Process for separating oxygen from an oxygen-containing gas...

Details Process for separating oxygen from an oxygen-containing gas... Process for separating oxygen from an oxygen-containing gas...

B - Operations, Transporting

01

D

B01D 53/22 (2006.01) B01D 71/02 (2006.01) C01B 13/02 (2006.01) C01B 13/08 (2006.01) H01M 8/12 (2006.01)

Patent

CA 2093332

2093332 9205862 PCTABS00011 Oxygen is separated from an oxygen-containing gas by introducing the gas into a first zone (1) of a gas separation apparatus, the apparatus comprising first (1) and second (2) zones separated by a mixed metal oxide membrane (8), the membrane (8) having a first surface (7) open to the first zone (1), a second surface (10) open to the second zone (2), and an empirical formula of Bi Ax My Mz' On, where A is at least one of Mg, Ca, Sr, Ba, Y, Th, U, and the lanthanide elements; M is at least one of Sc, Ti, Cr, Mn, Fe, Ni, Cu and Zn; and M' is at least one of Co, Rh, Pd, Pt or Ru. The oxygen separated from the oxygen-containing gas can be recovered from the second surface (10) of the membrane (8) either as molecular oxygen, or it can be reacted with an oxygen-consuming substance, such as a hydrocarbon gas, which can be introduced into the second zone (2) of the separation apparatus and brought in contact with the second surface (10) of the membrane (8).

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