NOVELTY - Aromatic hydrocarbons and/or C4+ non-aromatic hydrocarbons are produced from low molecular weight alkanes by contacting low molecular weight alkanes with halogen to produce monohaloalkane; reacting monohaloalkane in the presence of coupling catalyst to produce a stream comprising aromatic hydrocarbons and/or C4+ non-aromatic hydrocarbons and halogenated organic impurities; hydrotreating to convert most of the impurities to hydrogen halide and hydrocarbons; and contacting stream with purification absorbent capable of reducing quantity of refractory halogenated organic impurities.    USE - Method for producing aromatic hydrocarbons and/or C4+ non-aromatic hydrocarbons from low molecular weight alkanes (claimed).    ADVANTAGE - The method is capable of removing brominated organic impurities from hydrocarbon streams.    DETAILED DESCRIPTION - Producing aromatic hydrocarbons and/or C4+ non-aromatic hydrocarbons from low molecular weight alkanes, preferably methane, comprises:    (A) contacting low molecular weight alkanes, preferably methane, with halogen, preferably bromine, to produce monohaloalkane, preferably monobromomethane;    (B) reacting monohaloalkane in the presence of a coupling catalyst to produce a stream comprising aromatic hydrocarbons and/or C4+ non-aromatic hydrocarbons and halogenated organic impurities;    (C) hydrotreating the stream from step (B) to convert most of the impurities to hydrogen halide, preferably hydrogen bromide (HBr), and hydrocarbons while minimizing the hydrogenation of the aromatic hydrocarbons, to produce a stream comprising aromatic hydrocarbons and refractory halogenated organic impurities;    (D) contacting the stream from step (C) with purification absorbent capable of reducing the quantity of refractory halogenated organic impurities in the stream from (C), preferably to a level of less than or equal to 1 ppm weight as halogen, the absorbent being a metal compound, solid metal or molten metal; and    (E) separating aromatic hydrocarbons and/or C4+ non-aromatic hydrocarbons from the product mixture of step (D) to produce aromatic hydrocarbons and/or C4+ non-aromatic hydrocarbons.    DESCRIPTION OF DRAWING(S) - The drawing is a flow diagram showing production of aromatic hydrocarbons and/or non-aromatic hydrocarbons.    Bromination reactor (100)    Bromine generation reactor (110)    Reproportionation reactor (120)    Distillation column (130)    Coupling reactor (140)    Hydrotreater (170)