Patent ID: 6403523
Filing Date: 2002-06-11
Classification: B01J,C01F,C01P,C07C,Y02P

Abstract:
A catalyst for the oxidative dehydrogenation of a lower hydrocarbon, said catalyst comprising: a nonstoichiometric rare earth oxycarbonate of the formula MXCYOZ having a disordered and/or defect structure, wherein M is at least one rare earth element selected from the group consisting of La, Pr, Nd, Sm, Eu, Gd, Th, Dy, Ho, Er, and Tm; X is 2; Z is 3+AY; A is less than about 1.8; and Y is the number of carbon atoms in the oxycarbonate, and wherein said catalyst, when used for the oxidative dehydrogenation of said lower hydrocarbon at a pressure above about 100 psig, has a selectivity of at least about 40% to at least one higher hydrocarbon and/or lower olefin.