CN202740982U - Pressure swing adsorption gas separating device of moving bed - Google Patents
Pressure swing adsorption gas separating device of moving bed Download PDFInfo
- Publication number
- CN202740982U CN202740982U CN 201220380308 CN201220380308U CN202740982U CN 202740982 U CN202740982 U CN 202740982U CN 201220380308 CN201220380308 CN 201220380308 CN 201220380308 U CN201220380308 U CN 201220380308U CN 202740982 U CN202740982 U CN 202740982U
- Authority
- CN
- China
- Prior art keywords
- tower
- adsorption
- adsorption tower
- gas
- adsorbent
- 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.)
- Expired - Lifetime
Links
Images
Abstract
The utility model relates to a pressure swing adsorption gas separating device of a moving bed. The pressure swing adsorption gas separating device is characterized by comprising an adsorption tower and a resolution tower. The resolution tower is connected onto the adsorption tower in series, and an air locking device is respectively arranged at feeding ports and discharging ports of the adsorption tower and the resolution tower so as to maintain different working pressure required by the adsorption tower and the resolution tower. A discharging air locking device of the adsorption tower is connected with a discharging air locking device of the feeding tower through a lifting device. During work, adsorbent in the adsorption tower and the resolution tower moves from the top to the bottom in whole flow mode, and the adsorbent moves and circulates continuously in the adsorption tower and the resolution tower through the lifting device. The pressure swing adsorption gas separating device has the advantages that due to continuous leading-in of fresh adsorbent and continuous leading-out of saturated adsorbent in the adsorption tower, raw material gas is separated and purified continuously, simultaneously the saturated adsorbent is decompressed or/and washed and regenerated in the adsorption tower, and continuous stable production of product gas is achieved. The defect of the existing adsorption gas separating device that adsorption tower is switched frequently is overcome, operation energy consumption is reduced, gas production increased, and simultaneously the pressure swing adsorption gas separating device has the advantages of being small in adsorbent amount and low in investment.
Description
Technical field
The utility model is a kind of moving bed 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 separating-purifying industry, belongs to gas separating-purifying, oxygen enrichment and pure oxygen applied technical field.
Background technology
Produce at present oxygen-enriched air and mainly contain three kinds of methods: Deep Cooling Method, membrane separation process and pressure swing adsorption method.The Deep Cooling Method principle is cryogenic rectification, air compressing, cooling, liquefaction, utilizes the difference of gas with various boiling point to carry out rectifying the nitrogen carrier of oxygen is separated.The method is Lin De professor invention in 1902, and the traditional handicraft that is on a large scale oxygen processed also is the main method of present large-scale industry oxygen processed, and 80% of China's oxygen making amount is finished by the method.Characteristics are that the high gas scale processed of gas purity is large, but the large investment of compression cooling power consumption is large, and start is complicated.
It is to rely on gas with various to dissolve in film 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 relatively low 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 large thereby system energy consumption is high at present, and oxygen concentration processed is limited simultaneously.
PSA Gas Separation Technology is to grow up in the sixties in last century, is realized first the industrialization of pressure-variable adsorption four bed process technology by U.S. combinating carbide company (UCC).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, make the sorption and desorption regeneration of adsorbent bed hocket typical four tower pressure swing adsorption gas separation device structural group prejudice accompanying drawings 1.Take turns to operate so that the pressure-swing absorption apparatus production capacity is limited owing to need frequently to switch between a plurality of adsorption towers, power consumption increases, and floor space is large, system complex.
It is that oxygen concentration is 21% air that present kiln used more, wherein contain 78% nitrogen that does not participate in burning and take away a large amount of combustion heat energies, reduce ignition temperature, the more important thing is large owing to combustion-supporting air quantity and the amplification of exhaust gas volumn ambassador kiln system equipment increases investment, owing to a large amount of nitrogen enter the discharge capacity that the combustion zone has increased nitrogen oxide, also increased the discharging of sulfur dioxide because of the oxygen concentration deficiency on the other hand.Realize the Industrial Stoves oxygen-enriched combusting, need oxygen scale processed large, operation energy consumption is low, the simple oxygen enrichment gas producing technology of operation.
