Modeling the Hydrocracking Kinetics of Atmospheric Residue in Hydrotreating Processes by the Continuous Lumping Approach

• DOI: 10.1021/ef200153p
• Publication Date: 2011-04-22T15:30:09Z
• Authors: Haitham M. S. Lab...; Faisal S. AlHumaidan
• Keywords: Hydrodenitrogenation; Boiling point; Space velocity; Residue (chemistry); Fluid catalytic cracking

The primary objective of this work is to study the hydrocracking associated with hydrotreatment atmospheric residue (AR) feedstock and develop a kinetic model describing undergoing cracking reactions. Experimental data were obtained for three types conventional hydrotreating catalysts [hydrodesulfurization (HDS), hydrodemetalization (HDM), hydrodenitrogenation (HDN)] at space velocities operating temperatures. developed based on continuous lumping approach, which assumes concentration reactivity reacting mixtures. Species concentrations represented as an integro-differential equation only five modeling parameters. models predicted profile complete true boiling point (TBP) range reasonably high accuracy. Analysis experimental results indicated that upgrading residual fractions achieved through both catalytic thermal conversion, where extent each depends upon catalyst type conditions. yield distillate fraction was found be highest HDN followed by HDS HDM catalysts.