Mineral oils: processes and products – Chemical conversion of hydrocarbons – Cracking
Reexamination Certificate
2011-04-26
2011-04-26
Wood, Elizabeth D (Department: 1732)
Mineral oils: processes and products
Chemical conversion of hydrocarbons
Cracking
C208S143000, C208S21600R, C208S2160PP, C208S217000, C208S25100H, C208S25400R
Reexamination Certificate
active
07931799
ABSTRACT:
A process for preparing a bulk multi-metallic catalyst for hydrotreating heavy oil feeds is provided. The catalyst is particularly suitable for hydrotreating heavy oil feeds having a boiling point in the range of 343° C. (650° F.)- to 454° C. (850° F.), an average molecular weight Mn ranging from 300 to 400, and an average molecular diameter ranging from 0.9 nm to 1.7 nm. The bulk multi-metallic catalyst is prepared by sulfiding a catalyst precursor that has an essentially monomodal pore volume distribution with at least 95% of the pores being macropores, and having a total pore volume of at least 0.08 g/cc.
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Dykstra Dennis
Fong Darren
Kuperman Alexander E.
Maesen Theodorus
Uckung Soy
Chevron U.S.A. Inc.
Wood Elizabeth D
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