发明名称 |
PREPARATION OF SYNTHETIC AMMONIA GAS |
摘要 |
Ammonia synthesis gas is made from a raw gas comprising hydrogen, carbon dioxide and medium boiling point gases including nitrogen in excess of the proportion required in ammonia synthesis gas, by a pressure swing adsorption process characterized by feeding to the adsorbent a raw gas in which hydrogen and total medium boiling point gases are present in a volume ratio in the range 1.25 to 2.5, and the medium boiling point gases comprise nitrogen to the extent of at least 90% v/v on the total such gases. Preferred ways of making the raw gas, of ensuring purity of the product gas and of recovering useful heat are described. |
申请公布号 |
JPH0640706(A) |
申请公布日期 |
1994.02.15 |
申请号 |
JP19930035811 |
申请日期 |
1993.02.24 |
申请人 |
IMPERIAL CHEM IND PLC <ICI> |
发明人 |
ARUUIN PINTO;JIYON BURAIAN HANSEN JIYONSON |
分类号 |
B01D53/04;B01D53/047;C01B3/02;C01B3/38;C01B3/48;C01B3/56 |
主分类号 |
B01D53/04 |
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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