发明名称 |
PURIFICATION OF RAW GAS FOR AMMONIA SYNTHESIS |
摘要 |
Purification of Raw Gas For Ammonia Synthesis 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 characterised by feeding to the adsorbent a raw gas in which hydrogen and total medium boiling point gases are present in a volume ratio is 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 of 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 |
CA1257206(A) |
申请公布日期 |
1989.07.11 |
申请号 |
CA19850474982 |
申请日期 |
1985.02.22 |
申请人 |
IMPERIAL CHEMICAL INDUSTRIES PLC |
发明人 |
PINTO, ALWYN;JOHNSON, JOHN B.H. |
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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