CN114432846B - Drainage device and low-temperature methanol washing equipment - Google Patents
Drainage device and low-temperature methanol washing equipment Download PDFInfo
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- CN114432846B CN114432846B CN202210001255.4A CN202210001255A CN114432846B CN 114432846 B CN114432846 B CN 114432846B CN 202210001255 A CN202210001255 A CN 202210001255A CN 114432846 B CN114432846 B CN 114432846B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1456—Removing acid components
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1493—Selection of liquid materials for use as absorbents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2252/00—Absorbents, i.e. solvents and liquid materials for gas absorption
- B01D2252/20—Organic absorbents
- B01D2252/202—Alcohols or their derivatives
- B01D2252/2021—Methanol
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/30—Sulfur compounds
- B01D2257/304—Hydrogen sulfide
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/30—Sulfur compounds
- B01D2257/308—Carbonoxysulfide COS
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/50—Carbon oxides
- B01D2257/504—Carbon dioxide
Abstract
The invention relates to the field of drainage of low-temperature methanol washing equipment, and discloses a drainage device and low-temperature methanol washing equipment, wherein the drainage device comprises a circulating drainage unit, a waste methanol liquid returning pipeline (L2) and a waste water drainage pipeline (L3), the circulating drainage unit comprises a drainage main pipe (L1) and a liquid storage tank (200) arranged on the drainage main pipe, the waste methanol liquid returning pipeline is communicated with the drainage main pipe and is positioned at the downstream of the liquid storage tank, the waste water drainage pipeline is communicated with the drainage main pipe and is positioned at the downstream of the liquid storage tank, valves for controlling the on-off of pipelines are respectively arranged on the waste methanol liquid returning pipeline and the waste water drainage pipeline, and the drainage main pipe positioned between the waste methanol liquid returning pipeline and the waste water drainage pipeline is provided with a valve for controlling the on-off of the pipelines. This device can be when the device washs at low temperature methyl alcohol, moves back through useless methyl alcohol and moves back the methyl alcohol in the liquid pipeline and move back liquid back through waste water flowing back pipeline and discharge waste water, realizes high-efficient safe drainage.
Description
Technical Field
The invention relates to the technical field of drainage of low-temperature methanol washing equipment, in particular to a drainage device and the low-temperature methanol washing equipment.
Background
In the chemical production using coal as raw material, the raw synthesis gas contains a large amount of redundant CO 2 A small amount of H 2 S, COS, which are detrimental to productionSulfides can poison the catalyst in downstream production and must be removed and recovered.
The low-temperature methanol washing process uses cold methanol as an absorption solvent, and uses the methanol to treat acid gas (CO) at low temperature 2 、H 2 S, COS, etc.) has extremely high solubility, and removes acid gases from the raw material gas. Methanol belongs to flammable and explosive hazardous chemicals, when low-temperature methanol washing equipment is stopped and overhauled, methanol materials in all tower equipment pipelines need to be drained, emptied and recycled, then desalted water is supplemented for water washing replacement, and after the analysis is qualified, overhauling operation can be carried out. The washing water contains solid impurities such as methanol, coal powder, rust and the like, and is conveyed to a sewage unit for treatment. The waste water conveying flow is complex, the tower trays of the thermal regeneration tower and the methanol-water separation tower are easy to block, and the power consumption is high. After the low-temperature methanol washing equipment is shut down for maintenance and is replaced by water washing, the drainage process flow of the system needs to be optimized and developed.
Disclosure of Invention
The invention aims to solve the problems of shutdown maintenance of low-temperature methanol washing equipment and inconvenient drainage after water washing replacement in the prior art, and provides a liquid discharge device and low-temperature methanol washing equipment.
