01607nab a2200193 4500 20260520000815.0 260224s2009 xxu Al2O3 - TiO2/Al2O3 - TiO2 - SiO2 composite-supported bimetallic Pt-Pd catalysts for the hydrodearomatization and hydrodesulfurization of diesel fuel ene. 2009 14/04/2009 ; 14/04/2009 4 p. ; 81-85 Transcripción del resúmen publicado por el autor: Al2O3-TiO2 and Al2O3-TiO2-SiO2 (denoted as AT and ATS) composite oxides were synthesized by the sol-gel method, which were used as supports for bimetallic Pt-Pd catalysts. The typical physicochemical properties of the catalyst samples were characterized by means of N2 adsorption, UV-vis diffuse reflectance spectroscopy (DRS), and X-ray diffraction (XRD). The diesel hydrodearomatization (HDA) and hydrodesulfurization (HDS) activities of the catalysts were evaluated using a microreactor system. In comparison to the Pt-Pd/AT catalysts, all of the Pt-Pd/ATS catalysts showed much higher HDA activities. A 100 h test showed that the Pt-Pd/ATS catalyst had a high equilibrium HDA activity, with 432 ppm sulfur diesel. The enhanced HDA activity and sulfur tolerance of Pt-Pd/ATS were likely attributed to the incorporations of Ti and Si into Al2O3, which optimized the interaction between the catalyst support and active metals. Energy & fuels 23 ARTICULO Wan, Guofu 40833 Duan, Aijun 40834 Zhao, Zhen 40835 169543 169543 0 0 0 0 237362 BAAB BAAB 2026-03-05 200044345 0 200044345 2026-03-05 15:11:45 2026-03-05 ARTICULO