CN207101939U - A kind of distillation system that refined methanol and fusel oil are extracted from crude carbinol - Google Patents
A kind of distillation system that refined methanol and fusel oil are extracted from crude carbinol Download PDFInfo
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- CN207101939U CN207101939U CN201720741276.4U CN201720741276U CN207101939U CN 207101939 U CN207101939 U CN 207101939U CN 201720741276 U CN201720741276 U CN 201720741276U CN 207101939 U CN207101939 U CN 207101939U
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Abstract
A kind of distillation system that refined methanol and fusel oil are extracted from crude carbinol is the utility model is related to, periodic off-gases scrubbing tower, pre-rectifying tower, compression rectification tower, atmospheric distillation tower, recovery tower and fusel oil rectifier are sequentially connected in distillation system.The utility model solve traditional rectification process obtain the higher rectifying accessory substance of water content can not recycling problem；The load and cost of wastewater treatment equipment are alleviated, significantly improves the economic benefit and social benefit of ammonia from coal device.
Description
Technical field
A kind of distillation system that refined methanol and fusel oil are extracted from crude carbinol is the utility model is related to, belongs to ammonia from coal
Technical field.
Background technology
It is general that refined methanol is obtained using the rectification process of crude carbinol in ammonia from coal technique.Traditional crude carbinol rectifying
Technique typically uses three towers or four-column process flow, in addition to refined methanol is obtained, also obtains the very high rectifying accessory substance of water content, simultaneously
The accessory substance contains a certain amount of methanol.The very high rectifying accessory substance poor quality of water content, can not directly be applied, if directly arranged
Put and will result in environmental pollution, cost of sewage disposal, and content of organics high disposal can be increased again by being discharged to sewage disposal process
Get up and difficult.
The content of the invention
The utility model provides a kind of distillation system that refined methanol and fusel oil are extracted from crude carbinol, utilizes this practicality
It is new that refined methanol and the fusel oil byproduct of high-quality are extracted from crude carbinol, rectifying accessory substance is got utilization, subtract
Few environmental pollution, wastewater of rectification go gasification coal-grinding to produce water-coal-slurry.The utility model significantly improves the warp of ammonia from coal device
Help benefit and social benefit, solving the higher rectifying accessory substance of water content that traditional rectification process obtains can not recycling
Problem.The technical solution of the utility model is as follows：
A kind of rectification process that refined methanol and fusel oil are extracted from crude carbinol, is comprised the following steps that：
（1）Crude carbinol enters pre-rectifying tower after heat exchanger A heat exchange, and the overhead components of pre-rectifying tower exchange heat through heat exchanger B
Afterwards, gas phase portion enters periodic off-gases scrubbing tower, and gas phase portion contains substantial amounts of methanol, into periodic off-gases scrubbing tower recovery gas phase portion
Methanol in point, liquid phase part enter backflash A, the separation of aqueous phase and fusel oil, periodic off-gases scrubbing tower are realized in backflash A
Tower top for fuel gas, bottom of towe component and backflash A bottom component mixing after enter pre-rectifying tower, backflash A top is light
Component is fusel oil, can individually be reclaimed；
The pre-rectifying tower tower top pressure is 139 kPaA, and temperature is 74.8 DEG C；Tower bottom pressure is that 147 kPaA temperature are
77.5 DEG C, reflux ratio 0.92；The temperature of the pressure normal pressure of periodic off-gases scrubbing tower, tower top and bottom of towe is normal temperature, and periodic off-gases wash
Desalination water spray system is provided with tower, positioned at gas phase entrance top, desalted water and gaseous component counter current contacting are to wash in gas phase
Methanol.
（2）The bottom of towe component of pre-rectifying tower enters compression rectification tower, pre-rectifying tower and compression rectification after heat exchanger C heat exchange
Tower shares a heat exchanger C；
The tower top pressure of the compression rectification tower is 800 kPaA, and temperature is 128 DEG C；Tower bottom pressure is 813 kPaA, temperature
Spend for 134 DEG C；Reflux ratio is 3.0.
