CN102755810A - Rotor type pressure swing adsorption gas separation device - Google Patents
Rotor type pressure swing adsorption gas separation device Download PDFInfo
- Publication number
- CN102755810A CN102755810A CN201210272751XA CN201210272751A CN102755810A CN 102755810 A CN102755810 A CN 102755810A CN 201210272751X A CN201210272751X A CN 201210272751XA CN 201210272751 A CN201210272751 A CN 201210272751A CN 102755810 A CN102755810 A CN 102755810A
- Authority
- CN
- China
- Prior art keywords
- adsorbent
- adsorption
- gas
- continuously
- rotor
- 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
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/06—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with moving adsorbents, e.g. rotating beds
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
- C01B13/02—Preparation of oxygen
- C01B13/0229—Purification or separation processes
- C01B13/0248—Physical processing only
- C01B13/0259—Physical processing only by adsorption on solids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2256/00—Main component in the product gas stream after treatment
- B01D2256/12—Oxygen
Abstract
The invention discloses a rotor type pressure swing adsorption gas separation device, wherein a rotor is arranged in a shell; an adsorption region and a desorption region are divided according to formed different pressures; the rotor comprises a disc with a plurality of empty grids which is formed by a plurality of partition plates; the empty grids are filled with an adsorbent and are sealed by using porous plates or nets at the two ends in the axial direction; during work, the rotor rotates, an adsorbent is driven to continuously move and circulate at the adsorption region and the desorption region; feed gas and/or flushing gas regionally pass (passes) through the adsorbent layer in direction crossed with the adsorbent movement direction, so that the feed gas is continuously separated and purified at the adsorption region; and saturated adsorbent is continuously decompressed or/and flushed and regenerated at the desorption region, so that product gas is continuously and stably produced. The rotor type pressure swing adsorption gas separation device has the advantages of overcoming the defect of frequent switching of an adsorption tower existing in the conventional pressure swing adsorption gas separation device, low energy consumption, high yield, easiness in running and operation, small land occupation and small using amount of the adsorbent, is extremely suitable for the fields of oxygen enriched combustion, oxygen enriched and pure oxygen application of industrial kilns and can also be used for separation and purification industries of other gases.
Description
Technical field
The present invention is a kind of rotator type pressure swing adsorption gas separation device, is used for oxygen-enriched combusting or other oxygen enrichments and pure oxygen application industry, also can be used for other gas and separates purifying industrial, belongs to gas and separates purification, oxygen enrichment and pure oxygen applied technical field.
Background technology
Produce oxygen-enriched air at present and mainly contain three kinds of methods: Deep Cooling Method, membrane separation process and pressure swing adsorption method.The Deep Cooling Method principle is a cryogenic rectification, compresses air, cool off, liquefy, and utilizes the difference of gas with various boiling point to carry out rectifying the nitrogen carrier of oxygen is separated.This method is Lin De professor invention in 1902, is that the traditional handicraft of making oxygen on a large scale also is the main method of present large-scale industry system oxygen, China's oxygen making amount 80% by this method completion.Characteristics are that the high system of gas purity gas scale is big, but the big investment of compression cooling power consumption is big, and start is complicated.
It is to rely on gas with various in film, to dissolve with the difference of diffusion coefficient to realize that gas separates that film separates oxygenerating technology.When air under certain driving force (pressure differentials of film both sides) effect; After the fast oxygen of infiltration rate sees through film; In the per-meate side of film by enrichment, thereby the low relatively nitrogen molecule of permeability is trapped in the purpose that the delay side of film reaches oxygen and nitrogen separation in the air.Membrane material is generally polyphosphazene polymer condensating fiber filtering layer, and subject matter is that the film air permeance resistance is big thereby system energy consumption is high at present, and it is limited to make oxygen concentration simultaneously.
Transformation adsorbed gas isolation technics is to grow up in the sixties in last century, realizes first that by U.S. combinating carbide company (UCC) transformation adsorbs the industrialization of four bed process technology.This technology is to rely on molecular sieve to realize absorption and regeneration to the specific gas selective absorption and along with pressure changes, thereby reproduction speed is fast, energy consumption is low, along with the development development in recent years of adsorbent technology is very fast.Single fixedly adsorption tower operation, because adsorbent needs desorption and regeneration, absorption all is step.Therefore pressure-swing absorption apparatus at least by two in addition nearly the dozens of adsorption tower compose in parallel, the absorption of adsorbent bed and desorption and regeneration are hocketed.Because need frequently to switch to take turns to operate between a plurality of adsorption towers to make that the pressure-swing absorption apparatus production capacity is limited, power consumption increases, floor space is big, system complex.
