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Process to separate alkali metal salts from alkali metal reacted hydrocarbons

United States Patent

9,688,920
June 27, 2017
View the Complete Patent at the US Patent & Trademark Office
A process to facilitate gravimetric separation of alkali metal salts, such as alkali metal sulfides and polysulfides, from alkali metal reacted hydrocarbons. The disclosed process is part of a method of upgrading a hydrocarbon feedstock by removing heteroatoms and/or one or more heavy metals from the hydrocarbon feedstock composition. This method reacts the oil feedstock with an alkali metal and an upgradant hydrocarbon. The alkali metal reacts with a portion of the heteroatoms and/or one or more heavy metals to form an inorganic phase containing alkali metal salts and reduced heavy metals, and an upgraded hydrocarbon feedstock. The inorganic phase may be gravimetrically separated from the upgraded hydrocarbon feedstock after mixing at a temperature between about 350.degree. C. to 400.degree. C. for a time period between about 15 minutes and 2 hours.
Gordon; John Howard (Salt Lake City, UT), Alvare; Javier (Cottonwood Heights, UT), Larsen; Dennis (Salt Lake City, UT), Killpack; Jeff (Sandy, UT)
FIELD UPGRADING LIMITED (Calgary, CA)
14/ 253,286
April 15, 2014
U.S. GOVERNMENT INTEREST This invention was made with government support under Contract No. DE-FE0000408 awarded by the U.S. Department of Energy. The government has certain rights in the invention.