（3）The overhead components of compression rectification tower are divided into two parts after backflash B, and a part exchanges heat laggard through heat exchanger D
Enter compression rectification tower to change through heat exchanger C as industrial methanol finished product, the bottom component of compression rectification tower as backflow, another part
Enter atmospheric distillation tower after heat；
The purpose of overhead reflux allows liquid flux more to absorb the solute in fog, reaches more preferable for more preferable stripping
Vapour-liquid rectification effect；Another part is extracted out and is used as industrial methanol finished product.
（4）The overhead components of atmospheric distillation tower enter backflash C after heat exchanger E heat exchange, the component come out from backflash C
Be divided into three strands, one enter atmospheric distillation tower as overhead reflux, a stock-traders' know-how heat exchanger F heat exchange after be used as industrial methanol finished product,
One enters recovery tower and is discharged into waste water after heat exchanger G heat exchange as overhead reflux, the bottom of towe component of atmospheric distillation tower for waste water
System；
The tower top pressure of the atmospheric distillation tower is 113 kPaA, and temperature is 67.5 DEG C；Tower bottom pressure is 143 kPaA, temperature
Spend for 110 DEG C；Reflux ratio is 1.85.
（5）Enter recovery tower lower end from the component that atmospheric distillation tower comes out through feeder trough, the overhead components of recovery tower enter
Atmospheric distillation tower, bottom of towe component are that waste water is discharged into waste water system after heat exchanger H heat exchange, and the lower end component of recovery tower is through heat exchanger
Enter fusel oil rectifying column after I heat exchange；
The tower top pressure of the recovery tower is 133 kPaA, and temperature is 72 DEG C；Tower bottom pressure is 153 kPaA, and temperature is
111.5℃；Capacity of returns 3100kg/h.
（6）The overhead components of fusel oil rectifier enter backflash D after heat exchanger J heat exchange, go out backflash D component point
For two strands, it is fusel oil that one, which returns again to fusel oil rectifier as overhead reflux, another stock, with step（1）Divide in backflash A
From fusel oil be recycled to fusel oil accumulator tank；
The tower top pressure of the fusel oil rectifier is 23 kPaA, and temperature is 99.45 DEG C；Tower bottom pressure is 30 kPaA,
Temperature is 100 DEG C；Reflux ratio is 12-13；Preferably, reflux ratio 13.
Pre-rectifying tower described in the utility model, compression rectification tower, atmospheric distillation tower, recovery tower and fusel oil rectifier are equal
Plate column or filler can be used to add the combination tower of column plate, preferably filler adds the combination tower of column plate；More preferably structured packing adds
The combination tower of column plate；The filler is the regular stainless steel plate ripple packing of 250Y types；The plate column is preferably sieve-plate tower.
