CN218686464U - Novel adjustment system of coal system ethylene glycol extractant - Google Patents
Novel adjustment system of coal system ethylene glycol extractant Download PDFInfo
- Publication number
- CN218686464U CN218686464U CN202222560184.XU CN202222560184U CN218686464U CN 218686464 U CN218686464 U CN 218686464U CN 202222560184 U CN202222560184 U CN 202222560184U CN 218686464 U CN218686464 U CN 218686464U
- Authority
- CN
- China
- Prior art keywords
- tower
- degreasing
- dealcoholization
- pipe
- communicated
- 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 novel adjusting system of coal-based glycol extractant, which comprises a dealcoholization tower, a degreasing tower, a rectifying tower and an extractant storage tank, wherein the dealcoholization tower, the degreasing tower and the rectifying tower are communicated in sequence; the dealcoholization tower is connected in series and communicated with a dealcoholization tower reflux tank to form a circulation loop, the degreasing tower is connected in series and communicated with a degreasing tower reflux tank I and a degreasing tower reflux tank II to form a circulation loop, and the rectification tower is connected in series and communicated with a rectification tower reflux tank to form a circulation loop; the extractant storage tank is communicated with a filling main pipe, a filling pump is arranged on the filling main pipe, and a filling branch pipe I, a filling branch pipe II and a filling branch pipe III are connected to the filling main pipe in parallel; the second filling branch pipe is communicated with the middle part of the degreasing tower, and the third filling branch pipe is communicated with the middle part of the rectifying tower. The utility model discloses select the easy enrichment region of material that three departments influence the luminousness as the injection point of extractant, make the performance that the extractant can the maximize to minimum dose satisfies output index requirement, increases system yield.
Description
Technical Field
The utility model relates to a coal system ethylene glycol rectification system technical field especially relates to a novel adjustment system of coal system ethylene glycol extractant.
Background
In a coal-to-ethylene glycol rectification system, multiple processes such as dealcoholization, deesterification, product rectification and the like are required to prepare ethylene glycol.
The light transmittance of the ethylene glycol is an important index for evaluating the quality of the ethylene glycol, and factors influencing the light transmittance of the ethylene glycol are many, and trace impurities such as esters and aldehydes accompanying in a rectification system are one of the factors influencing the light transmittance. Therefore, in order to improve the quality of the ethylene glycol, an extracting agent needs to be added into the system, and the extracting agent is used for effectively extracting substances which are enriched in the system and influence the light transmittance, so that the light transmittance qualified rate of the ethylene glycol is improved.
The existing extractant adding pipeline of the unit is single, the extractant is only added into a tower kettle, the effect of the extractant cannot be effectively exerted, and more adjusting means are lacked.
Disclosure of Invention
The utility model discloses a solve current extractant and add the problem that the pipeline is single so that the unable full play of extractant effect provides a novel adjustment system of coal system ethylene glycol extractant, selects the injection point of several easy enrichment regions of material as the extractant that influence the luminousness according to the actual production situation, makes the performance that the extractant can the maximize.
In order to achieve the above purpose, the utility model adopts the technical scheme that:
a novel adjusting system for a coal-to-ethylene glycol extractant comprises a dealcoholization tower, a degreasing tower, a rectifying tower and an extractant storage tank, wherein the dealcoholization tower, the degreasing tower and the rectifying tower are communicated with one another through pipelines in sequence;
the dealcoholization tower is connected in series and communicated with a dealcoholization tower reflux tank to form a circulation loop, the degreasing tower is connected in series and communicated with a degreasing tower reflux tank I and a degreasing tower reflux tank II to form a circulation loop, and the rectification tower is connected in series and communicated with a rectification tower reflux tank to form a circulation loop;
the extraction agent storage tank is communicated with a filling main pipe, a filling pump is arranged on the filling main pipe, and a filling branch pipe I, a filling branch pipe II and a filling branch pipe III are communicated with the filling main pipe in parallel;
the first filling branch pipe is communicated with the upper part of the dealcoholization tower, the second filling branch pipe is communicated with the middle part of the degreasing tower, the third filling branch pipe is communicated with the middle part of the rectification tower, and the first filling branch pipe, the second filling branch pipe and the third filling branch pipe are respectively provided with a stop valve and an adjusting valve, so that the control of each filling branch pipe is facilitated.
