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US 6,218,333 B1Granted
Preparation of a hydrotreating catalyst
AssigneeShell Oil Company
InventorsAlexei Grigorievich Gabrielov, Opinder Kishan Bhan
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Abstract
There is provided a process for preparing a catalyst wherein the volatile content of an impregnated support is reduced in one or more steps, wherein at least one volatile content reduction step is performed in the presence of a sulfur containing compound.
Claims18
A process for preparing a catalyst, said process comprising:
- providing a porous support;
- combining said support with one or more catalytically active metals, thereby forming a catalyst precursor having a volatile content;
- and
- reducing the volatile content of the catalyst precursor in one or more steps, wherein at least one volatile content reduction step is performed in the presence of at least one sulfur containing compound, resulting in at least one combined volatile content reduction-sulfurizing step;
- wherein said catalyst precursor does not reach calcining temperatures prior to said at least one combined volatile content reduction-sulfurizing step.
2 more elements
A process for preparing a hydrotreating catalyst suitable for hydrotreatment of a hydrocarbonaceous feedstock, said process comprising:
- combining a porous support with one or more catalytically reactive metals selected from Group VI and Group VIII of the Periodic Table, thereby forming a catalyst precursor having a volatile content;
- and
- reducing the volatile content of the catalyst precursor in one or more steps, wherein at least one volatile content reduction step is performed in the presence of at least one sulfur containing compound resulting in at least one combined volatile content reduction-sulfurizing step;
- wherein said catalyst precursor does not reach calcining temperatures prior to said at least one combined volatile content reduction-sulfurizing step.
1 more element
Dependencies are inferred from the claim text.