CN212017308U - Be used for coal liquifaction tail gas scrubbing tower - Google Patents
Be used for coal liquifaction tail gas scrubbing tower Download PDFInfo
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- CN212017308U CN212017308U CN202020266857.9U CN202020266857U CN212017308U CN 212017308 U CN212017308 U CN 212017308U CN 202020266857 U CN202020266857 U CN 202020266857U CN 212017308 U CN212017308 U CN 212017308U
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- washing tower
- tail gas
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Abstract
The utility model provides a be used for coal liquifaction tail gas washing tower, include: the wire mesh demister is arranged at the top of the washing tower; the bubble cap tower plate is arranged at the lower part of the wire mesh demister; a float valve tray arranged at the lower part of the bubble cap tray; the decarbonization water inlet pipe, the tail gas outlet and the pressure monitoring port are arranged at the top of the washing tower; a water inlet arranged on the side wall of the washing tower and on the upper part of the float valve tower plate; a liquid outlet arranged at the bottom of the water washing tower; a tail gas inlet arranged on the side wall of the washing tower and at the lower part of the float valve tower plate; the carbohydrate removing inlet pipe enters the water washing tower and penetrates through the wire mesh demister to the upper part of the bubble cap tower plate. The utility model discloses an increase the bubble cap column plate and introduce fresh demineralized water and carry out the fine purifiation at the washing top of the tower for oxygen-containing compound concentration greatly reduced behind the coal-based oil tail gas through the washing tower, washing tower top decarbonization water pipe passes silk screen demister and sets up the separation effect that shelters from cap protection demister, has still avoided tail gas to carry liquid, has guaranteed gaseous purity.
Description
Technical Field
The utility model belongs to the technical field of chemical machinery, have and relate to a be used for coal liquifaction tail gas washing tower.
Background
The tail gas of coal-to-liquids contains oxygen-containing compounds, and the process for washing off the oxygen-containing compounds by water washing is difficult, the prior art discloses a process for washing the oxygen-containing compounds in the synthesized tail gas by arranging float valve trays on internal parts of a water washing tower for reversely contacting the synthesized tail gas with washing water, a process for supplementing fresh water to the tower bottom and mixing with the original washing water and conveying the mixture to the tower top through a pump for reversely contacting and washing, and a process for supplementing the fresh water to the outlet of a circulating pump at the tower bottom for reversely contacting and washing, but the water washing effect of the process is not ideal.
The biggest defect of the technology is that the washing water at the top of the washing tower is not clean enough, so that the content of the oxygen-containing compound in the synthetic tail gas after washing is still higher, and the oxygen-containing compound in the synthetic tail gas is entrained into a post-system, so that the stable production of the post-system device is influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a be used for coal liquifaction tail gas scrubbing tower, synthetic tail gas passes through the utility model discloses a be used for behind the coal liquifaction tail gas scrubbing tower oxygenate concentration greatly reduced.
The utility model provides a be used for coal liquifaction tail gas washing tower, include:
the wire mesh demister is arranged at the top of the washing tower;
the bubble cap tower plate is arranged at the lower part of the wire mesh demister;
a float valve tray arranged at the lower part of the bubble cap tray;
the decarbonization water inlet pipe, the tail gas outlet and the pressure monitoring port are arranged at the top of the washing tower;
a water inlet arranged on the side wall of the washing tower and on the upper part of the float valve tower plate;
a liquid outlet arranged at the bottom of the water washing tower;
a tail gas inlet arranged on the side wall of the washing tower and at the lower part of the float valve tower plate;
the carbohydrate removing inlet pipe enters the water washing tower and penetrates through the wire mesh demister to the upper part of the bubble cap tower plate.
Preferably, the device also comprises a shielding cap arranged at the connection outlet of the carbohydrate removal inlet pipe and the wire mesh demister.
Preferably, the decarbonation water inlet pipe is a fresh water inlet port for supplying fine-scrubbed water to the bubble cap tray.
Preferably, the number of valve trays is 6; the distance between each layer of floating valve tower plates is 90-110 cm; the floating valve tower plate is obliquely arranged, and the height of the liquid enclosing of the tower plate on one side is 4-5 cm; the height of the liquid surrounding of the tower plate on one side is 7-8 cm.