In the utility model, the distillation system of refined methanol and fusel oil is extracted from crude carbinol, system is washed including periodic off-gases
Wash tower, pre-rectifying tower, compression rectification tower, atmospheric distillation tower, recovery tower and fusel oil rectifier；Heat exchanger A is by pipeline and in advance
Rectifying column is connected, and the tower top of pre-rectifying tower is connected by pipeline with heat exchanger B, and heat exchanger B is washed with periodic off-gases respectively by pipeline
Wash tower to connect with backflash A, the bottom of towe of periodic off-gases scrubbing tower and backflash A bottom are connected by pipeline with pre-rectifying tower, in advance
Rectifying tower bottom is connected by pipeline through heat exchanger C with compression rectification tower, compression rectification tower bottom of towe by pipeline through heat exchanger C with
Atmospheric distillation tower is connected, and compression rectification column overhead is connected by pipeline with backflash B, backflash B by pipeline respectively with industry
Methanol accumulator tank is connected with heat exchanger D, and heat exchanger D is connected by pipeline with compression rectification tower, and atmospheric distillation column overhead passes through pipe
Road is connected with heat exchanger E, and heat exchanger E is connected by pipeline with backflash C, backflash C by pipeline respectively with atmospheric distillation tower,
Recovery tower is connected with heat exchanger F, and heat exchanger F is connected by pipeline with industrial methanol accumulator tank, and atmospheric distillation tower bottom of towe passes through pipe
Road is connected with heat exchanger G, and atmospheric distillation tower is connected by pipeline through feeder trough with recovery tower, and recovery column overhead is by pipeline and often
Pressure rectifying column is connected, and recovery tower bottom of towe is connected by pipeline with heat exchanger H, and recovery tower is by pipeline through heat exchanger I and fusel oil
Rectifying column is connected, and the bottom of towe of fusel oil rectifier is connected by pipeline with heat exchanger K, fusel oil rectifier lower end by pipeline and
Heat exchanger L is connected, and heat exchanger L is connected by pipeline with fusel oil rectifier, and fusel oil rectifying column tower top is by pipeline through heat exchange
Device J is connected with backflash D, and backflash D is connected by pipeline with fusel oil rectifier, backflash A and backflash D by pipeline with
Fusel oil accumulator tank is connected, and heat exchanger G, heat exchanger H and heat exchanger K bottom are connected with waste water system.
The utility model has advantages below compared with prior art：
（1）The utility model solve traditional rectification process obtain the higher rectifying accessory substance of water content can not recycling profit
Problem；
（2）Refined methanol and the fusel oil product of high-quality can be obtained using the utility model；
（3）The utility model can make traditional rectifying accessory substance get utilization, and can carry out wastewater of rectification
Secondary use, the load and cost of wastewater treatment equipment are alleviated, significantly improve economic benefit and the society of ammonia from coal device
Can benefit.
Brief description of the drawings
Fig. 1 is the utility model process chart.
Symbol description：
1. periodic off-gases scrubbing tower, 2. pre-rectifying towers, 3. compression rectification towers, 4. atmospheric distillation towers, 5. recovery towers, 6. fusels
Oil rectifier, 7-18. heat exchanger A-L, 19-22. backflashes A-D, 23. feeder troughs, 24. industrial methanol accumulator tanks, 25. fusel oil
Accumulator tank.
Embodiment
The utility model is further described with reference to specific embodiment, and the advantages of the utility model and feature will be with
Description and it is apparent.But embodiment is only exemplary, does not form any restrictions to the scope of the utility model.Ability
Field technique personnel should be understood that can be to the utility model technical side under without departing from spirit and scope of the present utility model
The details and form of case are modified or replaced, but these modifications and replacement are each fallen within the scope of protection of the utility model.
In the utility model, pre-rectifying tower, compression rectification tower, atmospheric distillation tower, recovery tower and fusel oil rectifier are
Structured packing adds the combination tower of column plate.
