Increasing metal-tolerance of FCC catalyst by sulfur oxide removal
US5324416A · kind A · utility
11Cited by
9References
8Claims
0Family size
Assignee
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Key dates
| Filing date | Jun 27, 1991 |
| Grant date | Jun 28, 1994 |
| Priority date | — |
| Expiry date | Jun 27, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J29/084
- WIPO fieldBasic materials chemistry
- 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.