Preferably, the off-gas inlet is located 40cm below the lowermost valve tray.
Preferably, the distance between the wire mesh demister and the bubble cap tower plate is 1.6-1.8 m.
Preferably, the distance between the bubble cap tower plate and the top floating valve tower plate is 1.6-1.8 m.
Preferably, the thickness of the wire mesh demister is 0.5 m.
Preferably, the pressure monitoring port is used for monitoring the pressure of the wire mesh demister.
The utility model provides a be used for coal liquifaction tail gas washing tower, include: the wire mesh demister is arranged at the top of the washing tower; the bubble cap tower plate is arranged at the lower part of the wire mesh demister; a float valve tray arranged at the lower part of the bubble cap tray; the decarbonization water inlet pipe, the tail gas outlet and the pressure monitoring port are arranged at the top of the washing tower; a water inlet arranged on the side wall of the washing tower and on the upper part of the float valve tower plate; a liquid outlet arranged at the bottom of the water washing tower; a tail gas inlet arranged on the side wall of the washing tower and at the lower part of the float valve tower plate; the carbohydrate removing inlet pipe enters the water washing tower and penetrates through the wire mesh demister to the upper part of the bubble cap tower plate. The utility model discloses an increase the bubble cap column plate and introduce fresh demineralized water and carry out the fine purifiation at the washing top of the tower for oxygen-containing compound concentration greatly reduced behind the coal-based oil tail gas through the washing tower, washing tower top decarbonization water pipe passes silk screen demister and sets up the separation effect that shelters from cap protection demister, has still avoided tail gas to carry liquid simultaneously, has guaranteed gaseous purity.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic view of the coal-to-liquid tail gas water washing tower of the utility model.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. 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.
The utility model provides a be used for coal liquifaction tail gas washing tower, include:
the wire mesh demister is arranged at the top of the washing tower;
the bubble cap tower plate is arranged at the lower part of the wire mesh demister;
a float valve tray arranged at the lower part of the bubble cap tray;
the decarbonization water inlet pipe, the tail gas outlet and the pressure monitoring port are arranged at the top of the washing tower;
a water inlet arranged on the side wall of the washing tower and on the upper part of the float valve tower plate;
a liquid outlet arranged at the bottom of the water washing tower;
a tail gas inlet arranged on the side wall of the washing tower and at the lower part of the float valve tower plate;
the carbohydrate removing inlet pipe enters the water washing tower and penetrates through the wire mesh demister to the upper part of the bubble cap tower plate.
The utility model provides a be used for coal-to-liquids tail gas scrubbing tower including set up in decarbonization water inlet pipe, tail gas export and the pressure monitoring mouth at scrubbing tower top.
Wherein, the decarbonization water import pipe is former blow-down pipe promptly, the decarbonization water import pipe is the fresh water inlet port, gives the bubble cap column plate provides the fine washing desalinized water.
The tower top is added with a tower plate and fresh desalted water is introduced for fine washing, so that the concentration of the oxygen-containing compound in the synthetic tail gas is greatly reduced after the synthetic tail gas passes through the water washing tower, and conditions are created for the smooth operation of a downstream device.
The tail gas outlet is the purified tail gas outlet.
The pressure monitoring port is used for monitoring the pressure of the wire mesh demister, and is beneficial to knowing blockage at any time for processing.
The tail gas outlet is positioned in the center, and the inlet pipe and the pressure monitoring port are respectively positioned on two sides.
The utility model provides a be used for coal liquifaction tail gas washing tower, including setting up in the silk screen demister at washing tower top.
The thickness of the silk screen demister is 0.5 m. The carbohydrate removing inlet pipe enters the water washing tower and penetrates through the wire mesh demister to the upper part of the bubble cap tower plate.
The utility model discloses still including set up in the retaining cap that decarbonization water import pipe and silk screen demister connect out. Preferably, the number of the shielding caps is two, and the two shielding caps are respectively positioned at the joint of the upper surface and the joint of the lower surface of the wire mesh demister.
