PROCESS FOR PRODUCING A MIXTURE OF HIGH-PURITY C{11 AROMATIC HYDROCARBONS

摘要

High purity C8 aromatic hydrocarbons are produced by prefractionating a C6-400 DEG F. naphtha feed fraction into a 270 DEG F. to 275 DEG F. endpoint fraction and catalytically reforming this 270 DEG F. to 275 DEG F. endpoint fraction to produce a reformate having a minimum of C9+ hydrocarbons. The reformate is then passed to a deoctanizing zone and a rerun column zone to recover a mixture of high-purity C8 aromatic hydrocarbons.