A kind of rectification process that refined methanol and fusel oil are extracted from crude carbinol of embodiment 1
Comprise the following steps that：
（1）Crude carbinol enters pre-rectifying tower 2 after the heat exchange of heat exchanger A 7, and the overhead components of pre-rectifying tower 2 are through heat exchanger B
After 8 heat exchange, gas phase portion enters periodic off-gases scrubbing tower 1, and gas phase portion contains substantial amounts of methanol, returned into periodic off-gases scrubbing tower 1
The methanol in gas phase portion is received, liquid phase part enters backflash A 19, and point of aqueous phase and fusel oil is realized in backflash A 19
From the tower top of, periodic off-gases scrubbing tower 1 to enter pre- rectifying after the bottom component mixing of fuel gas, bottom of towe component and backflash A 19
Tower 2, backflash A 19 top light component is fusel oil, can individually be reclaimed；
（2）The bottom of towe component of pre-rectifying tower 2 enters compression rectification tower 3 after the heat exchange of heat exchanger C 9, pre-rectifying tower 2 and adds
Rectifying column 3 is pressed to share a heat exchanger C 9；
（3）The overhead components of compression rectification tower 3 are divided into two parts after backflash B 20, and a part is changed through heat exchanger D 10
Enter compression rectification tower 3 after heat to pass through as industrial methanol finished product, the bottom component of compression rectification tower 3 as backflow, another part
Heat exchanger C 9 enters atmospheric distillation tower 4 after exchanging heat；
（4）The overhead components of atmospheric distillation tower 4 enter backflash C 21 after the heat exchange of heat exchanger E 11, from backflash C 21
Component out is divided into three strands, and one enters atmospheric distillation tower 4 as conduct after overhead reflux, a stock-traders' know-how heat exchanger F 12 heat exchange
Industrial methanol finished product, one be used as overhead reflux into recovery tower 5, the bottom of towe component of atmospheric distillation tower 4 is waste water through heat exchanger G
Waste water system is discharged into after 13 heat exchange；
（5）Enter the lower end of recovery tower 5, the overhead components of recovery tower 5 from the component that atmospheric distillation tower 4 comes out through feeder trough 23
It is waste water into atmospheric distillation tower 4, bottom of towe component, waste water system, the lower end group of recovery tower 5 is discharged into after the heat exchange of heat exchanger H 14
Lease making heat exchanger I 15 enters fusel oil rectifying column 6 after exchanging heat；
（6）The overhead components of fusel oil rectifier 6 enter backflash D 22 after the heat exchange of heat exchanger J 16, go out backflash D
22 component is divided into two strands, and it is fusel oil that one, which returns again to fusel oil rectifier 6 as overhead reflux, another stock of another stock, with
Step（1）The fusel oil separated in backflash A 19 is recycled to fusel oil accumulator tank 25.
A kind of rectification process that refined methanol and fusel oil are extracted from crude carbinol of embodiment 2
Comprise the following steps that：
（1）Crude carbinol enters pre-rectifying tower 2 after the heat exchange of heat exchanger A 7, and the overhead components of pre-rectifying tower 2 are through heat exchanger B
After 8 heat exchange, gas phase portion enters periodic off-gases scrubbing tower 1, and gas phase portion contains substantial amounts of methanol, returned into periodic off-gases scrubbing tower 1
The methanol in gas phase portion is received, liquid phase part enters backflash A 19, and point of aqueous phase and fusel oil is realized in backflash A 19
From the tower top of, periodic off-gases scrubbing tower 1 to enter pre- rectifying after the bottom component mixing of fuel gas, bottom of towe component and backflash A 19
Tower 2, backflash A 19 top light component is fusel oil, can individually be reclaimed；
The tower top pressure of pre-rectifying tower 2 is 139 kPaA, and temperature is 74.8 DEG C；Tower bottom pressure is that 147 kPaA temperature are
77.5 DEG C, reflux ratio 0.92；The temperature of the pressure normal pressure of periodic off-gases scrubbing tower 1, tower top and bottom of towe is normal temperature, and periodic off-gases wash
Desalination water spray system is provided with tower 1, positioned at gas phase entrance top；