In order to achieve the above object, one aspect of the present invention provides a liquid discharge apparatus including: the circulating liquid discharge unit comprises a liquid discharge main pipe and a liquid storage tank arranged on the liquid discharge main pipe, one end of the liquid discharge main pipe is used for being communicated with a liquid discharge port of the low-temperature methanol washing device, and the other end of the liquid discharge main pipe is used for being communicated with a circulating water inlet of the low-temperature methanol washing device; one end of the waste methanol return pipeline is communicated with the liquid discharge main pipe and is positioned at the downstream of the liquid storage tank, and a valve for controlling the waste methanol return pipeline to be switched on and off is arranged on the waste methanol return pipeline; and one end of the waste water drainage pipeline is communicated with the drainage main pipe and is positioned at the downstream of the liquid storage tank, a valve for controlling the on-off of the waste water drainage pipeline is arranged on the waste water drainage pipeline, and a second valve for controlling the on-off of the waste methanol drainage pipeline is arranged between the waste methanol return pipeline and the waste water drainage pipeline.
Preferably, a liquid outlet of the liquid storage tank is provided with a discharge pump, and the discharge pump is used for controlling liquid outlet of the liquid storage tank.
Preferably, the liquid drainage main pipe is provided with a first valve and a third valve, the first valve is used for controlling the low-temperature methanol washing device to drain liquid to the liquid storage tank, and the third valve is used for controlling the liquid drainage main pipe to be communicated with the circulating water inlet.
Preferably, a fourth valve and a fifth valve are sequentially arranged on the waste methanol liquid outlet pipeline, a first blind plate is arranged between the fourth valve and the fifth valve, and the first blind plate is used for ensuring the tightness when the fourth valve and the fifth valve are closed.
Preferably, the other end of the wastewater drainage pipeline is communicated with a sewage discharge pipeline of the low-temperature methanol washing device, a sixth valve and a seventh valve are arranged on the wastewater drainage pipeline, the sixth valve is used for controlling the connection and disconnection between the wastewater drainage pipeline and the drainage main pipe, and the seventh valve is used for controlling the connection and disconnection between the wastewater drainage pipeline and the sewage discharge pipeline.
Preferably, a second blind plate and a third blind plate are arranged on the wastewater drainage pipeline, and the second blind plate and the third blind plate are respectively arranged at the sixth valve port and the seventh valve port.
Preferably, the waste water drainage pipeline is further provided with a drain port, and the drain port is controlled to be connected with the waste water drainage pipeline in a switching mode through a ninth valve.
Preferably, an eighth valve is arranged on the sewage discharge pipeline and used for controlling the on-off of the sewage discharge pipeline.
The invention also provides low-temperature methanol washing equipment which comprises a low-temperature methanol washing device and the liquid drainage device.
Preferably, the low-temperature methanol washing equipment further comprises a wastewater treatment unit, and the wastewater treatment unit is communicated with a sewage discharge pipeline of the low-temperature methanol washing device.
Through above-mentioned technical scheme, when the device was washed to low temperature methyl alcohol overhauld and the washing replacement, accessible useless methyl alcohol moves back liquid pipeline and withdraws from back through waste water flowing back pipeline emission waste water with the methyl alcohol liquid in the equipment, has realized high-efficient safe drainage, has avoided the solid impurity in the waste water to bring the risk of blocking up the device in the device is washed to low temperature methyl alcohol once more, has reduced the power consumption simultaneously.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
FIG. 1 is a schematic view of a drain of the present invention.
Description of the reference numerals
100-low temperature methanol washing device, 200-liquid storage tank, 300-discharge pump, 400-wastewater treatment unit,
l1-a liquid discharge header pipe, L2-a waste methanol liquid return pipeline, L3-a waste water discharge pipeline, L4-a sewage discharge pipeline,
v1-a first valve, V2-a second valve, V3-a third valve, V4-a fourth valve,
v5-a fifth valve, V6-a sixth valve, V7-a seventh valve, V8-an eighth valve,
v9-ninth valve, SF 1-first blind plate, SF 2-second blind plate, SF 3-third blind plate.