It is that oxygen concentration is 21% air that present kiln used more; Wherein contain 78% do not participate in burning nitrogen take away burning mass heat energy; Reduce ignition temperature; The more important thing is big and exhaust gas volumn ambassador kiln system equipment amplification increasing investment, owing to a large amount of nitrogen get into the discharge capacity that the combustion zone has increased nitrogen oxide, also increased the discharging of sulfur dioxide on the other hand because of the oxygen concentration deficiency owing to combustion-supporting air quantity.Realize the Industrial Stoves oxygen-enriched combusting, need system oxygen scale big, operation energy consumption is low, the simple oxygen enrichment gas producing technology of operation.
Summary of the invention
What the present invention proposed is a kind of rotator type pressure swing adsorption gas separation device, is intended to overcome the existing existing above-mentioned defective of pressure swing adsorption gas separation device, and it is low to have energy consumption; Floor space is little; The adsorbent consumption is little, and the unit gas production is big, and operation is simple; Invest advantages such as low, be well suited for like large-scale industry oxygen-enriched combustings such as cement kiln, Industrial Boilers.
Technical solution of the present invention: its structure comprises housing and rotor, and its rotor 6 is installed in the housing, is divided into adsorption zone and desorption zone according to formed different pressures; Described rotor comprises the disk by several formed a plurality of spaces of dividing plate, fills up adsorbent in the space, and two ends are sealed with porous plate or net vertically; Rotor rotation during work; Driving adsorbent moves and circulation at adsorption zone and desorption zone continuously; Unstripped gas and/or purge gas are passed adsorbent layer to intersect at adsorbent moving direction subregion; Unstripped gas is purified by continuous the separation at adsorption zone, and saturated adsorbent is reduced pressure or/and flushing regeneration in desorption zone continuously.
Advantage of the present invention: rotor rotation during work; Driving adsorbent moves and circulation at adsorption zone and desorption zone continuously; Unstripped gas passes adsorbent layer to intersect at the adsorbent moving direction at adsorption zone, therefore at adsorption zone owing to freshly attach agent and be moved into continuously with saturated adsorbent and be continuously removed, the unstripped gas purification and separation process is carried out continuously; Saturated adsorbent is reduced pressure with the same manner or/and flushing regeneration realizes that continous-stable produces product gas in desorption zone continuously simultaneously.Avoided the frequent switching adsorption tower disadvantage of existing pressure swing adsorption gas separation device, and then reduced operation energy consumption, increased gas production, be easy to operation, it is simple to have system simultaneously, and floor space is little, and the adsorbent consumption is little, invests advantages such as low.Be well suited for also can be used for other gas and separating purifying industrial like oxygen-enriched combusting such as cement kiln, Industrial Boiler and oxygen enrichment, pure oxygen application.
Description of drawings
Accompanying drawing 1 is the system schematic of rotator type pressure swing adsorption gas separation device.
Accompanying drawing 2 is structural representations of rotor.
Accompanying drawing 3 is the cross-sectional view of overlooking of Fig. 2.
1 is the rotator type pressure swing adsorption gas separation device among the figure, the 2nd, and raw material gas inlet, the 3rd, the outlet of finished product gas, the 4th, purge gas import, the 5th, Waste gas outlet; The 6th, rotor, the 7th, adsorbent, the 8th, adsorption zone, the 9th, desorption zone, the 10th, air blast; The 11st, adsorption zone pressure-regulating valve, the 12nd, desorption zone pressure-regulating valve, the 13rd, exhaust blower, the 14th, rotating shaft; The 15th, hollow disk, the 16th, dividing plate, the 17th, porous plate or net, the 18th, equal fluid layer.
The specific embodiment
Contrast accompanying drawing 1, its structure comprises housing and rotor 6,
Raw material gas inlet 2, finished product gas outlet 3, purge gas import 4, Waste gas outlet 5 are installed on the described housing.
Be divided into adsorption zone 8 and desorption zone 9 according to the pressure difference in the rotator type pressure-swing absorption apparatus, rely on rotor dividing plate 16 to isolate each other and keep the different operating pressure in two districts.
Described adsorption zone 8 produces high pressure owing to linking to each other with air blast 10; Making the unstripped gas special component be adsorbed the agent selectivity in this district absorbs; Forming product gas discharges through product gas outlet 3; For keeping the required high pressure of adsorption zone adsorbent work, the product gas outlet pipeline is provided with control valve 11, reduces control valve 11 aperture adsorption zones 8 pressure and raises.
