Fluid catalytic cracking with catalyst system containing modified beta zeolite additive
US11142703B1 · kind B1 · utility
Assignees
Inventors
Key dates
| Filing date | Aug 5, 2020 |
| Grant date | Oct 12, 2021 |
| Priority date | — |
| Expiry date | Aug 5, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10L2270/023
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Methods for cracking a hydrocarbon oil include contacting the hydrocarbon oil with a catalyst system in a fluidized catalytic cracking unit to produce light olefins and gasoline fuel. The catalyst system includes a FCC base catalyst and a catalyst additive. The FCC base catalyst includes a Y-zeolite. The catalyst additive includes a framework-substituted *BEA-type zeolite. The framework-substituted *BEA-type zeolite has a modified *BEA framework. The modified *BEA framework is a *BEA aluminosilicate framework modified by substituting a portion of framework aluminum atoms of the *BEA aluminosilicate framework with beta-zeolite Al-substitution atoms selected from titanium atoms, zirconium atoms, hafnium atoms, and combinations thereof. The FCC base catalyst may include a framework-substituted ultra-stable Y (USY)-zeolite as the Y-zeolite. The framework-substituted USY-zeolite has USY aluminosilicate framework modified by substituting a portion of framework aluminum atoms with titanium atoms, zirconium atoms, hafnium atoms, or combinations thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.