Detailed Description
The following describes in detail embodiments of the present invention with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
In one aspect, the present invention provides a liquid discharge apparatus, as shown in fig. 1, including: the circulating liquid drainage unit comprises a liquid drainage main pipe L1 and a liquid storage tank 200 arranged on the liquid drainage main pipe L1, one end of the liquid drainage main pipe L1 is used for being communicated with a liquid drainage port of the low-temperature methanol washing device 100, and the other end of the liquid drainage main pipe L1 is used for being communicated with a circulating water inlet of the low-temperature methanol washing device 100; a waste methanol liquid returning pipeline L2, wherein one end L2 of the waste methanol liquid returning pipeline is communicated with the liquid discharging main pipe L1 and is positioned at the downstream of the liquid storage tank 200, and a valve for controlling the waste methanol liquid returning pipeline L2 to be switched on and off is arranged on the waste methanol liquid returning pipeline; and a waste water drainage pipeline L3, one end of the waste water drainage pipeline L3 is communicated with the drainage main pipe L1 and is positioned at the lower part of the liquid storage tank 200, a valve for controlling the on-off of the waste water drainage pipeline L3 is arranged on the waste water drainage pipeline L3, and a second valve V2 for controlling the on-off of the waste methanol drainage pipeline L1 is arranged between the waste methanol drainage pipeline L2 and the waste water drainage pipeline L3.
In the invention, before the low-temperature methanol washing device 100 is overhauled or cleaned, residual methanol liquid in the device needs to be discharged from the liquid discharge port, the liquid discharge port is provided with the liquid discharge main pipe L1, and the residual waste methanol liquid is discharged to the waste methanol tank for recycling through the communication between the liquid discharge main pipe L1 and the waste methanol liquid return pipeline L2. After the low-temperature methanol washing device 100 is washed and replaced with water, because the number of towers, devices and equipment pipelines in the low-temperature methanol washing device 100 is large, the high-efficiency and safe drainage is realized, the risk of equipment blockage caused by the fact that solid impurities such as coal dust, iron rust and the like in the washed wastewater are brought into each equipment pipeline again is avoided, and one end of the wastewater drainage pipeline L3 is communicated with the drainage main pipe L1 and is positioned at the downstream of the liquid storage tank 200.
Further, a discharge pump 300 is arranged at the liquid outlet of the liquid storage tank 200, and the discharge pump 300 is used for controlling the liquid outlet of the liquid storage tank 200.
Specifically, a plurality of filters and pumps are arranged in the low-temperature methanol washing device 100 and are operated in a one-on-one standby mode, when the pressure difference of the operating filters reaches a set index or the faults of the operating pumps need to be maintained, standby equipment is put into use, main equipment needs to be cut out, and methanol solution in the main equipment is discharged to the liquid storage tank 200 for temporary storage. When the liquid level of the liquid storage tank 200 slowly rises to 80%, the discharge pump 300 is started, the methanol solution in the liquid storage tank 200 is conveyed to the low-temperature methanol washing device 100 again through the circulating water inlet for regeneration and recycling, and when the liquid level is reduced to 30%, the discharge pump 300 stops working.
In an embodiment of the present invention, the drain main L1 is provided with a first valve V1 and a third valve V3, the first valve V1 is used for controlling the low-temperature methanol washing apparatus 100 to drain the liquid to the liquid storage tank 200, and the third valve V3 is used for controlling the communication between the drain main L1 and the circulating water inlet.
In addition, be equipped with fourth valve V4 and fifth valve V5 on useless methyl alcohol liquid withdrawal pipeline L2 in proper order, fourth valve V4 with be provided with first blind plate SF1 between the fifth valve V5, first blind plate SF1 is used for guaranteeing the tightness when fourth valve V4 with fifth valve V5 is closed. Useless methyl alcohol moves back the liquid pipeline L2 other end and is connected with useless methyl alcohol jar, washes 100 parking overhauls of device when low temperature methyl alcohol, and remaining methyl alcohol liquid warp in the device the flowing back house steward L1 carry extremely useless methyl alcohol moves back behind the liquid pipeline L2, discharges to useless methyl alcohol jar in the recovery processing.
