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Kinetics of aromatics hydrogenation of bitumen‐derived gas oils
Author(s) -
Yui Sok M.,
Sanford Emerson C.
Publication year - 1991
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.5450690507
Subject(s) - hydrodesulfurization , space velocity , asphalt , chemistry , catalysis , hydrogen , carbon fibers , thermodynamics , kinetic energy , organic chemistry , kinetics , materials science , physics , composite number , quantum mechanics , composite material , selectivity
Using pilot scale trickle‐bed reactors with commercial NiMo/Al 2 O 3 catalysts, hydrotreating of five bitumen‐derived gas oils was conducted. Aromatic carbon was determined by l3 C NMR spectra. A simple power law kinetic model of aromatics hydrogenation was developed, assuming a first order reversible reaction which accounts for both forward and reverse rate constants. The model includes power terms for space velocity and hydrogen partial pressure, and the ratio of naphthenes and aromatics in the feed. The model was tested with our experimental results and kinetic parameters were determined. Aromatic carbon calculated with these parameters is in good agreement with observed results.