发明名称 |
Ceramic membrane structure and oxygen separation method |
摘要 |
A ceramic membrane structure and method for separating oxygen from an oxygen containing feed at temperatures above about 600° C. The membrane is provided with a dense layer and one or more active porous layers. The dense layer contains at least a mixed conducting material and the active porous layer is formed of a mixture having an ion conducting phase capable of predominantly conducting oxygen ions and a mixed conducting phase capable of conducting both oxygen ions and electrons. The ion conducting phase is present within the mixture in an amount greater than a percolation threshold and the mixed conducting material and phase have a greater electronic conductivity than ionic conductivity.
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申请公布号 |
US6514314(B2) |
申请公布日期 |
2003.02.04 |
申请号 |
US20000727472 |
申请日期 |
2000.12.04 |
申请人 |
PRAXAIR TECHNOLOGY, INC. |
发明人 |
SIRMAN JOHN DERRICK;CHEN JACK C. |
分类号 |
B01D69/14;B01D71/02;B29C70/02;B29C70/44;B29C70/52;D04H13/00;(IPC1-7):B01D53/22 |
主分类号 |
B01D69/14 |
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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