（2）The bottom of towe component of pre-rectifying tower 2 enters compression rectification tower 3 after the heat exchange of heat exchanger C 9, pre-rectifying tower 2 and adds
Rectifying column 3 is pressed to share a heat exchanger C 9；
The tower top pressure of the compression rectification tower 3 is 800 kPaA, and temperature is 128 DEG C；Tower bottom pressure is 813 kPaA, temperature
Spend for 134 DEG C；Reflux ratio is 3.0；
（3）The overhead components of compression rectification tower 3 are divided into two parts after backflash B 20, and a part is changed through heat exchanger D 10
Enter compression rectification tower 3 after heat to pass through as industrial methanol finished product, the bottom component of compression rectification tower 3 as backflow, another part
Heat exchanger C 9 enters atmospheric distillation tower 4 after exchanging heat；
（4）The overhead components of atmospheric distillation tower 4 enter backflash C 21 after the heat exchange of heat exchanger E 11, from backflash C 21
Component out is divided into three strands, and one enters atmospheric distillation tower 4 as conduct after overhead reflux, a stock-traders' know-how heat exchanger F 12 heat exchange
Industrial methanol finished product, one be used as overhead reflux into recovery tower 5, the bottom of towe component of atmospheric distillation tower 4 is waste water through heat exchanger G
Waste water system is discharged into after 13 heat exchange；
The tower top pressure of the atmospheric distillation tower 4 is 113 kPaA, and temperature is 67.5 DEG C；Tower bottom pressure is 143 kPaA,
Temperature is 110 DEG C；Reflux ratio is 1.85；
（5）Enter the lower end of recovery tower 5, the overhead components of recovery tower 5 from the component that atmospheric distillation tower 4 comes out through feeder trough 23
It is waste water into atmospheric distillation tower 4, bottom of towe component, waste water system, the lower end group of recovery tower 5 is discharged into after the heat exchange of heat exchanger H 14
Lease making heat exchanger I 15 enters fusel oil rectifying column 6 after exchanging heat；
The tower top pressure of the recovery tower 5 is 133 kPaA, and temperature is 72 DEG C；Tower bottom pressure is 153 kPaA, and temperature is
111.5℃；Capacity of returns 3100kg/h；
（6）The overhead components of fusel oil rectifier 6 enter backflash D 22 after the heat exchange of heat exchanger J 16, go out backflash D
22 component is divided into two strands, and it is fusel oil that one, which returns again to fusel oil rectifier 6 as overhead reflux, another stock of another stock, with
Step（1）The fusel oil separated in backflash A 19 is recycled to fusel oil accumulator tank 25；
The tower top pressure of the fusel oil rectifier 6 is 23 kPaA, and temperature is 99.45 DEG C；Tower bottom pressure is 30 kPaA,
Temperature is 100 DEG C；Reflux ratio is 13.
After testing, refined methanol meets GB 338-2011 in the utility model《Industrial methanol》The technical specification of middle high-class product
It is required that total alcohol content is up to more than 80% in fusel oil.
A kind of distillation system that refined methanol and fusel oil are extracted from crude carbinol of embodiment 3
As shown in figure 1, system include periodic off-gases scrubbing tower 1, pre-rectifying tower 2, compression rectification tower 3, atmospheric distillation tower 4, return
Receive tower 5 and fusel oil rectifier 6；Heat exchanger A 7 is connected by pipeline with pre-rectifying tower 2, and the tower top of pre-rectifying tower 2 passes through pipeline
It is connected with heat exchanger B 8, heat exchanger B 8 is connected with periodic off-gases scrubbing tower 1 and backflash A 19 respectively by pipeline, and periodic off-gases are washed
Wash the bottom of towe of tower 1 and backflash A 19 bottom is connected by pipeline with pre-rectifying tower 2, the bottom of towe of pre-rectifying tower 2 is passed through by pipeline
Heat exchanger C 9 is connected with compression rectification tower 3, and the bottom of towe of compression rectification tower 3 is connected by pipeline through heat exchanger C 9 and atmospheric distillation tower 4
Connect, the tower top of compression rectification tower 4 is connected by pipeline with backflash B 20, and backflash B 20 is stored up with industrial methanol respectively by pipeline
Deposit groove 24 and heat exchanger D 10 is connected, heat exchanger D 10 is connected by pipeline with compression rectification tower 3, and the tower top of atmospheric distillation tower 4 leads to
