Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Sulfur or compound containing same
Reexamination Certificate
2009-04-29
2011-11-15
Wood, Elizabeth D (Department: 1732)
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Sulfur or compound containing same
C502S216000, C502S219000, C502S221000, C502S152000, C502S168000, C502S170000, C502S208000, C502S209000, C502S211000, C502S213000, C502S223000
Reexamination Certificate
active
08058203
ABSTRACT:
A method for preparing a bulk multi-metallic suitable for hydrotreating heavy oil feeds is provided. In the process of preparing the catalyst precursor which is subsequently sulfided to form the bulk catalyst, non-agglomerative drying is employed to keep the catalyst precursor from aggregating/clumping, resulting in a catalyst precursor with optimum porosity with at least 90% 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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