CN105126538A - Efficient multi-tank intake type pressure swing adsorption purifier - Google Patents
Efficient multi-tank intake type pressure swing adsorption purifier Download PDFInfo
- Publication number
- CN105126538A CN105126538A CN201510575279.0A CN201510575279A CN105126538A CN 105126538 A CN105126538 A CN 105126538A CN 201510575279 A CN201510575279 A CN 201510575279A CN 105126538 A CN105126538 A CN 105126538A
- Authority
- CN
- China
- Prior art keywords
- purification
- purification tank
- gas
- tank
- swing adsorption
- 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
Abstract
The invention provides an efficient multi-tank intake type pressure swing adsorption purifier, which comprises a plurality of purification tank groups, wherein each purification tank group consists of two or more purification tanks which are connected in parallel or in series, first connecting bodies for connecting the lower ends of the purification tanks and second connecting bodies for connecting the upper ends of the purification tanks. The multi-tank intake type pressure swing adsorption purifier further comprises a product gas buffer tank and an exhaust gas treatment end. An intake passage, an intake valve, a cleaning passage, a cleaning valve, an exhaust gas discharging passage, an exhaust gas discharging valve and a purified gas leading-out passage are shared by the purification tanks in each purification tank group, and each purification tank in each purification tank group is provided with a purified gas outlet check valve. According to the multi-tank intake type pressure swing adsorption purifier, the purification efficiency of the pressure swing adsorption purifier is effectively improved, and the raw material cost is reduced, and manual maintenance and transportation cost is also reduced; electromagnetic valves and pressure sensors on the connecting bodies on the purification tanks of the pressure swing adsorption purifier are arranged upside down at the lower sides, so that convenience is brought for the packaging and transportation of equipment.
Description
Technical field
The present invention relates to a kind of gas purifying device utilizing pressure-variable adsorption principle, especially relate to a kind of multiple tank air admission type Pressure Swing Adsorption device efficiently.
Background technology
Pressure Swing Adsorption gas technology utilizes adsorbent under high pressure adsorbing contaminant component, under low pressure desorption of impurities component, thus by gas purification a kind of technology out.
Disclose the example of PSA system in patent US3430418 after, patent US3564816, US3986849 have successively carried out optimizing research on the former basis, more unit is had again to study aspects such as PSA purification process, equalization step, use Valve controlling and improve afterwards, but the complexity still existed in structure and PSA circulation, and purifier all biases toward maximization.Study for above problem, devise the Pressure Swing Adsorption device of small portable, describe in detail in patent of invention 201410302126.4 and 201410543516.
On the basis of application number 201410302126.4 and 201410543516, our unit is studied further to Pressure Swing Adsorption device, the present invention is different from tank of purifying described in above patent, by adopting the technical approach of multiple tank air inlet, diffusing air current, thus shorten the inlet period of PSA purification process, improve PSA (pressure-variable adsorption) purification efficiency further.
Summary of the invention
The invention provides a kind of multiple tank air admission type Pressure Swing Adsorption device efficiently, this Pressure Swing Adsorption device adopts the mode of multiple tank parallel connection (or series connection), air inlet simultaneously, valve used does not increase, and devises connector on purification tank (the second connector) upper valve, the inverted mode of sensor parts.Its technical scheme is as described below:
A kind of multiple tank air admission type Pressure Swing Adsorption device efficiently, comprise multiple purification tank group, each purification tank group is made up of the purification tank of two or more parallel connection or series connection, connects each first connector of purification tank lower end and the second connector of upper end; Described multiple tank air admission type Pressure Swing Adsorption device also comprises gas product surge tank and exhaust-gas treatment end; Each purification tank in each purification tank group shares an inlet channel and an intake valve, share a flushing channel and a cleaning valve, and share a waste gas passing away and an exhaust exit valve, share a purification conductance and go out passage, each purification tank in each purification tank group respectively has a purification gas Outlet check valves.
Described multiple tank air admission type Pressure Swing Adsorption device comprises at least two in parallel, air inlets simultaneously and the purification tank group be simultaneously vented, or comprise the purification tank group of at least two series connection, respectively containing at least one adsorbent layer, a unstripped gas entrance, waste gas outlet, a product gas outlet and a purgative gas entrance in each purification tank in described purification tank group.
