CN204237725U - A kind of device processing methyl alcohol flash steam - Google Patents
A kind of device processing methyl alcohol flash steam Download PDFInfo
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- CN204237725U CN204237725U CN201420707731.5U CN201420707731U CN204237725U CN 204237725 U CN204237725 U CN 204237725U CN 201420707731 U CN201420707731 U CN 201420707731U CN 204237725 U CN204237725 U CN 204237725U
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- flash steam
- inlet
- methyl alcohol
- surge tank
- valve
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Abstract
Process a device for methyl alcohol flash steam, it relates to a kind of device processing flash steam.The purpose of this utility model will solve in existing methanol process to produce methyl alcohol flash steam, and existing method exists the cost height of recycling methyl alcohol flash steam and directly methyl alcohol flash steam is discharged in air the problem causing resource waste and pollution environment.Device comprises purified gas inlet tube, valve, process furnace, fuel gas surge tank, oxygen and water vapour inlet pipe, converter, compressor, synthetic tower, water cooler, flash drum, exhaust-valve, flash steam separator, methanol outlet pipe, Heat Exchanger in Circulating Water System and inlet tower gas interchanger; Described purified gas inlet tube is connected with the inlet end of fuel gas surge tank with the inlet end of heat exchanger tube respectively; The exit end of fuel gas surge tank is connected with flame distributor; The top exit end of flash steam separator is connected with fuel gas surge tank.The utility model can obtain a kind of device processing methyl alcohol flash steam.
Description
Technical field
The utility model relates to a kind of device processing flash steam.
Background technology
Methyl alcohol flash steam enters in flash drum at the isolated methyl alcohol of methanol separator, pressure is down to low pressure rapidly from high pressure, be dissolved in mixed gas abrupt release in methyl alcohol out, comprising methane, ethane, carbon monoxide, carbonic acid gas, hydrogen, methanol gas, this gaseous constituent is complicated, has higher thermal value.Containing 12% ~ 18% methane gas from the synthesizing methanol purified gas that purification section comes, this part gas is rare gas element for synthesizing methanol, do not participate in building-up reactions, and affect reaction efficiency, methane gas wherein and oxygen water vapour react by partial oxidation workshop section, produce the active principle of carbon monoxide, carbonic acid gas, hydrogen synthesizing methanol.
The methyl alcohol that existing method is produced mainly utilizes lurgi gasifier pressure gasification process, in lurgi gasifier pressure gasification process methanol process, the methyl alcohol flash steam produced, methyl alcohol flash steam complicated component, recycle difficulty, but wherein also containing methane, carbon monoxide, the high heat value gas such as methyl alcohol, recycling problem is good terms of settlement never, usually two kinds are had to the treatment process of this part flash steam: first method is: flash steam pressure is low, if enter methanol synthetic system need increase a flash steam compressor newly, be compressed to more than 2MPa, by the carbon monoxide in flash steam, carbonic acid gas, the active principle of hydrogen synthesizing methanol utilizes, but methane wherein, ethane, the inert components such as nitrogen affect synthesis efficiency, and a newly-increased compressor power cost consumption increases, analyze from economic benefit aspect, there is no practical significance, second method is: flash steam directly enters air after flash drum decompression, not only wastes resource but also causes certain influence to environment.
Utility model content
The purpose of this utility model will solve in existing methanol process to produce methyl alcohol flash steam, there is the cost height of recycling methyl alcohol flash steam and directly methyl alcohol flash steam be discharged in air the problem causing resource waste and pollution environment in existing method, and provides a kind of device processing methyl alcohol flash steam.
A kind of device processing methyl alcohol flash steam comprises purified gas inlet tube, the first valve, the second valve, the 3rd valve, process furnace, fuel gas surge tank, oxygen and water vapour inlet pipe, converter, compressor, synthetic tower, water cooler, flash drum, exhaust-valve, flash steam separator, methanol outlet pipe, Heat Exchanger in Circulating Water System and inlet tower gas interchanger;
Heat exchanger tube and flame distributor is provided with in described process furnace; Described purified gas inlet tube is connected with the inlet end of fuel gas surge tank with the inlet end of heat exchanger tube respectively; Be provided with the first valve between purified gas inlet tube and heat exchanger tube, between purified gas inlet tube and fuel gas surge tank, be provided with the second valve; The exit end of fuel gas surge tank is connected with flame distributor, and is provided with the 3rd valve between fuel gas surge tank and flame distributor; The exit end of heat exchanger tube is connected with the entrance end of converter with water vapour inlet pipe inlet end respectively with oxygen; The exit end of converter is connected with the inlet end of Heat Exchanger in Circulating Water System, and the exit end of Heat Exchanger in Circulating Water System is connected with the inlet end of compressor; The exit end of compressor is connected with the inlet end of inlet tower gas interchanger, and the exit end of inlet tower gas interchanger is connected with the inlet end of synthetic tower, and the exit end of synthetic tower is connected with the inlet end of water cooler; The exit end of water cooler is connected with the inlet end of flash drum; The top exit end of flash drum is connected with the inlet end of flash steam separator; The top exit end of flash steam separator is connected with fuel gas surge tank; The outlet at bottom end of flash drum is connected with methanol outlet pipe respectively with the outlet at bottom end of flash steam separator.
