Micro/meso-porous MCM-22/MCM-41 composite was synthesized by the method of nano-assemblling.The reaction performance of MCM-22/MCM-41 composites as catalyst for FCC naphtha upgrading was investigated on a steady flow fixed bed reactor.The aromatization reaction and olefin reduction effect were discussed.The results showed that MCM-22/MCM-41 composite behaves higher aromatization activity and olefin reduction effectiveness compare with MCM-22 zeolite.The aromatics volume content of FCC gasoline increased fro...