Production of aromatic hydrocarbons

Claim 1

A PROCESS FOR PRODUCING AROMATIC HYDROCARBON COMPRISING PASSING A FEED STREAM CONTAINING ALIPHATIC HYDROCARBONS HAVING AT LEAST 6 CARBON ATOMS CONNECTED TOGETHER IN A LINEAR CHAIN INTO A REACTION ZONE HAVING A DEHYDROGENATION CATALYST THEREIN CAPABLE OF CATALYZING THE REACTION TO PRODUCE AROMATIC HYDROCARBONS, PASSING OXIDE OF SULFUR PROVIDING MATERIALS INTO SAID REACTION ZONE IN AN AMOUNT SUCH THAT THERE IS PRESENT IN SAID REACTION ZONE AN AMOUNT OF OXIDE OF SULFUR CORRESPONDING TO AT LEAST ABOUT 0.4 MOLE OF SO2 PER MOLE OF HYDROCARBON TO BE CONVERTED TO AROMATIC HYDROCARBON, CONTROLLING THE AMOUNT OF SULFUR PROVIDING MATERIALS INTRODUCED INTO SAID REACTION ZONE SUCH THAT SUBSTANTIALLY NO OXIDE OF SULFUR IS PRESENT IN THE REACTION EFFLUENT, AND RECOVERING A REACTION EFFLUENT FROM SAID REACTION ZONE CONTAINING A SUBSTANTIALLY INCREASED AMOUNT OF AROMATIC HYDROCARBONS RESULTING FROM THE CONVERSION OF SAID ALIPHATIC HYDROCARBONS.