Principle design and trial for hydrotreating/hydrocracking catalyst

PETR 23

Sachio Asaoka, asaoka@env.kitakyu-u.ac.jp1, Kyosuke Ito1, Shinji Minohara1, M. Ashraf Ali2, and H. Saeed Bamufleh3. (1) Faculty of Environmental Engineering, The University of Kitakyushu, 1-1 Hibikino, Wakamatsu-ku, Kitakyushu, 808-0135, Japan, (2) Center for Refining and Petrochemicals, The Research Institute, King Fahad University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia, (3) Chemical and Materials Engineering Dept, King Abdulaziz University, P.O. Box 80204, Jeddah, 21589, Saudi Arabia
We tried a principle design for hydrotreating/ hydrocracking catalyst based on a new concept. Three orders of nano-pores combined with metal sites and acids can be availed to design concertedly-porous catalyst for hydrotreating /hydrocracking. Pores at the order of sub-nanometer are sensitive to molecular structure of reactants and products in hydrogen gas phase. Pores at the order of nanometer or tens nanometer are common to reaction system in gas-liquid mixed phase. Typical example of the improvement is as for deep hydrodesulfurization (HDS) and hydrocracking (HC) of diesel or gas oil (GO). The most typical result is (Ni-Mo)/(TiO2-Al2O3)-nanoporous Al2O3-USY catalyst. This three component catalyst works efficiently due to the concerted components. This effect was also confirmed by reaction test with model compound.