CN110511787A - A kind of novel double-fluidized-bed device of organic solid castoff hydrogen manufacturing - Google Patents
A kind of novel double-fluidized-bed device of organic solid castoff hydrogen manufacturing Download PDFInfo
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- CN110511787A CN110511787A CN201910895888.2A CN201910895888A CN110511787A CN 110511787 A CN110511787 A CN 110511787A CN 201910895888 A CN201910895888 A CN 201910895888A CN 110511787 A CN110511787 A CN 110511787A
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- vaporizer
- fluidized
- combustion chamber
- organic solid
- hydrogen manufacturing
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Links
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 26
- 239000001257 hydrogen Substances 0.000 title claims abstract description 26
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 24
- 239000007787 solid Substances 0.000 title claims abstract description 18
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 239000006200 vaporizer Substances 0.000 claims abstract description 45
- 238000002485 combustion reaction Methods 0.000 claims abstract description 32
- 239000000463 material Substances 0.000 claims abstract description 29
- 230000007246 mechanism Effects 0.000 claims abstract description 11
- 238000004064 recycling Methods 0.000 claims abstract description 5
- 239000007789 gas Substances 0.000 claims description 22
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 11
- 239000003546 flue gas Substances 0.000 claims description 11
- 238000003860 storage Methods 0.000 claims description 11
- 229910052609 olivine Inorganic materials 0.000 claims description 8
- 239000010450 olivine Substances 0.000 claims description 8
- 238000012806 monitoring device Methods 0.000 claims description 5
- 230000008859 change Effects 0.000 claims description 3
- 238000002309 gasification Methods 0.000 description 13
- 239000000571 coke Substances 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 150000002431 hydrogen Chemical class 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002910 solid waste Substances 0.000 description 2
- 230000008016 vaporization Effects 0.000 description 2
- 244000012254 Canarium album Species 0.000 description 1
- 235000009103 Canarium album Nutrition 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 240000007817 Olea europaea Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005243 fluidization Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000010815 organic waste Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
- C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/46—Gasification of granular or pulverulent flues in suspension
- C10J3/54—Gasification of granular or pulverulent fuels by the Winkler technique, i.e. by fluidisation
- C10J3/56—Apparatus; Plants
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/72—Other features
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/05—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste oils
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2200/00—Details of gasification apparatus
- C10J2200/15—Details of feeding means
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0913—Carbonaceous raw material
- C10J2300/0946—Waste, e.g. MSW, tires, glass, tar sand, peat, paper, lignite, oil shale
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0953—Gasifying agents
- C10J2300/0973—Water
- C10J2300/0976—Water as steam
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/16—Integration of gasification processes with another plant or parts within the plant
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/16—Integration of gasification processes with another plant or parts within the plant
- C10J2300/1625—Integration of gasification processes with another plant or parts within the plant with solids treatment
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2209/00—Specific waste
- F23G2209/10—Liquid waste
- F23G2209/102—Waste oil
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Combustion & Propulsion (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
The invention discloses a kind of novel double-fluidized-bed devices of organic solid castoff hydrogen manufacturing, comprising: feeding mechanism, vaporizer, bed material recycling circulator and combustion chamber；Feeding mechanism connects vaporizer lower part feed inlet by feed pipe, and vaporizer top is connected to bed material and recycles circulator, and bed material recycles circulator and is connected to combustion chamber top, and combustion chamber lower part is connected to vaporizer lower part by cross over pipe.The present invention improves hydrogen production rate, reduces tar yield, improves heat utilization rate.
Description
Technical field
The present invention relates to organic solid castoff recycling and harmless treatment device, especially a kind of novel organic solid
Waste device for producing hydrogen.
Background technique
Currently, the device for organic solid castoff hydrogen manufacturing is mainly fixed bed gasification, fluidized gasification, these devices
Have following problems: 1, hydrogen content is low in the gas that gasifies, and is typically only 10%~20%, and the purification difficulty of resource utilization is big, warp
Ji property is poor；2, it is big to generate tar content, subsequent processing device is blocked；3, the external heat source that provides is needed to maintain gasification.
