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GB2564674A - A desiccant compressed air dryer - Google Patents

A desiccant compressed air dryer Download PDF

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Publication number
GB2564674A
GB2564674A GB1711598.1A GB201711598A GB2564674A GB 2564674 A GB2564674 A GB 2564674A GB 201711598 A GB201711598 A GB 201711598A GB 2564674 A GB2564674 A GB 2564674A
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GB
United Kingdom
Prior art keywords
desiccant
compressed air
rotating drum
segments
air dryer
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.)
Withdrawn
Application number
GB1711598.1A
Other versions
GB201711598D0 (en
Inventor
Kenneth Murray Thomas
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB1711598.1A priority Critical patent/GB2564674A/en
Publication of GB201711598D0 publication Critical patent/GB201711598D0/en
Publication of GB2564674A publication Critical patent/GB2564674A/en
Withdrawn legal-status Critical Current

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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
    • B01D53/26—Drying gases or vapours
    • B01D53/261—Drying gases or vapours by adsorption
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/40—Alkaline earth metal or magnesium compounds
    • B01D2251/404—Alkaline earth metal or magnesium compounds of calcium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/60—Inorganic bases or salts
    • B01D2251/602—Oxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/60—Inorganic bases or salts
    • B01D2251/608—Sulfates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10—Inorganic adsorbents
    • B01D2253/102—Carbon
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10—Inorganic adsorbents
    • B01D2253/104—Alumina
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10—Inorganic adsorbents
    • B01D2253/106—Silica or silicates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10—Inorganic adsorbents
    • B01D2253/112—Metals or metal compounds not provided for in B01D2253/104 or B01D2253/106
    • B01D2253/1124—Metal oxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10—Inorganic adsorbents
    • B01D2253/116—Molecular sieves other than zeolites
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/80—Water
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/06—Polluted air
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/40—Further details for adsorption processes and devices
    • B01D2259/40083—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption
    • B01D2259/40088—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating
    • B01D2259/4009—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating using hot gas
    • 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
    • B01D53/26—Drying gases or vapours
    • B01D53/28—Selection of materials for use as drying agents

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Drying Of Gases (AREA)

Abstract

A desiccant compressed air dryer 1 comprises a rotating drum 3, a primary air inlet 5 and a primary air outlet 7. The rotating drum includes a plurality of distinct self-contained segments (9a 9h, Fig 2) each comprising a casing having a secondary air inlet, a secondary air outlet, and a desiccant enclosed therein. The desiccant may comprise any of activated aluminium, a molecular sieve and silica gel. The plurality of distinct segments are releasably secured in and removable from the rotating drum. Preferably an opening and closure 27 on the top of the rotating drum 3 permits access to the plurality of distinct segments. The desiccant compressed air dryer functions to dry compressed air preferably in a first sector 4a and regenerate the desiccant preferably in a second sector 4b. The desiccant compressed air dryer may be used in facilities such as medical, pharmaceutical and food production, and provides replacement of the desiccant by removal of the distinct segments of the rotating drum thereby negating a need to replace the entire drum, and therefore reducing the amount of time needed to replace the desiccant.

