Syngas conversion offers a potential alternative to flaring or reinjection for monetization of associated gas. However, certain deployment applications disfavor the hydroprocessing infrastructure required to upgrade the linear paraffin wax product for blending or transport. We describe here Chevron's Gas Conversion Catalysis (GCCTM) technology, a commercially viable hybrid syngas conversion catalyst comprising both a Fischer-Tropsch active metal and a zeolite component that truncates the Anderson-Schultz-Flory (ASF) distribution to provide a liquid hydrocarbon product without the need for downstream hydroprocessing. We demonstrate that, using appropriate synthesis and activation methods, this integral catalyst provides for a high yield of C5+ liquid hydrocarbons free of a solid wax phase with a minimum of undesired C1 to C4 gas products. Lastly, we show that the unique nature of this integrated catalyst system allows for process conditions amenable to long catalyst life and acceptable deactivation rates.

Chevron's gas conversion catalysis: Hybrid catalysts for wax-free Fischer-Tropsch synthesis

245th National Meeting (2013)

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