CN110420540A - A kind of double tower integration pressure swing adsorption technique - Google Patents
A kind of double tower integration pressure swing adsorption technique Download PDFInfo
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- CN110420540A CN110420540A CN201910567269.0A CN201910567269A CN110420540A CN 110420540 A CN110420540 A CN 110420540A CN 201910567269 A CN201910567269 A CN 201910567269A CN 110420540 A CN110420540 A CN 110420540A
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- adsorption tower
- adsorption
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- 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
- B01D53/04—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 stationary adsorbents
- B01D53/047—Pressure swing adsorption
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- 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
- C01B13/0277—Temperature swing adsorption
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/40—Carbon monoxide
Abstract
The present invention relates to a kind of double tower integration pressure swing adsorption technique, adsorption tower is set as pipe heat exchanger pattern, with independence respective in pipe and circulation area respectively accounts for 50% between pipe, it is adsorption tower A in pipe, it is adsorption tower B between pipe, when adsorption tower A is in adsorbed state, adsorption tower B is in desorption state；When adsorption tower A is in adsorbed state, adsorbent heat release simultaneously increases temperature, adsorption tower B is in desorption state, adsorbent absorbs heat and reduces temperature, adsorption tower A and B exchanges heat, and realizes the purpose that adsorption-desorption temperature rise temperature drop is offset, on the contrary, when adsorption tower B is in adsorbed state, adsorption tower A is in desorption state；When adsorption tower B is in adsorbed state, adsorbent heat release simultaneously increases temperature, and adsorption tower A is in desorption state, and adsorbent absorbs heat and reduces temperature, and adsorption tower B and A exchange heat, and realize the purpose that adsorption-desorption temperature rise temperature drop is offset.
Description
Technical field
The present invention relates to chemical industry, energy-saving and environmental protection field, it is that one kind effectively improves performance of the adsorbent, reduces energy consumption
Method.
Background technique
For pressure-swing absorption process, cooling and heating system, adsorption process are not set up, heat of adsorption increases adsorbent temperature,
It is unfavorable for adsorbent and adsorbs more adsorbates, and desorption process, adsorbate heat absorption, adsorbent temperature reduce, and are unfavorable for adsorbing
Adsorbate desorbs in agent, and therefore, the difference of unit adsorbent adsorption-desorption amount is far below isothermal adsorption and desorption process, adsorbent
Service efficiency reduces.
The pressure-variable adsorption separating technology highly exothermic for adsorption process, usual way is that cooling is set up in adsorption tower
System and heating system.However cooling setting up with heating system, the frequent replacement of hot fluid and cold fluid is unfavorable for adsorbent
Close to isothermal adsorption process, the pressure swing adsorption cycles time is lengthened, and is still unfavorable for the raising of adsorbent service efficiency.
Pipe heat exchanger is the good equipment that exchanges heat between hot fluid and cold fluid.
The fever of gas adsorption processes is absorbed heat simultaneously in two or more different adsorption towers from desorption process
It carries out, total heat of adsorption and heat of desorption are close.
Summary of the invention
Double tower integration pressure swing adsorption technique, it is characterised in that adsorption tower is set as pipe heat exchanger pattern, between pipe with
Respectively independence and circulation area respectively account for 50% in pipe, are adsorption tower A in pipe, are adsorption tower B between pipe, when adsorption tower A is in absorption
When state, adsorption tower B is in desorption state；When adsorption tower A is in adsorbed state, adsorbent heat release simultaneously increases temperature, absorption
Tower B is in desorption state, and adsorbent absorbs heat and reduces temperature, and adsorption tower A and B exchange heat, and realize that adsorption-desorption temperature rise temperature drop is offset
Purpose, conversely, adsorption tower A is in desorption state when adsorption tower B is in adsorbed state；When adsorption tower B is in adsorbed state
When, adsorbent heat release simultaneously increases temperature, and adsorption tower A is in desorption state, and adsorbent absorbs heat and reduces temperature, and adsorption tower B and A is changed
Heat realizes the purpose that adsorption-desorption temperature rise temperature drop is offset.
