Open AccessHydrocracking process and kinetic equation: Effect of the fluoride on the performance of the Ni‐Mo catalyst
Author(s) -
Tavasoli Ahmad,
Taghizadeh Yusefabad Ehsan,
Zamani Yahya
Publication year - 2021
Publication title -
energy science and engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.638
H-Index - 29
ISSN - 2050-0505
DOI - 10.1002/ese3.876
Subject(s) - naphtha , catalysis , fluoride , hexadecane , cracking , selectivity , chemistry , diesel fuel , kerosene , hydrodesulfurization , chemical engineering , nuclear chemistry , inorganic chemistry , organic chemistry , engineering
Abstract The present paper investigates the fluoride effects on the performance of the Ni‐Mo/ASA‐Al 2 O 3 catalyst. The Ni‐Mo‐F 0 /ASA‐Al 2 O 3 and Ni‐Mo‐F 3.6 /ASA‐Al 2 O 3 catalysts were prepared and characterized using a number of techniques such as BET, XRD, XRF, and NH 3 ‐TPD. The performance of the catalysts was investigated in the N‐hexadecane hydrocracking, and liquid products were analyzed using gas chromatography–mass spectroscopy (GC‐MS). Results showed when the fluoride was loaded to the catalysts, the N‐hexadecane conversion increase, from 88.44% to 98.83%, and the selectivity of light gas products increase slightly, from 4.64% to 8.14%. Finally, the performance of the Ni‐Mo‐F 3.6 /ASA‐Al 2 O 3 catalyst was studied in the VGO hydrocracking and discrete lumping kinetic equations of this process were investigated. In this study, the production of the produced oil cuts, diesel, kerosene, naphtha, and gas was formulated and the kinetic constants of the VGO hydrocracking in the presence of the catalyst were calculated using the Levenberg‐Marquardt algorithm.