ACTIVATED CARBON FOR FUEL PURIFICATION

摘要

An activated carbon, disclosed as useful in purification and depolarization of hydrocarbon fuel, particularly gasoline, is characterized by inclusion therein of polymerized phosphoric acid. The conversion of phosphoric acid to a polymerized phosphate content (e.g. as residual in phosphoric acid-activated carbon) results from the activated carbon having been treated with inert gas or carbon dioxide at from about 1000°F to about 2000°F for at least 5 minutes.