Abstract: catalytic pyrolysis cracking (CPP) naphtha contains a large quantity of mono-olefin, di-olefin, alkenyl aromatic, indene and other unsaturated hydrocarbons as well as sulfur, nitrogen, oxygen in organic compound. It can result in unstable cracking naphtha, which tends to form condensate like resin and impurities. However, CPP naphtha can be treated by two stage hydrogenation process to produce on-specified aromatic extraction raw material. The first time commercial test shows that the two stage hydrogenation technology for producing aromatic extraction materials from pyrolysis naphtha is reliable and stable.

Key words: catalytic pyrolysis, naphtha, hydrogenation, aromatic extraction, commercial trial