TY - JOUR ID - 102446 TI - Nickel Hydrogenation Composite Catalysts Modified by Zirconium in Competitive Benzene Hydrogenation: Effect of Modifiers JO - Physical Chemistry Research JA - PCR LA - en SN - 2322-5521 AU - Parsafard, Nastaran AU - Peyrovi, Mohammad Hassan AU - Abdali Hajiabadi, Mahdi AD - Kosar University of Bojnord, Department of Applied Chemistry, North Khorasan, Iran AD - Faculty of Chemistry Science and Petroleum, Department of Physical Chemistry, University of Shahid Beheshti, Tehran, Iran Y1 - 2020 PY - 2020 VL - 8 IS - 2 SP - 203 EP - 213 KW - Impregnation KW - Hydrogenation KW - Conversion KW - Selectivity KW - Stability DO - 10.22036/pcr.2020.206012.1694 N2 - A co-impregnation method was applied to the Ni/Zr-HMS/HZSM-5 catalyst (with various amounts of zirconium) during the hydrogenation of benzene. The physicochemical properties of the prepared nickel catalyst were characterized using X - ray diffraction, X - ray fluorescence, Fourier transform infrared spectroscopy, ultraviolet-visible diffuse reflectance spectroscopy, temperature-programmed desorption of ammonia, H2 chemisorption, N2 adsorption - desorption, and thermogravimetric analysis. The catalytic performance was assessed on a fixed-bed reactor (reaction temperature between 130 °C and 190 °C). The results indicated that the nickel catalyst with Si/Zr = 35 exhibited better catalytic performance and stability than others, so providing a better selectivity in long-term performance. UR - https://www.physchemres.org/article_102446.html L1 - https://www.physchemres.org/article_102446_39864a1893834cd646c83d442995ab39.pdf ER -