| US 7,468,092 B2 | ||
| Operation of mixed conducting metal oxide membrane systems under transient conditions | ||
| Michael Francis Carolan, Allentown, Pa. (US) | ||
| Assigned to Air Products and Chemicals, Inc., Allentown, Pa. (US) | ||
| Filed on Apr. 27, 2005, as Appl. No. 11/115,778. | ||
| Application 11/115778 is a continuation in part of application No. 10/943574, filed on Sep. 17, 2004, granted, now 7,311,755. | ||
| Prior Publication US 2006/0060081 A1, Mar. 23, 2006 | ||
| This patent is subject to a terminal disclaimer. | ||
| Int. Cl. B01D 53/22 (2006.01) | ||
| U.S. Cl. 95—54 [95/15; 95/19; 95/45; 96/4; 96/7; 96/11] | 38 Claims |
| 1. A method of operating an oxygen-permeable mixed conducting membrane comprising a dense layer of a mixed conducting metal oxide material, having an oxidant feed side, an oxidant feed surface, a permeate side, and a permeate surface, which method comprises controlling differential strain between the permeate surface and the oxidant feed surface at a value below a selected maximum value by varying oxygen partial pressure on either or both of the oxidant feed side and the permeate side of the oxygen-permeable mixed conducting membrane. |