发明名称 |
Process and adsorbent for hydrogen purification |
摘要 |
This invention discloses an optimum set of adsorbents for use in H2-PSA processes. Each adsorbent bed is divided into four regions; Region 1 contains adsorbent for removing water; Region 2 contains a mixture of strong and weak adsorbents to remove bulk impurities like CO2; Region 3 contains a high bulk density (>38 lbm/ft3) adsorbent to remove remaining CO2; and most of CH4 and CO present in H2 containing feed mixtures; and Region 4 contains adsorbent having high Henry's law constants for the final cleanup of N2 and residual impurities to produce hydrogen at the desired high purity.
|
申请公布号 |
US7537742(B2) |
申请公布日期 |
2009.05.26 |
申请号 |
US20030540506 |
申请日期 |
2003.12.22 |
申请人 |
PRAXAIR TECHNOLOGY, INC. |
发明人 |
BAKSH MOHAMED SAFDAR ALLIE;ACKLEY MARK WILLIAM;NOTARO FRANK |
分类号 |
B01D53/04;B01D53/047;C01B3/56 |
主分类号 |
B01D53/04 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|