Piping is connected with heat exchanger E 11, and heat exchanger E 11 is connected by pipeline with backflash C 21, and backflash C 21 passes through pipeline
It is connected respectively with atmospheric distillation tower 4, recovery tower 5 and heat exchanger F 12, heat exchanger F 12 passes through pipeline and industrial methanol accumulator tank
24 connections, the bottom of towe of atmospheric distillation tower 4 are connected by pipeline with heat exchanger G 13, and atmospheric distillation tower 4 is by pipeline through feeder trough 23
It is connected with recovery tower 5, the tower top of recovery tower 5 is connected by pipeline with atmospheric distillation tower 4, and the bottom of towe of recovery tower 5 passes through pipeline and heat exchange
Device H 14 is connected, and recovery tower 5 is connected by pipeline through heat exchanger I 15 with fusel oil rectifier 6, the bottom of towe of fusel oil rectifier 6
It is connected by pipeline with heat exchanger K 17, the lower end of fusel oil rectifier 6 is connected by pipeline with heat exchanger L 18, heat exchanger L 18
It is connected by pipeline with fusel oil rectifier 6, the tower top of fusel oil rectifier 6 is by pipeline through heat exchanger J 16 and backflash D 22
Be connected, backflash D 22 is connected by pipeline with fusel oil rectifier 6, backflash A 19 and backflash D 22 by pipeline with it is miscellaneous
Alcohol oil accumulator tank 25 is connected, and heat exchanger G 13, heat exchanger H 14 and heat exchanger K 17 bottom are connected with waste water system.
Claims (6)
1. a kind of distillation system that refined methanol and fusel oil are extracted from crude carbinol, it is characterised in that distillation system includes speeding to put
Gas wash tower, pre-rectifying tower, compression rectification tower, atmospheric distillation tower, recovery tower and fusel oil rectifier；Heat exchanger A passes through pipeline
It is connected with pre-rectifying tower, the tower top of pre-rectifying tower is connected by pipeline with heat exchanger B, and heat exchanger B is by pipeline respectively with speeding to put
Gas wash tower connects with backflash A, and the bottom of towe of periodic off-gases scrubbing tower and backflash A bottom pass through pipeline and pre-rectifying tower phase
Even, pre-rectifying tower bottom of towe is connected by pipeline through heat exchanger C with compression rectification tower, and compression rectification tower bottom of towe is by pipeline through heat exchange
Device C is connected with atmospheric distillation tower, and compression rectification column overhead is connected by pipeline with backflash B, backflash B by pipeline respectively with
Industrial methanol accumulator tank is connected with heat exchanger D, and heat exchanger D is connected by pipeline with compression rectification tower, and atmospheric distillation column overhead is led to
Piping is connected with heat exchanger E, and heat exchanger E is connected by pipeline with backflash C, and backflash C is smart with normal pressure respectively by pipeline
Evaporate tower, recovery tower is connected with heat exchanger F, heat exchanger F is connected by pipeline with industrial methanol accumulator tank, and atmospheric distillation tower bottom of towe is led to
Piping is connected with heat exchanger G, and atmospheric distillation tower is connected by pipeline through feeder trough with recovery tower, and recovery column overhead passes through pipeline
Be connected with atmospheric distillation tower, recovery tower bottom of towe is connected by pipeline with heat exchanger H, recovery tower by pipeline through heat exchanger I with it is miscellaneous
Alcohol oil rectifier is connected, and the bottom of towe of fusel oil rectifier is connected by pipeline with heat exchanger K, and fusel oil rectifier lower end passes through pipe
Road is connected with heat exchanger L, and heat exchanger L is connected by pipeline with fusel oil rectifier, and fusel oil rectifying column tower top is passed through by pipeline
Heat exchanger J is connected with backflash D, and backflash D is connected by pipeline with fusel oil rectifier, and backflash A and backflash D pass through pipe
Road is connected with fusel oil accumulator tank, and heat exchanger G, heat exchanger H and heat exchanger K bottom are connected with waste water system.
