Reforming using a bound halided zeolite catalyst
US6190539A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 24, 1998 |
| Grant date | Feb 20, 2001 |
| Priority date | — |
| Expiry date | Nov 24, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G35/095
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A catalytic reforming process comprising the catalytic conversion of hydrocarbons to aromatics, said process comprising treating a halided zeolite catalyst (hiz-cat) containing a Group VIII metal at commercial startup conditions and then reforming hydrocarbons, wherein said catalyst is prepared by washing a bound zeolite catalyst base or a bound zeolite catalyst before halide addition. A preferred hiz-cat is a non-acidic Pt K L-zeolite catalyst prepared by a process that includes the steps of preparing a calcined silica-bound K L-zeolite catalyst base; washing said bound zeolite catalyst base with a liquid comprising water; and incorporating Pt and halogen-containing compound(s) comprising chlorine and fluorine into said washed catalyst base. Ammonium chloride and ammonium fluoride are preferred halide sources.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.