Patent Number: 6,166,283

Title: On-line synthesis and regenerating of a catalyst used in autothermal oxidation

Abstract: An on-line method of synthesizing or regenerating catalysts for autothermal oxidation processes, specifically, the oxidation of paraffinic hydrocarbons, for example, ethane, propane, and naphtha, to olefins, for example, ethylene and propylene. The catalyst comprises a Group 8B metal, for example, a platinum group metal and, optionally, a promoter, such as tin, antimony, or copper, on a support, preferably a monolith support. On-line synthesis or regeneration involves co-feeding a volatile Group 8B metal compound and/or a volatile promoter compound with the paraffinic hydrocarbon and oxygen into the oxidation reactor under ignition or autothermal conditions.

Inventors: Bharadwaj; Sameer S. (Midland, MI), Maj; Joseph J. (Midland, MI), Siddall; Jonathan H. (Midland, MI)

Assignee: The Dow Chemical Company

International Classification: B01J 23/644 (20060101); B01J 23/40 (20060101); B01J 23/54 (20060101); B01J 23/62 (20060101); B01J 23/70 (20060101); B01J 23/76 (20060101); B01J 23/89 (20060101); B01J 23/90 (20060101); B01J 23/96 (20060101); B01J 35/04 (20060101); B01J 35/06 (20060101); B01J 37/02 (20060101); B01J 37/00 (20060101); B01J 35/00 (20060101); C07C 5/48 (20060101); C07C 5/00 (20060101); C10G 11/02 (20060101); C10G 27/04 (20060101); C10G 11/00 (20060101); C10G 11/22 (20060101); C10G 27/00 (20060101); B01J 21/10 (20060101); B01J 21/04 (20060101); B01J 21/00 (20060101); B01J 37/18 (20060101); C07C 005/327 (); C07C 005/373 (); C07C 005/333 ()

Expiration Date: 12/26/2017