IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0695855
(2000-10-26)
|
우선권정보 |
FR-0013517 (1999-10-28) |
발명자
/ 주소 |
- Monereau, Christian
- Belot, Jean-Marc
|
출원인 / 주소 |
- L'Air Liquide Societe Anonyme A Directoire et Conseil de Surveillance pour l'Etude et l'Exploitation, des Procedes Georges Claude
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
29 인용 특허 :
6 |
초록
▼
The gas treatment installation operating on a treatment cycle, in which part of the cycle is performed at a pressure below atmospheric pressure, particularly a PSA, TSA or VSA installation, includes one or more gas treatment vessels containing adsorbent. Each vessel has at least one orifice, at leas
The gas treatment installation operating on a treatment cycle, in which part of the cycle is performed at a pressure below atmospheric pressure, particularly a PSA, TSA or VSA installation, includes one or more gas treatment vessels containing adsorbent. Each vessel has at least one orifice, at least one gas pipe communicating with the orifice, at least one valve arranged on the gas pipe and controlling the flow of the gas flowing through the pipe. The valve comprises a shaft for operating the valve and sealing elements. A device for maintaining a protective gaseous atmosphere is arranged around the sealing elements and the operating shaft to create and to maintain a protective gaseous atmosphere around these items and thus prevent the ingress, into the treatment vessel, of contaminants harmful to the adsorbent, particularly the ingress of moisture liable to deactivate the molecular sieve, that is to say the adsorbent.
대표청구항
▼
The gas treatment installation operating on a treatment cycle, in which part of the cycle is performed at a pressure below atmospheric pressure, particularly a PSA, TSA or VSA installation, includes one or more gas treatment vessels containing adsorbent. Each vessel has at least one orifice, at leas
The gas treatment installation operating on a treatment cycle, in which part of the cycle is performed at a pressure below atmospheric pressure, particularly a PSA, TSA or VSA installation, includes one or more gas treatment vessels containing adsorbent. Each vessel has at least one orifice, at least one gas pipe communicating with the orifice, at least one valve arranged on the gas pipe and controlling the flow of the gas flowing through the pipe. The valve comprises a shaft for operating the valve and sealing elements. A device for maintaining a protective gaseous atmosphere is arranged around the sealing elements and the operating shaft to create and to maintain a protective gaseous atmosphere around these items and thus prevent the ingress, into the treatment vessel, of contaminants harmful to the adsorbent, particularly the ingress of moisture liable to deactivate the molecular sieve, that is to say the adsorbent. , comprising the steps of: a) forming a melt blend by mixing 50_99 wt % of a thermoplastic resin, 1_50 wt% of a thermotropic liquid crystalline polymer and 0.1_10 wt % of a compatibilizer based on the weight of the thermotropic liquid crystalline polymer; and b) biaxially drawing the melt blend obtained from step a) using a film blowing apparatus connected to an extrusion die to fabricate a film. 15. The method of claim 14, wherein a phase of the liquid crystalline polymer has a stripe shape in the film due to the biaxial drawing, in which a drawing ratio in a flow direction of the stripe is higher than a drawing ratio in a circumferential direction. 16. The method of claim 14, wherein a dual mandrel of which the inside and outside are rotated in the opposite direction is used as the extrusion die, so that a morphologically modified liquid crystalline phase is formed in a net shape. 17. The method of claim 14, wherein a multi-layered film is fabricated by using a multiple extrusion die. 18. The method of claim 14, wherein the amount of the compatibilizer is 0.1_5 wt % based on the weight of the thermotropic liquid crystalline polymer. 19. The method of claim 14, wherein the concentration of the thermotropic liquid crystalline polymer is 5_25 wt %. 20. The method of claim 14, wherein the concentration of the thermoplastic resin is 75_95 wt %. 21. A liquid crystalline polymer blended gas separation membrane fabricated by the method of claim 14. 22. A method for separating gases comprising the step of separating one or more gases with the liquid crystalline polymer blended gas separation membrane of claim 21.
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