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US 8,298,982 B2Granted
Ultradispersed catalyst compositions and methods of preparation
AssigneeUniversity of Calgary
InventorsPedro Pereira-Almao, Vieman Alberto Ali-Marcano, Francisco Lopez-Linares, Alejandro Vasquez
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Abstract
The present invention relates generally to ultradispersed catalyst compositions and methods for preparing such catalysts. In particular, the invention provides catalyst composition of the general formula: BxMyS[(1.1 to 4.6)y+(0.5 to 4)x] where B is a group VIIIB non-noble metal and M is a group VI B metal and 0.05≦y/x≦15.
Claims22
A method of preparing a tri-metallic ultradispersed catalyst composition comprising the steps of:
- preparing a first precursor solution containing a metal salt of a Group VI B metal;
- preparing second and third precursor solutions containing metal salts of a Group VI B and Group VIII B, respectively;
- admixing the first, second and third precursor solutions with a hydrocarbon feedstock to form separate microemulsions;
- admixing the first, second and third microemulsions to form a tri-metallic microemulsion mixture;
- and,
- subjecting the tri-metallic microemulsion to a decomposition process to form an ultradispersed catalyst composition.
3 more elements
A method of preparing a tri-metallic ultradispersed catalyst composition comprising the steps of:
- preparing a first precursor solution containing a metal salt of a Group VI B metal;
- preparing a second precursor solution containing metal salts of the Group VI B and Group VIII B;
- admixing the first and second precursor solutions with a hydrocarbon feedstock to form separate microemulsions;
- admixing the first and second microemulsions to form a tri-metallic microemulsion mixture;
- and,
- subjecting the tri-metallic microemulsion mixture to a decomposition process to form an ultradispersed catalyst composition.
3 more elements
Dependencies are inferred from the claim text.