Ronald Lee Cook

US Patent:

7442669, Oct 28, 2008

Filed:

Mar 5, 2003

Appl. No.:

10/382132

Inventors:

David Wickham - Boulder CO, US
Ronald Cook - Lakewood CO, US

Assignee:

TDA Research, Inc. - Wheat Ridge CO

International Classification:

C01F 7/02

US Classification:

502303, 502328

Abstract:

The present invention provides metal-exchanged hexaaluminate catalysts that exhibit good catalytic activity and/or stability at high temperatures for extended periods with retention of activity as combustion catalysts, and more generally as oxidation catalysts, that make them eminently suitable for use in methane combustion, particularly for use in natural gas fired gas turbines. The hexaaluminate catalysts of this invention are of particular interest for methane combustion processes for minimization of the generation of undesired levels (less than about 10 ppm) of NOx species. Metal exchanged hexaaluminate oxidation catalysts are also useful for oxidation of volatile organic compounds (VOC), particularly hydrocarbons. Metal exchanged hexaaluminate oxidation catalysts are further useful for partial oxidation, particularly at high temperatures, of reduced species, particularly hydrocarbons (alkanes and alkenes).