CN204569775U - Prepare the device of methyl alcohol - Google Patents
Prepare the device of methyl alcohol Download PDFInfo
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- CN204569775U CN204569775U CN201520156811.0U CN201520156811U CN204569775U CN 204569775 U CN204569775 U CN 204569775U CN 201520156811 U CN201520156811 U CN 201520156811U CN 204569775 U CN204569775 U CN 204569775U
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Abstract
A kind of device preparing methyl alcohol, first import (21) of interchanger (2) supplements feed channel with methanol purge gas pipeline and synthesis and is connected, first outlet (22) is connected with import (11), methanol-fueled CLC device (1) is also arranged setting device (6), outlet (12) is connected with second import (23) of interchanger (2), second outlet (24) is connected with cooling import (31), coolant outlet (32) is connected with the import of methanol separator (4), the lower part outlet (41) of methanol separator (4) is connected with the admission port (81) of flasher (8), the gaseous phase outlet (42) of methanol separator (4) is connected with the first admission port (71), pneumatic outlet (72) is connected with hydrogen extraction element, liquid-phase outlet (73) is connected with the second admission port (82), flasher liquid-phase outlet (83) is connected with methanol rectifying system, the top of flasher (8) is provided with flashed vapour relief outlet (84), the utility model has the advantage of: structure is simple, cost of manufacture is low, methanol-fueled CLC rate is high, methyl alcohol quality better and energy consumption is low.
Description
Technical field
The utility model relates to a kind of methyl alcohol product installation, especially a kind of device preparing methyl alcohol from methanol purge gas.
Background technology
Existing a kind of patent No. is that CN200620050061.X name is called that the Chinese utility model patent of " high efficient methyl alcohol synthesizing apparatus " discloses a kind of structure, and this structure comprises the methanol-fueled CLC device of a packed catalyst, an inlet tower gas interchanger, a recycle gas compressor, a methanol separator, a water cooler, a hydraulic turbine, a flasher, an injector and a steam heater.The beneficial effect of this patent increases a steam heater on conventional methanol synthesizer basis, and improve the temperature of inlet tower gas, the overlying catalyst of synthetic tower is fully utilized, synthetic tower throughput improves.Inlet tower gas and the exhaust gas temperature difference reduce, and synthetic tower bed temperature is more balanced, are conducive to the work-ing life of extending catalyst.But, in the synthetic gas of this device, the many carbon of hydrogen is few, hydrogen excessive in building-up reactions can cause methanol synthesis loop circulating flow rate to increase, increase the power consumption of synthesis cycle compressor and the quantity discharged of off-gas, make the clean hydrogen produced through multiple operations such as purification, conversions enter fuel system as off-gas and burn, because the calorific value of hydrogen is lower, valuable hydrogen belongs to waste resource as fuel is real, very unfortunate, and add methanol production consumption, reduce the competitiveness of product in market; In addition, in methanol synthesizer, the transformation efficiency of carbon monoxide is generally about 85%, still have the carbon monoxide of about 15% by discharging pneumatic transmission in roasting kiln, high-quality, rare carbon monoxide are also great wastes as fuel, then have, this apparatus structure is complicated, cost of manufacture is higher, and therefore, the structure of this device also needs further improvement.
Summary of the invention
Technical problem to be solved in the utility model provides for above-mentioned prior art present situation that a kind of project organization is simple, cost of manufacture is low, methanol-fueled CLC rate high-quality is good and the device preparing methyl alcohol from methanol purge gas that energy consumption is low.
The utility model solves the problems of the technologies described above adopted technical scheme: this prepares the device of methyl alcohol, include methanol-fueled CLC device, interchanger, water cooler, methanol separator and flasher, it is characterized in that: the first import of described interchanger supplements feed channel with methanol purge gas pipeline and synthesis and is connected, first outlet of described interchanger is connected by the import of pipeline with methanol-fueled CLC device, described methanol-fueled CLC device is also provided with the setting device that can control temperature in methanol-fueled CLC device, the outlet of methanol-fueled CLC device is connected with the second import of interchanger by pipeline, second outlet of described interchanger is connected with the cooling import of water cooler by pipeline, the coolant outlet of described water cooler is connected with the import of methanol separator by pipeline, the lower part outlet of described methanol separator is connected with the admission port of flasher by pipeline, the gaseous phase outlet of described methanol separator is connected with the first admission port of water absorption tower by pipeline, the pneumatic outlet of described water absorption tower is connected with hydrogen extraction element by pipeline, the liquid-phase outlet of described water absorption tower is connected with the second admission port of flasher by pipeline, the flasher liquid-phase outlet of described flasher is connected with methanol rectifying system by pipeline, the top of described flasher is provided with flashed vapour relief outlet.
