发明名称 |
Purification of carbon dioxide using cryogenic distillation |
摘要 |
<p>Impurities that are less volatile than carbon dioxide, e.g. hydrogen sulphide, are removed from crude carbon dioxide by processes involving sub-ambient distillation of said crude carbon dioxide in a distillation column system operating at superatmospheric pressure(s) to produce carbon dioxide-enriched overhead vapour and bottoms liquid enriched with said impurities. Where such processes involve at least one heat pump cycle, significant savings in power consumption are realised when the process uses more than one recycle pressure in the heat pump cycle(s).
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申请公布号 |
EP2656898(A3) |
申请公布日期 |
2014.07.09 |
申请号 |
EP20130165191 |
申请日期 |
2013.04.24 |
申请人 |
AIR PRODUCTS AND CHEMICALS, INC. |
发明人 |
HIGGINBOTHAM, PAUL;PALAMARA, JOHN EUGENE |
分类号 |
B01D53/00;C01B17/16;C01B31/20;F25J3/02;F25J3/08 |
主分类号 |
B01D53/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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