A sorption drying system for dehumidification of a moist gas stream, includes a mass of absorbing material, a moist gas stream arranged to flow through at least a part of the absorbent mass, and a heated stream of regeneration gas arranged to flow through at least a part of the absorbent mass. The s
A sorption drying system for dehumidification of a moist gas stream, includes a mass of absorbing material, a moist gas stream arranged to flow through at least a part of the absorbent mass, and a heated stream of regeneration gas arranged to flow through at least a part of the absorbent mass. The sorption drying system further includes structure for deflecting a part of the dehumidified gas stream after flowing through the absorbent mass, a cooler for cooling the deflected dehumidified gas stream, and structure for returning the cooled deflected dehumidified gas stream to the moist gas stream at the inlet into the absorbent mass. At least a part of the cooled deflected dehumidified gas stream is arranged to flow through the absorbent mass in a channel separated from the moist gas stream.
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1. A sorption drying system for dehumidification of a humid gas stream, said system comprising: a mass of absorbing material having an inlet side and an outlet side;the inlet side being divided into three different inlet areas (A,B,C) wherein a heated regeneration gas stream is either directed to or
1. A sorption drying system for dehumidification of a humid gas stream, said system comprising: a mass of absorbing material having an inlet side and an outlet side;the inlet side being divided into three different inlet areas (A,B,C) wherein a heated regeneration gas stream is either directed to or collected from a first inlet regeneration area (A),a deflected dehumidified gas stream is directed to a second inlet area (B) and a humid gas stream is directed to a third inlet area (C),the outlet side being divided into four different outlet areas (a,b,c,d);a collection container arranged on the outlet side of the absorbing material,in which the regeneration gas stream is collected from or the regeneration gas is directed to a first outlet area (a),collecting a first part of the deflected dehumidified gas stream from a second outlet area (b),collecting a second part of the deflected dehumidified gas stream from a third outlet area (c) and directing the deflected dehumidified gas stream out from the drying system as a user dehumidified gas stream,collecting a third part of the deflected dehumidified gas stream together with the humid gas stream, from a fourth outlet area (d), wherein the first part of the deflected dehumidified gas stream from the second outlet area (b) together with the third part of the deflected dehumidified gas stream and the humid gas stream from the fourth outlet area (d) is deflected as a recirculation to the second inlet area (B) as the deflected dehumidified gas stream. 2. The sorption drying system according to claim 1, wherein the first inlet regeneration area (A) has a different area than the first outlet area (a), which is defined by a first end portion connection. 3. The sorption drying system according to claim 2, wherein the system further comprises a cooler for cooling the deflected dehumidified gas stream from the outlet side of the absorbing material before entering the second inlet area (B). 4. The sorption drying system according to claim 1, wherein the mass of absorbing material is in a cylindrical form and each of the inlet areas (A, B, C) and each of the outlet areas (a, b, c, d) substantially have the shape of a circular sector. 5. The sorption drying system according to claim 4, wherein the mass of absorbing material is contained in and has the form of a drying rotor adapted to rotate about a central axis. 6. The sorption drying system according to claim 5, wherein the first end portion connection is arranged on the inlet side of the drying rotor to direct a humid gas stream into the drying rotor, wherein the first end portion connection is shaped so that the humid gas stream is directed inward toward only a sector part of the first end portion area of the drying rotor, such that the humid gas stream is arranged to flow through a port of the drying rotor corresponding to the sector defined by the first end portion connection and to be dehumidified in the drying rotor. 7. The sorption drying system according to claim 6, wherein the collection container is arranged on the outlet side of the drying rotor that is substantially as large as the sector defined by the first end portion connection and deflect a dehumidified gas stream from the outlet side of the drying rotor, wherein the collection container is placed so that the sector covered by the collection container substantially corresponds to the sector defined by the first end portion connection on the inlet side of the drying rotor toward which the humid gas stream is directed. 8. The sorption drying system according to claim 5, wherein the third inlet sector (C) is situated substantially immediately before the first inlet sector (A) in the direction of rotation of the drying rotor. 9. The sorption drying system according to claim 5, wherein a second end portion connection arranged on the inlet side of the drying rotor separate from the first end portion connection for the humid gas stream for returning the cooled deflected dehumidified gas stream to the inlet side of the drying rotor, wherein the sector defined by the first end portion connection is situated substantially immediately before the regeneration sector in the direction of rotation of the drying rotor, and wherein the cooled deflected dehumidified gas stream is arranged to flow through the drying rotor in a second sector defined by the second end portion connection and separated from the sector defined by the first end portion connection and containing the humid gas stream. 10. The sorption drying system according to claim 4, wherein the third outlet sector (c) is substantially as large as the third inlet sector (C). 11. The sorption drying system according to claim 3, further comprising a fan situated between the collection container and the cooler. 