公开(公告)号：EP3504157A1

公开(公告)日：2019-07-03

申请号：EP17732695.6

申请日：2017-06-14

申请人： Praxair Technology Inc.

发明人： BARRETT, Philip, A. ,  STEPHENSON, Neil, A. ,  STUCKERT, Nicholas, R. ,  FREIERT, Michael ,  DU, Hai ,  MASIN, Rachael, A. ,  SWINDLEHURST, Garrett, R.

IPC分类号： C01B23/00 ,  B01J20/18 ,  B01D53/04 ,  B01J20/34 ,  F25J3/04

公开(公告)号：EP3329196B1

公开(公告)日：2020-11-18

申请号：EP16748223.1

申请日：2016-07-26

申请人： Praxair Technology, Inc.

发明人： DU, Hai ,  STEPHENSON, Neil, A. ,  PROSSER, Neil, M.

IPC分类号： F25J3/04

公开(公告)号：EP3329193A1

公开(公告)日：2018-06-06

申请号：EP16748220.7

申请日：2016-07-26

申请人： Praxair Technology Inc.

发明人： DU, Hai ,  PROSSER, Neil, M. ,  LUO, Yang ,  STEPHENSON, Neil, A.

IPC分类号： F25J3/04

CPC分类号： F25J3/04733 ,  B01D53/047 ,  B01D2253/102 ,  B01D2253/108 ,  B01D2253/116 ,  B01D2257/11 ,  F25J3/0409 ,  F25J3/04096 ,  F25J3/04103 ,  F25J3/04296 ,  F25J3/04303 ,  F25J3/04412 ,  F25J3/04678 ,  F25J3/04739 ,  F25J3/04884 ,  F25J3/04939 ,  F25J2205/02 ,  F25J2205/60 ,  F25J2245/58 ,  F25J2250/02 ,  F25J2270/02 ,  F25J2290/34

摘要： A method and apparatus for argon recovery in which an impure argon stream is separated from air within a cryogenic air separation unit having a divided wall argon rejection/rectification column. The resulting argon stream is subsequently recovered and purified within an integrated pressure swing adsorption system to produce product grade argon.

公开(公告)号：EP3329195B1

公开(公告)日：2020-08-26

申请号：EP16748222.3

申请日：2016-07-26

申请人： Praxair Technology, Inc.

发明人： DU, Hai ,  PROSSER, Neil, M. ,  LUO, Yang ,  STEPHENSON, Neil, A.

IPC分类号： F25J3/04 ,  C01B23/00

公开(公告)号：EP3329195A1

公开(公告)日：2018-06-06

申请号：EP16748222.3

申请日：2016-07-26

申请人： Praxair Technology Inc.

发明人： DU, Hai ,  PROSSER, Neil, M. ,  LUO, Yang ,  STEPHENSON, Neil, A.

IPC分类号： F25J3/04 ,  C01B23/00

摘要： A method and apparatus for argon recovery in which an impure argon stream is separated from air within a cryogenic air separation unit having a divided wall argon rejection/rectification column. The resulting argon stream is subsequently recovered and purified within an integrated pressure swing adsorption system to produce product grade argon.

公开(公告)号：EP2961686B1

公开(公告)日：2019-11-13

申请号：EP14709486.6

申请日：2014-02-21

申请人： Praxair Technology, Inc.

发明人： KECHAGIA, Persefoni, E. ,  STEPHENSON, Neil, A. ,  BARRETT, Philip, A. ,  DU, Hai ,  PONTONIO, Steven, J.

IPC分类号： C01B23/00 ,  B01D53/04 ,  F25J3/08 ,  F25J3/04

公开(公告)号：EP2961686A1

公开(公告)日：2016-01-06

申请号：EP14709486.6

申请日：2014-02-21

申请人： Praxair Technology Inc.

发明人： KECHAGIA, Persefoni, E. ,  STEPHENSON, Neil, A. ,  BARRETT, Philip, A. ,  DU, Hai ,  PONTONIO, Steven, J.

IPC分类号： C01B23/00 ,  B01D53/04 ,  F25J3/08 ,  F25J3/04

摘要： The invention relates to a process for removing oxygen from liquid argon using a TSA (temperature swing adsorption) cyclical process that includes cooling an adsorbent bed to sustain argon in a liquid phase; supplying the adsorbent bed with a liquid argon feed that is contaminated with oxygen and purifying the liquid argon thereby producing an argon product with less oxygen contaminant than is in the initial liquid argon feed; draining the purified residual liquid argon product and sending purified argon out of the adsorbent bed. Regeneration of specially prepared adsorbent allows the adsorbent bed to warm up to temperatures that preclude the use of requiring either vacuum or evacuation of adsorbent from the bed.