Preferably, the other end of the wastewater drainage pipeline L3 is communicated with a sewage pipeline L4 of the low-temperature methanol washing device 100, a sixth valve V6 and a seventh valve V7 are arranged on the wastewater drainage pipeline L3, the sixth valve V6 is used for controlling the connection and disconnection between the wastewater drainage pipeline L3 and the drainage main L1, and the seventh valve V7 is used for controlling the connection and disconnection between the wastewater drainage pipeline L3 and the sewage pipeline L4.
In order to ensure that the waste water drainage pipeline L3 cannot cause methanol leakage due to water leakage of the valve when the waste water drainage pipeline L3 is stopped, and ensure production safety, a second blind plate SF2 and a third blind plate SF3 are arranged on the waste water drainage pipeline L3, and the second blind plate SF2 and the third blind plate SF3 are respectively arranged at a sixth valve V6 port and a seventh valve V7 port to ensure the tightness when the valves are closed.
In addition, the waste water drainage pipeline L3 is also provided with a drain port, and the drain port is controlled to be connected with the waste water drainage pipeline L3 through a ninth valve V9. After the wastewater is discharged, the ninth valve V9 is opened to discharge the residual waste liquid in the wastewater drainage pipeline L3 from the drain port, the waste liquid is dried, the ninth valve V9 is closed, and the wastewater drainage pipeline L3 is isolated from the low-temperature methanol washing device for later use.
In addition, an eighth valve V8 is arranged on the sewage pipeline L4, and the eighth valve V8 is used for controlling the on-off of the sewage pipeline L4.
The invention provides a low-temperature methanol washing device, which comprises a low-temperature methanol washing device 100 and the liquid drainage device.
Specifically, the low-temperature methanol washing device further comprises a wastewater treatment unit 400, wherein the wastewater treatment unit 400 is communicated with a sewage pipeline L4 of the low-temperature methanol washing device 100. The wastewater treatment unit mainly reduces indexes such as organic matter concentration, COD (chemical oxygen demand) and the like in the wastewater by physical methods, chemical methods, biochemical methods and the like, and recycles the wastewater after reaching the standard.
To further illustrate the present invention, the following description is made of a flow of using the liquid discharge apparatus according to an embodiment of the present invention:
when equipment normal production is washed to low temperature methyl alcohol, close first valve V1 with third valve V3 cuts off device 100 is washed to low temperature methyl alcohol with drainage main L1's connection is closed seventh valve V7 confirms third blind plate SF3 is in the closure state, opens eighth valve V8, device 100 is washed to low temperature methyl alcohol normally works, and passes through waste water that produces in the sewage pipes L4 will be discharged waste water handles in the waste water treatment unit 400.
When the low-temperature methanol washing device 100 is used for equipment cleaning or small maintenance, standby equipment is put into use, then the equipment to be cleaned is cut out, cleaned after liquid drainage, the first valve V1 is opened, methanol solution in the equipment to be cleaned is drained to the liquid storage tank 200 through the liquid drainage main pipe L1 for temporary storage, when the liquid level of the liquid storage tank 200 slowly rises to 80%, the drainage pump 300 is started, the second valve V2 and the third valve V3 are opened, and the methanol solution in the liquid storage tank 200 is conveyed to the low-temperature methanol washing device 100 again through the circulating water inlet for regeneration and recycling; when the liquid level is reduced to 30%, the drainage pump 300 is stopped, the liquid level is continuously collected, and the operation is repeated daily (approximately once every two or three months).