Furthermore, a dealcoholization discharging pipe is arranged between the dealcoholization tower and the degreasing tower to be communicated, two ends of the dealcoholization discharging pipe are respectively connected with the bottom of the dealcoholization tower and the middle of the degreasing tower, and a dealcoholization tower kettle pump is arranged on the dealcoholization discharging pipe to facilitate the material to flow into the degreasing tower through the dealcoholization discharging pipe.
And further, the second filling branch pipe is communicated with the middle part of the degreasing tower through a dealcoholization discharging pipe.
Further, be provided with the degrease discharging pipe in order to communicate between degrease tower and the rectifying column, degrease bottom and rectifying column middle part are connected respectively to degrease discharging pipe both ends, are provided with degrease tower cauldron pump on the degrease discharging pipe, and the material of being convenient for is through degrease discharging pipe and rectifying column intercommunication.
And further, the third filling branch pipe is communicated with the middle part of the rectifying tower through a degreasing discharge pipe.
Furthermore, the top of the dealcoholization tower is communicated with an inlet of a dealcoholization tower reflux tank, an outlet of the dealcoholization tower reflux tank is communicated with a dealcoholization reflux pipe arranged at the upper part of the dealcoholization tower, and the dealcoholization reflux pipe is provided with a dealcoholization reflux pump so as to facilitate the flow of materials in the dealcoholization reflux pipe; and the first filling branch pipe is communicated with the upper part of the dealcoholization tower through a dealcoholization return pipe.
Furthermore, the top of the degreasing tower is connected with inlets of a first degreasing tower reflux tank and a second degreasing tower reflux tank in parallel, a first degreasing reflux pipe is arranged between an outlet of the first degreasing tower reflux tank and the upper part of the degreasing tower to be communicated, and a second degreasing reflux pipe is arranged between an outlet of the second degreasing tower reflux tank and the first degreasing tower reflux tank to be communicated; and the degreasing reflux pipe I and the degreasing reflux pipe II are both provided with degreasing reflux pumps.
Further, rectifying column top and rectifying column reflux tank entry intercommunication, rectifying column reflux tank export and rectifying column upper portion are provided with the rectification back flow in order to communicate, be provided with the rectification backwash pump on the rectification back flow, be convenient for realize the flow of material in the rectification back flow.
Through the technical scheme, the beneficial effects of the utility model are that:
the utility model relates to a rationally, change and adjust according to material component in each tower cauldron, select three easy enrichment regions of material that influence the luminousness as the injection point of extractant, make the performance that the extractant can the maximize, also can effectively reduce the use dosage of extractant. Substances which are enriched in each tower kettle and influence the light transmittance are effectively extracted through the extracting agent, the adjustment of the light transmittance of the product can be met in the shortest time, the glycol product with better light transmittance can be obtained, and the operation mode of greatly reducing the product yield after the quality of the product is poor due to system fluctuation is reduced, so that the cost is greatly saved. The utility model is suitable for a use when adding the auxiliary agent in the coal system ethylene glycol rectification system, can satisfy the various feeding methods in the system, be favorable to the yield of ethylene glycol and the adjustment of quality more.
Drawings
Fig. 1 is a process flow diagram of a novel adjustment system of the coal-to-ethylene glycol extractant.
Fig. 2 is a schematic view of a first filling branch pipe and a second filling branch pipe in fig. 1 of the present invention.
Fig. 3 is a schematic view of the filling branch pipe in fig. 1 according to the present invention.
The reference numbers in the drawings are as follows: the system comprises a dealcoholization tower 1, a degreasing tower 2, a rectification tower 3, an extractant storage tank 4, a dealcoholization discharging pipe 5, a dealcoholization tower kettle pump 6, a degreasing discharging pipe 7, a degreasing tower kettle pump 8, a dealcoholization tower reflux tank 9, a dealcoholization reflux pipe 10, a dealcoholization reflux pump 11, a degreasing tower reflux tank I12, a degreasing tower reflux tank II 13, a degreasing reflux pipe I14, a degreasing reflux pipe II 15, a degreasing reflux pump 16, a rectification tower reflux tank 17, a rectification reflux pipe 18, a rectification reflux pump 19, a main filling pipe 20, a branch filling pipe I21, a branch filling pipe II 22, a branch filling pipe III 23, a stop valve 24, a regulating valve 25 and a filling pump 26.
Detailed Description
The following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings:
as shown in fig. 1 to 3, a novel adjustment system for an extraction agent for ethylene glycol prepared from coal comprises a dealcoholization tower 1, a degreasing tower 2, a rectification tower 3 and an extraction agent storage tank 4, wherein the dealcoholization tower 1, the degreasing tower 2 and the rectification tower 3 are communicated with one another through pipelines in sequence.
