▎ 摘　　要

NOVELTY - Removal of metal contaminant from a fluid hydrocarbon involves contacting a contaminated fluid hydrocarbon comprising a metal contaminant provided in an initial metal concentration with a sorbent comprising a functionalized graphene oxide chosen from graphene oxide treated with an acid and graphene oxide treated with a base under conditions sufficient to provide a purified fluid hydrocarbon comprising a reduced metal concentration of the metal contaminant as compared with the initial metal concentration. USE - Removal of metal contaminant e.g. vanadium, manganese, iron, cobalt, nickel, copper and lead from hydrocarbon for preparing purified liquid hydrocarbon fuel (all claimed) used as jet fuel. ADVANTAGE - The method effectively removes metal contaminant without reducing concentrations of antioxidants, icing inhibitors and corrosion inhibitors. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) Removal of metal contaminant from a liquid hydrocarbon fuel, involves contacting a contaminated mixture comprising a liquid hydrocarbon fuel, at least one fuel additive provided in an initial additive concentration, and a metal contaminant provided in an initial metal concentration, with a sorbent comprising a functionalized graphene oxide chosen from graphene oxide treated with an acid and graphene oxide treated with a base under conditions sufficient to provide a purified hydrocarbon fuel comprising the liquid hydrocarbon fuel, the at least one fuel additive provided in substantially the initial additive concentration, and a reduced metal concentration of the metal contaminant as compared with the initial metal concentration, (2) Preparation of purified liquid hydrocarbon fuel involves contacting contaminated liquid hydrocarbon fuel comprising at least one fuel additive in an initial additive concentration and metal contaminant in an initial metal concentration of more than 5 ppb, with a sorbent comprising a functionalized graphene oxide chosen from graphene oxide treated with an acid and graphene oxide treated with a base under conditions sufficient to produce the purified liquid hydrocarbon fuel comprising the at least one additive in substantially the initial additive concentration, and reducing the concentration of metal the metal contaminant to 5 ppb or less, and (3) Metal contaminant filter system, which comprises (a) a housing (31) defining an interior and an exterior and containing an inlet (37) configured to fluidly couple a source of a fluid hydrocarbon to the interior, an outlet (39) configured to pass fluid hydrocarbon to the exterior from the interior, (b) at least one filter element (41) comprising a sorbent chosen from a functionalized graphene oxide chosen from graphene oxide treated with an acid and graphene oxide treated with a base contained within the interior of the housing, configured to remove a metal contamination from the fluid hydrocarbon in contact with at least one filter element during a predetermined residence time. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the metal contaminant filter system. Housing (31) Inlet (37) Outlet (39) Filter element (41) Sorbent bed (43)