Layered composition and processes for preparing and using the composition
US7638459B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 25, 2005 |
| Grant date | Dec 29, 2009 |
| Priority date | — |
| Expiry date | Aug 9, 2025 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G47/14
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A layered composition which can be used in various processes has been developed. The composition comprises an inner core such as a cordierite core and an outer layer comprising a refractory inorganic oxide, a fibrous component and an inorganic binder. The refractory inorganic oxide layer can be alumina, zirconia, titania, etc. while the fibrous component can be titania fibers, silica fibers, carbon fibers, etc. The inorganic oxide binder can be alumina, silica, zirconia, etc. The layer can also contain catalytic metals such as gold and platinum plus other modifiers. The layered composition is prepared by coating the inner core with a slurry comprising the refractory inorganic oxide, fibrous component, an inorganic binder precursor and an organic binding agent such as polyvinyl alcohol. The composition can be used in various hydrocarbon conversion processes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.