Process for the cracking of feedstocks containing high levels of nitrogen
US4880521A · kind A · utility
14Cited by
16References
29Claims
0Family size
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Key dates
| Filing date | Feb 17, 1989 |
| Grant date | Nov 14, 1989 |
| Priority date | — |
| Expiry date | Feb 17, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G11/05
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Hydrocarbon feedstocks containing relatively high levels of nitrogen contaminants are converted by catalytic cracking to products of lower average molecular weight by contacting the feedstock under cracking conditions with a cracking catalyst having a surface area of at least 150 m.sup.2 /gm and comprising greater than about 25 weight percent of a Y zeolite dispersed in a matrix containing a synthetic silica-alumina component in which the weight ratio of silica-to-alumina is preferably equal to or greater than about 0.10.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.