Increasing metal-tolerance of FCC catalyst by sulfur oxide removal
US5371055A · kind A · utility
16Cited by
13References
10Claims
0Family size
Assignee
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Key dates
| Filing date | Feb 18, 1994 |
| Grant date | Dec 6, 1994 |
| Priority date | — |
| Expiry date | Feb 18, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G11/05
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An FCC catalyst system and a process using the catalyst system are disclosed. The catalyst system comprises a metal trap component, such as bastnaesite or barium titanate, and a sulfur oxide acceptor such as a magnesium spinel in addition to a zeolite. The metal trap and sulfur oxide components are preferably in separate particles. The catalyst formulation results in improved activity believed to result from the sulfur oxide acceptor protecting the metal trap component from the harmful effects of sulfur oxides such as the formation of stable metal oxides.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.