Summary of the invention
The utility model proposes a kind of moving bed pressure swing adsorption gas separation device, under moving bed be to be not move (title fixed bed) for the adsorbent in the adsorption tower of existing pressure swing adsorption gas separation device, be intended to overcome the existing defects of the latter, it is low to have energy consumption, the adsorbent consumption is little, the advantages such as the unit gas production is large are well suited for such as large-scale industry oxygen-enriched combustings such as cement kiln, Industrial Boilers.
Technical solution of the present utility model: it is characterized in that comprising adsorption tower and Analytic Tower, Analytic Tower is series on the adsorption tower, and be provided with Analytic Tower charging lock wind apparatus, adsorption tower charging lock wind apparatus and adsorption tower discharging lock wind apparatus, join by lifting device between adsorption tower discharging lock wind apparatus and Analytic Tower charging lock wind apparatus, described lifting device is mechanical elevator or Pneumatic conveying pump.
Advantage of the present utility model: in adsorption tower, adsorbent is with bulk flow mode continuous moving from top to bottom, unstripped gas passes adsorbent layer in the adsorption tower with reflux type, simultaneously adsorbent is reduced pressure with the same manner in desorber continuously or/and wash to circulate after the regeneration and enter adsorption tower, therefore in adsorption tower because the continuous supplementation of fresh adsorbent and being continuously removed of saturated adsorption agent, the unstripped gas purification and separation process is carried out continuously, realize that continous-stable produces gas product.Avoided existing pressure swing adsorption gas separation device frequently to switch the adsorption tower disadvantage, and then reduced operation energy consumption, increased gas production, it is little to have simultaneously an adsorbent consumption, invests the advantages such as low.Be well suited for also can be used for other gas separating-purifying industry such as the oxygen-enriched combusting such as cement kiln, Industrial Boiler and oxygen enrichment, pure oxygen application.
Description of drawings
Accompanying drawing 1 is that typical four tower pressure swing adsorption gas separation device structures form schematic diagram.
Accompanying drawing 2 moving bed pressure swing adsorption gas separation device structural representations.
1 is adsorption tower among the figure, the 2nd, and adsorbent, the 3rd, adsorption tower centrum air-permeable layer, the 4th, raw material gas inlet, 5 adsorption tower discharging lock wind apparatus, the 6th, product gas outlet, the 7th, adsorption column pressure control valve, the 8th, air blast, the 9th, bypass valve, the 10th, lifting device, the 11st, Analytic Tower charging lock wind apparatus, the 12nd, Analytic Tower, the 13rd, desorber centrum air-permeable layer, the 14th, purge gas import, the 15th, adsorption tower charging lock wind apparatus, the 16th, Waste gas outlet, the 17th, exhaust blower, the 18th, Analytic Tower pressure-regulating valve.
The specific embodiment
Contrast accompanying drawing 2, its structure comprises adsorption tower 1 and Analytic Tower 12, Analytic Tower 12 is series on the adsorption tower 1, and is provided with Analytic Tower charging lock wind apparatus 11, adsorption tower charging lock wind apparatus 15 and adsorption tower discharging lock wind apparatus 5, to keep the needed different operating pressure of adsorption tower and Analytic Tower.11 of adsorption tower discharging lock wind apparatus 5 and Analytic Tower charging lock wind apparatus join by lifting device 10, and described lifting device 10 can be mechanical elevator or Pneumatic conveying pump, are used for sending into Analytic Tower from the saturated adsorption agent that adsorption tower draws off.
During work, agent is moved from top to bottom in the bulk flow mode in adsorption tower and the Analytic Tower, forms adsorbents in adsorption tower and desorber continuous moving and circulation by lifting device 10.