Specific embodiment
Embodiment 1: adsorption tower is set as pipe heat exchanger pattern by 4 meters of diameter of oxygen adsorption tower processed, between pipe with it is each in pipe
From independence and circulation area respectively accounts for 50%, is adsorption tower A in pipe, is adsorption tower B between pipe, when adsorption tower A is in adsorbed state
When, adsorption tower B is in vacuum desorption state；When adsorption tower A is in adsorbed state, adsorbent heat release simultaneously increases 10 DEG C of temperature,
Adsorption tower B is in vacuum desorption state, and adsorbent absorbs heat and reduces by 10 DEG C of temperature, and absorption vacuum is realized in adsorption tower A and B heat exchange
The purpose that temperature rise temperature drop is offset is desorbed, conversely, adsorption tower A is in vacuum desorption state when adsorption tower B is in adsorbed state；
When adsorption tower B is in adsorbed state, adsorbent heat release simultaneously increases 10 DEG C of temperature, and adsorption tower A is in vacuum desorption state, absorption
Agent absorbs heat and reduces by 10 DEG C of temperature, and the purpose that absorption vacuum desorption temperature rise temperature drop is offset is realized in adsorption tower B and A heat exchange.Adsorbent
It increases heat in absorption phase temperature and is removed and be conducive to improve adsorbance, adsorbent is heated in the vacuum desorption stage to be conducive to
Improve Vacuum solutions pipette.Adsorption tower is set up in this way, and the service efficiency of adsorbent improves 15% or more, and corresponds to and divide
15% or more is reduced from energy consumption (vacuum pump energy consumption).
Embodiment 2: the carbon monoxide that 3 meters of diameter purifies adsorption tower, and adsorption tower is set as pipe heat exchanger pattern, Guan Jian
With independence respective in pipe and circulation area respectively accounts for 50%, is adsorption tower A in pipe, is adsorption tower B between pipe, inhales when adsorption tower A is in
When attached state, adsorption tower B is in vacuum desorption state；When adsorption tower A is in adsorbed state, adsorbent heat release simultaneously increases temperature
10 DEG C, adsorption tower B is in vacuum desorption state, and adsorbent absorbs heat and reduces by 10 DEG C of temperature, and absorption is realized in adsorption tower A and B heat exchange
The purpose that vacuum desorption temperature rise temperature drop is offset, conversely, adsorption tower A is in vacuum desorption shape when adsorption tower B is in adsorbed state
State；When adsorption tower B is in adsorbed state, adsorbent heat release simultaneously increases 10 DEG C of temperature, and adsorption tower A is in vacuum desorption state,
Adsorbent absorbs heat and reduces by 10 DEG C of temperature, and the purpose that absorption vacuum desorption temperature rise temperature drop is offset is realized in adsorption tower B and A heat exchange.It inhales
Attached dose increases heat and is removed and be conducive to improve adsorbance in absorption phase temperature, and adsorbent has been heated in the vacuum desorption stage
Conducive to raising Vacuum solutions pipette.Adsorption tower is set up in this way, and the service efficiency of adsorbent improves 15% or more, and right
Separating energy consumption (vacuum pump energy consumption) is answered to reduce by 15% or more.
Embodiment 3: 3 meters of diameter of refinery exhaust ethylene purifies adsorption tower, and adsorption tower is set as pipe heat exchanger pattern,
With independence respective in pipe and circulation area respectively accounts for 50% between pipe, it is adsorption tower A in pipe, is adsorption tower B between pipe, at adsorption tower A
When adsorbed state, adsorption tower B is in vacuum desorption state；When adsorption tower A is in adsorbed state, adsorbent heat release is simultaneously increased
20 DEG C of temperature, adsorption tower B is in vacuum desorption state, and adsorbent absorbs heat and reduces by 20 DEG C of temperature, and adsorption tower A and B heat exchange is realized
The purpose that vacuum desorption temperature rise temperature drop is offset is adsorbed, conversely, adsorption tower A is in Vacuum solutions when adsorption tower B is in adsorbed state
Suction state；When adsorption tower B is in adsorbed state, adsorbent heat release simultaneously increases 20 DEG C of temperature, and adsorption tower A is in vacuum desorption shape
State, adsorbent absorb heat and reduce by 20 DEG C of temperature, and the mesh that absorption vacuum desorption temperature rise temperature drop is offset is realized in adsorption tower B and A heat exchange
's.Adsorbent increases heat and be removed in absorption phase temperature to be conducive to improve adsorbance, and adsorbent is in vacuum desorption stage quilt
Heating is conducive to improve Vacuum solutions pipette.Set up adsorption tower in this way, the service efficiency of adsorbent improve 25% with
On, and corresponding to separating energy consumption (vacuum pump energy consumption) reduces by 22% or more.
