Aromatic hydrocarbons alkylation and liquid-solid circulating fluidized bed for alkylation
US5789640A · kind A · utility
11Cited by
3References
13Claims
0Family size
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Key dates
| Filing date | Apr 29, 1996 |
| Grant date | Aug 4, 1998 |
| Priority date | — |
| Expiry date | Apr 29, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S585/925
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Disclosed is a process for continuous alkylation of aromatics or their derivatives in the presence of a solid acid catalyst in a liquid-solid circulating fluidized bed system, said system comprising a liquid-solid cocurrent upflow reactor, a sedimentation washing tower for the used catalyst, a liquid-solid cocurrent upflow regenerator, a sedimentation washing tower for the regenerated catalyst, and two vortical liquid-solid separators. By regeneration of the used catalyst, continuous alkylation process is achieved in this system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.