Catalyst for light olefins and LPG in fludized catalytic units
US9365779B2 · kind B2 · utility
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35References
79Claims
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Key dates
| Filing date | Nov 3, 2005 |
| Grant date | Jun 14, 2016 |
| Priority date | — |
| Expiry date | Dec 27, 2027 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G2400/28
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A catalyst composition comprising at least about 10% by weight pentasil, at least about 12% by weight Y-type zeolite at a pentasil to Y zeolite ratio of at least 0.25, and wherein the pentasil and Y zeolite comprise at least about thirty-five percent of the catalyst have been shown to optimize light olefin yields and LPG from FCC processes. Embodiments having matrix surface areas greater than 25 m2/g, phosphorous and rare earth are preferred. The compositions of this invention are particularly useful in typical fluid catalytic cracking (FCC) processes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.