Claims (1)
1. a kind of double tower integration pressure swing adsorption technique, it is characterised in that: adsorption tower is set as pipe heat exchanger pattern, Guan Jian
With independence respective in pipe and circulation area respectively accounts for 50%, is adsorption tower A in pipe, is adsorption tower B between pipe, inhales when adsorption tower A is in
When attached state, adsorption tower B is in desorption state；When adsorption tower A is in adsorbed state, adsorbent heat release simultaneously increases temperature, inhales
Attached tower B is in desorption state, and adsorbent absorbs heat and reduces temperature, and adsorption tower A and B exchange heat, and realize that adsorption-desorption temperature rise temperature drop supports
The purpose to disappear, conversely, adsorption tower A is in desorption state when adsorption tower B is in adsorbed state；When adsorption tower B is in adsorption-like
When state, adsorbent heat release simultaneously increases temperature, and adsorption tower A is in desorption state, and adsorbent absorbs heat and reduces temperature, adsorption tower B and A
The purpose that adsorption-desorption temperature rise temperature drop is offset is realized in heat exchange.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910567269.0A CN110420540A (en) | 2019-06-27 | 2019-06-27 | A kind of double tower integration pressure swing adsorption technique |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910567269.0A CN110420540A (en) | 2019-06-27 | 2019-06-27 | A kind of double tower integration pressure swing adsorption technique |
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| Publication Number | Publication Date |
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| CN110420540A true CN110420540A (en) | 2019-11-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910567269.0A Pending CN110420540A (en) | 2019-06-27 | 2019-06-27 | A kind of double tower integration pressure swing adsorption technique |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5724615A (en) * | 1980-07-18 | 1982-02-09 | Hitachi Ltd | Psa type adsorption utilizing heats of adsorption and desorption |
| JPH01180217A (en) * | 1988-01-06 | 1989-07-18 | Hitachi Ltd | Pressure swing adsorption device |
| US6974496B2 (en) * | 2001-04-30 | 2005-12-13 | Battelle Memorial Institute | Apparatus for thermal swing adsorption and thermally-enhanced pressure swing adsorption |
| CN103463926A (en) * | 2013-07-04 | 2013-12-25 | 中国科学院理化技术研究所 | Molecular sieve adsorption tower provided with heat transferring medium channels |
| JP5534865B2 (en) * | 2010-02-27 | 2014-07-02 | Ｊｆｅスチール株式会社 | Gas separation method and gas separation apparatus by pressure swing adsorption method |
| CN204735090U (en) * | 2015-06-05 | 2015-11-04 | 南京都乐制冷设备有限公司 | Alternating temperature pressure swing adsorption recovery unit |
-
2019
- 2019-06-27 CN CN201910567269.0A patent/CN110420540A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5724615A (en) * | 1980-07-18 | 1982-02-09 | Hitachi Ltd | Psa type adsorption utilizing heats of adsorption and desorption |
| JPH01180217A (en) * | 1988-01-06 | 1989-07-18 | Hitachi Ltd | Pressure swing adsorption device |
| US6974496B2 (en) * | 2001-04-30 | 2005-12-13 | Battelle Memorial Institute | Apparatus for thermal swing adsorption and thermally-enhanced pressure swing adsorption |
| JP5534865B2 (en) * | 2010-02-27 | 2014-07-02 | Ｊｆｅスチール株式会社 | Gas separation method and gas separation apparatus by pressure swing adsorption method |
| CN103463926A (en) * | 2013-07-04 | 2013-12-25 | 中国科学院理化技术研究所 | Molecular sieve adsorption tower provided with heat transferring medium channels |
| CN204735090U (en) * | 2015-06-05 | 2015-11-04 | 南京都乐制冷设备有限公司 | Alternating temperature pressure swing adsorption recovery unit |
Non-Patent Citations (3)
| Title |
|---|
| 宋瑞: "《基础制药设备》", 30 June 2015, 河北科学技术出版社 * |
| 李化治编: "《制氧技术》", 31 March 1997, 北京冶金工业出版社 * |
| 王沛主编: "《制药原理与设备第2版》", 31 January 2019, 上海科学技术出版社 * |
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Application publication date: 20191108 |
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