发明名称 |
CARBON DIOXIDE AND HYDROGEN PRODUCTION METHOD FROM SYNTHESIS GAS |
摘要 |
<p>A method of producing a carbon dioxide product stream (756) from a synthesis gas stream (18) formed within a hydrogen plant (1) having a synthesis gas reactor (10), a water-gas shift reactor (14), located downstream of the synthesis gas reactor to form the synthesis gas stream (18) and a hydrogen pressure swing adsorption unit (20) to produce a hydrogen product (22) recovered from the synthesis gas stream. In accordance with the invention, the carbon dioxide is separated from the synthesis gas stream in a vacuum pressure swing adsorption system (80) to produce a hydrogen-rich gas stream (76) and a crude carbon dioxide stream (82) and then purifying the crude carbon dioxide stream by a sub- ambient temperature distillation process thereby to produce the carbon dioxide product (756). A hydrogen synthesis gas feed stream (78) to the hydrogen pressure swing adsorption unit is formed at least in part from the hydrogen- rich stream.</p> |
申请公布号 |
CA2647909(C) |
申请公布日期 |
2015.03.24 |
申请号 |
CA20072647909 |
申请日期 |
2007.03.28 |
申请人 |
PRAXAIR TECHNOLOGY, INC. |
发明人 |
HOWARD, HENRY EDWARD;SHAH, MINISH MAHENDRA;BILLINGHAM, JOHN FREDRIC;KUMAR, RAVI;NEU, BERNARD THOMAS;BONAQUIST, DANTE P. |
分类号 |
B01D53/047;C01B3/56;C01B31/20;F25J3/02 |
主分类号 |
B01D53/047 |
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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