NOVELTY - Process comprises: heating at least a portion of metal bromide in an oxidized valence state in a first fluidized bed to form at least bromine vapor and metal bromide in a reduced valence state; contacting metal bromide in the reduced valence state in a second fluidized bed with the bromine vapor to form metal bromide in the oxidized state; conveying the metal bromide in the reduced valence state from the first fluidized bed to the second fluidized bed; and conveying the metal bromide in the oxidized state from the second fluidized bed to the first fluidized bed.    USE - The process is useful for converting gaseous alkanes to liquid hydrocarbons, which is useful for producing fuels.    ADVANTAGE - The process is capable of converting gaseous alkanes to liquid hydrocarbons with less energy consumption in a safe, simple and an economical manner.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for:    (1) a process-II comprising thermally decomposing a metal bromide in the oxidized valence state to form at least bromine vapor and the metal bromide in the reduced valence state, and reacting a gas comprising lower molecular weight alkanes and at least a portion of the bromine vapor to form the alkyl bromides and hydrobromic acid occur in separate vessels; and    (2) a process-III comprising (a) reacting hydrogen bromide with a metal oxide to form at least a metal bromide, (b) oxidizing the metal bromide with the oxygen containing gas to form the bromine vapor, (c) reacting the bromine vapor with the metal bromide in the reduced valence state to form the metal bromide in the oxidized valence state, (d) contacting the metal bromide in the oxidized valence state with the gaseous feed comprising lower molecular weight alkanes at a sufficient temperature to thermally decompose the metal bromide in the oxidized valence state to form at least additional bromine vapor, and (e) reacting at least a portion of the lower molecular weight alkanes and the additional bromine vapor to form the alkyl bromides, or comprising (a)-(b) as above per se, storing the first portion of bromine vapor as the metal bromide in the oxidized valence state, (cc) releasing at least some quantity of the first portion of the bromine vapor by thermally decomposing the metal bromide in the oxidized valence state, and (dd) transporting the gas comprising lower molecular weight alkanes with the quantity of bromine vapor released by thermally decomposing at least a portion of the metal bromide in an oxidized valence state.    DESCRIPTION OF DRAWING(S) - The figure shows a block diagram of a process for converting gaseous alkanes to liquid hydrocarbons.