Patent ID: 6281403
Filing Date: 2001-08-28
Classification: B01J,C07C

Abstract:
A process for dehydrogenating an alkane-containing gas comprising the steps of:(a) providing a catalytic membrane reactor cell having an oxidation zone and a reduction zone separated from each other by a catalytic membrane having an oxidation surface and a reduction surface and which catalytic membrane is a single-phase mixed metal oxide material of the formulaAB.sub.1-x B'.sub.x O.sub.3-ywhere A=Ca, Sr, or Ba; B=Ce, Tb, Pr, or Th; and B'=Ti, V, Cr, Mn, Fe, Co, Ni or Cu; y is a number sufficient to neutralize the charge; and 0.02.ltoreq.x.ltoreq.0.5;(b) heating the catalytic membrane cell to a temperature from 300.degree. C. to 1,200.degree. C.;(c) introducing the alkane-containing gas into said oxidation zone in contact with the oxidation surface of said membrane to thereby dehydrogenate the alkane-containing gas; and(d) introducing an oxygen-containing gas, inert gas or a partial vacuum into said reduction zone in contact with the reduction surface of said membrane to thereby reduce the oxygen-containing gas;wherein the alkane-containing gas is capable of being dehydrogenated on contact with the membrane in said oxidation zone.