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203 条记录 (耗时 0.012 秒)

    ABSORPTION VAPOR PRESSURE ENHANCEMENT PROCESS AND ITS APPLICATIONS IN HIGH LEVEL REFRIGERATION AND SEPARATION PROCESSES
    111.
    发明公开
    ABSORPTION VAPOR PRESSURE ENHANCEMENT PROCESS AND ITS APPLICATIONS IN HIGH LEVEL REFRIGERATION AND SEPARATION PROCESSES 失效
    吸收蒸汽压力增强方法及其在高级制冷和分离过程中的应用

    公开(公告)号：EP0516758A4

    公开(公告)日：1993-11-24

    申请号：EP91906478

    申请日：1991-02-26

    申请人： CHENG, CHEN-YEN

    发明人： CHENG, CHEN-YEN

    IPC分类号： F25B15/00 ,  B01D8/00 ,  B01D9/00 ,  B01D9/04 ,  F25J5/00

    CPC分类号： B01D9/0013 ,  B01D8/00 ,  B01D9/04 ,  Y02A20/132

    摘要： This invention introduces an absorption vapor pressure enhancement operation. In the process, a mass of solvent vapor is absorbed into an absorbing solution under a first pressure and an equivalent amount of second vapor is produced under a second pressure that is substantially higher than the first pressure. The pressure enhancement is accomplished by the dilution of the absorbing solution. A vapor pressure enhancement operation (98, 99) applied to a low pressure vapor is functionally equivalent to compressing a low pressure vapor. By using a multiple stage pressure enhancement operation (98, 99), a very high level of temperature lifting of heat can be accomplished. The process can be adopted in processes in which low pressure vapors are generated. Examples are freeze drying processes and multiple phase transformation processes such as Vacuum Freezing Processes, Eutectic Freezing Processes and Distillative Freezing Processes.

    Method and apparatus for manufacturing ammonia synthesis gas from a stream of gas rich in hydrogen and a stream of nitrogen
    114.
    发明公开
    Method and apparatus for manufacturing ammonia synthesis gas from a stream of gas rich in hydrogen and a stream of nitrogen 失效
    一种用于从富含氢气的气体料流生产氨合成气和氮气流的方法和装置。

    公开(公告)号：EP0018062A1

    公开(公告)日：1980-10-29

    申请号：EP80300376.3

    申请日：1980-02-08

    申请人： AIR PRODUCTS AND CHEMICALS, INC.

    发明人： McNeil, Brian Alfred

    IPC分类号： C01B3/02 ,  F25J5/00

    CPC分类号： C01B3/025 ,  F25J3/0223 ,  F25J3/0276 ,  F25J2205/30 ,  F25J2210/42 ,  F25J2270/904 ,  F25J2280/02 ,  Y10S62/934 ,  Y10S165/909

    摘要： Difficulties associated with the operational stability of a conventional cryogenic plant for manufacturing ammonia synthesis gas from a stream rich in hydrogen and a stream of nitrogen are reduced by using three heat exchangers in place of the conventional single heat exchanger. In use, the first heat exchanger (102), which is preferably arranged with its cold end uppermost, is used to cool the stream of nitrogen.
    Part of the nitrogen leaving the first heat exchanger (102) is passed downwardly through a third heat exchanger (204) where it is further cooled before being introduced into a nitrogen wash column (104) where it acts as reflux. The third heat exchanger (204) is cooled by vapour leaving the top of the nitrogen wash column (104). After being cooled in the first heat exchanger (102) the stream rich in hydrogen is passed upwardly in a second heat exchanger (202) where it is further cooled before being introduced into the lower portion of the nitrogen was column (104).
    A modification is also described which facilitates recovery of most of the small amount of hydrogen in the liquid leaving the bottom of the nitrogen was column (104).

    摘要翻译： 富氢气的物流冷却并洗涤，在氮气洗涤塔（104）以除去杂质的氮气。 气态氢和氮离开氮洗涤塔（104）和氮的适量的顶部加入，以形成氨合成气。 气态氮气和氢气离开氮洗涤塔的顶部被加热（202，204）加入这种氮DASS的前死亡所得混合物在汽相中，从而避免了现有技术的另外的氮，其中相关的困难，其 立即进行氮清洗塔的下游，并且两相产生由于通过添加氮的产生的冷却效果。