The dehydrated water is discharged from the top of the tower and passes through the wire mesh demister, and a through pipe of the wire mesh demister is treated, so that the separation effect of the wire mesh demister is not damaged; meanwhile, the gas phase at the top of the tower and the contact surface of the wire mesh demister can be ensured not to be carried out when the fresh water pipe passes through the wire mesh demister.
The utility model provides a be used for coal-to-liquids tail gas washing tower, including set up in the bubble cap column plate of silk screen demister lower part.
The utility model discloses do not restrict to the concrete model and the specification of bubble cap column plate, the market that is familiar with technical personnel in the art can.
The distance between the wire mesh demister and the bubble cap tower plate is preferably 1.6-1.8 m; more preferably 1.8 m.
By controlling the position, the purification of the oxide is facilitated.
The utility model provides a be used for coal-to-liquids tail gas washing tower, including set up in the float valve column plate of bubble cap column plate lower part.
According to the present invention, the number of the float valve trays is preferably 6; the distance between the floating valve trays of each layer is preferably 90-110 cm. Each layer of floating valve tower plate is obliquely arranged, and the liquid enclosing height of the tower plate on one side is 4-5 cm; the height of the liquid surrounding of the tower plate on one side is 7-8 cm.
The washing water flows from the high side to the low side and is arranged in an S shape, which is beneficial to better countercurrent washing.
The utility model provides a be used for coal-to-liquids tail gas scrubbing tower, including setting up in the water inlet on scrubbing tower lateral wall, float valve column plate upper portion.
The water inlet is arranged at the upper part of the float valve tower plate and the lower part of the bubble cap tower plate.
The distance between the bubble cap column plate and the top floating valve column plate is preferably 1.6-1.8 m.
The water inlet is refluxed by a bottom pump of the washing tower. Here, it is reflux water, not fresh water.
The utility model provides a be used for coal-to-liquids oil tail gas washing tower, including set up in the liquid outlet of washing tower bottom.
The utility model provides a be used for coal-to-liquids tail gas scrubbing tower, including set up in the tail gas entry of scrubbing tower lateral wall, float valve column plate lower part.
According to the utility model discloses, the tail gas entry is located 40cm department in bottommost float valve column plate below.
The tail gas inlet is arranged, and the gas is upwards contacted with water in a counter-current manner by the floating valve tower plate to be purified.
Fig. 1 is a schematic view of the coal-to-liquid tail gas water washing tower of the utility model.
The cloud line part is the transformation content, wherein, the tower plates of the layers from 1# to 6# are the float valve tower plates pointing to 1, and 2 is the water inlet; 3 is a bubble cap tower plate, 4 is a wire mesh demister, 5 is a tail gas outlet, and 6 is a desalted water inlet pipe; 7 is a tail gas inlet; 8 is a liquid outlet
The utility model provides a be used for coal liquifaction tail gas washing tower, include: a float valve tower plate arranged at the lower part of the water washing tower; the bubble cap tower plate is arranged at the upper part of the floating valve tower plate; the wire mesh demister is arranged on the bubble cap tower plate; the decarbonization water inlet pipe, the tail gas outlet and the pressure monitoring port are arranged at the top of the washing tower; a water inlet arranged on the side wall of the washing tower and on the upper part of the float valve tower plate; a liquid outlet arranged at the bottom of the water washing tower; a tail gas inlet arranged on the side wall of the washing tower and at the lower part of the float valve tower plate; the carbohydrate removing inlet pipe enters the water washing tower and penetrates through the wire mesh demister to the upper part of the bubble cap tower plate. The utility model discloses an increase the bubble cap column plate and introduce fresh demineralized water and carry out the fine purifiation at the washing top of the tower for oxygen-containing compound concentration greatly reduced behind the coal-based oil tail gas through the washing tower, washing tower top decarbonization water pipe passes silk screen demister and sets up the separation effect that shelters from cap protection demister, has still avoided tail gas to carry liquid simultaneously, has guaranteed gaseous purity.
In order to further explain the present invention, the following detailed description is made on the coal-to-liquids tail gas washing tower provided by the present invention with reference to the following embodiments.