2. distillation system according to claim 1, it is characterised in that the pre-rectifying tower, compression rectification tower, atmospheric distillation
Tower, recovery tower and fusel oil rectifier add the combination tower of column plate using plate column or filler.
3. distillation system according to claim 2, it is characterised in that the pre-rectifying tower, compression rectification tower, atmospheric distillation
Tower, recovery tower and fusel oil rectifier are the combination tower that filler adds column plate.
4. distillation system according to claim 3, it is characterised in that the combination tower is that structured packing adds the compound of column plate
Tower.
5. distillation system according to claim 4, it is characterised in that the filler is the regular stainless steel plate ripple of 250Y types
Line filler.
6. distillation system according to claim 2, it is characterised in that the plate column is sieve-plate tower.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720741276.4U CN207101939U (en) | 2017-06-23 | 2017-06-23 | A kind of distillation system that refined methanol and fusel oil are extracted from crude carbinol |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720741276.4U CN207101939U (en) | 2017-06-23 | 2017-06-23 | A kind of distillation system that refined methanol and fusel oil are extracted from crude carbinol |
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| CN207101939U true CN207101939U (en) | 2018-03-16 |
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ID=61589032
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| CN201720741276.4U Active CN207101939U (en) | 2017-06-23 | 2017-06-23 | A kind of distillation system that refined methanol and fusel oil are extracted from crude carbinol |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110759812A (en) * | 2019-11-12 | 2020-02-07 | 陕西聚能新创煤化科技有限公司 | Recovery method and recovery system of fusel ethanol in methanol rectification process |
| CN111821820A (en) * | 2020-07-14 | 2020-10-27 | 中石化宁波工程有限公司 | Methanol device pre-tower tail gas utilization system and method |
| CN113082756A (en) * | 2021-04-30 | 2021-07-09 | 华能(广东)能源开发有限公司海门电厂 | Methanol rectification unit waste heat cascade utilization co-production heat supply system and method |
| CN115724489A (en) * | 2022-11-17 | 2023-03-03 | 安徽金禾实业股份有限公司 | Device and method for treating residual liquid of methanol rectifying tower |
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2017
- 2017-06-23 CN CN201720741276.4U patent/CN207101939U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110759812A (en) * | 2019-11-12 | 2020-02-07 | 陕西聚能新创煤化科技有限公司 | Recovery method and recovery system of fusel ethanol in methanol rectification process |
| CN110759812B (en) * | 2019-11-12 | 2023-12-05 | 陕西聚能新创煤化科技有限公司 | Recovery method and recovery system for ethanol miscellaneous alcohol in methanol rectification process |
| CN111821820A (en) * | 2020-07-14 | 2020-10-27 | 中石化宁波工程有限公司 | Methanol device pre-tower tail gas utilization system and method |
| CN111821820B (en) * | 2020-07-14 | 2022-07-12 | 中石化宁波工程有限公司 | Methanol device pre-tower tail gas utilization system and method |
| CN113082756A (en) * | 2021-04-30 | 2021-07-09 | 华能(广东)能源开发有限公司海门电厂 | Methanol rectification unit waste heat cascade utilization co-production heat supply system and method |
| CN115724489A (en) * | 2022-11-17 | 2023-03-03 | 安徽金禾实业股份有限公司 | Device and method for treating residual liquid of methanol rectifying tower |
| CN115724489B (en) * | 2022-11-17 | 2023-12-08 | 安徽金禾实业股份有限公司 | Residual liquid treatment device and treatment method for methanol rectifying tower |
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Address after: 010321 Dalu New District, Zhungeer banner, Ordos City, Inner Mongolia Autonomous Region Patentee after: Inner Mongolia Jiutai New Material Technology Co.,Ltd. Address before: 010321 Dalu New District, Ordos City, Inner Mongolia Autonomous Region Patentee before: JIUTAI ENERGY INNER MONGOLIA Co.,Ltd. |
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| CP03 | "change of name, title or address" |