Description

“A desiccant compressed air dryer”
Introduction
This invention relates to a desiccant compressed air dryer.
Air compressors are used to provide a highly pressurised air supply to a wide range of facilities, such as medical, pharmaceutical manufacturing, electronic device manufacturing and food production facilities as well as other facilities. In facilities such as medical, pharmaceutical and food production facilities, air compressors are required to provide an air supply that is substantially free of contaminants.
In addition to the compressed air supply being clean, it also must be dry. Desiccant compressed air dryers are a particular type of air compressor used to remove moisture from compressed air to reduce the possibility of system failures as a result of corrosion in the system pipework, production downtime, costly repairs and product spoilage. Desiccant compressed air dryers employ a desiccant to remove moisture from the compressed air.
When the desiccant has been in use for some time, it becomes saturated as a result of absorbing the moisture from the compressed air and cannot absorb any more moisture. In order to reuse the desiccant, it must be regenerated. The desiccant can be regenerated either by hot air, or by hot compressed air. The hot air method usually consists of a fan comprising an electric heater blowing hot air drawn from the compressor room through the desiccant to dry it. This method can be costly as a result of using large quantities of electricity to operate the fan.
The hot compressed air method uses the heat of the air compressor to regenerate the desiccant. This type of air dryer comprises a rotating drum that is divided into two sectors. The compressed air drying sector generally accounts for 75% of the drum, while the regenerating sector accounts for the remaining 25% of the drum. This type of desiccant air compressor dryer generally consists of paper desiccant media bonded in layers to fill the drum. Even though the desiccant is regenerated, over time the paper may break apart and can be discharged with the dried compressed air. This is undesirable as it results in the compressed air no longer being clean, leading to contamination of the facility to which the clean compressed air is being delivered.
Additionally, when the desiccant is saturated, becomes damaged, or requires replacement with a new grade of desiccant, the entire drum must be replaced. This is undesirable as it results in a long maintenance interval, which in turn results in lengthy manufacture downtime. A lengthy manufacture downtime is undesirable as it affects productivity. Furthermore, having to remove the entire drum can be a complicated and costly undertaking that requires significant manpower.
It is an object of the present invention to provide a desiccant compressed air dryer that overcomes at least some of these problems and that provides a useful alternative choice to the consumer.
Statements of Invention
According to the invention there is provided a desiccant compressed air dryer comprising:
a rotating drum;
a primary air inlet;
a primary air outlet; and in which the rotating drum comprises a plurality of distinct self-contained segments, each segment comprising a casing having a secondary air inlet, a secondary air outlet, and a desiccant enclosed therein, and in which the plurality of distinct segments are releasably secured in and removable from the rotating drum.
By having such a desiccant compressed air dryer, it will be possible to replace the desiccant of the dryer by simply removing the distinct segments of the rotating drum. Such a compressed air dryer negates the need to replace the entire drum, and therefore significantly reduces the amount of time needed to replace the desiccant, which in turn
- 3reduces the downtime of the system. Accordingly, if the desiccant is saturated, damaged or an alternative grade of media is required, the desiccant can be more easily and efficiently replaced than was heretofore the case. By having such a desiccant compressed air dryer, the cost of manpower associated with the replacement of the desiccant will be significantly reduced.
In one embodiment of the invention there is provided a desiccant compressed air dryer in which the dryer is configured so that air from a compressed air source is delivered into the rotating drum through the primary air inlet and thereafter, as the drum rotates, sequentially through the secondary air inlet of each of the distinct segments, and in turn through the desiccant therein, out of the secondary air outlet, and out of the primary air outlet. By having such a configuration, compressed air to be dried may enter each of the distinct segments and pass through the desiccant within each segment, resulting in dried compressed air.
In one embodiment of the invention there is provided a desiccant compressed air dryer in which the secondary air inlet is located adjacent the top, and the secondary air outlet is located adjacent the bottom of the plurality of distinct segments.
In one embodiment of the invention there is provided a desiccant compressed air dryer in which the distinct segments are pie-shaped.
In one embodiment of the invention there is provided a desiccant compressed air dryer in which there are provided eight distinct segments.
In one embodiment of the invention there is provided a desiccant compressed air dryer in which the casing of the distinct segment is provided with a charging aperture and a closure. By having such a charging aperture and a closure, the desiccant within each of the distinct segments may be replaced more easily and efficiently than was heretofore the case.