In order to communicate the dealcoholization tower 1 and the degreasing tower 2, a dealcoholization discharge pipe 5 is provided between the dealcoholization tower 1 and the degreasing tower 2 for communicating the dealcoholization tower 1 and the degreasing tower 2. Two ends of a dealcoholization discharging pipe 5 are respectively connected with the bottom of the dealcoholization tower 1 and the middle of the degreasing tower 2, and a dealcoholization tower kettle pump 6 is arranged on the dealcoholization discharging pipe 5.
In order to communicate the degreasing tower 2 with the rectifying tower 3, a degreasing discharge pipe 7 is arranged between the degreasing tower 2 and the rectifying tower 3 for communicating the degreasing tower 2 with the rectifying tower 3. Two ends of a degreasing discharging pipe 7 are respectively connected with the bottom of the degreasing tower 2 and the middle of the rectifying tower 3, and a degreasing tower kettle pump 8 is arranged on the degreasing discharging pipe 7.
The dealcoholization tower 1 is connected in series and communicated with a dealcoholization tower reflux tank 9 to form a circulation loop. Specifically, the top of the dealcoholization tower 1 is communicated with an inlet of a dealcoholization tower reflux tank 9, an outlet of the dealcoholization tower reflux tank 9 is communicated with a dealcoholization reflux pipe 10 arranged at the upper part of the dealcoholization tower 1, and a dealcoholization reflux pump 11 is arranged on the dealcoholization reflux pipe 10.
The degreasing tower 2 is connected in series and communicated with a degreasing tower reflux tank I12 and a degreasing tower reflux tank II 13 to form a circulation loop. Specifically, the top of the degreasing tower 2 is connected with the inlets of a first degreasing tower reflux tank 12 and a second degreasing tower reflux tank 13 in parallel, a first degreasing reflux pipe 14 is arranged between the outlet of the first degreasing tower reflux tank 12 and the upper part of the degreasing tower 2 to be communicated, and a second degreasing reflux pipe 15 is arranged between the outlet of the second degreasing tower reflux tank 13 and the first degreasing tower reflux tank 12 to be communicated. A degreasing reflux pump 16 is arranged on each of the degreasing reflux pipe I14 and the degreasing reflux pipe II 15.
The rectifying tower 3 is connected in series and communicated with a rectifying tower reflux tank 17 to form a circulation loop. Specifically, the top of the rectifying tower 3 is communicated with an inlet of a reflux tank 17 of the rectifying tower, an outlet of the reflux tank 17 of the rectifying tower is communicated with a rectifying reflux pipe 18 arranged at the upper part of the rectifying tower 3, and a rectifying reflux pump 19 is arranged on the rectifying reflux pipe 18.
In this embodiment, the extractant storage tank 4 is used for storing an extractant, the extractant storage tank 4 is communicated with a main filling pipe 20, a filling pump 26 is arranged on the main filling pipe 20, and the filling pump 26 can pump the extractant in the extractant storage tank 4 into the main filling pipe 20.
The main filling pipe 20 is communicated with a first filling branch pipe 21, a second filling branch pipe 22 and a third filling branch pipe 23 in parallel, and then three extractant filling pipelines are formed. The extractant pumped into the main filling pipe 20 is divided into three parts which are respectively led into a first filling branch pipe 21, a second filling branch pipe 22 and a third filling branch pipe 23.
The first filling branch pipe 21 is communicated with the upper part of the dealcoholization tower 1, namely the first filling branch pipe 21 is communicated with the dealcoholization return pipe 10, and the first filling branch pipe 21 is communicated with the upper part of the dealcoholization tower 1 through the dealcoholization return pipe 10. The extractant is sent to the upper part of the dealcoholization tower 1 through a first filling branch pipe 21 and a dealcoholization return pipe 10, and substances influencing the light transmittance of the finished product are extracted from the upper part of the dealcoholization tower by utilizing the sufficient vapor-liquid exchange of the extractant and materials on the upper part of the dealcoholization tower 1 and are discharged from a system through a return tank 9 of the dealcoholization tower.
