CN107267239A - Methanol purge gas processing unit - Google Patents
Methanol purge gas processing unit Download PDFInfo
- Publication number
- CN107267239A CN107267239A CN201710502929.8A CN201710502929A CN107267239A CN 107267239 A CN107267239 A CN 107267239A CN 201710502929 A CN201710502929 A CN 201710502929A CN 107267239 A CN107267239 A CN 107267239A
- Authority
- CN
- China
- Prior art keywords
- air outlet
- hydrogen
- processing unit
- purge gas
- separation device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L3/00—Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
- C07C29/15—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of oxides of carbon exclusively
- C07C29/151—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of oxides of carbon exclusively with hydrogen or hydrogen-containing gases
- C07C29/152—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of oxides of carbon exclusively with hydrogen or hydrogen-containing gases characterised by the reactor used
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The present invention proposes a kind of methanol purge gas processing unit, and the device includes：Supercharging equipment, it is used to be pressurized gas；Hydrogen separation device, it is used to separate the hydrogen in periodic off-gases；There are two air outlets, the first air outlet discharge hydrogen, the second air outlet discharge remaining gas thereon；Air inlet connects the port of going out of the first supercharging equipment；Second air outlet connects the inlet end of the second supercharging equipment；Nitrogen separation device, it is used to separate the nitrogen in periodic off-gases；There are two air outlets, the 3rd air outlet discharge hydrogen, the 4th air outlet discharge remaining gas thereon；Air inlet connects the air outlet of the second supercharging equipment；Carbon dioxide separation device, it is used to separate the carbon dioxide excluded in periodic off-gases；Its air inlet port connects the 4th air outlet of nitrogen separation device.The methanol purge gas processing unit of the present invention, which is effectively reduced, pollutes and improves economic benefit.
Description
Technical field
The present invention relates to a kind of methanol purge gas processing unit, more particularly to a kind of methanol purge gas processing recycled
Device.
Background technology
During methanol production, it is impossible to completely using raw materials for production, many methanol purge gas can be discharged.Methanol
The composition of periodic off-gases is substantially：Periodic off-gases composition hydrogen 75%, CO2 4%, inert gas 15.6%, methanol 0.4% and CO
5%.The noxious materials such as micro methanol and CO are there is in methanol purge gas, it is impossible to directly air is discharged；Exist simultaneously
What content was maximum in periodic off-gases is hydrogen, and directly discharge wastes many resources.Present topmost processing method is direct
Combustion heat supplying, or Hydrogen Separation is come out into after-combustion heat supply.Because there are some non-flammable gas in direct combustion process
Body, especially after hydrogen is separated, non-combustible gas accounts for more than 60%.Its efficiency of combustion is relatively low, and its commercial value compared with
It is low.
The content of the invention
For weak point present in above-mentioned technology, the invention provides a kind of higher methanol purge gas of commercial value
Processing unit.The methanol purge gas processing unit includes：Supercharging equipment, it is used to be pressurized gas；Hydrogen Separation is filled
Put, it is used to separate the hydrogen in periodic off-gases；There are two air outlets, the first air outlet discharge hydrogen, the second outlet thereon
Discharge remaining gas in port；Air inlet connects the port of going out of the first supercharging equipment；The supercharging of second air outlet connection second is set
Standby inlet end；Nitrogen separation device, it is used to separate the nitrogen in periodic off-gases；There are two air outlets, the 3rd outlet thereon
Discharge hydrogen, the 4th air outlet discharge remaining gas in port；Air inlet connects the air outlet of the second supercharging equipment；Titanium dioxide
Carbon separator, it is used to separate the carbon dioxide excluded in periodic off-gases；The 4th of its air inlet port connection nitrogen separation device
Air outlet.
Methanol purge gas enters hydrogen separation device by the pressurization of the first supercharging equipment, and Hydrogen Separation is come out into rear periodic off-gases
Again pass by the pressurization of the second supercharging equipment and isolate nitrogen into nitrogen separation equipment, pass through carbon dioxide separation device again afterwards
Removing carbon dioxide is removed, the gaseous mixture of predominantly carbon monoxide and methane is obtained.
