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Effect of temperature and concentration in catalytic deactivation of a parallel (competitive) reaction system: Application to hydrotreating of vacuum gas oil
Author(s) -
Bruzzanese Adriana,
Galiasso Roberto
Publication year - 2001
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450790409
Subject(s) - exothermic reaction , hydrodesulfurization , adiabatic process , catalysis , chemistry , flue gas desulfurization , microreactor , thermodynamics , packed bed , nuclear engineering , analytical chemistry (journal) , chemical engineering , organic chemistry , chromatography , physics , engineering
The temperature‐time sequences to maintain constant the concentration of one product in a two‐parallel (competitive) exothermic reaction system undergoing catalyst deactivation are analyzed. Kinetics is described by a power law model and linear particle deactivation. A computational algorithm and a parametric study for adiabatic packed bed reactors are presented. It is found that temperature‐time trajectories are strongly influenced by mean activity, and the selectivity. Experimental information for Hydrotreating of vacuum gas oil was obtained keeping constant desulfurization, while hydrocracking and denitrogenation are function of time. Trajectories and final operating temperature are predicted with error below 2% compared to real operation.