发明授权
- 专利标题： Method of thawing a cryogenic unit
- 专利标题（中）： 解冻低温装置的方法
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申请号： US10235591申请日： 2002-09-05
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公开(公告)号： US07043938B2公开(公告)日： 2006-05-16
- 发明人: Raghu S. Narayan , Steven T. Coleman , James H. Walker
- 申请人： Raghu S. Narayan , Steven T. Coleman , James H. Walker
- 申请人地址： US TX Houston
- 专利权人： Equistar Chemicals, LP
- 当前专利权人： Equistar Chemicals, LP
- 当前专利权人地址： US TX Houston
- 代理商 Roderick W. MacDonald
- 主分类号： F25D21/00
- IPC分类号： F25D21/00 ; F25J5/00 ; F28G9/00
摘要：
A method for thawing and removing frozen material from a cryogenic separation unit such as that found in an olefin production plant comprising employing a flushing agent to thaw and remove the frozen material, purging the flushing agent with a gas, and removing residual flushing agent with a solvent that is miscible with the flushing agent and has a freezing temperature substantially lower than the flushing agent.
公开/授权文献
- US20040055330A1 Method of thawing a cryogenic unit 公开/授权日：2004-03-25
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