Preferably, the methanol purge gas processing unit also includes：
Hydrogen collection device, it is connected to the first air outlet of the hydrogen separation device；
Nitrogen treatment system, it is connected to the 3rd air outlet of the nitrogen separation device；
Compressor, its air inlet port is connected to the air outlet of the carbon dioxide separation device；
Liquefaction system, its air inlet port is connected to the air outlet of compressor；
LFG collection device, it is connected with liquefaction system.
Methanol purge gas enters hydrogen separation device by the pressurization of the first supercharging equipment, and Hydrogen Separation is come out and used
Collection device gets up Hydrogen collection, and rear periodic off-gases again pass by the pressurization of the second supercharging equipment and enter the separation of nitrogen separation equipment simultaneously
Nitrogen is collected, removing carbon dioxide is removed by carbon dioxide separation device again afterwards, it is mainly the mixed of carbon monoxide and methane to obtain
Close gas.And blender is liquefied and collected using compressor and liquefaction system.
Preferably, the methanol purge gas processing unit also includes：
Hydrogen collection device, it is used to collect hydrogen；
Nitrogen treatment system, it is connected to the 3rd air outlet of nitrogen separation device；
Mixing arrangement, there is an air outlet and two air inlet ports thereon；It is used for hydrogen and passes through carbon dioxide
Mixed gas after separator is mixed；Another the 8th air inlet port connection carbon dioxide separation dress of mixing arrangement
Put；
Part flow arrangement, its air inlet port is connected to the first air outlet of the hydrogen separation device；There are two to go out thereon
Gas port, the 5th air outlet is connected to Hydrogen collection device, and the 6th air outlet is connected to the 7th inlet end of mixing arrangement
Mouthful.
Methanol purge gas enters hydrogen separation device by the pressurization of the first supercharging equipment, and Hydrogen Separation is come out and received
After collecting and being shunted using gas flowmeter, periodic off-gases again pass by the pressurization of the second supercharging equipment and enter nitrogen separation equipment point
From and collect nitrogen, remove removing carbon dioxide by carbon dioxide separation device again afterwards, it is mainly carbon monoxide and first to obtain
The gaseous mixture of alkane.With the hydrogen after shunting methanol is produced by mixing as reactor feed gas circulation.
Preferably, described hydrogen separation device and nitrogen separation device are membrane separator.
Preferably, described supercharging equipment is booster pump.
Preferably, described carbon dioxide separation equipment is membrane separator or aqua calcis.
Preferably, described liquefaction system uses pressurization condensing plant.
Preferably, a gas distribution flowmeter is also connected between described part flow arrangement and mixing arrangement.
At least there is following beneficial effect in the present invention：
The present invention is separated to the hydrogen and nitrogen in methanol purge gas, improves economic benefit.
Carbon monoxide and methane gas in methanol purge gas is collected and condenses compression by the present invention prepares liquefaction
Combustible gas, improves economic benefit.
Carbon monoxide in methanol purge gas and methane gas are mixed quantitative hydrogen and melted down by the present invention, are added
The yield of methanol, improves business efficiency.
Further advantage, target and the feature of the present invention embodies part by following explanation, and part will also be by this
The research and practice of invention and be understood by the person skilled in the art.
Brief description of the drawings
Fig. 1 is the schematic diagram of the methanol purge gas processing unit of the present invention；
Fig. 2 is the schematic diagram of the gas recovery of the methanol purge gas processing unit of the present invention；
Fig. 3 is the schematic diagram of the periodic off-gases circular response of the methanol purge gas processing unit of the present invention.
Embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings, to make those skilled in the art with reference to specification text
Word can be implemented according to this.
