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    Process for the separation of gaseous mixtures by adsorption with pressure variation
    2.
    发明授权
    Process for the separation of gaseous mixtures by adsorption with pressure variation 失效
    通过压力变化吸附分离气体混合物的方法

    公开(公告)号：US6051052A

    公开(公告)日：2000-04-18

    申请号：US970431

    申请日：1997-11-14

    申请人： Christian Monereau ,  Philippe Andreani ,  Pierre Petit

    发明人： Christian Monereau ,  Philippe Andreani ,  Pierre Petit

    IPC分类号： B01D53/053 ,  B01D53/047

    CPC分类号： B01D53/053 ,  B01D2256/12 ,  B01D2259/40016 ,  B01D2259/40075 ,  B01D2259/40079 ,  B01D2259/40081 ,  B01D53/0446

    摘要： A separation process, involving an adsorber containing at least one adsorbent with an inlet and outflow, involves the following stages of the cycle:--stage I, repressurization from the low pressure of the cycle;--stages II and III during one of which the high pressure of the cycle is reached; and stage IV, depressurization/purging, during which the low pressure of the cycle is reached. Each stage (I to IV) involves a fixed gas flow (F) at one end of the adsorber and a free gas flow (.lambda.) at the other end of the adsorber, the fixed flows (F) addressing the inlet (E) and outlet (F) ends of the adsorber from one stage (I to IV) to the next. The process is particularly applicable to the production of oxygen from air.

    摘要翻译： 涉及包含至少一种具有入口和流出物的吸附剂的吸附器的分离过程涉及循环的以下阶段：阶段I，从循环的低压重新加压; - 在其中之一中的第二和第三阶段 达到循环压力; 和第四阶段，减压/清洗，在此期间达到循环的低压。 每个阶段（I至IV）涉及吸附器一端的固定气流（F）和吸附器另一端的自由气流（λ），位于入口（E）的固定流（F）和 吸附器的出口（F）端从一个阶段（I至IV）到下一个阶段。 该方法特别适用于从空气中产生氧气。

    Method for cooling a gaseous mixture to a low temperature
    7.
    再颁专利
    Method for cooling a gaseous mixture to a low temperature 失效

    公开(公告)号：USRE30140E

    公开(公告)日：1979-11-06

    申请号：US501246

    申请日：1974-08-28

    申请人： Maurice Grenier ,  Pierre Petit

    发明人： Maurice Grenier ,  Pierre Petit

    IPC分类号： C07C7/09 ,  C08G77/00 ,  C10G5/06 ,  F25J1/00 ,  F25J3/02

    CPC分类号： F25J3/0257 ,  C07C7/09 ,  C08G77/00 ,  C10G5/06 ,  F25J1/0022 ,  F25J1/004 ,  F25J1/0045 ,  F25J1/0055 ,  F25J1/0202 ,  F25J1/0212 ,  F25J1/0231 ,  F25J1/0237 ,  F25J1/0249 ,  F25J1/025 ,  F25J3/0209 ,  F25J3/0233 ,  F25J3/0242 ,  F25J3/0247 ,  F25J2200/02 ,  F25J2200/50 ,  F25J2200/70 ,  F25J2200/74 ,  F25J2200/76 ,  F25J2200/80 ,  F25J2205/04 ,  F25J2215/04 ,  F25J2215/64 ,  F25J2215/66 ,  F25J2270/12 ,  F25J2290/34

    摘要： .Iadd. .Iadd.8. A method for cooling a second gaseous mixture to low temperature and producing at least one constituent of said mixture in liquid phase, comprising:a. cooling and subjecting first gaseous mixture containing at least one component of said secong gaseous mixture, to a fractionate condensation under a first pressure,b. expanding at least two condensed fractions obtained during the fractionate condensation of said first gaseous mixture, reuniting the expanded condensed fractions with said first gaseous mixture under a second pressure lower than said first pressure, vaporizing and reheating the reunited fractions with said first gaseous mixture under said second pressure, by heat exchange with said second gaseous mixture undergoing cooling, and with said first gaseous mixture undergoing fractionate condensation, and recompressing said first gaseous mixture to said first pressure,c. reuniting under said first pressure said second gaseous mixture undergoing cooling with said first gaseous mixture undergoing fractionate condensation, when said gaseous mixture is in conditions of temperature and pressure such that a major portion of said constituent to be produced in liquid phase is condensed within said second gaseous mixture, and after the first condensed fraction of said first gaseous mixture has been withdrawn for expansion and vaporization, continuing the fractionate condensation of the mixture so obtained under said first pressure until there is obtained a last condensed fraction containing a major part of said constituent to be produced in liquid phase,d. expanding to said second pressure the last condensed fraction, and separating the last expanded fraction into a liquid portion expanded to a pressure lower than said second pressure and a residual gaseous portion for recompression with said first gaseous mixture, and withdrawing said last expanded liquid portion as a product stream, ande. prior to reuniting said first gaseous mixture and said second gaseous mixture, condensing at least partially said second gaseous mixture under a third pressure which is higher than said first pressure, and expanding said second gaseous mixture at least partially condensed to said first pressure. .Iaddend.