Described first connector comprises the lower mounting hole site of each purification tank;
Comprise gas access to be purified and coupled to be purified total gas inlet passage, described total gas inlet passage to be purified is connected with the inlet channel of each purification tank group, and the inlet channel of described each purification tank group is all provided with intake valve mounting hole site;
The inlet channel of described each purification tank group is connected, for gas of supplying raw materials with the lower mounting hole site of purification tank each in this group;
Comprise purifier outlet port and the total passing away of coupled waste gas, the total passing away of described waste gas is connected with the waste gas passing away of each purification tank group, the waste gas passing away of described each purification tank group is all provided with the mounting hole site of exhaust exit valve;
The waste gas passing away of described each purification tank group is connected, for combustion gas with the lower mounting hole site of purification tank each in this group.
Described second connector comprises the upper mounting hole site of each purification tank and coupled check valve mounting hole site, and upper mounting hole site and check valve mounting hole site are all on the second connector;
Comprise the purification gas passage of purification gas overall channel and coupled each purification tank group, the described purification gas passage of each purification tank group is connected, for discharging gas product with the check valve mounting hole site of each purification tank of this group;
Comprise the purgative gas passage of purgative gas overall channel and coupled each purification tank group, the purgative gas passage of described each purification tank group is all provided with cleaning valve mounting hole site;
Described purgative gas overall channel is provided with cleaning flow throttle valve mounting hole site;
The purgative gas passage of described each purification tank group is connected, for providing purgative gas with the upper mounting hole site of purification tank each in this group.
The port of export of described purification gas overall channel is provided with counterbalance valve, is connected and installed by counterbalance valve connector, and the rear end of described counterbalance valve is gas product surge tank or directly connects client.
Described second connector is provided with magnetic valve, and described magnetic valve comprises solenoid purge valve and choke valve, and cleaning valve effect is: in the purifier course of work, when often organizing the pressurising of purification tank and cleaning, opens corresponding cleaning valve; Choke valve is used to control the flow for the clean gas of purify tank pressurising and cleaning.
Described magnetic valve is inverted on the second connector, or is just standing on the second connector.
In described purification tank, top-down structure is followed successively by: the second connector, upper spacer assembly, adsorbent layer, lower spacer assembly, turbulent humidity barrier (as porous plastics bead) the first connector.
Described adsorbent layer is one or more layers, and the adsorbent on sorbent used layer is wherein one or more combinations in active carbon, alundum (Al2O3) and molecular sieve.
Described gas product surge tank can be integrated with purification tank, mode as described in patent of invention 201410302126.4, or independent existence, and it is provided with gas product entrance, product gas outlet.
The present invention effectively improves the purification efficiency of Pressure Swing Adsorption device, and when the single 13X molecular sieve of same employing, the air inlet simultaneously of two tank is compared with single canister incoming gas formula, and purification efficiency is increased to 80% by 66%, and the Pressure Swing Adsorption device life-span also significantly improves.Meanwhile, effectively reduce the equipment volume of unit hydrogen output, the hydrogen producing 1 cubic metre, by original 26L equipment volume, is contracted to 11L equipment volume.Reducing of volume both decreased the cost of raw material, decreased the cost of manual maintenance and transport.On Pressure Swing Adsorption device purification tank, connector solenoid and pressure sensor are inverted in downside, are convenient to encapsulation and the transport of equipment.
Accompanying drawing explanation
Fig. 1 is the structural plan sketch of the first connector described in embodiment;
Fig. 2 is the structural plan sketch of the second connector described in embodiment;
Fig. 3 is that in embodiment, cleaning valve is just standing on the schematic diagram on the second connector;
Fig. 4 is that in embodiment, cleaning valve is inverted in the schematic diagram on the second connector;
Fig. 5 is tank internal structure schematic diagram of purifying in embodiment.
Detailed description of the invention
The PSA Gas purifier having multiple tank air inlet simultaneously and be vented simultaneously of the present invention, comprises air inlet simultaneously and the many purifications tank group be simultaneously vented, the first connector being connected purification tank lower end and upper end respectively and the second connector, gas product surge tank and exhaust-gas treatment end.
Described Pressure Swing Adsorption device comprises at least 2 in parallel, air inlets simultaneously and the purification tank group be simultaneously vented, or the purification tank group of at least 2 series connection, respectively containing at least one adsorbent layer, a unstripped gas entrance, waste gas outlet, a product gas outlet and a purgative gas entrance in each purification tank in each purification tank group.
Described gas product surge tank can be integrated with purification tank, also can independently exist, and this gas product surge tank has gas product entrance, product gas outlet.
