发明名称 |
Method and apparatus for recovering condensables in vapor from a urea vacuum evaporator |
摘要 |
<p>An improved urea recovery process is presented. In the improved process, multiple vacuum rated surface condensers used to condense water vapor evolved during urea vacuum evaporation/concentration are replaced by a direct contact cooler/absorber to obtain substantial capital and utility cost savings. Improved heat exchange efficiency of the present process significantly reduces cooling water usage in comparison to the surface condensers.</p> |
申请公布号 |
EP0752416(A1) |
申请公布日期 |
1997.01.08 |
申请号 |
EP19960107425 |
申请日期 |
1996.05.09 |
申请人 |
THE M.W. KELLOGG COMPANY |
发明人 |
SINGH, VISHNU DEO;STRAIT, RICHARD BRUCE;CZUPPON, THOMAS ANTHONY |
分类号 |
C07C273/04;C07C273/16;C07C275/02;(IPC1-7):C07C273/16 |
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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