Such as Fig. 1-shown in Fig. 3, the invention provides a kind of higher methanol purge gas processing unit of commercial value.It is described
Methanol purge gas processing unit includes：Supercharging equipment, it is used to be pressurized gas；Hydrogen separation device, it is used to separate
Hydrogen in periodic off-gases；There are two air outlets thereon, the first air outlet discharge hydrogen, the second air outlet discharges its residual air
Body；Air inlet connects the port of going out of the first supercharging equipment；Second air outlet connects the inlet end of the second supercharging equipment；Nitrogen
Separator, it is used to separate the nitrogen in periodic off-gases；There are two air outlets thereon, the 3rd air outlet discharges hydrogen, the
Four air outlets discharge remaining gas；Air inlet connects the air outlet of the second supercharging equipment；Carbon dioxide separation device, it is used
The carbon dioxide in periodic off-gases is excluded in separation；Its air inlet port connects the 4th air outlet of nitrogen separation device.Wherein, hydrogen
Air separation and nitrogen separation device are membrane separator.Supercharging equipment is booster pump.Carbon dioxide separation equipment is film point
From device or aqua calcis.
Methanol purge gas enters hydrogen separation device by the pressurization of the first supercharging equipment, and Hydrogen Separation is come out into rear periodic off-gases
Again pass by the pressurization of the second supercharging equipment and isolate nitrogen into nitrogen separation equipment, pass through carbon dioxide separation device again afterwards
Removing carbon dioxide is removed, the gaseous mixture of predominantly carbon monoxide and methane is obtained.
Preferably, the methanol purge gas processing unit also includes：
Hydrogen collection device, it is connected to the first air outlet of the hydrogen separation device；
Nitrogen treatment system, it is connected to the 3rd air outlet of the nitrogen separation device；
Compressor, its air inlet port is connected to the air outlet of the carbon dioxide separation device；
Liquefaction system, its air inlet port is connected to the air outlet of compressor；
LFG collection device, it is connected with liquefaction system.
Methanol purge gas enters hydrogen separation device by the pressurization of the first supercharging equipment, and Hydrogen Separation is come out and used
Collection device gets up Hydrogen collection, and rear periodic off-gases again pass by the pressurization of the second supercharging equipment and enter the separation of nitrogen separation equipment simultaneously
Nitrogen is collected, removing carbon dioxide is removed by carbon dioxide separation device again afterwards, it is mainly the mixed of carbon monoxide and methane to obtain
Close gas.And blender is liquefied and collected using compressor and liquefaction system.Wherein, hydrogen separation device and nitrogen point
It is membrane separator from device.Supercharging equipment is booster pump.Carbon dioxide separation equipment is that membrane separator or calcium hydroxide are molten
Liquid.Liquefaction system uses pressurization condensing plant.
Preferably, the methanol purge gas processing unit also includes：
Hydrogen collection device, it is used to collect hydrogen；
Nitrogen treatment system, it is connected to the 3rd air outlet of nitrogen separation device；
Mixing arrangement, there is an air outlet and two air inlet ports thereon；It is used for hydrogen and passes through carbon dioxide
Mixed gas after separator is mixed；Another the 8th air inlet port connection carbon dioxide separation dress of mixing arrangement
Put；
Part flow arrangement, its air inlet port is connected to the first air outlet of the hydrogen separation device；There are two to go out thereon
Gas port, the 5th air outlet is connected to Hydrogen collection device, and the 6th air outlet is connected to the 7th inlet end of mixing arrangement
Mouthful.Wherein, hydrogen separation device and nitrogen separation device are membrane separator.Supercharging equipment is booster pump.Carbon dioxide separation
Equipment is membrane separator or aqua calcis.A gas distribution flow is also connected between part flow arrangement and mixing arrangement
Meter.
Methanol purge gas enters hydrogen separation device by the pressurization of the first supercharging equipment, and Hydrogen Separation is come out and received
After collecting and being shunted using gas flowmeter, periodic off-gases again pass by the pressurization of the second supercharging equipment and enter nitrogen separation equipment point
From and collect nitrogen, remove removing carbon dioxide by carbon dioxide separation device again afterwards, it is mainly carbon monoxide and first to obtain
The gaseous mixture of alkane.With the hydrogen after shunting methanol is produced by mixing as reactor feed gas circulation.
Although embodiment of the present invention is disclosed as above, it is not restricted in specification and embodiment listed
With.It can be applied to various suitable the field of the invention completely., can be easily for those skilled in the art
Realize other modification.Therefore under the universal limited without departing substantially from claim and equivalency range, the present invention is not limited
In specific details and shown here as the legend with description.