Described desorption zone 9 is discharged by exhaust blower 13 through waste gas outlet 5 after filter dry purge gas through purge gas import 4 entering desorption zone 9, saturated adsorbent being washed desorb owing to linking to each other with exhaust blower 13.Purge gas import department is provided with control valve 12, can keep desorption zone negative pressure or normal pressure through regulating this valve opening, with guarantee to saturated adsorbent effectively decompression when emphasical negative pressure desorption effect, can reduce or without purge gas or/and the flushing desorption and regeneration.
Claims (2)
1. the rotator type pressure swing adsorption gas separation device is characterized in that comprising housing and rotor, and its rotor is installed in the housing, is divided into adsorption zone and desorption zone according to formed different pressures; Described rotor comprises the disk by several formed a plurality of spaces of dividing plate, fills up adsorbent in the space, and two ends are sealed with porous plate or net vertically; During work; Rotor rotation; Drive adsorbent and move continuously and circulation at adsorption zone and desorption zone, unstripped gas and/or purge gas are passed adsorbent layer to intersect at adsorbent moving direction subregion, unstripped gas is separated at adsorption zone continuously purify; Saturated adsorbent is reduced pressure or/and flushing regeneration realizes that continous-stable produces product gas in desorption zone continuously.
2. rotator type pressure swing adsorption gas separation device according to claim 1; It is characterized in that at described adsorption zone; Fresh attach agent and be moved into continuously with saturated adsorbent and be continuously removed, and unstripped gas passes adsorbent layer to intersect at the adsorbent moving direction, unstripped gas is separated continuously purify; The adsorbent that is different from the adsorption tower of existing pressure swing adsorption gas separation device is not mobile, thereby absorption and desorption process are interrupted and hocket with regard to single adsorption tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210272751XA CN102755810A (en) | 2012-08-02 | 2012-08-02 | Rotor type pressure swing adsorption gas separation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210272751XA CN102755810A (en) | 2012-08-02 | 2012-08-02 | Rotor type pressure swing adsorption gas separation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102755810A true CN102755810A (en) | 2012-10-31 |
Family
ID=47050600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210272751XA Pending CN102755810A (en) | 2012-08-02 | 2012-08-02 | Rotor type pressure swing adsorption gas separation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102755810A (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103432863A (en) * | 2013-09-10 | 2013-12-11 | 周小山 | Pressure swing adsorption device |
| CN105013291A (en) * | 2014-05-01 | 2015-11-04 | 刘海 | Carrying type molecule capture and separation device |
| CN105289196A (en) * | 2015-11-11 | 2016-02-03 | 烟台艾森信息技术股份有限公司 | Adsorption separation device and system |
| WO2017165976A1 (en) | 2016-03-31 | 2017-10-05 | Inventys Thermal Technologies Inc. | Adsorptive gas separator with reduced thermal conductivity |
| CN108096990A (en) * | 2016-11-25 | 2018-06-01 | 中国石油化工股份有限公司 | A kind of adsorption separation device |
| CN108686510A (en) * | 2017-03-29 | 2018-10-23 | 富士通将军股份有限公司 | Absorbing unit and air purifier |
| CN109647132A (en) * | 2018-12-29 | 2019-04-19 | 山东师范大学 | A kind of rotary active carbon flue gas desulfurizing device |
| CN110759318A (en) * | 2019-11-15 | 2020-02-07 | 湖南一特电子医用工程股份有限公司 | Algorithm-based medical oxygen generation equipment with stable performance |
| CN111054179A (en) * | 2018-10-17 | 2020-04-24 | 上海深城环保设备工程有限公司 | Scanning desorption adsorption concentration device |
| CN111659229A (en) * | 2020-06-30 | 2020-09-15 | 浙江勤策空分设备有限公司 | Pressure swing adsorption oxygen equipment |
| CN113101781A (en) * | 2021-05-20 | 2021-07-13 | 萍乡市华顺环保化工填料有限公司 | Novel molecular sieve drying device |