As improvement, the pipeline that the gaseous phase outlet of described methanol separator is connected with the first admission port of water absorption tower also preferably can be provided with take-off pipe, described take-off pipe is connected with the import of recycle compressor, the outlet of described recycle compressor is supplemented feed channel by pipeline and methanol purge gas pipeline and is connected with synthesizing and merges together, and the pipeline after converging is connected with the first import of interchanger again.
As improvement, described setting device preferably can control the drum setter of reaction bed temperature and synthetic tower temperature out, one end of described drum setter to be exported with the heat exchange of control methanol-fueled CLC device by pipeline and is connected, the middle part of described drum setter is entered after pipeline converges mutually by pipeline and steam and is connected with the heat exchange import of methanol-fueled CLC device bottom, the described drum setter the other end is connected for water portion pipeline with boiler, and described drum setter top is provided with steam outlet.
As further improvement, described steam outlet can be selected to be connected with steam pipe network by pipeline.
As improvement, described interchanger can be preferably gas heat exchanger.Namely in profit anti-conjunction tower, the Btu utilization of thermopositive reaction, on interchanger, can be saved the energy like this and reduce use cost, can improve again the combined coefficient of methyl alcohol, kill two birds with one stone.
As improvement, described water cooler can be preferably evaporating water cooled but device.
As improvement, described flashed vapour relief outlet can be selected to be connected with flashed vapour system by pipeline.
As improvement, the washing water of described water absorption tower are connected with Desalting Water System by pipeline.
As improvement, the composition of described methanol purge gas comprises hydrogen, carbon monoxide, carbonic acid gas, methane, nitrogen, argon gas, methyl alcohol and water vapour.Certainly, other gas can also be comprised.
As improvement, the composition that described synthesis supplements gas comprises hydrogen, nitrogen, carbon monoxide, argon gas, methane, carbonic acid gas.Certainly can also have other gas, make-up gas according to the composition of methanol purge gas, specifically can be prepared.
Compared with prior art, the utility model has the advantage of: not only structure is simple for this device, cost of manufacture is low, and it is little to take up room, and corresponding energy consumption is also lower, and with former synthetic tower system common sparing facility, the water of former workshop section, electricity, vapour, phlegma resource can be made full use of; Due to discharging containing the hydrogen of more than 80%, carbon monoxide and carbonic acid gas available gas in gas of methanol-fueled CLC, hydrogen-carbon ratio is generally 2.45, and gaseous tension is high, quality better, effectively improves the output of gas generation methyl alcohol; Application the utility model is equal to a set of little synthesis system of connecting on original methanol device, makes the H in periodic off-gases by methanol purge gas overbottom pressure
2, CO, CO
2synthesizing methanol again, then through cooling, isolating methyl alcohol, thus improves total efficiency of carbon conversion, improves the output of gas generation methyl alcohol; And the utility model and former synthesis system are carried out connecting and used, and not only do not affect the operation of former system for methanol synthesis device, and significantly can also improve the utilization ratio of resource, so be a kind of device having very much using value.
Accompanying drawing explanation
Fig. 1 is the process structure figure of the utility model embodiment;
Fig. 2 is the process structure figure of the another kind of embodiment of the utility model.
Embodiment
Below in conjunction with accompanying drawing embodiment, the utility model is described in further detail.
