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Abstract

A method for producing olefins comprising (a) introducing to an isothermal reactor a reactant mixture comprising CH₄ and O₂, wherein the reactor comprises a catalyst bed comprising a catalyst, wherein a catalyst bed temperature is 750-1,000° C., and wherein the reactor has a residence time of 1-100 ms; (b) wherein isothermal conditions minimize hot spots in the bed, thereby decreasing deep oxidation reactions; (c) allowing the reactant mixture to contact the catalyst and react via oxidative coupling of CH₄ reaction to form a product mixture comprising C₂₊ hydrocarbons (olefins and paraffins; C₂ hydrocarbons and C₃ hydrocarbons) and synthesis gas (H₂ and CO), wherein the product mixture has an olefin/paraffin molar ratio of from 0.5:1 to 20:1, and wherein the product mixture has a H₂/CO molar ratio of from 0.2:1 to 2.5:1; (d) recovering the product mixture from the reactor; and (e) recovering C₂ hydrocarbons and/or synthesis gas from the product mixture.

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First Claim