In the present embodiment, be designed to two purifying tank Pressure Swing Adsorption devices of two groups of parallel connections, gas product surge tank stand alone type, purification tank group one comprises purification tank one and purification tank two, purification tank group two comprises purification tank three and purification tank four, the structure diagram of the first connector 1 in above-mentioned Pressure Swing Adsorption device as shown in Figure 1, unstripped gas entrance, the waste gas outlet of described first connector 1 and purification tank are connected, and it comprises:
The lower mounting hole site 2 of purification tank one, the lower mounting hole site 202 of purification tank two,
The lower mounting hole site 3 of purification tank two, the lower mounting hole site 303 of purification tank three;
Gas access 10 to be purified and gas inlet passage 11 to be purified, purification tank group one intake valve mounting hole site 9 and purification tank group one inlet channel 5, purification tank group two intake valve mounting hole site 8 and purification tank group two inlet channel 4;
Purifier outlet port 15 and waste gas passing away 14, the mounting hole site 13 of the waste gas passing away 7 of purification tank group one and the exhaust exit valve of purifying tank group one, the mounting hole site 12 of the waste gas passing away 6 of purifying tank group two and the exhaust exit valve of purifying tank group two.
The second connector 16 structure diagram in above-mentioned Pressure Swing Adsorption device as shown in Figure 2, product gas outlet, the purgative gas entrance of purification tank second connector 16 and purification tank are connected, it comprises the upper mounting hole site 17 of purification tank one, the upper mounting hole site 177 of purification tank two, the upper mounting hole site 18 of purification tank three, the upper mounting hole site 188 of purification tank four;
The check valve mounting hole site 19 of purification tank one, the check valve mounting hole site 199 of purification tank two, the check valve mounting hole site 20 of purification tank three, the check valve mounting hole site 200 of purification tank four, the purification gas passage 29 that purification tank one and purification tank two share, the purification gas passage 30 that purification tank three and purification tank four share, and the purification gas passage 21 that purification tank group one and purification tank group two share.
Purification tank group one cleaning valve mounting hole site 26 and purgative gas passage 24 thereof, purification tank group two cleaning valve mounting hole site 25 and purgative gas passage 23 thereof, purification tank group one and purification tank group two share purgative gas passage 27.
The connector 22 of counterbalance valve and cleaning flow throttle valve mounting hole site 28, the counterbalance valve effect that wherein counterbalance valve connector connects is, while stable output products gas, ensures that Pressure Swing Adsorption device and front end operating pressure thereof are stablized by preposition back pressure; Cleaning flow throttle valve installing hole institute install choke valve be used to control to clean for tank of purifying and pressurising time gas product flow.
Visible, in same purification tank group, the purification tank of two or more parallel connection or series connection has an inlet channel and an intake valve, have a flushing channel and a cleaning valve, and have a waste gas passing away and an exhaust exit valve, have a purification conductance and go out passage, respectively have a purification gas Outlet check valves.
The port of export of purification gas passage 21 has a shared counterbalance valve, and be connected and installed by counterbalance valve connector 22, its rear end is product gas surge tank or directly connects client, if gas product is hydrogen, then client is as hydrogen fuel cell.
When this purifier second connector 16 solenoid 161 is installed, can be inverted on the second connector 16, as shown in Figure 4, also can just stand on the second connector 16, as shown in Figure 3.
In described purification tank, structure should comprise as shown in Figure 4 from top to bottom: be down upper spacer assembly 33, adsorbent layer 34, lower spacer assembly 35, turbulent humidity barrier (as porous plastics bead) 36 and the first connector 1 successively from the second connector 16.
Described adsorbent layer 34 can be one deck also can be multilayer, it is sorbent used can be in active carbon, alundum (Al2O3) and molecular sieve one or more.
For effect of the present invention is better described, three embodiments providing a comparative example and correspond, adopt the Pressure Swing Adsorption device of the mode of single canister incoming gas, for three purification tanks, the parts such as the second connector solenoid, pressure sensor adopt mode belonging to Fig. 3, are just standing on the upside of the second connector.Same employing individual layer 13X molecular sieve is adsorbent, the cumulative volume of design Pressure Swing Adsorption device is 114L, pass into the hydrogen-rich gas that gas component is hydrogen volume content about 75%, hydrogen-rich gas intake is 150SLP, when ensureing that purifying hydrogen of hydrogen purity is 99.999%, pure hydrogen output 72SLP, accumulative duration is no less than 2000 hours, hydrogen purification efficiency about 66%.As calculated, produce the pure hydrogen of 1 cubic metre, the volume of Pressure Swing Adsorption device is 26L.The Pressure Swing Adsorption device cover that this comparative example adopts there are the parts such as rough magnetic valve, pressure sensor, then need consider the protection question of projecting part during encapsulation, and encapsulation volume need increase upper process part is about 5L, time mobile, at least need two manpowers simultaneously.
