[1] Penn State Univ, Fuel Sci Program, University Pk, PA 16802 USA
[2] Penn State Univ, Lab Hydrocarbon Proc Chem, University Pk, PA 16802 USA
[3] Akzo Nobel Catalysts, Prod Dev FCC Worldwide, NL-3800 AE Amersfoort, Netherlands
[4] Chiyoda Corp, Environm Technol Ctr, Kanagawa Ku, Yokohama, Kanagawa 221, Japan
[5] Sandia Natl Labs, Catalysis & Chem Technol Dept, Albuquerque, NM 87185 USA