Cracking with short contact time and high temperatures
US4419221A · kind A · utility
93Cited by
13References
6Claims
0Family size
Assignee
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Key dates
| Filing date | Oct 27, 1981 |
| Grant date | Dec 6, 1983 |
| Priority date | — |
| Expiry date | Oct 27, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G11/18
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method and apparatus for catalytic conversion of hydrocarbon feedstocks and regeneration of coked catalyst resulting from the hydrocarbon conversion reaction in which the catalyst regeneration is carried out in a combination of dense phase fluidized bed, an entrained phase regeneration zone and a second dense phase fluidized bed and the hydrocarbon conversion reaction is carried out in a high velocity short contact time dilute phase reaction zone wherein the reaction time and temperature and the regenerator temperature may be separately varied to provide and maintain optimum conversion conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.