Cracking catalyst and a preparation process for the same
US7776775B2 · kind B2 · utility
3Cited by
15References
15Claims
0Family size
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Key dates
| Filing date | Mar 31, 2006 |
| Grant date | Aug 17, 2010 |
| Priority date | — |
| Expiry date | Mar 31, 2026 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G2400/02
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention provides a cracking catalyst, containing a rare-earth Y-zeolite and a support, which is characterized in that the rare-earth content in crystal lattice of the rare-earth Y-zeolite is 4-15 wt % of RE2O3; the original unit cell size is 2.440-2.465 nm; the equilibrium unit cell size of the catalyst after 100% steam-aging treatment at 800° C. for 17 hours is larger than 2.435 nm; the rare-earth atom content in the support is 1.0-8.0 wt % of the support. The present invention also relates to a preparation process for the same catalyst.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.