Claims (8)
1. a kind of methanol purge gas processing unit, it is characterised in that the device includes：
Supercharging equipment, it is used to be pressurized gas；
Hydrogen separation device, it is used to separate the hydrogen in periodic off-gases；There are two air outlets, the discharge of the first air outlet thereon
Hydrogen, the second air outlet discharge remaining gas；Air inlet connects the port of going out of the first supercharging equipment；Second air outlet connects
Connect the inlet end of the second supercharging equipment；
Nitrogen separation device, it is used to separate the nitrogen in periodic off-gases；There are two air outlets, the discharge of the 3rd air outlet thereon
Hydrogen, the 4th air outlet discharge remaining gas；Air inlet connects the air outlet of the second supercharging equipment；
Carbon dioxide separation device, it is used to separate the carbon dioxide excluded in periodic off-gases；Its air inlet port connects nitrogen separation
4th air outlet of device.
2. methanol purge gas processing unit according to claim 1, it is characterised in that the methanol purge gas processing unit
Also include：
Hydrogen collection device, it is connected to the first air outlet of the hydrogen separation device；
Nitrogen treatment system, it is connected to the 3rd air outlet of the nitrogen separation device；
Compressor, its air inlet port is connected to the air outlet of the carbon dioxide separation device；
Liquefaction system, its air inlet port is connected to the air outlet of compressor；
LFG collection device, it is connected with liquefaction system.
3. methanol purge gas processing unit according to claim 1, it is characterised in that the methanol purge gas processing unit
Also include：
Hydrogen collection device, it is used to collect hydrogen；
Nitrogen treatment system, it is connected to the 3rd air outlet of nitrogen separation device；
Mixing arrangement, there is an air outlet and two air inlet ports thereon；It is used for hydrogen and passes through carbon dioxide separation
Mixed gas after device is mixed；Another the 8th air inlet port connection carbon dioxide separation device of mixing arrangement；
Part flow arrangement, its air inlet port is connected to the first air outlet of the hydrogen separation device；There are two outlet sides thereon
Mouthful, the 5th air outlet is connected to Hydrogen collection device, and the 6th air outlet is connected to the 7th air inlet port of mixing arrangement.
4. methanol purge gas processing unit according to claim 1, it is characterised in that described hydrogen separation device and nitrogen
Air separation is membrane separator.
5. methanol purge gas processing unit according to claim 1, it is characterised in that described supercharging equipment is supercharging
Pump.
6. methanol purge gas processing unit according to claim 1, it is characterised in that described carbon dioxide separation equipment
For membrane separator or aqua calcis.
7. methanol purge gas processing unit according to claim 2, it is characterised in that described liquefaction system is used
Pressurize condensing plant.
8. methanol purge gas processing unit according to claim 3, it is characterised in that described part flow arrangement is with mixing dress
A gas distribution flowmeter is also connected between putting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710502929.8A CN107267239A (en) | 2017-06-27 | 2017-06-27 | Methanol purge gas processing unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710502929.8A CN107267239A (en) | 2017-06-27 | 2017-06-27 | Methanol purge gas processing unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107267239A true CN107267239A (en) | 2017-10-20 |
Family
ID=60070317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710502929.8A Pending CN107267239A (en) | 2017-06-27 | 2017-06-27 | Methanol purge gas processing unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107267239A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1248482A (en) * | 1999-08-30 | 2000-03-29 | 伍仁兴 | Pressure variable adsorptive method for separating hydrogen nitrogen and pure carbon dioxide from exchange air |
