Process for the catalytic cracking of feedstocks containing high levels of nitrogen
US4810369A · kind A · utility
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13References
20Claims
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Key dates
| Filing date | May 7, 1987 |
| Grant date | Mar 7, 1989 |
| Priority date | — |
| Expiry date | May 7, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2229/42
- WIPO fieldChemical engineering
- 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 rare earth exchanged Y zeolite dispersed in a matrix containing a synthetic silica-alumina component in which the weight ratio of silica-to-alumina is equal to or greater than about 0.5.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.