Principle of the present utility model and advantage:
Containing 12% ~ 18% methane gas in the purification coal gas of one, synthesizing methanol, purification coal gas enters into heat exchanger tube and fuel gas surge tank from purified gas inlet tube respectively by the first valve and the second valve, and the purification coal gas entering into fuel gas surge tank is used by the fuel gas of the 3rd valve as flame distributor; Enter into the intrafascicular purification coal gas of Tube Sheet of Heat Exchanger after flame distributor burning purified gas open firing, after temperature rises to the temperature reaching and enter in converter, the purification coal gas of heating enters into converter, the combustion chamber mixed firing on converter top with the oxygen entered from oxygen and water vapour inlet pipe and water vapour, high-temperature gas is again through the beds of converter bottom, carry out the steam reforming reaction of hydro carbons, obtain the reforming gas of high temperature, in reforming gas, the contents on dry basis of methane is less than 0.5%; The chemical reaction that purification coal gas occurs in converter is as follows: CH
4+ 2O
2=CO
2+ 2H
2o; CH
4+ H
2o=CO+3H
2; Reforming gas is CO
2, CO, H
2o and H
2reforming gas cools through Heat Exchanger in Circulating Water System, temperature drops to 40 DEG C, then compressor is entered into, after reforming gas enters into compressor boosting, enter into inlet tower gas interchanger again to heat up, then enter into the adiabatic catalytic oxidant layer of tubulation in synthetic tower from synthetic tower top, flow through tubulation inner catalyst bed after intensification from top to bottom and carry out methanol-fueled CLC reaction; The chemical equation occurred in synthetic tower is 2H
2+ CO=CH
3oH; 3H
2+ CO
2=CH
3oH+H
2o; Reaction gas bottom synthetic tower out, enter into water cooler and be cooled to 40 DEG C, crude carbinol is isolated again from water cooler, crude carbinol is discharged from the bottom of methyl alcohol water cooler, enter into flash drum, methyl alcohol flash steam is discharged through flash drum decompression, methyl alcohol flash steam is discharged from the upper end of flash drum, enter into flash steam separator, again after flash steam separator is separated, discharge from the upper end of flash steam separator, enter into fuel gas surge tank, fuel gas as flame distributor uses, and reduces the usage quantity of purification coal gas; The methyl alcohol separated through flash drum and flash steam separator enters into methanol outlet pipe, discharges through methanol outlet pipe;
Two, in the utility model, the flow of the methane flash steam that flash steam separator upper end produces is 2000m
3/ h, be high heating value mixed gas, methane flash steam enters into fuel gas surge tank, mix in fuel gas surge tank with purification coal gas, enter into process furnace, burn as raw material, methane flash steam comprises methane, ethane, carbon monoxide, hydrogen, is 25.6MJ/m with reference to calorific value
3burning has fine heats, compare sublimate heated by gas efficiency high a lot, purification coal gas is 13.5MJ/ cubic meter with reference to calorific value, decrease the usage quantity of purification coal gas, bring certain economic benefit, per hour supplement 2000 cubic metres purification coal gas burn in process furnace, by the calculating of purification coal gas 2.5 yuan, per hourly save 5000 yuans, bring certain economic benefit, and methane flash steam gas does not enter in air, environment is not had any impact, there is certain environmental benefit.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation processing the device of methyl alcohol flash steam described in embodiment one; In Fig. 1,1 is purified gas inlet tube, and 2 is the first valve, and 3 is the second valve, and 4 is the 3rd valve, 5 is process furnace, and 6 is fuel gas surge tank, and 7 is oxygen and water vapour inlet pipe, 8 is converter, and 9 is compressor, and 10 is synthetic tower, 11 is water cooler, and 12 is flash drum, and 13 is exhaust-valve, 14 is flash steam separator, and 15 is methanol outlet pipe, and 16 is Heat Exchanger in Circulating Water System, 17 is inlet tower gas interchanger, and 5-1 is heat exchanger tube, and 5-2 is flame distributor.