Embodiment 1:
This embodiment is preferred version, this embodiment adopts the Pressure Swing Adsorption device of the multiple tank of foregoing invention intake method simultaneously in parallel,, three group purifying tanks in parallel for two tank, and the parts such as the second connector solenoid, pressure sensor adopt mode belonging to Fig. 3, are inverted on the downside of the second connector.Individual layer 13X molecular sieve is adopted to be adsorbent, the cumulative volume of design Pressure Swing Adsorption device is 50L, pass into the hydrogen-rich gas that gas component is hydrogen volume content about 75%, hydrogen-rich gas intake is 150SLP, when ensureing that purifying hydrogen of hydrogen purity is 99.999%, pure hydrogen output 84SLP, accumulative duration is no less than 4000 hours, and hydrogen purification efficiency is greater than 80%.As calculated, produce the pure hydrogen of 1 cubic metre, the volume of Pressure Swing Adsorption device is 11L.The upper and lower front cover of Pressure Swing Adsorption device that this embodiment adopts is all regular plane, only according to monnolithic case sized package, need need not consider the protection question of projecting part, and small volume during encapsulation, a people and removable.
Embodiment 2:
This embodiment adopts the Pressure Swing Adsorption device of the multiple tank of foregoing invention intake method simultaneously in parallel,, three group purifying tanks in parallel for two tank, the parts such as the second connector solenoid, pressure sensor adopt mode belonging to Fig. 3, are just standing on the upside of the second connector.Individual layer 13X molecular sieve is adopted to be adsorbent, the cumulative volume of design Pressure Swing Adsorption device is 50L, pass into the hydrogen-rich gas that gas component is hydrogen volume content about 75%, hydrogen-rich gas intake is 150SLP, when ensureing that purifying hydrogen of hydrogen purity is 99.999%, pure hydrogen output 84SLP, accumulative duration is no less than 4000 hours, and hydrogen purification efficiency is greater than 80%.As calculated, produce the pure hydrogen of 1 cubic metre, the volume of Pressure Swing Adsorption device is 11L.In this embodiment, Pressure Swing Adsorption device cover has the parts such as rough magnetic valve, pressure sensor, then need consider the protection question of projecting part during encapsulation, and encapsulation volume need increase upper process part is about 5L.
Embodiment 3:
This embodiment adopts the Pressure Swing Adsorption device of the multiple tank series connection intake method of foregoing invention, and for double series tank, three groups of purifying tanks, and the parts such as the second connector solenoid, pressure sensor adopt mode belonging to Fig. 4, are inverted on the downside of the second connector.Individual layer 13X molecular sieve is adopted to be adsorbent, the cumulative volume of design Pressure Swing Adsorption device is 50L, pass into the hydrogen-rich gas that gas component is hydrogen volume content about 75%, hydrogen-rich gas intake is 150SLP, when ensureing that purifying hydrogen of hydrogen purity is 99.999%, pure hydrogen output is greater than 84LP, and accumulative duration is no less than 2000 hours.The upper and lower front cover of Pressure Swing Adsorption device that this embodiment adopts is all regular plane, only according to monnolithic case sized package, need need not consider the protection question of projecting part, and small volume during encapsulation, a people and removable.Which is applicable to and client that equipment volume less higher to hydrogen quality requirement.
Visible with comparing of comparative example by three embodiments, the present invention effectively improves the purification efficiency of Pressure Swing Adsorption device, both decreases the cost of raw material, decreases the cost of manual maintenance and transport.On Pressure Swing Adsorption device purification tank, connector solenoid and pressure sensor are inverted in downside, are convenient to encapsulation and the transport of equipment.
