to avoid gas cross connection; the material of final recovery is sent to the recovery material storage tank outside the tower cauldron pump of material recovery tower, the utility model discloses a realized that waste gas comes out the back from the breather valve of rectifying column, directly gets into the material recovery tower, heavy component waste gas obtains retrieving in the material recovery tower, and light component waste gas further retrieves through the condensation of two-stage condensation gas, has reduced environmental pollution, has improved the productivity effect.
Drawings
Fig. 1 is a schematic connection diagram of embodiment 1 of the present invention;
fig. 2 is a schematic connection diagram of embodiment 2 of the present invention;
in the upper diagram: ethyl methyl carbonate rectifying column 1, first cooler 2, first deep cooler 3, light component storage tank 4, second cooler 5, second deep cooler 6, heavy component storage tank 7, material recovery tower 8, first-stage condenser 9, second-stage condenser 10, reflux tank 11, reflux pump 12, tower kettle pump 13, overflow line 14, reflux line 15, recovered material storage tank 16, reboiler 1.1, breather valve 1.2, U-shaped return bend 14.1.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
The lower outlet of the reflux tank 11 is connected to the upper part of the material recovery tower 8 through a reflux pump 12 and a reflux pipeline 15; one side of the above-mentioned reflux drum 11 is connected to the lower side of the material-recovering tower 8 through an overflow line 14, and the overflow line 14 may be provided with a bent structure.
The upper end of the material recovery tower 8 is connected with a tube side inlet of a first-stage condenser 9 through a pipeline, a tube side outlet of the first-stage condenser 9 is connected with a tube side inlet of a second-stage condenser 10 through a pipeline, and a tube side outlet of the second-stage condenser 10 is connected with a reflux tank 11 through a pipeline.
The shell pass inlet and the tube pass outlet of the primary condenser 9 are connected with normal-temperature circulating water, the shell pass inlet of the secondary condenser 10 is connected with chilled water, the temperature of the chilled water is 20 ℃ below zero, and the secondary condenser 10 adopts a spiral tube type, so that the heat exchange effect is improved.
A reboiler 1.1 is provided at the lower end of the ethyl methyl carbonate rectifying column 1 to facilitate heating of the ethyl methyl carbonate rectifying column 1.
When the utility model is used, crude ethyl methyl carbonate generated by the reaction in the preorder section is sent into the ethyl methyl carbonate rectifying tower, the material recovery tower is connected on the breather valve of the ethyl methyl carbonate rectifying tower through a pipeline, and light component waste gas is discharged from the top of the material recovery tower and sent into the reflux tank after passing through the primary condenser and the secondary condenser; the reflux tank body and a tower kettle of the material recovery tower are connected with an overflow pipeline, the material enters the waste gas recovery tower kettle through the overflow pipeline, and the overflow pipeline is provided with a U-shaped bent pipe to avoid gas cross connection; the material of final recovery is sent to the recovery material storage tank outside the tower cauldron pump of material recovery tower, the utility model discloses a realized that waste gas comes out the back from the breather valve of rectifying column, directly gets into the material recovery tower, heavy component waste gas obtains retrieving in the material recovery tower, and light component waste gas further retrieves through the condensation of two-stage condensation gas, has reduced environmental pollution, has improved the productivity effect.
The difference from the embodiment 1 is that:
the overflow line 14 of this embodiment 1 is provided with a U-bend 14.1 to avoid gas cross-flow.
The above description is only a preferred embodiment of the present invention, and any person skilled in the art may modify the present invention or modify it into an equivalent technical solution by using the technical solutions described above. Therefore, any simple modifications or equivalent changes made according to the technical solution of the present invention belong to the scope of the present invention as far as possible.
Claims (7)
1. The utility model provides a methyl ethyl carbonate waste gas recycle device, includes methyl ethyl carbonate rectifying column (1), first cooler (2), first deep cooler (3), light component storage tank (4), second cooler (5), second deep cooler (6), heavy ends storage tank (7), the upper end of methyl ethyl carbonate rectifying column (1) is through pipeline first cooler (2) and first deep cooler (3) connection light component storage tank (4) in proper order, and the side line of methyl ethyl carbonate rectifying column (1) is through pipeline second cooler (5) and second deep cooler (6) connection heavy ends storage tank (7) in proper order, characterized by: the device is characterized by further comprising a material recovery tower (8), a first-stage condenser (9), a second-stage condenser (10), a reflux tank (11), a tower kettle pump (13) and a recovered material storage tank (16), wherein a breather valve (1.2) is further arranged at the top of the ethyl methyl carbonate rectifying tower (1), the breather valve (1.2) is connected to the material recovery tower (8) through a pipeline, the upper end of the material recovery tower (8) is sequentially connected with the first-stage condenser (9) and the second-stage condenser (10) through pipelines, and an outlet of the second-stage condenser (10) is connected to the reflux tank (11); the bottom of the material recovery tower (8) is connected to a recovered material storage tank (16) through a tower kettle pump (13) and a pipeline.
