Supported rhodium-spinel catalysts and process for producing...

Compositions – Gaseous compositions – Carbon-oxide and hydrogen containing

Reexamination Certificate

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C423S418200, C423S648100, C423S650000, C423S651000, C502S325000

Reexamination Certificate

active

07097786

ABSTRACT:
Rhodium-spinel catalysts with activity for efficiently catalyzing the net partial oxidation of methane at high selectivities for CO and H2products are disclosed, along with their method of making. A syngas production process employing such catalysts for the net catalytic partial oxidation of a C1-C5hydrocarbon (e.g., natural gas or methane) to a product gas mixture comprising CO and H2is also disclosed. Preferred reaction conditions include maintaining the catalyst at a temperature of about 400-1,200° C., superatmospheric pressure, and flow rate sufficient to pass the reactant gas mixture over the catalyst at space velocities of at least about 100,000-25,000,000 hr−1.

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