Claims (9)
1. an efficient multiple tank air admission type Pressure Swing Adsorption device, it is characterized in that: comprise multiple purification tank group, each purification tank group is made up of the purification tank of two or more parallel connection or series connection, connects each first connector of purification tank lower end and the second connector of upper end; Described multiple tank air admission type Pressure Swing Adsorption device also comprises gas product surge tank and exhaust-gas treatment end; Each purification tank in each purification tank group shares an inlet channel and an intake valve, share a flushing channel and a cleaning valve, and share a waste gas passing away and an exhaust exit valve, share a purification conductance and go out passage, each purification tank in each purification tank group respectively has a purification gas Outlet check valves.
2. efficient multiple tank air admission type Pressure Swing Adsorption device according to claim 1, it is characterized in that: described multiple tank air admission type Pressure Swing Adsorption device comprises at least two in parallel, air inlets simultaneously and the purification tank group be simultaneously vented, or comprise the purification tank group of at least two series connection, respectively containing at least one adsorbent layer, a unstripped gas entrance, waste gas outlet, a product gas outlet and a purgative gas entrance in each purification tank in described purification tank group.
3. efficient multiple tank air admission type Pressure Swing Adsorption device according to claim 1, is characterized in that: described first connector comprises the lower mounting hole site of each purification tank;
Comprise gas access to be purified and coupled to be purified total gas inlet passage, described total gas inlet passage to be purified is connected with the inlet channel of each purification tank group, and the inlet channel of described each purification tank group is all provided with intake valve mounting hole site;
The inlet channel of described each purification tank group is connected, for gas of supplying raw materials with the lower mounting hole site of purification tank each in this group;
Comprise purifier outlet port and the total passing away of coupled waste gas, the total passing away of described waste gas is connected with the waste gas passing away of each purification tank group, the waste gas passing away of described each purification tank group is all provided with the mounting hole site of exhaust exit valve;
The waste gas passing away of described each purification tank group is connected, for combustion gas with the lower mounting hole site of purification tank each in this group.
4. efficient multiple tank air admission type Pressure Swing Adsorption device according to claim 1, is characterized in that: described second connector comprises the upper mounting hole site of each purification tank and coupled check valve mounting hole site;
Comprise the purification gas passage of purification gas overall channel and coupled each purification tank group, the described purification gas passage of each purification tank group is connected, for discharging gas product with the check valve mounting hole site of each purification tank of this group;
Comprise the purgative gas passage of purgative gas overall channel and coupled each purification tank group, the purgative gas passage of described each purification tank group is all provided with cleaning valve mounting hole site;
Described purgative gas overall channel is provided with cleaning flow throttle valve mounting hole site;
The purgative gas passage of described each purification tank group is connected, for providing purgative gas with the upper mounting hole site of purification tank each in this group.
5. efficient multiple tank air admission type Pressure Swing Adsorption device according to claim 4, it is characterized in that: the port of export of described purification gas overall channel is provided with counterbalance valve, be connected and installed by counterbalance valve connector, the rear end of described counterbalance valve is gas product surge tank or directly connects client.
6. efficient multiple tank air admission type Pressure Swing Adsorption device according to claim 1, is characterized in that: described second connector is provided with magnetic valve, and described magnetic valve is inverted on the second connector, or is just standing on the second connector.
7. efficient multiple tank air admission type Pressure Swing Adsorption device according to claim 1, is characterized in that: in described purification tank, top-down structure is followed successively by: the second connector, upper spacer assembly, adsorbent layer, lower spacer assembly, turbulent humidity barrier (as porous plastics bead) and the first connector.
8. efficient multiple tank air admission type Pressure Swing Adsorption device according to claim 7, it is characterized in that: described adsorbent layer is one or more layers, the adsorbent on sorbent used layer is wherein one or more combinations in active carbon, alundum (Al2O3) and molecular sieve.
