Patent ID: 9561476
Date: 2017-02-07
CPC Classifications: B01D,B01J,C01B,H01M,Y02E,Y02P

Claim:
1. A composite oxygen transport membrane, said composite oxygen transport membrane comprising: a porous support layer comprised of an fluorite structured ionic conducting material having a porosity of greater than 20 percent and a microstructure exhibiting bi-modal, multi-modal or substantially uniform pore size distribution throughout the porous support layer; an intermediate porous layer capable of conducting oxygen ions and electrons to separate oxygen from an oxygen containing feed, the intermediate porous layer applied adjacent to the porous support layer and comprising a mixture of a fluorite structured ionic conductive material and electrically conductive materials to conduct the oxygen ions and electrons, respectively; a dense layer capable of conducting oxygen ions and electrons to separate oxygen from an oxygen containing feed, the dense layer applied adjacent to the intermediate porous layer and also comprising a mixture of a fluorite structured ionic conductive material and electrically conductive materials to conduct the oxygen ions and electrons, respectively; and catalyst particles or a solution containing precursors of the catalyst particles located in pores of the porous support layer and intermediate porous layer, the catalyst particles containing a catalyst selected to promote oxidation of a combustible substance in the presence of the separated oxygen transported through the dense layer and the intermediate porous layer to the porous support layer, wherein said catalyst is gadolinium doped ceria.