Summary of the invention
The purpose of the present invention is to provide a kind of novel double-fluidized-bed devices of organic solid castoff hydrogen manufacturing, improve hydrogen manufacturing
Rate reduces tar yield, improves heat utilization rate.
To achieve the above object, the invention provides the following technical scheme:
A kind of novel double-fluidized-bed device of organic solid castoff hydrogen manufacturing characterized by comprising feeding mechanism, gasification
Room, bed material recycling circulator and combustion chamber；Feeding mechanism connects vaporizer lower part feed inlet by feed pipe, vaporizer lower part
Combustion chamber lower part is also connected to by cross over pipe obliquely；Circulator is recycled by bed material and is connected on vaporizer in combustion chamber top
Portion；Bottom of combustion chamber connects air blower；Steam pipe is connected in the middle part of vaporizer bottom, cross over pipe；Bed material recycles circulator and gasification
The junction of room connects steam pipe.
Preferably, feeding mechanism includes storage bin, and storage bin connects closed feeding warehouse A and feeding warehouse B；Feeding warehouse A and
Feeding warehouse B connects vaporizer lower part feed inlet by feed pipe.By the way that two closed feeding warehouses are arranged, realization charging switches,
Guarantee feeding warehouse airtightness, the gas for avoiding vaporizer from generating is revealed from feeding warehouse；Also guarantee holding for vaporizer charging simultaneously
Continuous property avoids feed break and influences the thermal cycle of whole equipment.
Preferably, the discharge port of storage bin, the feed inlet of feeding warehouse A and feeding warehouse B and discharge port are equipped with motor-driven valve, side
Just automation control and feed switched discharging.
Preferably, gas analyzer is set at the top of vaporizer at gas outlet, monitors outlet situation on-line.
Preferably, flue gas monitoring device is set at top of combustion chamber flue gas mouth, monitors smoke condition on-line.
Preferably, the vaporizer internal side wall sets multiple triangular baffles, can stop the part generated in vaporizer
Tar, and tar is condensed along triangular baffle and side wall.
Preferably, vaporizer, in combustion chamber using olivine as bed material.
Preferably, vaporizer, combustion chamber are equipped with pressure monitor and temperature monitor, can monitor on-line vaporizer,
The pressure and temperature conditions of combustion chamber.
The content (reaching 40% or more) of hydrogen in gasification gas can be improved in the present invention, reduces tar yield, while entire
Needed when equipment only starts using natural gas as heat source, operation balance after woth no need to increasing any heat source.Firstly, organic solid
Waste is by feeding mechanism quantitative feeding to vaporizing system hydrogen room, and temperature control loads olive at 750~800 DEG C in vaporizer
Canarium album bed material, organic waste carry out anaerobic gasification in vaporizing system hydrogen room, generate high hydrogeneous mixed gas, while part tar
By the baffle of vaporizer, part tar is decomposed again after contacting with the high temperature bed material that combustion chamber loops back, so that
The content for exporting tar is low.Carbon burning room temperature control again 900~950 DEG C, main function be the coke that vaporizer is generated and
The tar of blocking is burned, and heat bed material is generated, and the temperature for maintaining vaporizer is recycled by bed material, reaches self-holding gasification
The purpose of hydrogen manufacturing.
