Fluid catalytic cracking feedstock injection process
US5449451A · kind A · utility
0Cited by
9References
1Claims
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Assignee
Inventors
Key dates
| Filing date | Sep 20, 1993 |
| Grant date | Sep 12, 1995 |
| Priority date | — |
| Expiry date | Sep 20, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J8/0015
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The invention is a method for mixing feedstock with fluidized catalyst in a fluid catalytic cracking (FCC) riser reactor. A dispersed catalyst suspension is passed upwardly at a velocity of 0.5 to 4 ft/sec. Atomized feedstock is injected downwardly at a velocity of -30 to -1000 ft./sec to produce a turbulently mixed reaction suspension. Vaporizing feedstock rapidly accelerates the reaction suspension in approximately plug flow. The slip factor between catalyst and hydrocarbon in the reaction suspension defining the departure from ideal plug flow is thereby reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.