公开(公告)号：WO1992005862A1

公开(公告)日：1992-04-16

申请号：PCT/US1991007391

申请日：1991-10-03

Applicant: THE STANDARD OIL COMPANY

Inventor： THE STANDARD OIL COMPANY ,  MAZANEC, Terry, J. ,  VELENYI, Louis, J.

IPC: B01D59/12

CPC classification number: C01B13/0255 ,  B01D53/22 ,  B01D53/228 ,  B01D63/06 ,  B01D71/024 ,  C01B2210/0046 ,  H01M8/1231

Abstract: 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).