Process for catalytic cracking with fine control of the residual coke content on the catalyst after regeneration
US8551326B2 · kind B2 · utility
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10Claims
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Key dates
| Filing date | Mar 15, 2011 |
| Grant date | Oct 8, 2013 |
| Priority date | — |
| Expiry date | Oct 25, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P30/40
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
This invention describes a two-stage regeneration zone that has a regenerated catalyst circuit such as the one that results from the mixing of a partially regenerated catalyst with a residual coke rate of between 0.3 and 0.7% and a totally regenerated catalyst with a coke rate that is less than 0.15%. All things being equal, this double-population regenerated catalyst enables the maximization of the LCO yield.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.