Gevo, Inc.

Paul Starkey

Jonathan O Smith

Madeline Sjodin

Leo E Manzer

Steve Donen

Michelle Shebowich

Nicholas McGuire

Austin Vaillancourt

Carolina Salazar

Nicholas Mcguire

The present disclosure provides methods and materials for oligomerization of lower olefins (e.g., C-C) to transportations fuels including diesel and/or jet fuel. The oligomerization employs, in certain embodiments, tungstated zirconium catalysts. Surprisingly, the oligomerizations proceed smoothly in high yields and exhibit little to no sensitivity to the presence of significant amounts of oxygenates (e.g., water, lower alcohols such as C-Calcohols) in the feed stream. Accordingly, the present disclosure is uniquely suited to the production of fuels derived from bio-based alcohols, wherein olefins produced from such bio-based alcohols typically contain high levels of oxygenates.

Conversion of mixtures of C&#x2014;Colefins to jet fuel and/or diesel fuel in high yield from bio-based alcohols

This application relates to the production of functionalized lower hydrocarbons and more particularly to the process of converting ethanol to functionalized lower hydrocarbons. In particular embodiments, the ethanol to functionalized lower hydrocarbon conversion is catalyzed by a ZnZrAQMnOmixed oxide catalyst or a bifunctional heterogeneous catalyst. In particular embodiments, the ethanol to be converted is present at molar concentrations in the reactor feed equal to or exceeding 14%.

Methods for conversion of ethanol to functionalized lower hydrocarbons and downstream hydrocarbons

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Denver, CO, United States of America

Paul Starkey