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ETHYLENE YIELD IN OXIDATIVE DEHYDROGENATION OF ETHANE AND ETHANE CONTAINING HYDROCARBON MIXTURES

United States Patent Application

20170226030
A1
View the Complete Application at the US Patent & Trademark Office
Methods and systems are provided for oxidative dehydrogenation of a hydrocarbon feed stream to produce a product stream with improved ethylene yield. The methods can include the steps of (i) combining a recycle stream with the feed stream to form a reactor feed stream, (ii) contacting the reactor feed stream with an oxide-based redox catalyst to produce the product stream comprising ethylene and one or more byproducts selected from the group consisting of methane, ethane, other byproducts, and mixtures thereof, and (iii) removing all or a part of the methane and ethane from the product stream to produce the recycle stream. Systems for the oxidative dehydrogenation (ODH) of a hydrocarbon feed stream are also provided to produce a product stream with improved ethylene yield. The systems and methods can include an oxide-based redox catalyst, such as Mg.sub.6MnO.sub.8, Cu.sub.6PbO.sub.8, and Ni.sub.6MnO.sub.8.
Li, Fanxing (Raleigh, NC), Neal, Luke M. (Raleigh, NC)
15/ 422,743
February 2, 2017
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH [0002] This invention was made with government support under Award Number DE-AR0000327 awarded by The Department of Energy. The government has certain rights in the invention.