| CN113117452A (en) * | 2021-04-16 | 2021-07-16 | 连云港欧亚气体有限公司 | Pressure swing adsorption device is used in production of high-purity oxygen |
| CN114229844A (en) * | 2021-12-02 | 2022-03-25 | 四川天人化学工程有限公司 | Improved process for preparing carbon monoxide by pressure swing adsorption |
| CN115253598A (en) * | 2022-07-12 | 2022-11-01 | 青岛海湾化工设计研究院有限公司 | For CO2Trapped tower absorption membrane contactor |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS544893A (en) * | 1977-06-14 | 1979-01-13 | Ishikawajima Harima Heavy Ind Co Ltd | Continuous type ozone adding unit |
| JPH04265114A (en) * | 1991-02-18 | 1992-09-21 | Osaka Gas Co Ltd | Adsorbing device for low-concentration solvent-containing gas |
| JP3297140B2 (en) * | 1993-05-20 | 2002-07-02 | 三菱重工業株式会社 | Rotary gas separator |
| CN1642618A (en) * | 2002-03-14 | 2005-07-20 | 探索空气技术公司 | Gas separation apparatus and system by combined pressure swing and displacement purge |
| US7037358B2 (en) * | 2000-12-11 | 2006-05-02 | The Boc Group, Inc. | PSA with adsorbents sensitive to contaminants |
| JP2009011941A (en) * | 2007-07-05 | 2009-01-22 | Techno Ryowa Ltd | Removal system for volatile organic matter by resin |
| CN201361513Y (en) * | 2008-11-13 | 2009-12-16 | 嘉园环保股份有限公司 | Rotating-wheel type organic waste gas adsorption and desorption device |
| US20110011260A1 (en) * | 2009-06-08 | 2011-01-20 | Mario Caggiano | Microwave reactivation system for standard and explosion-proof dehumidification system |
-
2012
- 2012-08-02 CN CN201210272751XA patent/CN102755810A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS544893A (en) * | 1977-06-14 | 1979-01-13 | Ishikawajima Harima Heavy Ind Co Ltd | Continuous type ozone adding unit |
| JPH04265114A (en) * | 1991-02-18 | 1992-09-21 | Osaka Gas Co Ltd | Adsorbing device for low-concentration solvent-containing gas |
| JP3297140B2 (en) * | 1993-05-20 | 2002-07-02 | 三菱重工業株式会社 | Rotary gas separator |
| US7037358B2 (en) * | 2000-12-11 | 2006-05-02 | The Boc Group, Inc. | PSA with adsorbents sensitive to contaminants |
| CN1642618A (en) * | 2002-03-14 | 2005-07-20 | 探索空气技术公司 | Gas separation apparatus and system by combined pressure swing and displacement purge |
| JP2009011941A (en) * | 2007-07-05 | 2009-01-22 | Techno Ryowa Ltd | Removal system for volatile organic matter by resin |
| CN201361513Y (en) * | 2008-11-13 | 2009-12-16 | 嘉园环保股份有限公司 | Rotating-wheel type organic waste gas adsorption and desorption device |
| US20110011260A1 (en) * | 2009-06-08 | 2011-01-20 | Mario Caggiano | Microwave reactivation system for standard and explosion-proof dehumidification system |
Cited By (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103432863B (en) * | 2013-09-10 | 2015-03-11 | 周小山 | Pressure swing adsorption device |
| WO2015035694A1 (en) * | 2013-09-10 | 2015-03-19 | Zhou Xiaoshan | Pressure swing adsorption apparatus |
| US9731242B2 (en) | 2013-09-10 | 2017-08-15 | Ip Tech Pte. Ltd. | Pressure swing adsorption device |
| CN103432863A (en) * | 2013-09-10 | 2013-12-11 | 周小山 | Pressure swing adsorption device |
| CN105013291A (en) * | 2014-05-01 | 2015-11-04 | 刘海 | Carrying type molecule capture and separation device |
| CN105289196B (en) * | 2015-11-11 | 2018-07-24 | 烟台艾森信息技术股份有限公司 | A kind of adsorption separation device and system |
| CN105289196A (en) * | 2015-11-11 | 2016-02-03 | 烟台艾森信息技术股份有限公司 | Adsorption separation device and system |
| EP3426380A4 (en) * | 2016-03-31 | 2020-01-15 | Inventys Thermal Technologies Inc. | Adsorptive gas separator with reduced thermal conductivity |
| US11014040B2 (en) | 2016-03-31 | 2021-05-25 | Svante Inc. | Adsorptive gas separator |
| CN109414641A (en) * | 2016-03-31 | 2019-03-01 | 英万茨热科技有限公司 | With the adsorbed gas separator for reducing thermal conductivity |
| WO2017165976A1 (en) | 2016-03-31 | 2017-10-05 | Inventys Thermal Technologies Inc. | Adsorptive gas separator with reduced thermal conductivity |
| CN109414641B (en) * | 2016-03-31 | 2023-11-07 | 英万茨热科技有限公司 | Adsorption gas separator with reduced thermal conductivity |
| CN108096990A (en) * | 2016-11-25 | 2018-06-01 | 中国石油化工股份有限公司 | A kind of adsorption separation device |
| CN108686510A (en) * | 2017-03-29 | 2018-10-23 | 富士通将军股份有限公司 | Absorbing unit and air purifier |
