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Abstract

A method for chemically reducing carbon dioxide (CO₂) with a red mud catalyst composition includes introducing a gaseous mixture of CO₂ and H₂ into a reactor containing red mud catalyst particles of the red mud catalyst composition; and reacting at least a portion of the CO₂ and H₂ in the gaseous mixture in the presence of the red mud catalyst composition at a temperature of 200 to 800° C., and under a pressure ranging from 5 to 100 bar to form a gaseous product including a chemical reduction product of the CO₂. The gaseous product contains 20 to 50 wt. % methane, 1 to 20 wt. % ethane, 0.5 to 10 wt. % propane, 0.01 to 1 wt. % methanol, 1 to 70 wt. % dimethyl ether, and 1 to 50 wt. % carbon monoxide, each wt. % based on a total weight of the gaseous product.

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First Claim