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US 4,725,569 AGranted
Organopolysulfide-impregnated catalyst and methods of preparation and use
OwnerWilliam J. Tuszynski, Dennis R. Stevensinventors
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Abstract
An organopolysulfide-impregnated catalyst composition usable to hydrotreat petroleum and other hydrocarbon feedstock is described. Also disclosed are processes for making and using the composition.
Claims13
An organopolysulfide-impregnated catalyst composition comprising:
- (a) an inert support impregnated with an organopolysulfide compound in an amount sufficient to meet the stoichiometric requirement for conversion of group VIb and group VIII metal oxides on the support to their sulfide forms;
- and
- (b) one or more group VIb metal oxides on said inert support, the total amount of the group VIb metal oxides being 5 to 50% of the support/metal oxide weight;
- said organopolysulfide being a dialkyl polysulfide of the formula
- R(S).sub.x R.sup.1
- wherein R and R.sup.1 are independently C.sub.1 -C.sub.20 alkyl and x is in the range, 2 to 8, provided that
- (1) R plus R.sup.1 do not exceed C.sub.30,
- (2) if any group VIII metal oxide is on the inert support, then the total amount of group VIb metal oxides plus group VIII metal oxides does not exceed 50% of the support/metal oxide weight, and
- (3) the composition has not been in contact with a reducing agent.
6 more elements
An organosulfide-impregnated catalyst composition comprising:
- (a) an inert support impregnated with an organopolysulfide compound in an amount sufficient to meet the stoichiometric requirement for conversion of group VIb and group VIII metal oxides on the support to their sulfide forms;
- (b) one or more group VIb metal oxides on said inert support, the total amount of the group VIb metal oxides being 5 to 50% of the support metal oxide weight;
- and
- (c) one or more group VIII metal oxides on said inert support, the total amount of the group VIII metal oxides being 2 to 20% of the support/metal oxide weight;
- said organopolysulfide being a dialkyl polysulfide of the formula
- R(S).sub.x R.sup.1 wherein R and R.sup.1 are independently C.sub.1 -C.sub.20 alkyl and x is in the range, 2 to 8, provided that
- (1) R plus R.sup.1 do not exceed C.sub.30,
- (2) if any group VIII metal oxide is on the inert support, then the total amount of group VIb metal oxides plus group VIII metal oxides does not exceed 50% of the support/metal oxide weight, and
- (3) the composition has not been in contact with a reducing agent.
6 more elements
Dependencies are inferred from the claim text.