发明名称 |
Process for the preparation of urea |
摘要 |
The invention relates to a process for the preparation of urea from ammonia and carbon dioxide, the preparation being effected in whole or in part in a vertical combi-reactor. The gas stream leaving the stripper is fed to the condenser section of a vertical combi-reactor in which this gas stream is wholly or partially condensed in the carbamate stream which is transferred from the scrubber section to the condenser section via a downcomer. Ammonia and carbon dioxide are partially converted into urea in this condenser section of the combi-reactor. The urea conversion is completed in the reaction section of the combi-reactor.
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申请公布号 |
US2002035292(A1) |
申请公布日期 |
2002.03.21 |
申请号 |
US20010902467 |
申请日期 |
2001.07.11 |
申请人 |
MENNEN JOHANNES H.;JONCKERS KEES |
发明人 |
MENNEN JOHANNES H.;JONCKERS KEES |
分类号 |
C07C273/04;(IPC1-7):C07C273/04 |
主分类号 |
C07C273/04 |
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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