Sulfur transfer additive for catalytic cracking of hydrocarbons and a catalytic cracking process of hydrocarbons using the same
US6790343B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Nov 12, 2002 |
| Grant date | Sep 14, 2004 |
| Priority date | — |
| Expiry date | Dec 3, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J23/8896
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention relates to a sulfur transfer additive for catalytic cracking of hydrocarbons and a catalytic cracking process of hydrocarbons using the sulfur transfer additive, said additive is a uniform liquid comprising at least two metal elements selected from the following three classes: a). alkaline earth metals, b). transition metals and P zone metals, and c). rare earth metals, and wherein there are at least two metal elements from the different classes. The present sulfur transfer additive can reduce the SOx content in the regenerator flue gas and the sulfur content in the light oil products at the same time, and has no negative effect on the activity and selectivity of the catalyst in the FCC system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.