| abstract |
Reactor membranes for used in oxidation reactions of hydrocarbons involving oxygen comprising a selective oxidation catalyst on a mixed conducting, oxide ion selective ceramic membrane of the composition (Sr 1-x Ca x ) 1-y A y Mn 1-z B z O 3-δ , where n A is Ba, Pb, Na, K, Y, an element of the lanthanide group or a combination thereof, n B is Mg, Al, Ga, In, Sn, an element of the 3d or 4d period or a combination thereof, n x is from 0.2 to 0.8, n y is from 0 to 0.4, n z is from 0 to 0.6, and n δ is a number, dependent on x, y and z, that renders the composition charge neutral. |