Compared with the prior art, of the invention to have the advantages that first, a whole set of double-fluidized-bed circulation by bed material is made
With forming good fluidization, for the organic solid castoff of low burn value, can control oneself gasification, and heat energy efficiency is high；The second,
High Gas Mixtures Containing Hydrogen is generated, while tar content is small in the case where 400 DEG C of saturated vapors participate in as bed material using olivine；The
Three, vaporizer and combustion chamber be by vapor barrier, will not gas blowby, there is higher gasification efficiency and hydrogen content；4th, a whole set of dress
Configuration solenoid valve, pressure monitor, temperature monitor equipment, gas analyzer, flue gas monitoring device are set, by configuring DCS system,
Automation control and on-line monitoring equipment situation can be achieved, guarantee the safe operation of equipment.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Referring to Fig. 1, in the embodiment of the present invention, a kind of novel double-fluidized-bed device of organic solid castoff hydrogen manufacturing, comprising:
Feeding mechanism, vaporizer 8, bed material recycling circulator 3 and combustion chamber 10；Feeding mechanism includes storage bin 1, storage bin 1 connect into
Feed bin A5 and feeding warehouse B6；The discharge port of storage bin 1, the feed inlet of feeding warehouse A5 and feeding warehouse B6 and discharge port are all provided with electromagnetism
Valve；Feeding warehouse A5 and feeding warehouse B6 connects 8 lower part feed inlet of vaporizer by feed pipe 7, and 8 lower part of vaporizer also passes through obliquely
Cross over pipe 9 be connected to 10 lower part of combustion chamber；Circulator 3 is recycled by bed material and connects 8 top of vaporizer in 10 top of combustion chamber；Burning
10 bottom of room connects air blower；Steam pipe 11 is connected in the middle part of 8 bottom of vaporizer, cross over pipe 9；Bed material recycles circulator 3 and gasification
The junction of room 8 connects steam pipe 11.Using olivine as bed material in vaporizer 8, combustion chamber 10；And it is equipped with pressure monitoring
Device 13 and temperature monitor 14；Vaporizer sets gas analyzer 2 at 8 top gas outlet；Cigarette is set at 10 top flue gas mouth of combustion chamber
Gas monitor 4.Solenoid valve, pressure monitor 13, temperature monitor equipment 14, gas analyzer 2, flue gas in package unit configuration
Monitor 4, by configuring DCS system, it can be achieved that automation control and on-line monitoring equipment situation.
Organic solid castoff is put into storage bin 1 by the present invention, opens 1 discharge port solenoid valve of storage bin, and selectivity is beaten
It drives the solenoid valve of feed bin A5 or feeding warehouse B6 feed inlet and discharge port into, can be fed by feed pipe 7 into vaporizer 8；When
When the material of feeding warehouse is unsnatched, switch another feeding warehouse, guarantees the airtightness of feeding warehouse；Organic solid castoff is in 750-800
DEG C vaporizer 8 in, under the action of olivine bed material and steam, carry out anaerobic gasification, generate the mixed gas of Gao Qing from gas
Change 8 top gas outlet of room to be discharged after the monitoring of gas analyzer 2 analysis, in the tar contact vaporizer 8 that part generates
After triangular baffle 12 and side wall are condensed, in company with the coke granule and olivine bed material generated, pass through 8 lower part of vaporizer
Cross over pipe 9 obliquely enters to temperature in 900-950 DEG C of combustion chamber 10, in the effect of 10 bottom blast machine of combustion chamber
Under, tar and coke granule are sufficiently burned in combustion chamber, so that maintaining temperature at 900-950 DEG C in combustion chamber 10, simultaneously
Also temperature rises olivine bed material therewith in combustion chamber 10, under the blowing of 10 bottom blast machine of combustion chamber, is recycled by bed material
Circulator 3 enters back into vaporizer 8, and high temperature olivine bed material makes 8 temperature of vaporizer maintain control at 750-800 DEG C, reaches
The purpose of self-holding gasification hydrogen-producing；And combustion chamber 10 burns the flue gas generated and passes through supervising for flue gas monitoring device 4 from top flue gas mouth
Survey discharge up to standard；In whole process, due to connecting steam pipe 11 in the middle part of cross over pipe 9, bed material recycles circulator 3 and vaporizer 8
Junction connects steam pipe 11, so that generating flue gas in combustion chamber 10 will not produce with the high hydrogen mixed gas generated in vaporizer 8
Raw gas-blowing phenomenon.
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art,
It is still possible to modify the technical solutions described in the foregoing embodiments, or part of technical characteristic is carried out etc.
With replacement, all within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in this
Within the protection scope of invention.