12. The sorption drying system according to claim 5, wherein the collection container comprises a second collection sector arranged immediately after the regeneration sector. 13. The sorption drying system according to claim 1, further comprising: a valve situated at an inlet connection or outlet connection for the stream of regeneration gas for regulating the pressure of the stream of regeneration gas, anda valve situated at the inlet side or outlet side of the mass of absorbing material for the humid gas stream for regulating the pressure of the humid gas stream. 14. A sorption drying system for dehumidification of a humid gas stream, said system comprising: a mass of absorbing material having an inlet side and an outlet side, wherein the inlet side is divided into three different inlet areas (A, B, C) wherein a heated regeneration gas stream is either directed to or collected from a first inlet regeneration area (A),a deflected dehumidified gas stream is directed to a second inlet area (B) and a humid gas stream is directed to a third inlet area (C),the outlet side being divided into four different outlet areas (a, b, c, d);a collection container arranged on the outlet side of the absorbing material,collecting the first regeneration gas stream from or directed the regeneration gas to a first outlet area (a),collecting a first part of the deflected dehumidified gas stream from a second outlet area (b),collecting a second part of the deflected dehumidified gas stream from a third outlet area (c) and directing the deflected dehumidified gas stream out from the drying system as a user dehumidified gas stream,collecting a third part of the deflected dehumidified gas stream together with the humid gas stream from a fourth outlet area (d), wherein the sorption drying system further comprises: a valve situated at an inlet connection or outlet connection for the stream of regeneration gas for regulating the pressure of the stream of regeneration gas, anda valve situated at the inlet side or outlet side of the mass of absorbing material for the humid gas stream for regulating the pressure of the humid gas stream. 15. The sorption drying system according to claim 14, further comprising a fan for varying the flow of the stream of regeneration gas through the mass of absorbing material. 16. The sorption drying system according to claim 14, further comprising a fan for varying the flow of the humid gas stream through the mass of absorbing material. 17. The sorption drying system according to claim 14, wherein the parts of the drying system that comprise the mass of absorbing material are built in an air-proof housing. 18. The sorption drying system according to claim 14, wherein at least one of the inlet areas (A, B, C) and at least one of the outlet areas (a, b, c, d) is separated from its neighboring area by seals. 19. The sorption drying system according to claim 1, wherein at least one of the inlet areas (A, B, C) and at least one of the outlet areas (a, b, c, d) is separated from its neighboring area by seals. 20. A method for dehumidification of a gas stream in a sorption drying system comprising a mass of absorbing material having an inlet side and an outlet side, wherein the method comprises the steps of: directing a humid gas stream into the mass of absorbing material through a first end portion connection arranged on the inlet side of the mass of absorbing material,wherein the first end portion connection is shaped so that the humid gas stream is directed inward toward a sector-shaped area of the mass of absorbing material, such that the humid gas stream flows through a part of the mass of absorbing material corresponding to the sector defined by the first end portion and is dehumidified;directing a heated stream of regeneration gas through a regeneration sector of the mass of absorbing material, wherein the regeneration sector is separated from the sector defined by the first end portion connection;deflecting the dehumidified gas stream from the outlet side of the mass of absorbing material by means of a collection container arranged on the outlet side of the mass of absorbing material to cover a sector of the mass of absorbing material that is substantially as large as the sector defined by the first end portion connection, wherein the collection container is placed so that the sector defined by the first end portion connection on the inlet side of the mass of absorbing material toward which the humid gas stream is directed; andreturning the dehumidified gas stream to the inlet side of the mass of absorbing material by means of a second end portion connection arranged on the inlet side of the mass of absorbing material separate from the first end portion connection for the humid gas stream. 21. The method according to claim 20, wherein the mass of absorbing material is in the form of a drying rotor of a substantially circular shape adapted to rotate about a central axis, wherein end portions of the drying rotor are formed in the shape of circular sectors into and from which sectors of the gas stream are directed. 22. The method according to claim 21, wherein the sector defined by the first end portion connection is situated immediately before the regeneration sector in the direction of rotation of the drying rotor. 23. The method according to claim 22, wherein the deflected dehumidified gas stream is directed through a cooler, the method further comprising the step of directing the cooled deflected dehumidified gas stream through the drying rotor in a second sector defined by the second end portion connection and separated from the sector defined by the first end portion connection and containing the humid gas stream. 24. The method according to claim 20, further comprising the step of regulating the pressure of the stream of regeneration gas or the humid gas stream in such a way that the pressure of the stream of regeneration gas is essentially equal to, however always lower than, the pressure of the humid gas stream.
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이 특허에 인용된 특허 (10)
Dunne,Stephen R.; Coughlin,Peter K.; Sethna,Rustam H., Adsorption process for continuous purification of high value gas feeds.
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