Work as low temperature methanol washing device 100 parking is overhauld, need to return liquid to useless methanol tank with the remaining methanol liquid of all towers in the device, equipment pipeline and machine pump when, close second valve V2 seventh valve V7 with eighth valve V8 confirms third blind plate SF3 is in the closed condition, opens fourth valve V4 with fifth valve V5, adjusts first blind plate SF1 is in the open condition, confirms useless methanol liquid return pipeline L2 with liquid discharge header pipe L1 intercommunication opens first valve V1, arranges the methanol liquid to in the liquid storage pot 200, starts emission pump 300, will methanol liquid warp in the liquid storage pot 200 useless methanol liquid return pipeline L2 discharges to in the useless methanol tank.
After the low-temperature methanol washing device 100 is internally washed and replaced, when the wastewater containing solid impurities after washing and replacement is discharged from the liquid discharge port, closing the fourth valve V4 and the fifth valve V5, adjusting the first blind plate SF1 to be in a closed state, and confirming that the waste methanol liquid discharge pipeline L2 is cut off from the liquid discharge main pipe L1; closing the third valve V3 and the ninth valve V9 to ensure that the circulating water inlet and the drain port are both in a closed state; the first valve V1, the second valve V2, the sixth valve V6, the seventh valve V7 and the eighth valve V8 are opened in sequence, the second blind plate SF2 and the third blind plate SF3 are adjusted to be in an opening state, the discharge pump 300 is started, waste water is discharged to the liquid storage tank 200 through the liquid discharge port, then is conveyed to the waste water discharge pipeline L3 through the liquid discharge header pipe L1, and finally is discharged into the waste water treatment unit 400 through the waste water discharge pipeline L4 for treatment.
After the waste water is sent outward, close waste water flowing back pipeline L3 both ends sixth valve V6 and seventh valve V7 open ninth valve V9 will water in the waste water flowing back pipeline L3 pipeline passes through the drain outlet is drained, weathers, then closes ninth valve V9, adjusts second blind plate SF2 with third blind plate SF3 to the closed condition, with low temperature methanol washing device 100 keeps apart, and is reserve.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. The invention is not described in detail in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (9)
1. A liquid discharge device, characterized by comprising:
the circulating liquid drainage unit comprises a liquid drainage main pipe (L1) and a liquid storage tank (200) arranged on the liquid drainage main pipe (L1), one end of the liquid drainage main pipe (L1) is used for being communicated with a liquid drainage port of the low-temperature methanol washing device (100), and the other end of the liquid drainage main pipe (L1) is used for being communicated with a circulating water inlet of the low-temperature methanol washing device (100);
a waste methanol liquid returning pipeline (L2), wherein one end of the waste methanol liquid returning pipeline (L2) is communicated with the liquid discharging main pipe (L1) and is positioned at the downstream of the liquid storage tank (200), and a valve for controlling the waste methanol liquid returning pipeline (L2) to be switched on and off is arranged on the waste methanol liquid returning pipeline; and
a waste water drainage pipeline (L3), one end of the waste water drainage pipeline (L3) is communicated with the drainage main pipe (L1) and is positioned at the downstream of the liquid storage tank (200), a valve for controlling the on-off of the waste water drainage pipeline (L3) is arranged on the waste water drainage pipeline,
wherein a second valve (V2) for controlling the on-off of the liquid discharging main pipe (L1) positioned between the waste methanol liquid returning pipeline (L2) and the waste water liquid discharging pipeline (L3) is arranged on the liquid discharging main pipe (L1);
the other end of the waste water drainage pipeline (L3) is communicated with a sewage discharge pipeline (L4) of the low-temperature methanol washing device (100), a sixth valve (V6) and a seventh valve (V7) are arranged on the waste water drainage pipeline (L3), the sixth valve (V6) is used for controlling the on-off of the waste water drainage pipeline (L3) and the drainage main pipe (L1), and the seventh valve (V7) is used for controlling the on-off of the waste water drainage pipeline (L3) and the sewage discharge pipeline (L4).