2. The recycling device of the waste gas generated in the production of ethyl methyl carbonate according to claim 1, which is characterized in that: the lower outlet of the reflux tank (11) is connected to the upper part of the material recovery tower (8) through a reflux pump (12) and a reflux pipeline (15).
3. The recycling device of the waste gas generated in the production of ethyl methyl carbonate according to claim 2, which is characterized in that: one side of the reflux tank (11) is connected to the lower side of the material recovery tower (8) through an overflow line (14).
4. The recycling device of the waste gas generated in the production of ethyl methyl carbonate according to claim 3, which is characterized in that: and a U-shaped bent pipe (14.1) is arranged on the overflow pipeline (14).
5. The recycling device of the waste gas generated in the production of ethyl methyl carbonate according to claim 1, which is characterized in that: the upper end of the material recovery tower (8) is connected with a tube side inlet of a first-stage condenser (9) through a pipeline, a tube side outlet of the first-stage condenser (9) is connected with a tube side inlet of a second-stage condenser (10) through a pipeline, and a tube side outlet of the second-stage condenser (10) is connected with a reflux tank (11) through a pipeline.
6. The recycling device of the waste gas generated in the production of methyl ethyl carbonate according to claim 5, which is characterized in that: the shell pass inlet and the tube pass outlet of the primary condenser (9) are connected with normal-temperature circulating water, the shell pass inlet of the secondary condenser (10) is connected with chilled water, and the temperature of the chilled water is 20 ℃ below zero.
7. The recycling device of the waste gas generated in the production of ethyl methyl carbonate according to claim 1, which is characterized in that: the lower end of the methyl ethyl carbonate rectifying tower (1) is provided with a reboiler (1.1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222800129.3U CN218485196U (en) | 2022-10-24 | 2022-10-24 | Methyl ethyl carbonate production waste gas recycle device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222800129.3U CN218485196U (en) | 2022-10-24 | 2022-10-24 | Methyl ethyl carbonate production waste gas recycle device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218485196U true CN218485196U (en) | 2023-02-17 |
Family
ID=85194564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222800129.3U Active CN218485196U (en) | 2022-10-24 | 2022-10-24 | Methyl ethyl carbonate production waste gas recycle device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218485196U (en) |
-
2022
- 2022-10-24 CN CN202222800129.3U patent/CN218485196U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111592446A (en) | Rectification system and process for preparing ethylene glycol by dimethyl oxalate hydrogenation | |
| CN103539155B (en) | Recovery ammonia in synthesis ammonia system waste gas is utilized to utilize the method for device | |
| CN105481646A (en) | Refrigeration method for methanol synthesis and separation | |
| CN218485196U (en) | Methyl ethyl carbonate production waste gas recycle device | |
| CN215691734U (en) | Crude oil distillation device for fuel production and processing | |
| CN2863760Y (en) | Apparatus for preparation liquid sulfur trioxide from oleum | |
| CN207501713U (en) | A kind of jacketed spiral winded type condenser | |
| CN218106766U (en) | Energy recovery system for gasification black water four-stage flash evaporation | |
| CN110759821A (en) | Neopentyl glycol production raw material recovery system and recovery method thereof | |
| CN103288593B (en) | Device and method for producing sodium methoxide through recompression of mechanical steam | |
| CN209033802U (en) | A kind of pentadiene condenser system in methyl tetrahydrophthalic anhydride production | |
| CN221267160U (en) | Condensing reflux rectifying tower | |
| CN215711773U (en) | Methanol-water reforming hydrogen production cooling two-stage separation system | |
| CN115058724B (en) | Energy-saving and consumption-reducing process of coal-electricity-manganese comprehensive utilization system | |
| CN218250178U (en) | Cryogenic heat exchange device for light and heavy components of methyl ethyl carbonate | |
| CN221268068U (en) | Production system for low-pressure synthesis of methanol | |
| CN216062619U (en) | Oil absorption tower tail gas recycle device | |
| CN217067726U (en) | High-efficient rectifying and washing device for carbon dioxide purification | |
| CN209900750U (en) | Multistage condensation equipment for polyester polyol | |
| CN221016008U (en) | Solvent condensation reflux type reaction kettle for preparing polyester resin | |
| CN220317709U (en) | Heavy oil extraction device | |
| CN213609889U (en) | Multistage condenser for recovering solvent in tail gas | |
| CN210331713U (en) | Steam condensate waste heat utilization system | |
| CN209835695U (en) | Nitric acid recovery device in 5-nitrobenzimidazole ketone synthetic process | |
| CN220939145U (en) | Rectification waste heat recovery utilizes system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |