Hydrocracking catalyst
US4499202A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 29, 1982 |
| Grant date | Feb 12, 1985 |
| Priority date | — |
| Expiry date | Jun 29, 2002 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J35/633
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention relates to a particular method for the preparation of a hydrocracking catalyst, using a high iron content bauxite as a basis. This bauxite is ground and screened to a specific size and mixed with three types of additives: a promoter additive of the P, Mo, Co, Ni, W type. A hardener additive of the phosphoric acid type, ammonium phosphate. And a lubricant and pore-generating additive of the polyvinyl alcohol, polyethylene-glycol, starch type. The particularity consists in that the three additives are added simultaneously during the extrusion of the sample. That way, a particular surface composition is obtained which allows for the activity of the catalyst. Extruded products are obtained in sizes of 1/8, 1/16, and 1/32" and submitted to drying and calcination programs for their activation. The obtained catalyst offers a good mechanical strength, a high content in macropores and a high activity, specifically for the hydrocracking of heavy Venezuelan crudes or residues.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.