Example 1
According to the utility model discloses connect the device: a wire mesh demister with the thickness of 0.5m is arranged at the top of the water washing tower; the shielding cap is arranged at the decarbonization water inlet pipe and is connected with the wire mesh demister; the bubble cap tower plate is arranged at the lower part of the wire mesh demister; the distance between the wire mesh demister and the bubble cap tower plate is 1.8 m; six layers of floating valve trays arranged at the lower part of the bubble cap tray; the distance between every two layers is 95-105 cm; one side of the height of the confining liquid is 5cm, and the other side is 8 cm; the tail gas inlet is positioned 40cm below the tray of the bottommost float valve; the distance between the bubble cap tower plate and the top floating valve tower plate is 1.8 m; the decarbonization water inlet pipe, the tail gas outlet and the pressure monitoring port are arranged at the top of the washing tower; a water inlet arranged on the side wall of the washing tower and on the upper part of the float valve tower plate; a liquid outlet arranged at the bottom of the water washing tower; a tail gas inlet arranged on the side wall of the washing tower and at the lower part of the float valve tower plate; the carbohydrate removing inlet pipe enters the water washing tower and penetrates through the wire mesh demister to the upper part of the bubble cap tower plate.
Example 2
The linking device in the embodiment 1 is adopted to treat the coal-to-liquid tail gas, and the content of the oxygen-containing compound before treatment is 0.8-1.0%. The content of the oxygen-containing compound after the treatment was 0.2%.
Claims (9)
1. The utility model provides a be used for coal liquifaction tail gas washing tower which characterized in that includes:
the wire mesh demister is arranged at the top of the washing tower;
the bubble cap tower plate is arranged at the lower part of the wire mesh demister;
a float valve tray arranged at the lower part of the bubble cap tray;
the decarbonization water inlet pipe, the tail gas outlet and the pressure monitoring port are arranged at the top of the washing tower;
a water inlet arranged on the side wall of the washing tower and on the upper part of the float valve tower plate;
a liquid outlet arranged at the bottom of the water washing tower;
a tail gas inlet arranged on the side wall of the washing tower and at the lower part of the float valve tower plate;
the carbohydrate removing inlet pipe enters the water washing tower and penetrates through the wire mesh demister to the upper part of the bubble cap tower plate.
2. The water washing tower of claim 1, further comprising a shielding cap disposed at a connection point of the carbohydrate removal inlet pipe and the wire mesh demister.
3. The water wash column of claim 1, wherein the desublimating water inlet tube is a fresh water inlet that provides fine scrubbed desalinated water to the bubble cap tray.
4. The water wash column according to claim 1, wherein the number of valve trays is 6; the distance between each layer of floating valve tower plates is 90-110 cm; the floating valve tower plate is obliquely arranged, and the height of the liquid enclosing of the tower plate on one side is 4-5 cm; the height of the liquid surrounding of the tower plate on one side is 7-8 cm.
5. The water wash column of claim 1, wherein the off-gas inlet is located 40cm below the lowest valve tray.
6. The water wash tower of claim 1, wherein the wire mesh demister is 0.5m thick.
7. The water washing tower according to claim 1, wherein the distance between the wire mesh demister and the bubble cap tray is 1.6-1.8 m.
8. The water washing column according to claim 1, wherein the distance between the bubble cap tray and the top float valve tray is 1.6-1.8 m.
9. The water wash tower of claim 1, wherein the pressure monitoring port is configured to monitor a pressure of the wire mesh demister.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020266857.9U CN212017308U (en) | 2020-03-06 | 2020-03-06 | Be used for coal liquifaction tail gas scrubbing tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020266857.9U CN212017308U (en) | 2020-03-06 | 2020-03-06 | Be used for coal liquifaction tail gas scrubbing tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212017308U true CN212017308U (en) | 2020-11-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020266857.9U Active CN212017308U (en) | 2020-03-06 | 2020-03-06 | Be used for coal liquifaction tail gas scrubbing tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212017308U (en) |
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2020
- 2020-03-06 CN CN202020266857.9U patent/CN212017308U/en active Active
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