In adsorption tower because the continuous supplementation of fresh adsorbent and being continuously removed of saturated adsorption agent make unstripped gas by continuous separating-purifying; Equally, adsorbent is reduced pressure at desorber continuously or/and wash regeneration, realization continous-stable generation gas product.
In the described adsorption tower 1, adsorbent is continuous moving from top to bottom, the continuous supplementation of fresh adsorbent and the saturated adsorption agent be continuously removed, make unstripped gas by continuous separating-purifying; The adsorbent that is different from the adsorption tower that has pressure swing adsorption gas separation device now is (the title fixed bed) that does not move, thereby sorption and desorption process interruption hockets.
Described lifting device 10 can adopt mechanical conveyor or Pneumatic conveyer, and this Pneumatic conveyer can be designed to have simultaneously the adsorbent analytical capabilities, thereby the desirable desorber 12 that disappears.
Adsorption tower centrum air-permeable layer 3 and raw material gas inlet 4 are established in the bottom of described adsorption tower 1, adsorption tower centrum air-permeable layer 3 and raw material gas inlet 4 are joined, adsorption tower 1 links to each other with adsorption column pressure control valve 7 by product gas outlet 6, from the high pressure feed of air blast 8 through import 4, pass adsorbent layer by adsorption tower centrum air-permeable layer 3 even adverse currents, and keep adsorbent to the required high pressure of unstripped gas special component absorption, regulate control valve 7 and can control adsorption column pressure.
Unstripped gas from air blast 8 also can directly be sneaked into gas product to regulate gas product concentration by bypass valve 9.
The bottom of described Analytic Tower 12 is provided with Analytic Tower centrum air-permeable layer 13 and purge gas import 14, Analytic Tower centrum air-permeable layer 13 and purge gas import 14 are joined, Analytic Tower 12 links to each other with exhaust blower 17 by Waste gas outlet 16, and purge gas is passed adsorbent layer by Analytic Tower centrum air-permeable layer 13 even adverse currents.Can keep desorber negative pressure or normal pressure by regulating Analytic Tower pressure-regulating valve 18 apertures, with guarantee to adsorbent effectively decompression when emphasizing the negative pressure desorption effect, can reduce or without purge gas or/and the flushing desorption and regeneration.
Make adsorbent in tower, form bulk flow to reach the uniform purpose of adsorbent sorption and desorption by optimizing adsorption tower and Analytic Tower cone angle and air-permeable layer structural design.
Unstripped gas and/or purge gas are passed respectively the adsorbent layer of adsorption tower and Analytic Tower with reflux type, make unstripped gas in adsorption tower by continuous separating-purifying and the saturated adsorption agent in desorber, reduced pressure continuously and/or washed desorption and regeneration, thereby produce continuously and stably gas product.
Claims (4)
1. moving bed pressure swing adsorption gas separation device, it is characterized in that comprising adsorption tower and Analytic Tower, Analytic Tower is series on the adsorption tower, and be provided with Analytic Tower charging lock wind apparatus, adsorption tower charging lock wind apparatus and adsorption tower discharging lock wind apparatus, join by lifting device between adsorption tower discharging lock wind apparatus and Analytic Tower charging lock wind apparatus, described lifting device is mechanical elevator or Pneumatic conveying pump.
2. moving bed pressure swing adsorption gas separation device according to claim 1 is characterized in that described lifting device is mechanical conveyor or Pneumatic conveyer.
3. moving bed pressure swing adsorption gas separation device according to claim 1, adsorption tower centrum air-permeable layer and raw material gas inlet are established in the bottom that it is characterized in that described adsorption tower, adsorption tower centrum air-permeable layer and raw material gas inlet are joined, adsorption tower links to each other with the adsorption column pressure control valve by product gas outlet, and the high pressure feedstock gas outlet of air blast connects adsorption tower centrum air-permeable layer.
