Fluidized-bed catalytic cracking process for a hydrocarbon feedstock, particularly a feedstock with a high content of basic nitrogen compounds
US5660716A · kind A · utility
4Cited by
5References
20Claims
0Family size
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Key dates
| Filing date | Jan 18, 1995 |
| Grant date | Aug 26, 1997 |
| Priority date | — |
| Expiry date | Jan 18, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G11/05
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A fluidized-bed process for catalytic cracking of a hydrocarbon feedstock where the hydrocarbon feedstock, particularly a feedstock with a high content of basic nitrogen compounds, and a catalyst circulate in the tubular zone co-currently from the top to the bottom, where the catalyst, which is under equilibrium conditions at 150.degree. C., and a pressure of 5 mbar, adsorbs less than 250 micromols, and preferably less than 50 micromols, of pyridine/g, and whose pyridine retention, after heating at 350.degree. C. under vacuum, does not exceed 20%, and preferably not 10%, of the amount adsorbed at 150.degree. C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.