Device and method for removing water and carbon dioxide from a gas mixture using pressure swing adsorption
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B01D-053/047
출원번호
US-0077795
(2005-03-10)
등록번호
US-7452406
(2008-11-18)
발명자
/ 주소
Little,William A.
Spektor,Sam
출원인 / 주소
MMR Technologies Inc.
대리인 / 주소
Lumen Patent Firm, Inc.
인용정보
피인용 횟수 :
16인용 특허 :
11
초록▼
A pressure swing adsorption (PSA) dryer for separating water and carbon dioxide from a gas stream includes two compound adsorbent columns [32, 42]. Each column comprises a primary adsorption material for adsorbing water and a secondary adsorbent that adsorbs carbon dioxide. The secondary adsorbent c
A pressure swing adsorption (PSA) dryer for separating water and carbon dioxide from a gas stream includes two compound adsorbent columns [32, 42]. Each column comprises a primary adsorption material for adsorbing water and a secondary adsorbent that adsorbs carbon dioxide. The secondary adsorbent comprises a solid amine. The secondary adsorbent may be, for example, a highly porous polystyrene matrix with amine groups bonded to the porous resin structure. Preferably, a mixture of the primary and secondary adsorbent materials forms an intermediate layer [38, 48] sandwiched between a top layer [34, 44] and bottom layer [36, 46] of pure water adsorbent material in each of the columns [32, 42].
대표청구항▼
The invention claimed is: 1. A pressure swing adsorption (PSA) dryer comprising two adsorption columns, wherein each of the adsorption columns comprises a mixture of primary and secondary adsorbents, wherein the primary adsorbent adsorbs water and the secondary adsorbent adsorbs carbon dioxide, whe
The invention claimed is: 1. A pressure swing adsorption (PSA) dryer comprising two adsorption columns, wherein each of the adsorption columns comprises a mixture of primary and secondary adsorbents, wherein the primary adsorbent adsorbs water and the secondary adsorbent adsorbs carbon dioxide, wherein the secondary adsorbent comprises a solid amine; wherein the mixture is packed in the columns in three layers: a top layer, a bottom layer, and a middle layer sandwiched between the top layer and bottom layer, wherein both the top layer and the bottom layer contain just primary adsorbent material, and wherein the middle layer contains a mixture of the primary and secondary adsorbent materials. 2. The PSA dryer of claim 1 wherein the secondary adsorbent comprises a macroporous, divinylbenzene-crosslinked polymer with benzylamine groups. 3. The PSA dryer of claim 1 wherein the secondary adsorbent comprises a porous polystyrene matrix with amine groups bonded to a porous resin structure. 4. The PSA dryer of claim 1 wherein a volume ratio of the primary adsorbent to the secondary adsorbent in the mixture is approximately 80% to 20%. 5. The PSA dryer of claim 1 wherein the mixture is inhomogeneously packed in the columns in stratified layers. 6. The PSA dryer of claim 1 wherein a volume ratio of the primary adsorbent to the secondary adsorbent in the middle layer is in the range 80:20 to 60:40. 7. The PSA dryer of claim 1 wherein a volume ratio of the middle layer to the top layer is approximately 60% to 20%, and a volume ratio of the middle layer to the bottom layer is approximately 60% to 20%. 8. A method for reducing the concentration of water and carbon dioxide in a gaseous stream using pressure swing adsorption, the method comprising: a) passing the gaseous stream through a first adsorbent column to produce a dry flow having reduced water and carbon dioxide content; b) dividing the dry flow into a product flow and a purge flow; c) increasing the volume and decreasing the pressure of the purge flow to produce an expanded purge flow; d) passing the expanded purge flow through a second adsorbent column to produce a moist exhaust flow having increased water and carbon dioxide content; and e) reversing the direction of flow through the first and second adsorbent columns; wherein each of the first and second adsorbent columns comprises a mixture of primary and secondary adsorbents, wherein the primary adsorbent adsorbs water and the secondary adsorbent adsorbs carbon dioxide, wherein the secondary adsorbent comprises a solid amine; wherein the mixture is packed in the columns in three layers: a top layer, a bottom layer, and a middle layer sandwiched between the top layer and bottom layer, wherein both the top layer and the bottom layer contain just primary adsorbent material, and wherein the middle layer contains a mixture of the primary and secondary adsorbent materials. 9. The method of claim 8 wherein the secondary adsorbent comprises a macroporous, divinylbenzene-crosslinked polymer with benzylamine groups. 10. The method of claim 8 wherein the secondary adsorbent comprises a porous polystyrene matrix with amine groups bonded to a porous resin structure. 11. The method of claim 8 wherein a volume ratio of the primary adsorbent to the secondary adsorbent in the mixture is approximately 80% to 20%. 12. The method of claim 8 wherein the mixture is inhomogeneously packed in the columns in stratified layers. 13. The method of claim 8 wherein a volume ratio of the primary adsorbent to the secondary adsorbent in the middle layer is in the range 80:20 to 60:40. 14. The method of claim 8 wherein a volume ratio of the middle layer to the top layer is approximately 60% to 20%, and a volume ratio of the middle layer to the bottom layer is approximately 60% to 20%.
Schoofs Gregory R. (1064 Del Rio Way Moraga CA 94556) Schoofs Richard J. (125 Tharp Dr. Moraga CA 94556), Apparatus and method for air drying with reduced oxygen enrichment.
Hashimoto Kiyoshi (Himeji JPX) Kono Takumi (Himeji JPX) Kurimoto Makoto (Niihama JPX) Uno Masaru (Akashi JPX), Process for adsorbing and separating carbon dioxide from gas mixture.
Choi, Sunho; Drese, Jeffrey H.; Chance, Ronald R.; Eisenberger, Peter M.; Jones, Christopher W., Application of amine-tethered solid sorbents to CO2 fixation from air.
Tranier, Jean-Pierre; Darde, Arthur; Rauch, Jean-François; Antonio, Dominique; Michel, Christophe, Method and device for drying a gas flow rich in carbon dioxide.
Pennline, Henry W.; Hoffman, James S.; Gray, McMahan L.; Fauth, Daniel J.; Resnik, Kevin P., Regenerable sorbent technique for capturing CO2 using immobilized amine sorbents.
Eisenberger, Peter; Buelow, Mark Thomas; Durilla, Michael; Kauffman, John; Tran, Pascaline, System and method for carbon dioxide capture and sequestration utilizing an improved substrate structure.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.