As depicted in figs. 1 and 2, the device preparing methyl alcohol of the present embodiment, include methanol-fueled CLC device 1, interchanger 2, water cooler 3, methanol separator 4 and flasher 8, first import 21 of described interchanger 2 supplements feed channel with methanol purge gas pipeline and synthesis and is connected, first outlet 22 of described interchanger 2 is connected with the import 11 of methanol-fueled CLC device 1 by pipeline, described methanol-fueled CLC device 1 is also provided with the setting device 6 that can control temperature in methanol-fueled CLC device 1, the outlet 12 of methanol-fueled CLC device 1 is connected with the second import 23 of interchanger 2 by pipeline, second outlet 24 of described interchanger 2 is connected with the cooling import 31 of water cooler 3 by pipeline, the coolant outlet 32 of described water cooler is connected by the import of pipeline with methanol separator 4, the lower part outlet 41 of described methanol separator 4 is connected with the admission port 81 of flasher 8 by pipeline, the gaseous phase outlet 42 of described methanol separator 4 is connected with the first admission port 71 of water absorption tower 7 by pipeline, the pneumatic outlet 72 of described water absorption tower 7 is connected with hydrogen extraction element by pipeline, the liquid-phase outlet 73 of described water absorption tower 7 is connected with the second admission port 82 of flasher 8 by pipeline, the flasher liquid-phase outlet 83 of described flasher 8 is connected with methanol rectifying system by pipeline, the top of described flasher 8 is provided with flashed vapour relief outlet 84.The pipeline that the gaseous phase outlet 42 of described methanol separator 4 is connected with the first admission port 71 of water absorption tower 7 is provided with take-off pipe 9, described take-off pipe 9 is connected with the import of recycle compressor 5, the outlet of described recycle compressor 5 is supplemented feed channel by pipeline and methanol purge gas pipeline and is connected with synthesizing and merges together, and the pipeline after converging is connected with the first import of interchanger 2 again.Described setting device 6 is the drum setters that can control reaction bed temperature and synthetic tower temperature out, one end of described drum setter exports 13 by pipeline with the heat exchange of control methanol-fueled CLC device 1 and is connected, the middle part of described drum setter is entered after pipeline 15 converges mutually by pipeline and steam and is connected with the heat exchange import 14 of methanol-fueled CLC device 1 bottom, the described drum setter the other end is connected for water portion pipeline with boiler, and described drum setter top is provided with steam outlet 61.Described steam outlet 61 is connected with steam pipe network by pipeline.Described interchanger 2 is gas heat exchanger.Described water cooler 3 is evaporating water cooled but device.Described flashed vapour relief outlet 84 is connected with flashed vapour system by pipeline.The washing water of described water absorption tower 7 are connected with Desalting Water System by pipeline.
Principle of work: 5.1MPa periodic off-gases out by interchanger retrieving arrangement reaction heat, then enters methanol-fueled CLC top of tower through interchanger together with the synthetic gas supplemented after methanol separator, after synthetic gas enters beds, CO, CO
2with H
2just react methanol, two main reactions of synthesizing methanol are all strong exothermal reactions, react the heat major part discharged and are taken away by the boiled water of methyl alcohol synthetic reactor shell side.Reaction bed temperature and methyl alcohol synthetic reactor temperature out is controlled by controlling drum regulator pressure.Reactedly be cooled by interchanger containing alcohol gas, this gas-liquid mixture further through the evaporating water cooled but further condensation of device, then enters methanol separator and isolates methyl alcohol.Methyl alcohol after separation enters flash drum, and the gas after separation is sent into film and carried hydrogen production device after water wash column washing, sees Fig. 1.When being added with recycle compressor, see Fig. 2, through interchanger and by interchanger retrieving arrangement reaction heat together with the circulation gas that 5.1Mpa periodic off-gases out and the synthetic gas supplemented, circulator are sent here after methanol separator, then methanol-fueled CLC top of tower is entered, after synthetic gas enters beds, CO, CO
2with H
2just react methanol, two main reactions of synthesizing methanol are all strong exothermal reactions, react the heat major part discharged and are taken away by the boiled water of methyl alcohol synthetic reactor shell side.Reaction bed temperature and methyl alcohol synthetic reactor temperature out is controlled by regulating drum regulator pressure.Reactedly be cooled by interchanger containing alcohol gas, this gas-liquid mixture further through the evaporating water cooled but further condensation of device, then enters methanol separator and isolates methyl alcohol.Methyl alcohol after separation enters flash drum, and the gas part after methanol separator is separated sends into hydrogen extraction element after water wash column washing, and a part returns recycle compressor recycle.
When methanol purge gas is following table composition, periodic off-gases gas ingredients ratio is:
When in the supplementary gas of synthesis, composition is following table, make-up gas composition ratio is:
| Component | mol％ |
| H 2 | 66.83 |
| N 2 | 2.05 |
| CO | 22.98 |
| Ar | 0.02 |
| CH 4 | 0.81 |
| CO 2 | 7.23 |
| H 2S | 0.00 |
Claims (10)
1. prepare the device of methyl alcohol for one kind, include methanol-fueled CLC device (1), interchanger (2), water cooler (3), methanol separator (4) and flasher (8), it is characterized in that: first import (21) of described interchanger (2) supplements feed channel with methanol purge gas pipeline and synthesis and is connected, first outlet (22) of described interchanger (2) is connected with the import (11) of methanol-fueled CLC device (1) by pipeline, described methanol-fueled CLC device (1) is also provided with the setting device (6) that can control methanol-fueled CLC device (1) interior temperature, the outlet (12) of methanol-fueled CLC device (1) is connected with second import (23) of interchanger (2) by pipeline, second outlet (24) of described interchanger (2) is connected with the cooling import (31) of water cooler (3) by pipeline, the coolant outlet (32) of described water cooler is connected by the import of pipeline with methanol separator (4), the lower part outlet (41) of described methanol separator (4) is connected with the admission port (81) of flasher (8) by pipeline, the gaseous phase outlet (42) of described methanol separator (4) is connected with first admission port (71) of water absorption tower (7) by pipeline, the pneumatic outlet (72) of described water absorption tower (7) is connected with hydrogen extraction element by pipeline, the liquid-phase outlet (73) of described water absorption tower (7) is connected with second admission port (82) of flasher (8) by pipeline, the flasher liquid-phase outlet (83) of described flasher (8) is connected with methanol rectifying system by pipeline, the top of described flasher (8) is provided with flashed vapour relief outlet (84).