| CN111054179A (en) * | 2018-10-17 | 2020-04-24 | 上海深城环保设备工程有限公司 | Scanning desorption adsorption concentration device |
| CN111054179B (en) * | 2018-10-17 | 2022-02-11 | 上海深城环保设备工程有限公司 | Scanning desorption adsorption concentration device |
| CN109647132A (en) * | 2018-12-29 | 2019-04-19 | 山东师范大学 | A kind of rotary active carbon flue gas desulfurizing device |
| CN110759318A (en) * | 2019-11-15 | 2020-02-07 | 湖南一特电子医用工程股份有限公司 | Algorithm-based medical oxygen generation equipment with stable performance |
| CN111659229B (en) * | 2020-06-30 | 2020-12-08 | 浙江勤策空分设备有限公司 | Pressure swing adsorption oxygen equipment |
| CN112516749A (en) * | 2020-06-30 | 2021-03-19 | 浙江勤策空分设备有限公司 | Pressure swing adsorption oxygen equipment |
| CN112516749B (en) * | 2020-06-30 | 2022-07-05 | 上海海尔医疗科技有限公司 | Pressure swing adsorption oxygen equipment |
| CN111659229A (en) * | 2020-06-30 | 2020-09-15 | 浙江勤策空分设备有限公司 | Pressure swing adsorption oxygen equipment |
| CN113117452A (en) * | 2021-04-16 | 2021-07-16 | 连云港欧亚气体有限公司 | Pressure swing adsorption device is used in production of high-purity oxygen |
| CN113101781A (en) * | 2021-05-20 | 2021-07-13 | 萍乡市华顺环保化工填料有限公司 | Novel molecular sieve drying device |
| CN114229844A (en) * | 2021-12-02 | 2022-03-25 | 四川天人化学工程有限公司 | Improved process for preparing carbon monoxide by pressure swing adsorption |
| CN114229844B (en) * | 2021-12-02 | 2024-03-22 | 四川天人化学工程有限公司 | Improved process for preparing carbon monoxide by pressure swing adsorption |
| CN115253598A (en) * | 2022-07-12 | 2022-11-01 | 青岛海湾化工设计研究院有限公司 | For CO2Trapped tower absorption membrane contactor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102755810A (en) | Rotor type pressure swing adsorption gas separation device | |
| US10821393B2 (en) | Simulated moving bed system for CO2 separation, and method of same | |
| US7396387B2 (en) | Pressure swing adsorption process for large capacity oxygen production | |
| CN102439123B (en) | There is the application of zeolite character crystalline microporous material in natural gas processing process of RHO structure | |
| Yang et al. | Experimental and simulation study on efficient CH4/N2 separation by pressure swing adsorption on silicalite-1 pellets | |
| WO2005097298A1 (en) | Rotary adsorbent contactors for drying, purification and separation of gases | |
| KR20010052184A (en) | Pressure swing adsorption gas separation method, using adsorbents with high intrinsic diffusivity and low pressure ratios | |
| JP2007516059A (en) | Method for prepurifying air in an accelerated TSA cycle | |
| CN102227248A (en) | Carbon dioxide purification using activated carbon as nox and so2 sorbent / catalyst | |
| US20230211276A1 (en) | Method for capture of carbon dioxide from ambient air and corresponding adsorber structures with a plurality of parallel surfaces | |
| CN101733070A (en) | X-type zeolite separation material and preparation method thereof | |
| WO2021252695A1 (en) | Continuous-motion direct air capture system | |
| CN202778207U (en) | Rotor type pressure swing adsorption gas separating device | |
| US10413859B2 (en) | Adsorber with rotary dryer | |
| CN114835142B (en) | Method for recovering carbon dioxide from industrial kiln tail gas and producing lithium carbonate | |
| CN101249368A (en) | Rotary type pressure-variable adsorption gas separating method | |
| CN101049911A (en) | Method for producing oxygen through six towers adsorption | |
| US10029205B2 (en) | Two stage adsorbent and process cycle for fluid separations | |
| CN102580468B (en) | Method for implementing trapping and separation of CO2 in flue gas by adopting magnesium-based absorbent | |
| CN203529931U (en) | Device for preparing oxygen from air | |
| CN102826509A (en) | Equipment for purifying general hydrogen gas into high-purity hydrogen gas | |
| CN202785635U (en) | Adsorptive hydrogen purifying device | |
| Wang et al. | Carbon dioxide capture | |
| CN202740982U (en) | Pressure swing adsorption gas separating device of moving bed | |
| CN102755811A (en) | Moving bed pressure varying adsorption gas separation device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121031 |