TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Components: The first reactor contains cupric oxide/zinc oxide/aluminum oxide catalysts. The second reactor contains gamma-alumina catalysts. The third reactor contains ZSM-5 catalysts. The fourth reactor contains group IX or X metal oxide catalyst on alumina reduced in the presence of hydrogen and carbon monoxide and in the absence of sulfur, where the group IX or X metal oxide is nickel oxide. The fourth reactor contains group IX or X metal oxide catalyst combined with a group VI metal oxide catalyst on alumina reduced in the presence of hydrogen and carbon monoxide and in the absence of sulfur, where the group IX or X metal oxide is cobalt oxide and the group VI metal is molybdenum oxide forming cobalt molybdate. The freezing point of the third exit stream is 30-50 degrees C. The freezing point of the fuel is less than -5 degrees C. The first catalyst is cupric oxide/zinc oxide/aluminum oxide. The second catalyst is gamma-alumina. The third catalyst is ZSM-5. The fourth catalyst is group IX or X metal oxide catalyst on alumina reduced in the presence of hydrogen and carbon monoxide and in the absence of sulfur.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Process: The first reactor operates at 190-300 degrees C. The second reactor operates at 300-450 degrees C. The third reactor operates at 300-500 degrees C. The fourth reactor operates at 100-220 degrees C. In the process prior to step (e), the fourth exit stream is separated into a first stream containing water, a second stream containing unreacted synthesis gas, and a third stream containing fuel. The first, second, and third exit streams are heated or cooled prior to being passed through the second, third, and fourth reactors, respectively. The less substituted aromatics are toluene and xylene. The synthesis gas is initially passed directly into the third reactor. Preferred Components: The first, second, third, and fourth reactors operate at 50-100 atmospheres. The heavy gasoline contains greater than or equal to 8C aromatics. The heavy gasoline contains trimethyl benzene, tetramethyl benzene, and durene. The synthesis gas contains alkane and/or olefin hydrocarbons molecules with at least two carbon atoms and/or larger cyclic and aromatic molecules. EXAMPLE - Copper/zinc oxide/alumina (400 g) catalyst, gamma-alumina (200 g), zeolite ZSM-5 (200 g) and a nickel on alumina catalyst (50 g) were held at 130 degrees C in a reactor. Then liquid was collected in the separator at the rate of 7.04 g/hour hydrocarbon and byproduct water to obtain the hydrocarbon with a reduced durene content.