9. efficient multiple tank air admission type Pressure Swing Adsorption device according to claim 1, is characterized in that: described gas product surge tank can be integrated with purification tank, or independent existence, and it is provided with gas product entrance, product gas outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510575279.0A CN105126538A (en) | 2015-09-10 | 2015-09-10 | Efficient multi-tank intake type pressure swing adsorption purifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510575279.0A CN105126538A (en) | 2015-09-10 | 2015-09-10 | Efficient multi-tank intake type pressure swing adsorption purifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105126538A true CN105126538A (en) | 2015-12-09 |
Family
ID=54712316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510575279.0A Pending CN105126538A (en) | 2015-09-10 | 2015-09-10 | Efficient multi-tank intake type pressure swing adsorption purifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105126538A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110813024A (en) * | 2019-11-13 | 2020-02-21 | 宁波申江科技股份有限公司 | Pressure swing adsorption type gas purifier for methanol recombinant fuel power generation system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5906674A (en) * | 1997-12-16 | 1999-05-25 | The Boc Group, Inc. | Process and apparatus for separating gas mixtures |
| CN1328863A (en) * | 2000-06-19 | 2002-01-02 | 杨皓 | Reciprocating variable-pressure adsorption process |
| CN1386565A (en) * | 2002-04-29 | 2002-12-25 | 成都天立化工科技有限公司 | Process for enriching oxygen in air by two-stage pressure swing adsorption |
| CN201930684U (en) * | 2010-09-29 | 2011-08-17 | 中国舰船研究设计中心 | Non-deep-cold transforming, adsorbing and separating device for oxygen and argon mixture |
| CN104028077A (en) * | 2014-06-27 | 2014-09-10 | 北京氢璞创能科技有限公司 | Pressure swing adsorption gas purifier |
-
2015
- 2015-09-10 CN CN201510575279.0A patent/CN105126538A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5906674A (en) * | 1997-12-16 | 1999-05-25 | The Boc Group, Inc. | Process and apparatus for separating gas mixtures |
| CN1328863A (en) * | 2000-06-19 | 2002-01-02 | 杨皓 | Reciprocating variable-pressure adsorption process |
| CN1386565A (en) * | 2002-04-29 | 2002-12-25 | 成都天立化工科技有限公司 | Process for enriching oxygen in air by two-stage pressure swing adsorption |
| CN201930684U (en) * | 2010-09-29 | 2011-08-17 | 中国舰船研究设计中心 | Non-deep-cold transforming, adsorbing and separating device for oxygen and argon mixture |
| CN104028077A (en) * | 2014-06-27 | 2014-09-10 | 北京氢璞创能科技有限公司 | Pressure swing adsorption gas purifier |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110813024A (en) * | 2019-11-13 | 2020-02-21 | 宁波申江科技股份有限公司 | Pressure swing adsorption type gas purifier for methanol recombinant fuel power generation system |
| WO2021093396A1 (en) * | 2019-11-13 | 2021-05-20 | 宁波申江科技股份有限公司 | Pressure swing adsorption type gas purifier for use in methanol recombinant fuel power generation system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1231282C (en) | Low air-gap adsorption system and its application | |
| EP2599537A1 (en) | Exhaust gas processing system | |
| CN102883791B (en) | The method cleared the pollution off from natural gas | |
| CN1479646A (en) | PSA with adsorbents sensitive to contaminants | |
| CN210845780U (en) | VOCs tail gas desorption gas recovery system | |
| CN105126538A (en) | Efficient multi-tank intake type pressure swing adsorption purifier | |
| CN203212325U (en) | Molecular sieve desorption and regeneration structure for VPSA (vacuum pressure swing adsorption) oxygen generating device | |
| CN104843655A (en) | Green grain storage dedicated nitrogen preparation system for grain depot | |
| CN105858610A (en) | Highly-efficient molecular sieve oxygen generator | |
| CN218867160U (en) | Pump oxygen intake system for fuel cell | |
| CN102580458A (en) | Multi-order vacuumizing pressure swing adsorption process | |
| CN206886670U (en) | Pressure-variable adsorption multitower oxygen generation system | |
| CN102698563A (en) | High purity and high recovery rate methane concentration production process and implementing device thereof | |
| CN214477571U (en) | Low-tail-emission fuel cell air processing system using molecular sieve, fuel cell system and vehicle | |
| CN207324434U (en) | A kind of vacuum pressure swing adsorption system for oxygen production with product gas transition tank | |
| CN210522175U (en) | Two-stage purifier | |
| CN100469686C (en) | Method and equipment for separating oxygen from air | |
| CN201988309U (en) | Methanol purge gas treatment system | |
| US10525402B2 (en) | Method for producing oxygen by VPSA comprising four adsorbers | |
| CN209771750U (en) | Oil gas emission processing device of filling station | |
| CN204840591U (en) | Plateau is with on -vehicle oxygen -generation system | |
| CN202778194U (en) | Air purification device | |
| US10497999B2 (en) | Metal air battery including multi module air supply unit | |
| CN215742754U (en) | A plateau oxygenation device for truck | |
| RU2724262C1 (en) | Cleaning system having pipelines located at different levels in direction of height |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151209 |