In one embodiment of the invention there is provided a desiccant compressed air dryer in which the rotating drum is provided with a tertiary air inlet for reception of heated air to regenerate the desiccant in the distinct segments and a tertiary air outlet for evacuation of the heated air from the rotating drum. By having such a tertiary air inlet, as the drum rotates, the desiccant within each segment is regenerated by hot air being delivered from the air compressor.
In one embodiment of the invention there is provided a desiccant compressed air dryer in which the rotating drum is provided with an opening on the top of the drum to permit access to the segments and a closure to releasably seal the opening. This is seen as advantageous for stand-alone dryers as it allows for vertical retraction of the segments.
In one embodiment of the invention there is provided a desiccant compressed air dryer in which the rotating drum is provided with an opening on the side of the drum to permit access to the segments and a closure to releasably seal the opening. This is seen as advantageous for integrated dryers as it allows for horizontal retraction of the segments.
In one embodiment of the invention there is provided a desiccant compressed air dryer in which the rotating drum is cylindrically-shaped.
In one embodiment of the invention there is provided a desiccant compressed air dryer in which the desiccant contained within the plurality of segments is in the form of a bead. By having the desiccant in the form of a bead, the risk of the desiccant contaminating the compressed air is reduced.
In one embodiment of the invention there is provided a desiccant compressed air dryer in which the desiccant is loose within the plurality of distinct segments. By having the desiccant loose within the distinct segments as opposed to being bonded within in the drum as was heretofore the case, it is envisaged that the desiccant may be more easily replaced. Furthermore, the segments can be refilled and re-used with other desiccants.
In one embodiment of the invention there is provided a desiccant compressed air dryer in which the desiccant media comprises activated aluminium.
In one embodiment of the invention there is provided a rotary drum compressed air dryer in which the desiccant media comprises a molecular sieve.
- 5In one embodiment of the invention there is provided a rotary drum compressed air dryer in which the desiccant media comprises silica gel.
Detailed Description of the Invention
The invention will now be more clearly understood from the following description of some embodiments thereof given by way of example only with reference to the accompanying drawings, in which:Figure 1 is a diagrammatic representation of the desiccant compressed air dryer according to the invention;
Figure 2 is a diagrammatic representation of a plurality of distinct segments within a rotating drum according to the invention;
Figure 3 is a diagrammatic representation of a self-contained distinct segment according to the invention; and
Figure 4 is a diagrammatic representation of an alternative embodiment of the rotating drum according to the invention.
Referring to Figure 1, there is shown a diagrammatic representation of the desiccant compressed air dryer according to the invention, indicated generally by the reference numeral 1. The desiccant compressed air dryer comprises a rotating drum 3, a primary air inlet 5 located adjacent the bottom of the rotating drum 3 and a primary air outlet 7 located adjacent the top of the rotating drum 3. Arrow A indicates the rotational direction of the rotating drum 3. The rotating drum 3 further comprises a plurality of distinct selfcontained, pie-shaped segments 9(a) to 9(h) as illustrated in Figure 2.
Referring now to Figure 3, each segment further comprises a casing 11, a secondary air inlet 13, a secondary air outlet 15 indicated by a dashed line, and a desiccant 17 indicated by a plurality of dashed lines within the segment. It will be understood that by having a plurality of distinct self-contained segments, each of the segments will be capable of functioning in isolation to each other. Each of the distinct segments further comprises a charging aperture and closure 19 for removal of the desiccant 17, which is loose therein. The desiccant 17 may comprise any of activated aluminium, a molecular sieve and silica gel. The plurality of distinct segments 9(a) to 9(h) are releasably secured in and removable from the rotating drum 3.
Referring once again to Figure 1, the desiccant air compressor dryer has two functions; drying compressed air and regenerating the desiccant, and accordingly is divided into two sectors, 4(a) and 4(b). The first function is to dry the cooled moisture-filled compressed air entering the dryer by way of the desiccant 17. The first sector 4(a) accounts for approximately 75% of the overall dryer. The second function is to regenerate the desiccant 17 contained within each of the distinct segments 9(a) to 9(h). This sector 4(b) accounts for the remaining 25% of the dryer approximately. Accordingly, in use, moisture-filled air from a compressed air source is delivered into the rotating drum 3 through the primary air inlet 5 located adjacent the top of the rotating drum 3 in the drying sector, as indicated by arrow B. As the drum slowly rotates in the direction of arrow A, compressed air travels sequentially through the secondary air inlet 13 of each of the distinct segments 9(a) to 9(h), through the desiccant 17 within the distinct segment, out of the secondary air outlet 15, and out of the primary air outlet 7 of the rotating drum 3, as indicated by arrow C.