4. moving bed pressure swing adsorption gas separation device according to claim 1, the bottom that it is characterized in that described Analytic Tower is provided with Analytic Tower centrum air-permeable layer and purge gas import, Analytic Tower centrum air-permeable layer and purge gas import are joined, Analytic Tower links to each other with exhaust blower by Waste gas outlet, and adsorbent layer is passed by Analytic Tower centrum air-permeable layer in the purge gas gas outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220380308 CN202740982U (en) | 2012-08-02 | 2012-08-02 | Pressure swing adsorption gas separating device of moving bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220380308 CN202740982U (en) | 2012-08-02 | 2012-08-02 | Pressure swing adsorption gas separating device of moving bed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202740982U true CN202740982U (en) | 2013-02-20 |
Family
ID=47700433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220380308 Expired - Lifetime CN202740982U (en) | 2012-08-02 | 2012-08-02 | Pressure swing adsorption gas separating device of moving bed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202740982U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112742169A (en) * | 2019-10-30 | 2021-05-04 | 中国石油化工股份有限公司 | Adsorption process method |
-
2012
- 2012-08-02 CN CN 201220380308 patent/CN202740982U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112742169A (en) * | 2019-10-30 | 2021-05-04 | 中国石油化工股份有限公司 | Adsorption process method |
| CN112742169B (en) * | 2019-10-30 | 2023-10-10 | 中国石油化工股份有限公司 | Adsorption process |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101340969B (en) | Pressure swing adsorption process for oxygen production | |
| CN102755810A (en) | Rotor type pressure swing adsorption gas separation device | |
| CN103496672B (en) | Device and process for preparing O2-CO2 mixed gas based on chemical-looping technology | |
| CN1083731C (en) | Simulataneous step pressure swing adsorption process | |
| CN210340328U (en) | Integrated continuous oxygen and nitrogen making device | |
| CN104587804A (en) | Device system for purifying by utilizing gas separation membrane | |
| CN211799895U (en) | Process system for separating mixed gas containing hydrogen chloride and hydrogen | |
| TWI405605B (en) | Blasting method of blast furnace gas | |
| CN202740982U (en) | Pressure swing adsorption gas separating device of moving bed | |
| CN202778207U (en) | Rotor type pressure swing adsorption gas separating device | |
| CN202785635U (en) | Adsorptive hydrogen purifying device | |
| CN102380285B (en) | Multi-tower vacuum pressure swing adsorption based method and apparatus for concentrating coal mine ventilation air methane | |
| CN204447689U (en) | Gas separation membrane is used to carry out the apparatus system of purifying | |
| CN102755811A (en) | Moving bed pressure varying adsorption gas separation device | |
| CN202237712U (en) | Device for concentrating coal mine ventilation air methane through multi-tower vacuum pressure swing adsorption method | |
| CN103868346B (en) | Oxygen-enriched nitrogen supply system for cupola furnace | |
| CN105080288A (en) | Adsorption column for low-dew-point pressure swing adsorption nitrogen making machine | |
| WO2019180241A1 (en) | Process for separating a heavy gas component from a gaseous mixture | |
| CN201988309U (en) | Methanol purge gas treatment system | |
| CN211111060U (en) | High-efficient nitrogen generator | |
| KR101861646B1 (en) | Separation membrane system for recovering the carbon dioxide in the combustion gas | |
| CN110394027A (en) | The step space division technique that extensive pressure-variable adsorption is coupled with cryogenic separation | |
| CN201176398Y (en) | High-efficiency intelligent special nitrogen making machine for food package | |
| CN204973475U (en) | Low dew point adsorption tower for pressure swing adsorption nitrogen generator | |
| CN220677313U (en) | Energy-saving nitrogen making machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 211800, room 1, No. 1618, Pukou Avenue, Jiangpu street, Pukou District, Jiangsu, Nanjing Patentee after: NANJING SHENGHUO ENVIRONMENTAL TECHNOLOGY Co.,Ltd. Address before: 211800, No. five, No. 5, Zhujiang Industrial Zone, Pukou District, Jiangsu, Nanjing Patentee before: Nanjing Shenghuo Cement New Technology Engineering Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130220 |