2. prepare the device of methyl alcohol according to claim 1, it is characterized in that: the pipeline that the gaseous phase outlet (42) of described methanol separator (4) is connected with first admission port (71) of water absorption tower (7) is provided with take-off pipe (9), described take-off pipe (9) is connected with the import of recycle compressor (5), the outlet of described recycle compressor (5) is supplemented feed channel by pipeline and methanol purge gas pipeline and is connected with synthesizing and merges together, and the pipeline after converging is connected with the first import of interchanger (2) again.
3. according to claim 1 or 2, prepare the device of methyl alcohol, it is characterized in that: described setting device (6) is the drum setter that can control reaction bed temperature and synthetic tower temperature out, one end of described drum setter exports (13) by pipeline with device (1) heat exchange of control methanol-fueled CLC and is connected, the middle part of described drum setter is entered after pipeline (15) converges mutually by pipeline and steam and is connected with the heat exchange import (14) of methanol-fueled CLC device (1) bottom, the described drum setter the other end is connected for water portion pipeline with boiler, described drum setter top is provided with steam outlet (61).
4. prepare the device of methyl alcohol according to claim 3, it is characterized in that: described steam outlet (61) is connected with steam pipe network by pipeline.
5. according to claim 1 or 2, prepare the device of methyl alcohol, it is characterized in that: described interchanger (2) is gas heat exchanger.
6. according to claim 1 or 2, prepare the device of methyl alcohol, it is characterized in that: described water cooler (3) is evaporating water cooled but device.
7. according to claim 1 or 2, prepare the device of methyl alcohol, it is characterized in that: described flashed vapour relief outlet (84) is connected with flashed vapour system by pipeline.
8. according to claim 1 or 2, prepare the device of methyl alcohol, it is characterized in that: the washing water of described water absorption tower (7) are connected with Desalting Water System by pipeline.
9. according to claim 1 or 2, prepare the device of methyl alcohol, it is characterized in that: the composition of described methanol purge gas comprises hydrogen, carbon monoxide, carbonic acid gas, methane, nitrogen, argon gas, methyl alcohol and water vapour.
10. according to claim 1 or 2, prepare the device of methyl alcohol, it is characterized in that: the composition that described synthesis supplements gas comprises hydrogen, nitrogen, carbon monoxide, argon gas, methane, carbonic acid gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520156811.0U CN204569775U (en) | 2015-03-19 | 2015-03-19 | Prepare the device of methyl alcohol |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520156811.0U CN204569775U (en) | 2015-03-19 | 2015-03-19 | Prepare the device of methyl alcohol |
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| CN204569775U true CN204569775U (en) | 2015-08-19 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104710278A (en) * | 2015-03-19 | 2015-06-17 | 宁波金远东石化工程技术有限公司 | Methanol preparation device |
| CN110582336A (en) * | 2017-12-04 | 2019-12-17 | 碳回收国际公司 | System for separating dissolved gases by distillation and stripping |
-
2015
- 2015-03-19 CN CN201520156811.0U patent/CN204569775U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104710278A (en) * | 2015-03-19 | 2015-06-17 | 宁波金远东石化工程技术有限公司 | Methanol preparation device |
| CN110582336A (en) * | 2017-12-04 | 2019-12-17 | 碳回收国际公司 | System for separating dissolved gases by distillation and stripping |
| CN110582336B (en) * | 2017-12-04 | 2021-10-22 | 碳回收国际公司 | System for separating dissolved gases by distillation and stripping |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 315040, No. 435, No. 435, Jiangdong North Road, Ningbo, Zhejiang Province, 004 (19-1) Ningbo and Feng creative square, unit 1902, 03 and 06 Patentee after: Ningbo Zhongke Far East catalytic Engineering Technology Co Ltd Address before: 315040 Zhejiang Province, Ningbo City Jiangdong Road No. 435 Ningbo Hefeng creative square building 8 floor E Patentee before: Ningbo Jinyuandong Petrochemical Engineering Technology Co., Ltd. |