Embodiment
Embodiment one: present embodiment is that a kind of device processing methyl alcohol flash steam comprises purified gas inlet tube 1, first valve 2, second valve 3, the 3rd valve 4, process furnace 5, fuel gas surge tank 6, oxygen and water vapour inlet pipe 7, converter 8, compressor 9, synthetic tower 10, water cooler 11, flash drum 12, exhaust-valve 13, flash steam separator 14, methanol outlet pipe 15, Heat Exchanger in Circulating Water System 16 and inlet tower gas interchanger 17;
Heat exchanger tube 5-1 and flame distributor 5-2 is provided with in described process furnace 5; Described purified gas inlet tube 1 is connected with the inlet end of fuel gas surge tank 6 with the inlet end of heat exchanger tube 5-1 respectively; Be provided with the first valve 2 between purified gas inlet tube 1 and heat exchanger tube 5-1, between purified gas inlet tube 1 and fuel gas surge tank 6, be provided with the second valve 3; The exit end of fuel gas surge tank 6 is connected with flame distributor 5-2, and is provided with the 3rd valve 4 between fuel gas surge tank 6 and flame distributor 5-2; The exit end of heat exchanger tube 5-1 is connected with the entrance end of converter 8 with water vapour inlet pipe 7 inlet end respectively with oxygen; The exit end of converter 8 is connected with the inlet end of Heat Exchanger in Circulating Water System 16, and the exit end of Heat Exchanger in Circulating Water System 16 is connected with the inlet end of compressor 9; The exit end of compressor 9 is connected with the inlet end of inlet tower gas interchanger 17, and the exit end of inlet tower gas interchanger 17 is connected with the inlet end of synthetic tower 10, and the exit end of synthetic tower 10 is connected with the inlet end of water cooler 11; The exit end of water cooler 11 is connected with the inlet end of flash drum 12; The top exit end of flash drum 12 is connected with the inlet end of flash steam separator 14; The top exit end of flash steam separator 14 is connected with fuel gas surge tank 6; The outlet at bottom end of flash drum 12 is connected with methanol outlet pipe 15 respectively with the outlet at bottom end of flash steam separator 14.
The principle of present embodiment and advantage:
Containing 12% ~ 18% methane gas in the purification coal gas of one, synthesizing methanol, purification coal gas enters into heat exchanger tube 5-1 and fuel gas surge tank 6 from purified gas inlet tube 1 respectively by the first valve 2 and the second valve 3, and the purification coal gas entering into fuel gas surge tank 6 is used by the fuel gas of the 3rd valve 4 as flame distributor 5-2, enter into the purification coal gas of heat exchanger tube 5-1 after flame distributor 5-2 burns purified gas open firing, after temperature rises to the temperature reaching and enter in converter, the purification coal gas of heating enters into converter 8, the combustion chamber mixed firing on converter 8 top with the oxygen entered from oxygen and water vapour inlet pipe 7 and water vapour, high-temperature gas is again through the beds of converter 8 bottom, carry out the steam reforming reaction of hydro carbons, obtain the reforming gas of high temperature, in reforming gas, the contents on dry basis of methane is less than 0.5%, the chemical reaction that purification coal gas occurs in converter is as follows: CH
4+ 2O
2=CO
2+ 2H
2o, CH
4+ H
2o=CO+3H
2, reforming gas is CO
2, CO, H
2o and H
2reforming gas cools through Heat Exchanger in Circulating Water System 16, temperature drops to 40 DEG C, then compressor 9 is entered into, after reforming gas enters into compressor 9 boosting, enter into inlet tower gas interchanger 17 again to heat up, then enter into the adiabatic catalytic oxidant layer of tubulation in synthetic tower 10 from synthetic tower 10 top, flow through tubulation inner catalyst bed after intensification from top to bottom and carry out methanol-fueled CLC reaction, the chemical equation occurred in synthetic tower 10 is 2H
2+ CO=CH
3oH, 3H
2+ CO
2=CH
3oH+H
2o, reaction gas bottom synthetic tower 10 out, enter into water cooler 11 and be cooled to 40 DEG C, crude carbinol is isolated again from water cooler 11, crude carbinol is discharged from the bottom of methyl alcohol water cooler 11, enter into flash drum 12, methyl alcohol flash steam is discharged through flash drum 12 decompression, methyl alcohol flash steam is discharged from the upper end of flash drum 12, enter into flash steam separator 14, again after flash steam separator 14 is separated, discharge from the upper end of flash steam separator 14, enter into fuel gas surge tank 6, fuel gas as flame distributor 5-2 uses, reduce the usage quantity of purification coal gas, the methyl alcohol separated through flash drum 12 and flash steam separator 14 enters into methanol outlet pipe 15, discharges through methanol outlet pipe 15,
Two, in present embodiment, the flow of the methane flash steam that flash steam separator 14 upper end produces is 2000m
3/ h, be high heating value mixed gas, methane flash steam enters into fuel gas surge tank 6, mix in fuel gas surge tank 6 with purification coal gas, enter into process furnace 5, burn as raw material, methane flash steam comprises methane, ethane, carbon monoxide, hydrogen, is 25.6MJ/m with reference to calorific value
3burning has fine heats, compare sublimate heated by gas efficiency high a lot, purification coal gas is 13.5MJ/ cubic meter with reference to calorific value, decrease the usage quantity of purification coal gas, bring certain economic benefit, per hour supplement 2000 cubic metres purification coal gas burn in process furnace, by the calculating of purification coal gas 2.5 yuan, per hourly save 5000 yuans, bring certain economic benefit, and methane flash steam gas does not enter in air, environment is not had any impact, there is certain environmental benefit.