Claims (7)
1. a kind of novel double-fluidized-bed device of organic solid castoff hydrogen manufacturing characterized by comprising feeding mechanism, vaporizer
(8), bed material recycling circulator (3) and combustion chamber (10)；Feeding mechanism connects the charging of vaporizer (8) lower part by feed pipe (7)
Mouthful, vaporizer (8) lower part also passes through the connection of cross over pipe (9) obliquely combustion chamber (10) lower part；Combustion chamber (10) top passes through
Bed material recycles circulator (3) and connects vaporizer (8) top；Combustion chamber (10) bottom connects air blower；Vaporizer (8) bottom, connection
Steam pipe (11) are connected in the middle part of siphunculus (9)；Bed material recycles circulator (3) and connect steam pipe (11) with the junction of vaporizer (8).
2. a kind of novel double-fluidized-bed device of organic solid castoff hydrogen manufacturing according to claim 1, which is characterized in that into
Material mechanism includes storage bin (1), and storage bin (1) connects closed feeding warehouse A (5) and feeding warehouse B (6)；Feeding warehouse A (5) and into
Feed bin B (6) connects vaporizer (8) lower part feed inlet by feed pipe (7).
3. a kind of novel double-fluidized-bed device of organic solid castoff hydrogen manufacturing according to claim 2, which is characterized in that storage
The discharge port of feed bin (1), the feed inlet of feeding warehouse A (5) and feeding warehouse B (6) and discharge port are equipped with motor-driven valve.
4. a kind of novel double-fluidized-bed device of organic solid castoff hydrogen manufacturing according to claim 1, which is characterized in that institute
It states vaporizer (8) internal side wall and sets multiple triangular baffles (12).
5. a kind of novel double-fluidized-bed device of organic solid castoff hydrogen manufacturing according to claim 1, which is characterized in that gas
Change and sets gas analyzer (2) at gas outlet at the top of room (8).
6. a kind of novel double-fluidized-bed device of organic solid castoff hydrogen manufacturing according to claim 1, which is characterized in that combustion
It burns and sets flue gas monitoring device (4) at flue gas mouth at the top of room (10).
7. a kind of novel double-fluidized-bed device of organic solid castoff hydrogen manufacturing according to claim 1, which is characterized in that gas
Using olivine as bed material in change room (8), combustion chamber (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910895888.2A CN110511787A (en) | 2019-09-21 | 2019-09-21 | A kind of novel double-fluidized-bed device of organic solid castoff hydrogen manufacturing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910895888.2A CN110511787A (en) | 2019-09-21 | 2019-09-21 | A kind of novel double-fluidized-bed device of organic solid castoff hydrogen manufacturing |
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| Publication Number | Publication Date |
|---|---|
| CN110511787A true CN110511787A (en) | 2019-11-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910895888.2A Pending CN110511787A (en) | 2019-09-21 | 2019-09-21 | A kind of novel double-fluidized-bed device of organic solid castoff hydrogen manufacturing |
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|---|---|---|---|---|
| JP2003176486A (en) * | 2001-12-10 | 2003-06-24 | Ebara Corp | Integrated circulating fluidized bed gasifying furnace |
| CN1754945A (en) * | 2004-09-30 | 2006-04-05 | 中国科学院工程热物理研究所 | Double-circulating fluid bed coal gas-steam combined production method and device |
| CN101220298A (en) * | 2007-01-10 | 2008-07-16 | 中国科学院工程热物理研究所 | Thermal decomposition gasification method and device of circulating fluidized bed |
| CN101235321A (en) * | 2008-01-25 | 2008-08-06 | 东南大学 | Indirect gasification device and method for solid fuel |
| EP2146143A2 (en) * | 2008-07-16 | 2010-01-20 | Energie Oberwart Errichtungs GmbH | Method and device for generating a nitrogen-free or practically nitrogen-free gas |
| CN103756731A (en) * | 2014-01-03 | 2014-04-30 | 东南大学 | Interactive cyclic solid fuel gasification device with double fluidized beds and method |
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-
2019
- 2019-09-21 CN CN201910895888.2A patent/CN110511787A/en active Pending
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| EP2146143A2 (en) * | 2008-07-16 | 2010-01-20 | Energie Oberwart Errichtungs GmbH | Method and device for generating a nitrogen-free or practically nitrogen-free gas |
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