Fereshteh Rashidi - School of Chemistry, University College of Science, University of Tehran, Tehran, IRAN
Fatohollah Salehirad - N.I.O.C Research Institute of Petroleum Industry (RIPI), Tehran, IRAN
ali nemati kharrat - School of Chemistry, University College of Science, University of Tehran, Tehran, IRAN
Alimorad Rashidi - N.I.O.C Research Institute of Petroleum Industry (RIPI), Tehran, IRAN

FCC process is the most important catalytic cracking process in the world. The essential component in the FCC catalyst is the Y (REHY, USY, REY, REUSY) zeolite. Ultrastable Y (USY) is a highly acidic zeolite (FAU) commonly used in hydrocracking and fluid catalytic cracking (FCC) catalysts. In this work, the USY zeolite was synthesized from Na-Y zeolite by chemically method and then they were calcined in the high temperatures to investigate their thermal stabilization. Finally they were characterized by analytical techniques such as XRD and IR.

FCC, Catalytic Cracking, USY