2. Drainage device according to claim 1, characterised in that the outlet of the liquid storage tank (200) is provided with a drain pump (300), the drain pump (300) being adapted to control the outlet of the liquid storage tank (200).
3. The drainage device according to claim 1, wherein the drainage main pipe (L1) is provided with a first valve (V1) and a third valve (V3), the first valve (V1) is used for controlling the low-temperature methanol washing device (100) to drain the liquid to the liquid storage tank (200), and the third valve (V3) is used for controlling the communication between the drainage main pipe (L1) and the circulating water inlet.
4. The drainage device according to claim 1, characterized in that a fourth valve (V4) and a fifth valve (V5) are arranged on the waste methanol withdrawal line (L2) in sequence, and a first blind plate (SF 1) is arranged between the fourth valve (V4) and the fifth valve (V5), and the first blind plate (SF 1) is used for ensuring the tightness when the fourth valve (V4) and the fifth valve (V5) are closed.
5. Drain as claimed in claim 1, characterized in that a second blind plate (SF 2) and a third blind plate (SF 3) are provided on the waste drain line (L3), the second blind plate (SF 2) and the third blind plate (SF 3) being provided at the sixth valve (V6) port and the seventh valve (V7) port, respectively.
6. Drain arrangement according to claim 1, characterized in that the waste drain line (L3) is also provided with a drain opening which is controlled by a ninth valve (V9) to be opened and closed to the waste drain line (L3).
7. Drain as claimed in claim 1, characterized in that an eighth valve (V8) is provided on the sewage line (L4), which eighth valve (V8) is adapted to control the opening and closing of the sewage line (L4).
8. A low temperature methanol wash plant, characterized in that it comprises a low temperature methanol wash (100) and a drain according to any of claims 1-7.
9. The low-temperature methanol washing apparatus according to claim 8, further comprising a wastewater treatment unit (400), wherein the wastewater treatment unit (400) is communicated with a sewage discharge line (L4) of the low-temperature methanol washing device (100).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210001255.4A CN114432846B (en) | 2022-01-04 | 2022-01-04 | Drainage device and low-temperature methanol washing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202210001255.4A CN114432846B (en) | 2022-01-04 | 2022-01-04 | Drainage device and low-temperature methanol washing equipment |
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| CN114432846A CN114432846A (en) | 2022-05-06 |
| CN114432846B true CN114432846B (en) | 2023-04-14 |
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Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102008847B (en) * | 2010-07-02 | 2013-12-04 | 陕西神木化学工业有限公司 | Cleaning method of bag filter used in low temperature methanol washing process |
| CN205953572U (en) * | 2016-08-29 | 2017-02-15 | 陕西渭河煤化工集团有限责任公司 | Methyl alcohol / separation of water tower wastewater discharge system |
| CN206965283U (en) * | 2017-06-12 | 2018-02-06 | 陕西渭河煤化工集团有限责任公司 | A kind of rich methanol filter exhaust system |
| CN111659147B (en) * | 2019-03-08 | 2023-01-13 | 大连佳纯气体净化技术开发有限公司 | Recovery of CO from low-temperature methanol washing process 2 Method and recovery system |
| CN210448129U (en) * | 2019-08-23 | 2020-05-05 | 内蒙古伊泰化工有限责任公司 | Online descaling methanol-water separation system in low-temperature methanol washing process |
| CN210915376U (en) * | 2019-10-14 | 2020-07-03 | 国家能源集团宁夏煤业有限责任公司 | Low-temperature methanol washing structure and methanol preparation system |
| CN111156417A (en) * | 2020-01-08 | 2020-05-15 | 恒力石化（大连）炼化有限公司 | Device for low-temperature methanol washing and using method thereof |
| CN214571753U (en) * | 2021-03-22 | 2021-11-02 | 蒲城清洁能源化工有限责任公司 | Methanol underground tank protection system |
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