Subject: How do you prepare a Aromatic hydrocarbon

I know that one of the ways to form a benzene ring is by the distillation 
of coal, or made by the synthetically from petroleu or acetlene, but what 
i want to know is the chemical equation for these reactions, and for the 
preparation of an aromatic do you just consider the basic benzene ring 

Re: How do you prepare a Aromatic hydrocarbon