The second filling branch pipe 22 is communicated with the middle part of the degreasing tower 2, namely the second filling branch pipe 22 is communicated with the dealcoholization discharging pipe 5, and the second filling branch pipe 22 is communicated with the middle part of the degreasing tower 2 through the dealcoholization discharging pipe 5. The second filling branch pipe 22 and the dealcoholization discharging pipe 5 are used for conveying the extracting agent to the middle part of the degreasing tower 2, a bubble point feeding mode is adopted, the extracting agent is convenient to be fully dissolved with the materials in the middle section of the degreasing tower 2, and substances influencing the light transmittance are discharged out of the system through a reflux tank of the degreasing tower.
The third filling branch pipe 23 is communicated with the middle part of the rectifying tower 3, namely the third filling branch pipe 23 is communicated with the degreasing discharge pipe 7, and the third filling branch pipe 23 is communicated with the middle part of the rectifying tower 3 through the degreasing discharge pipe 7. The extractant is sent to the middle part of the rectifying tower 3 through the third filling branch pipe 23 and the degreasing discharge pipe 7, and the extractant participates in heat energy exchange in the rectifying tower 3 in a bubble point feeding mode, so that substances which are enriched in the rectifying tower 3 and affect the light transmittance are extracted and discharged out of the rectifying tower 3.
The first filling branch pipe 21, the second filling branch pipe 22 and the third filling branch pipe 23 are respectively provided with a stop valve 24 and an adjusting valve 25, so that the on-off and flow regulation of corresponding extractant filling pipelines can be conveniently controlled.
The utility model discloses synthesize all kinds of data at the design stage, calculate relative volatility, the azeotropic condition of each material in the coal system ethylene glycol rectification system, to several luminousness indexes's requirement, the easy enrichment area of material that influences the luminousness of pertinence is selected as the injection point of extractant to the pertinence, makes the play effect that the extractant can the maximize to minimum dose satisfies the output index requirement, accomplishes the adjustment of luminousness fast, increases the system yield.
The above-mentioned embodiments are merely preferred embodiments of the present invention, and not intended to limit the scope of the present invention, so that equivalent changes or modifications made by the structure, features and principles of the present invention should be included in the claims of the present invention.
Claims (8)
1. A novel adjusting system for a coal-to-ethylene glycol extractant comprises a dealcoholization tower (1), a degreasing tower (2), a rectifying tower (3) and an extractant storage tank (4), and is characterized in that the dealcoholization tower (1), the degreasing tower (2) and the rectifying tower (3) are communicated in sequence through pipelines;
the dealcoholization tower (1) is connected in series and communicated with a dealcoholization tower reflux tank (9) to form a circulation loop, the degreasing tower (2) is connected in series and communicated with a degreasing tower reflux tank I (12) and a degreasing tower reflux tank II (13) to form a circulation loop, and the rectifying tower (3) is connected in series and communicated with a rectifying tower reflux tank (17) to form a circulation loop;
the extractant storage tank (4) is communicated with a filling main pipe (20), a filling pump (26) is arranged on the filling main pipe (20), and a filling branch pipe I (21), a filling branch pipe II (22) and a filling branch pipe III (23) are communicated in parallel with the filling main pipe (20);
the device is characterized in that the first filling branch pipe (21) is communicated with the upper part of the dealcoholization tower (1), the second filling branch pipe (22) is communicated with the middle part of the degreasing tower (2), the third filling branch pipe (23) is communicated with the middle part of the rectifying tower (3), and the first filling branch pipe (21), the second filling branch pipe (22) and the third filling branch pipe (23) are provided with stop valves (24) and regulating valves (25).
2. The novel adjustment system of the coal-to-ethylene glycol extractant according to claim 1, wherein a dealcoholization discharging pipe (5) is arranged between the dealcoholization tower (1) and the degreasing tower (2) for communication, both ends of the dealcoholization discharging pipe (5) are respectively connected to the bottom of the dealcoholization tower (1) and the middle of the degreasing tower (2), and a dealcoholization kettle pump (6) is arranged on the dealcoholization discharging pipe (5).
3. The novel adjusting system of the coal-to-ethylene glycol extractant according to claim 2, characterized in that the second filling branch pipe (22) is communicated with the middle part of the degreasing tower (2) through a dealcoholization discharging pipe (5).
4. The novel adjustment system for the coal glycol extractant according to claim 1, wherein a degreasing discharge pipe (7) is arranged between the degreasing tower (2) and the rectification tower (3) to communicate with each other, two ends of the degreasing discharge pipe (7) are respectively connected to the bottom of the degreasing tower (2) and the middle of the rectification tower (3), and a degreasing tower kettle pump (8) is arranged on the degreasing discharge pipe (7).
