ABSTRACT
ABSTRACT This work reviews compounds such as CoMo2S4 and NiMo3S4, which
contain the proper elements in proportions that closely match the active phases in commercial hydrotreating catalysts. The compounds are believed to be inactive by themselves, but the packing density of the Mo atoms in them is similar to that in MoS2. This was useful years ago in making preliminary estimates of the upper limits of the amounts of catalytic metals that could be dispersed on alumina supports. The estimates were important in guiding experimental programs that eventually led to some of today’s most active high metals hydrotreating catalysts.
