TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Material: The alkaline-earth metal is calcium and/or magnesium. Bromine is used to brominate methane. Preferred Composition: The zeolite has silicon (Si):aluminum (Al) ratio of greater than or equal to 5:1, preferably 80:1-280:1. The zeolite doped with an alkaline-earth metal has an alkaline earth metal:Si ratio of greater than or equal to 4:1. The doped zeolite is a ZSM-5-type zeolite doped with calcium (Ca) to Ca:Si ratio of greater than or equal to 4:1.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Material: The alkaline-earth metal is calcium and/or magnesium. Bromine is used to brominate methane. Preferred Composition: The zeolite has silicon (Si):aluminum (Al) ratio of greater than or equal to 5:1, preferably 80:1-280:1. The zeolite doped with an alkaline-earth metal has an alkaline earth metal:Si ratio of greater than or equal to 4:1. The doped zeolite is a ZSM-5-type zeolite doped with calcium (Ca) to Ca:Si ratio of greater than or equal to 4:1.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Component: The hydrocarbons include aromatic hydrocarbon(s), branched alkane(s), and/or olefin(s). They comprise a gasoline grade mixture of hydrocarbons. The aromatic hydrocarbon comprises hydrocarbon(s) of benzene, toluene, xylene, ethylbenzene, mesitylene, or ethylmethylbenzene. The resulting hydrocarbons have greater than or equal to 50% greater than or equal to 6C hydrocarbons and greater than or equal to 70% greater than or equal to 5 hydrocarbons. Preferred Method: The method includes allowing any 1-3C hydrocarbons that are formed to contact the zeolite doped with the alkaline-earth metal to form greater than or equal to 4C hydrocarbons. The methyl bromide is formed by brominating methane. Preferred Condition: The temperature is 225-350degreesC and the pressure is 1-5 bar. EXAMPLE - Methane at 15 psia was bubbled through bromine at 1degreesC at 5 cc/min. The resulting stream of bromine and methane was passed through bromination reactor at 450degreesC and the mixture of methane and bromine-containing compound (CH4-xBrx (where x=0-3) passed into a reactor containing metal oxide/zeolite composite MZ1 (5 g). The output stream from a second reactor contained no brominated products. Based on the methane consumed in the bromination reactor, 10% ethylene, 31% propylene, 3% propane, and 21% butanes/butenes were detected. Trace amounts of 6C species were also detected. After reaction for 5 hours, the methane stream was discontinued and the reactor was purged with helium at 5 cc/min for 10 minutes. A flow of oxygen (O2) into the second reactor was initiated at 525degreesC to regenerate the metal oxide from the metal bromide of the partially spent composite. After 1 hour, the O2 purge was discontinued and the reactor was again purged with helium. The caustic trap used during regeneration was tested for carbonate ion and 1 mmol was found, representing 24% of the converted carbon. The remainder of carbon was found to be higher boiling volatile aromatics (toluene, xylenes and mesitylenes). A second cycle of bromomethanes condensation was initiated at 400degreesC, and the product distribution was found to be identical to the first run. Three more cycles of condensation/ neutralization/regeneration produced the same output of higher hydrocarbons.