D. Kennepohl et E. Sanford, CONVERSION OF ATHABASCA BITUMEN WITH DISPERSED AND SUPPORTED MO-BASEDCATALYSTS AS A FUNCTION OF DISPERSED CATALYST CONCENTRATION, Energy & fuels, 10(1), 1996, pp. 229-234
A hydrocracking study of Athabasca bitumen using a batch reactor with
varying concentrations of a microdispersed metal sulfide catalyst (MoS
2) in the presence and absence of a common commercial supported cataly
st is reported. The work compares the effects of a wide range of MoS2
dispersed catalyst concentrations (0-6000 ppm) on the conversion of re
siduum and the effects of using that dispersed catalyst with a commerc
ial extruded hydrogenation catalyst. Hydrocracking runs using only the
MoS2 microdispersed catalyst showed reduced coke formation only at lo
w Mo concentrations. In the presence of the supported catalyst, solids
formation increased significantly and overall catalyst performance wa
s lowered as a function of increased MoS2 microdispersed catalyst conc
entration.