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Krypton and/or xenon recovery method and device 发明授权

2023-12-02 1820 127K 0

专利信息

申请日期 2025-07-12 申请号 JP2003413573
公开(公告)号 JP5085835B2 公开(公告)日 2012-11-28
公开国别 JP 申请人省市代码 全国
申请人 AIR PRODUCTS AND CHEMICALS INCORPORATED
简介 Krypton and/or xenon is separated crudely from an oxygen product comprising oxygen and at least one rare gas selected from the group consisting of krypton and xenon in a distillation process using a rare gas recovery system comprising a distillation system 16. The oxygen product 108 is produced in a cryogenic air separation process operating a pumped LOX cycle. The pressure of the oxygen product 108 is greater than the operating pressure of the part of the cryogenic ASU producing LOX and at least about 50 mol % of the oxygen product 108 is fed to the rare gas recovery system 16 in the gaseous phase. One advantage of a preferred embodiment of the present invention is that it can easily be retrofitted to existing pumped LOX cycle ASUs.


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