Multi-zone moving-bed reaction device with an addition of regenerated or fresh catalyst in each zone
US7611678B2 · kind B2 · utility
4Cited by
6References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 9, 2005 |
| Grant date | Nov 3, 2009 |
| Priority date | — |
| Expiry date | Apr 6, 2027 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G2400/04
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A reaction device includes staged zones making it possible to implement strongly endothermic or exothermic reactions. The device reduces the differences in catalytic activity between these zones using an addition of fresh or regenerated catalyst at the inlet of each reaction zone and provides an integrated heat exchanger. A process of chemical conversion employs the device for gas-phase and/or liquid-phase exothermic or endothermic reactions, and in particular for the oligomerization reaction of C2 to C12 fractions for the purpose of producing a diesel fraction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.