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United States Patent Application

View the Complete Application at the US Patent & Trademark Office
Methods and apparatuses are provided for deoxygenating pyrolysis oil. A method includes contacting a pyrolysis oil with a deoxygenation catalyst in a first reactor at deoxygenation conditions to produce a first reactor effluent. The first reactor effluent has a first oxygen concentration and a first hydrogen concentration, based on hydrocarbons in the first reactor effluent, and the first reactor effluent includes an aromatic compound. The first reactor effluent is contacted with a dehydrogenation catalyst in a second reactor at conditions that deoxygenate the first reactor effluent while preserving the aromatic compound to produce a second reactor effluent. The second reactor effluent has a second oxygen concentration lower than the first oxygen concentration and a second hydrogen concentration that is equal to or lower than the first hydrogen concentration, where the second oxygen concentration and the second hydrogen concentration are based on the hydrocarbons in the second reactor effluent.
Baird, Lance Awender (Prospect Heights, IL), Brandvold, Timothy A. (Arlington Heights, IL), Frey, Stanley Joseph (Palatine, IL)
14/ 551,797
November 24, 2014
GOV. FUNDING STATEMENT [0001] This invention was made with Government support under DE-EE0002879 awarded by the Department of Energy. The Government has certain rights in this embodiment.