Embodiment two: present embodiment with embodiment one difference is: the exit end at water cooler 11 top is connected with the inlet end at compressor 9 top.Other are identical with embodiment one.
Embodiment three: present embodiment and embodiment one or two difference are: be provided with exhaust-valve 13 between flash drum 12 and flash steam separator 14.Other are identical with embodiment one or two.
Embodiment four: present embodiment and embodiment one to three difference are: be provided with tubulation in synthetic tower 10, tubulation is built with catalyzer.Other are identical with embodiment one to three.
Claims (4)
1. one kind processes the device of methyl alcohol flash steam, it is characterized in that a kind of device processing methyl alcohol flash steam comprises purified gas inlet tube (1), first valve (2), second valve (3), 3rd valve (4), process furnace (5), fuel gas surge tank (6), oxygen and water vapour inlet pipe (7), converter (8), compressor (9), synthetic tower (10), water cooler (11), flash drum (12), exhaust-valve (13), flash steam separator (14), methanol outlet pipe (15), Heat Exchanger in Circulating Water System (16) and inlet tower gas interchanger (17),
Heat exchanger tube (5-1) and flame distributor (5-2) is provided with in described process furnace (5); Described purified gas inlet tube (1) is connected with the inlet end of fuel gas surge tank (6) with the inlet end of heat exchanger tube (5-1) respectively; Be provided with the first valve (2) between purified gas inlet tube (1) and heat exchanger tube (5-1), between purified gas inlet tube (1) and fuel gas surge tank (6), be provided with the second valve (3); The exit end of fuel gas surge tank (6) is connected with flame distributor (5-2), and is provided with the 3rd valve (4) between fuel gas surge tank (6) and flame distributor (5-2); The exit end of heat exchanger tube (5-1) is connected with the entrance end of converter (8) with water vapour inlet pipe (7) inlet end respectively with oxygen; The exit end of converter (8) is connected with the inlet end of Heat Exchanger in Circulating Water System (16), and the exit end of Heat Exchanger in Circulating Water System (16) is connected with the inlet end of compressor (9); The exit end of compressor (9) is connected with the inlet end of inlet tower gas interchanger (17), the exit end of inlet tower gas interchanger (17) is connected with the inlet end of synthetic tower (10), and the exit end of synthetic tower (10) is connected with the inlet end of water cooler (11); The exit end of water cooler (11) is connected with the inlet end of flash drum (12); The top exit end of flash drum (12) is connected with the inlet end of flash steam separator (14); The top exit end of flash steam separator (14) is connected with fuel gas surge tank (6); The outlet at bottom end of flash drum (12) is connected with methanol outlet pipe (15) respectively with the outlet at bottom end of flash steam separator (14).
2. a kind of device processing methyl alcohol flash steam according to claim 1, is characterized in that the exit end at water cooler (11) top is connected with the inlet end at compressor (9) top.
3. a kind of device processing methyl alcohol flash steam according to claim 1, is characterized in that being provided with exhaust-valve (13) between flash drum (12) and flash steam separator (14).
4. a kind of device processing methyl alcohol flash steam according to claim 1, it is characterized in that being provided with tubulation in synthetic tower (10), tubulation is built with catalyzer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420707731.5U CN204237725U (en) | 2014-11-21 | 2014-11-21 | A kind of device processing methyl alcohol flash steam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420707731.5U CN204237725U (en) | 2014-11-21 | 2014-11-21 | A kind of device processing methyl alcohol flash steam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204237725U true CN204237725U (en) | 2015-04-01 |
Family
ID=52767242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420707731.5U Expired - Fee Related CN204237725U (en) | 2014-11-21 | 2014-11-21 | A kind of device processing methyl alcohol flash steam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204237725U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104387230B (en) * | 2014-11-21 | 2016-02-10 | 中煤能源黑龙江煤化工有限公司 | A kind of method using the device process methyl alcohol flash steam of process methyl alcohol flash steam |
-
2014
- 2014-11-21 CN CN201420707731.5U patent/CN204237725U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104387230B (en) * | 2014-11-21 | 2016-02-10 | 中煤能源黑龙江煤化工有限公司 | A kind of method using the device process methyl alcohol flash steam of process methyl alcohol flash steam |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150401 Termination date: 20161121 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |