Catalyst for oxidative dehydrogenation of paraffinic hydrocarbons and use of this catalyst

US6130183A · kind A · utility

Assignees

• Mannesmann AG · DE
• K.T.I. Group B.V. · NL

Inventors

• Mordechay Herskowitz · Meitar, IL
• Miron Landau · Beer Sheva, IL
• Mark Kaliya · Beer Sheva, IL

Key dates

• Filing date: Jul 9, 1997
• Grant date: Oct 10, 2000
• Expiry date: Jul 9, 2017

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C2527/24
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Disclosed is a novel catalyst and process using the novel catalyst for the oxidative dehydrogenation and cracking of C.sub.2 to C.sub.5 paraffins (homogeneous hydrocarbons or mixtures such as liquified gas to C.sub.2 to C.sub.5 olefins in the presence of an oxygen-containing gas and water vapor. The novel catalyst has the following formula EQU X.sub.a Y.sub.b Z.sub.c A.sub.d O.sub.x, where, referring to the Periodic System, PA1 X is an element of Group II and/or IV b (Mg, Ca, Za, Ti, Zr . . . ) PA1 Y is a Lanthanide and/or an element of Group IVa or Va (Ce, La, Nd, Dy, Sn, Pr, Sb, Pb . . . ); PA1 Z is an element of Group I (Li, Na, K . . . ); PA1 A is an element of Group VII (Cl, Br, I . . . ); PA1 O is oxygen; and PA1 a is 0.4 to 0.9, PA1 b is 0.005 to 0.3, PA1 c is 0.05 to 1.5, PA1 d is 0.05 to 0.8, and PA1 x is determined by the valance requirements of metals and halogens. The catalyst is used in the form of pressed spherical pellets or extrudates with added binder or deposited on a carrier material of one of the aforementioned oxidic components or of a separate carrier material. The weight-related space velocity, relative to the hydrocarbons used, is in the range of 0.1 to 20 h…