It will be understood that as the compressed air travels through the desiccant, the desiccant 17 will remove moisture from the compressed air, resulting in an egress of dry compressed air through the secondary air outlet 15, and out of the primary air outlet 7 of the rotating drum 3. This is seen as the preferred configuration, however it will be understood that the primary inlet 5 could be located adjacent the bottom of the rotating drum, and the primary outlet 7 could be located adjacent the top of the rotating drum 3. It will be understood that the dried, compressed air exiting the primary outlet 7 is now ready to be used in a process.
It can be seen in Figure 3 that the secondary air inlet 13 is located adjacent the top of the distinct segment, and the secondary air outlet 15 is located adjacent the bottom of the distinct segment. This is seen as a preferred configuration, however it will be understood that the secondary air inlet 13 could be located adjacent the bottom of the
- 7distinct segment, and the secondary air outlet 15 could be located adjacent the top of the distinct segment.
Referring again to Figure 1, the rotating drum 3 further comprises a tertiary air inlet 21 located adjacent the top of the tank in the regeneration sector as indicated by arrow D for reception of heated air directly from the oil-free air compressor (not shown) to regenerate the desiccant 17 within the distinct segments. The rotating drum 3 further comprises a tertiary air outlet 23 located adjacent the bottom of the rotating drum 3 for evacuation of the heated air from the rotating drum 3. As the hot air from the air compressor enters the dryer and regenerates the desiccant 17 by removing moisture by desorption, the air exiting the tertiary outlet 23 is hot and saturated. Accordingly, the hot, saturated air enters a cooler 25 as indicated by arrow E. The saturated air is cooled within the cooler 25 and exits the cooler, where it mixes with the cold, moisture-filled compressed air entering the primary inlet 5 to be dried.
In the embodiment shown in Figure 1, the rotating drum further comprises an opening and closure 27 on the top of the rotating drum 3 to permit access to the plurality of distinct segments. This embodiment is preferable in an air compressor system in which the rotating drum is a stand-alone drum in isolation from the air compressor. In use, in order to access or remove the plurality of distinct segments, it is envisaged that the desiccant compressor dryer system 1 will be shut down, and the opening 27 will be opened. The distinct segment will be sequentially aligned with the opening 27 on the top of the drum and retracted vertically. If it is required that all of the distinct segments are to be removed, the rotating drum 3 will be rotated, each distinct segment will be systematically aligned with the opening 27 and removed, until all of the distinct segments have been removed. This allows for the drum to remain intact.
Referring now to Figure 4, there is shown a diagrammatic representation of an alternative embodiment of the desiccant compressed air dryer, in which like parts have been given the same reference numeral as before, indicated generally by reference numeral 100. There is shown a rotary drum 103 in isolation, containing a plurality of selfcontained distinct segments (not shown). The rotary drum 103 is provided with an opening and closure 105 located on the side of the drum to permit access to the
- 8segments within. This embodiment is preferable in an air compressor system in which the rotating drum is integrated with the air compressor.
In use, in order to access or remove the plurality of distinct segments, it is envisaged that the desiccant compressor dryer system 1 will be shut down, and the opening 105 will be opened. The distinct segment will be sequentially aligned with the opening 105 on the side of the drum and retracted horizontally. If it is required that all of the distinct segments are to be removed, the rotating drum 103 will be rotated, each distinct segment will be systematically aligned with the opening 105 and removed, until all of the distinct segments have been removed. Again, this allows for the drum to remain intact.
Throughout the specification and drawings, the rotating drum 3, 103 has been described as cylindrical, however it may also be octagonal or another polygonal shape. In the embodiments described there are eight self-contained distinct segments, however it is envisaged that there may be provided any number of distinct segments, including, but not limited to six, ten or twelve distinct segments. Although activated aluminium, a molecular sieve and silica gel have been heretofore described as the desiccant media used, it will be understood that other forms of desiccant media including, but not limited to montmorillonite clay, calcium sulfate, calcium oxide and activated carbon may also be used.
In this specification the terms “comprise, comprises, comprised and comprising” and the terms “include, includes, included and including” are all deemed interchangeable and should be afforded the widest possible interpretation.
The invention is not limited to the embodiment hereinbefore described but may be varied in both construction and detail within the scope of the appended claims.