| CN1680002A (en) * | 2005-02-01 | 2005-10-12 | 四川天一科技股份有限公司 | Pressure varying adsorption of recovering effective components from relaxed methanol gas |
| CN101850209A (en) * | 2010-06-08 | 2010-10-06 | 中煤能源黑龙江煤化工有限公司 | Vent gas treatment method and treatment device |
| CN104974014A (en) * | 2015-07-03 | 2015-10-14 | 赛鼎工程有限公司 | Production method for methanol |
| WO2015181386A2 (en) * | 2014-05-29 | 2015-12-03 | Statoil Petroleum As | Compact hydrocarbon wellstream processing |
| CN204958383U (en) * | 2015-08-05 | 2016-01-13 | 陕西延长石油兴化化工有限公司 | Recycle system of tail gas is retrieved to methanol synthesis hydrogen |
| CN105460891A (en) * | 2014-09-03 | 2016-04-06 | 中国石油天然气股份有限公司 | Recycling method and system for methanol purge gas |
-
2017
- 2017-06-27 CN CN201710502929.8A patent/CN107267239A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1248482A (en) * | 1999-08-30 | 2000-03-29 | 伍仁兴 | Pressure variable adsorptive method for separating hydrogen nitrogen and pure carbon dioxide from exchange air |
| CN1680002A (en) * | 2005-02-01 | 2005-10-12 | 四川天一科技股份有限公司 | Pressure varying adsorption of recovering effective components from relaxed methanol gas |
| CN101850209A (en) * | 2010-06-08 | 2010-10-06 | 中煤能源黑龙江煤化工有限公司 | Vent gas treatment method and treatment device |
| WO2015181386A2 (en) * | 2014-05-29 | 2015-12-03 | Statoil Petroleum As | Compact hydrocarbon wellstream processing |
| CN105460891A (en) * | 2014-09-03 | 2016-04-06 | 中国石油天然气股份有限公司 | Recycling method and system for methanol purge gas |
| CN104974014A (en) * | 2015-07-03 | 2015-10-14 | 赛鼎工程有限公司 | Production method for methanol |
| CN204958383U (en) * | 2015-08-05 | 2016-01-13 | 陕西延长石油兴化化工有限公司 | Recycle system of tail gas is retrieved to methanol synthesis hydrogen |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207745676U (en) | The recovery and processing system of technique of trichlorosilane synthetic tail gas | |
| CN104945224B (en) | Methanol production process | |
| CN105013587A (en) | Freeze grinding system | |
| CN102946974A (en) | Carbon dioxide separation unit and carbon dioxide separation method | |
| US9597630B2 (en) | Gas scrubber system and method | |
| CN102112391A (en) | Process and apparatus for generating and purifying syngas | |
| CN104909456A (en) | Landfill leachate anaerobic biogas purification method | |
| CN107267239A (en) | Methanol purge gas processing unit | |
| CN106753627A (en) | A kind of rubbish landfill gas cleaning treatment system | |
| US4729891A (en) | Hydrogen generating method | |
| CN105967184B (en) | A kind of technique of conversion gas combined production of ammonia and soda ash | |
| CN103980093A (en) | Method for preparing methanol from coke oven gas | |
| KR101555158B1 (en) | Method and system for treating sludge | |
| CN103182232B (en) | The processing method of micro-dust in a kind of calcium carbide stove exhaust | |
| RU2010103702A (en) | METHOD FOR SYNTHESIS AND METHOD FOR SYNTHESIS WITH METHOD OF HYDROGEN FROM BLOWING GAS SYNTHESIS CIRCUIT | |
| CN210560263U (en) | Device for preparing Fischer-Tropsch wax by utilizing coke oven gas | |
| CN104370700B (en) | The reclaiming system of thick alcohol solution gas and method in coke-oven gas methanol technics | |
| CN107514873A (en) | A kind of device and method of synthesis gas isolation of purified | |
| US8591626B2 (en) | Method and apparatus for separation of gas mixtures | |
| CN207634109U (en) | A kind of blowout prevention filter device for gas drilling construction | |
| CN109928366A (en) | A kind of energy-saving hydrogen peroxide production process and its device and system | |
| CN219586052U (en) | Membrane method biogas purification system for leachate treatment | |
| CN105400627B (en) | Wheat juice eddy flow groove precipitation hops grain and its residual wheat juice separation and recovery system | |
| CN205603542U (en) | System for flue gas system of utilization liquefied natural gas | |
| CN104132505B (en) | A kind of waste gas in synthesizing ammonia reclaims comprehensive utilization device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171020 |
|
| RJ01 | Rejection of invention patent application after publication |