公开(公告)号：US06403523B1

公开(公告)日：2002-06-11

申请号：US09664954

申请日：2000-09-18

Applicant: Rick David Cantrell ,  Anca Ghenciu ,  Kenneth Dwight Campbell ,  David Michael Anthony Minahan ,  Madan Mohan Bhasin ,  Alistair Duncan Westwood ,  Kenneth Andrew Nielsen

Inventor： Rick David Cantrell ,  Anca Ghenciu ,  Kenneth Dwight Campbell ,  David Michael Anthony Minahan ,  Madan Mohan Bhasin ,  Alistair Duncan Westwood ,  Kenneth Andrew Nielsen

IPC: B01J2118

CPC classification number: C07C2/84 ,  B01J23/10 ,  B01J27/232 ,  C01F17/005 ,  C01P2002/01 ,  C01P2006/12 ,  C07C5/48 ,  C07C2527/232 ,  C07C2527/236 ,  Y02P20/52 ,  C07C11/04

Abstract: The present invention provides a catalyst for the oxidative dehydrogenation of a lower hydrocarbon to form at least one higher hydrocarbon and/or lower olefin. In one embodiment, the catalyst includes 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, Tb, Dy, Ho, Er, and Tm; X=2; Z=3+AY; A is less than about 1.8, and Y is the number of carbon atoms in the oxycarbonate. When used for the oxidative dehydrogenation of a lower hydrocarbon at a pressure above about 100 psig, the catalyst has a selectivity of at least about 40% to at least one higher hydrocarbon and/or lower olefin. Methods for preparing catalysts taught by the invention and processes for using the catalysts for the oxidative dehydrogenation of lower hydrocarbons are also provided.

公开(公告)号：US06576803B2

公开(公告)日：2003-06-10

申请号：US10124564

申请日：2002-04-16

Applicant: Rick David Cantrell ,  Anca Ghenciu ,  Kenneth Dwight Campbell ,  David Michael Anthony Minahan ,  Madan Mohan Bhasin ,  Alistair Duncan Westwood ,  Kenneth Andrew Nielsen

Inventor： Rick David Cantrell ,  Anca Ghenciu ,  Kenneth Dwight Campbell ,  David Michael Anthony Minahan ,  Madan Mohan Bhasin ,  Alistair Duncan Westwood ,  Kenneth Andrew Nielsen

IPC: C07C5327

CPC classification number: C07C2/84 ,  B01J23/10 ,  B01J27/232 ,  C01F17/005 ,  C01P2002/01 ,  C01P2006/12 ,  C07C5/48 ,  C07C2527/232 ,  C07C2527/236 ,  Y02P20/52 ,  C07C11/04

Abstract: The present invention provides a catalyst for the oxidative dehydrogenation of a lower hydrocarbon to form at least one higher hydrocarbon and/or lower olefin. In one embodiment, the catalyst includes 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, Tb, Dy, Ho, Er, and Tm; X=2; Z=3+AY; A is less than about 1.8, and Y is the number of carbon atoms in the oxycarbonate. When used for the oxidative dehydrogenation of a lower hydrocarbon at a pressure above about 100 psig, the catalyst has a selectivity of at least about 40% to at least one higher hydrocarbon and/or lower olefin. Methods for preparing catalysts taught by the invention and processes for using the catalysts for the oxidative dehydrogenation of lower hydrocarbons are also provided.