Claims (15)

  1. Claims:
    (1) A desiccant compressed air dryer comprising:
    a rotating drum;
    a primary air inlet;
    a primary air outlet; and in which the rotating drum comprises a plurality of distinct self-contained segments, each segment comprising a casing having a secondary air inlet, a secondary air outlet, and a desiccant enclosed therein, and in which the plurality of distinct segments are releasably secured in and removable from the rotating drum.
  2. (2) A desiccant compressed air dryer as claimed in claim 1 in which the dryer is configured so that air from a compressed air source is delivered into the rotating drum through the primary air inlet and thereafter, as the drum rotates, sequentially through the secondary air inlet of each of the distinct segments, and in turn through the desiccant therein, out of the secondary air outlet, and out of the primary air outlet.
  3. (3) A desiccant compressed air dryer as claimed in claims 1 or 2 in which the secondary air inlet is located adjacent the top, and the secondary air outlet is located adjacent the bottom of the plurality of distinct segments.
  4. (4) A desiccant compressed air dryer as claimed in any preceding claim in which the distinct segments are pie-shaped.
  5. (5) A desiccant compressed air dryer as claimed in claims 1 to 3 in which there are provided eight distinct segments.
  6. (6) A desiccant compressed air dryer as claimed in any preceding claim in which the casing of the distinct segment is provided with a charging aperture and a closure.
  7. (7) A desiccant compressed air dryer as claimed in any preceding claim in which the rotating drum is provided with a tertiary air inlet for reception of heated air to regenerate the desiccant in the distinct segments and a tertiary air outlet for evacuation of the heated air from the rotating drum.
  8. (8) A desiccant compressed air dryer as claimed in any preceding claim in which the rotating drum is provided with an opening on the top of the drum to permit access to the segments and a closure to releasably seal the opening.
  9. (9) A desiccant compressed air dryer as claimed in claims 1 to 7 in which the rotating drum is provided with an opening on the side of the drum to permit access to the segments and a closure to releasably seal the opening.
  10. (10) A desiccant compressed air dryer as claimed in any preceding claim in which the rotating drum is cylindrically-shaped.
  11. (11) A desiccant compressed air dryer as claimed in any preceding claim in which the desiccant contained within the plurality of segments is in the form of a bead.
  12. (12) A desiccant compressed air dryer as claimed in any preceding claim in which the desiccant is loose within the plurality of distinct segments.
  13. (13) A desiccant compressed air dryer as claimed in any preceding claim in which the desiccant media comprises activated aluminium.
  14. (14) A rotary drum compressed air dryer as claimed in claims 1 to 12 in which the desiccant media comprises a molecular sieve.
  15. (15) A rotary drum compressed air dryer as claimed in claims 1 to 12 in which the desiccant media comprises silica gel.
GB1711598.1A 2017-07-19 2017-07-19 A desiccant compressed air dryer Withdrawn GB2564674A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1711598.1A GB2564674A (en) 2017-07-19 2017-07-19 A desiccant compressed air dryer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1711598.1A GB2564674A (en) 2017-07-19 2017-07-19 A desiccant compressed air dryer

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Publication Number Publication Date
GB201711598D0 GB201711598D0 (en) 2017-08-30
GB2564674A true GB2564674A (en) 2019-01-23

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5169414A (en) * 1990-07-03 1992-12-08 Flakt, Inc. Rotary adsorption assembly
US6521026B1 (en) * 1999-10-20 2003-02-18 Alstom K.K. Regenerative type carbon dioxide separator and carbon dioxide separating system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5169414A (en) * 1990-07-03 1992-12-08 Flakt, Inc. Rotary adsorption assembly
US6521026B1 (en) * 1999-10-20 2003-02-18 Alstom K.K. Regenerative type carbon dioxide separator and carbon dioxide separating system

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