Method of hydrocracking paraffins emanating from the Fischer-Tropsch process using catalysts based on H-Y zeolite
US5345019A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 21, 1992 |
| Grant date | Sep 6, 1994 |
| Priority date | — |
| Expiry date | May 21, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S585/946
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method of hydrocracking charges emanating from the Fischer-Tropsch process, in which: PA1 (a) hydrogen is reacted with the charge in contact with a catalyst 1 in a first reaction zone, the said catalyst 1 comprising at least one alumina-based matrix and at least one hydro-dehydrogenation component; PA1 (b) the effluent from the first reaction zone is put into contact with a catalyst 2 in a second reaction zone, the said catalyst 2 comprising: PA2 20 to 97% by weight of at least one matrix; PA2 3 to 80% by weight of at least one Y zeolite in hydrogen form, PA1 the said zeolite being characterized by an SiO.sub.2 /Al.sub.2 O.sub.3 molar ratio of over 4.5:1, a sodium content of less than 1% by weight determined on a zeolite calcined at 1100.degree. C.; an a.sub.o crystal parameter of the elemental mesh of less than 24.70.times.10.sup.-10 m; and a specific surface area determined by the BET method of over 400 m.sup.2.g.sup.-1 ; PA1 and at least one hydro-dehydrogenation component.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.