Method of CO and/or CO2 hydrogenation using doped mixed-metal oxides

US9150476B1 · kind B1 · utility

Assignee

• U.S. Department of Energy · US

Inventors

• Dushyant Shekhawat · Morgantown, US
• David A. Berry · Brookline, US
• Daniel J. Haynes · Morgantown, US
• Victor Abdelsayed · Morgantown, US
• Mark W. Smith · Morgantown, US
• James J. Spivey · Baton Rouge, US

Key dates

• Filing date: Aug 2, 2013
• Grant date: Oct 6, 2015
• Expiry date: Aug 2, 2033

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C2523/63
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A method of hydrogenation utilizing a reactant gas mixture comprising a carbon oxide and a hydrogen agent, and a hydrogenation catalyst comprising a mixed-metal oxide containing metal sites supported and/or incorporated into the lattice. The mixed-metal oxide comprises a perovskite, a pyrochlore, a fluorite, a brownmillerite, or mixtures thereof doped at the A-site or the B-site. The metal site may comprise a deposited metal, where the deposited metal is a transition metal, an alkali metal, an alkaline earth metal, or mixtures thereof. Contact between the carbon oxide, hydrogen agent, and hydrogenation catalyst under appropriate conditions of temperature, pressure and gas flow rate generate a hydrogenation reaction and produce a hydrogenated product made up of carbon from the carbon oxide and some portion of the hydrogen agent. The carbon oxide may be CO, CO2, or mixtures thereof and the hydrogen agent may be H2. In a particular embodiment, the hydrogenated product comprises an alcohol, an olefin, an aldehyde, a ketone, an ester, an oxo-product, or mixtures thereof.