5. The novel adjustment system for the coal-to-ethylene glycol extractant according to claim 4, wherein the third filling branch pipe (23) is communicated with the middle part of the rectifying tower (3) through a degreasing discharge pipe (7).
6. The novel adjusting system of the coal-to-glycol extractant according to claim 1, wherein the top of the dealcoholization tower (1) is communicated with the inlet of a dealcoholization tower reflux tank (9), the outlet of the dealcoholization tower reflux tank (9) is communicated with a dealcoholization reflux pipe (10) arranged at the upper part of the dealcoholization tower (1), and the dealcoholization reflux pipe (10) is provided with a dealcoholization reflux pump (11);
the first filling branch pipe (21) is communicated with the upper part of the dealcoholization tower (1) through a dealcoholization return pipe (10).
7. The novel adjusting system for the coal-to-ethylene glycol extractant as recited in claim 1, wherein the top of the degreasing tower (2) is connected in parallel with inlets of a first degreasing tower reflux tank (12) and a second degreasing tower reflux tank (13), a first degreasing reflux pipe (14) is arranged between an outlet of the first degreasing tower reflux tank (12) and the upper part of the degreasing tower (2) for communication, and a second degreasing reflux pipe (15) is arranged between an outlet of the second degreasing tower reflux tank (13) and the first degreasing tower reflux tank (12) for communication;
and the degreasing reflux pipe I (14) and the degreasing reflux pipe II (15) are respectively provided with a degreasing reflux pump (16).
8. The novel adjusting system for the coal-to-ethylene glycol extractant as recited in claim 1, wherein the top of the rectification column (3) is communicated with the inlet of the rectification column reflux tank (17), the outlet of the rectification column reflux tank (17) is communicated with the rectification reflux pipe (18) arranged at the upper part of the rectification column (3), and the rectification reflux pipe (18) is provided with the rectification reflux pump (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222560184.XU CN218686464U (en) | 2022-09-27 | 2022-09-27 | Novel adjustment system of coal system ethylene glycol extractant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222560184.XU CN218686464U (en) | 2022-09-27 | 2022-09-27 | Novel adjustment system of coal system ethylene glycol extractant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218686464U true CN218686464U (en) | 2023-03-24 |
Family
ID=85637357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222560184.XU Active CN218686464U (en) | 2022-09-27 | 2022-09-27 | Novel adjustment system of coal system ethylene glycol extractant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218686464U (en) |
-
2022
- 2022-09-27 CN CN202222560184.XU patent/CN218686464U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108564210A (en) | Cooling water recirculation system resistance optimization adjustment method | |
| CN218686464U (en) | Novel adjustment system of coal system ethylene glycol extractant | |
| CN102320982B (en) | Method for producing o-nitroaniline by multiple series-connected kettles | |
| CN105964008A (en) | High-purity vinyl acetate separating system | |
| CN205412943U (en) | A formaldehyde circulating tower adds alkali system for production of 1, 4 - butanediol | |
| CN202032552U (en) | Steam pressure stabilizer | |
| CN207031299U (en) | Isooctane device recycle isobutane optimizes system | |
| CN204840984U (en) | Rectifying device | |
| CN214332332U (en) | Double-pump multistage multi-path medicament precise adjustment injection device | |
| CN103897760A (en) | Marsh gas purification system | |
| CN112547138A (en) | Sugar alcohol ion exchange system and method | |
| CN215712122U (en) | Two-stage reverse osmosis water purifier | |
| CN207024670U (en) | A kind of multistage fractionating device | |
| CN201990657U (en) | Alcohol distillation tower with backflow division device | |
| CN219355269U (en) | PTA dehydration tower device capable of improving energy efficiency | |
| CN205893172U (en) | Oil LNG gasifaction fractional distillation apparatus | |
| CN210826357U (en) | Return flow type passivation tank filter | |
| CN218795774U (en) | Chloroacetic acid preparation system | |
| CN204522353U (en) | The adjustable methyl alcohol rectifier of output | |
| CN204727713U (en) | A kind of ammonia still process raw material ammonia water filtration, purification system | |
| CN204496189U (en) | A kind of water purifier control circuit board | |
| CN212865235U (en) | Down washing charger | |
| CN210440126U (en) | Multistage sectional loading oil supply system of small gas turbine | |
| CN205127446U (en) | Multistage iodine crystallization device that uses together | |
| CN114949896B (en) | Heat energy utilization device and heat energy utilization method for solution polymerized styrene-butadiene rubber rectification system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |