FCC catalyst having alumina derived from crystalline boehmite
US10633596B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 13, 2016 |
| Grant date | Apr 28, 2020 |
| Priority date | — |
| Expiry date | Nov 9, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G2300/205
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A zeolite fluid catalytic cracking catalyst is provided that passivates nickel and vanadium during catalytic cracking. The zeolite fluid catalytic cracking catalyst includes Y-faujasite crystallized in-situ from a metakaolin-containing calcined microsphere. The zeolite fluid catalytic cracking catalyst further includes an alumina-containing matrix obtained by calcination of a dispersible crystalline boehmite and a kaolin contained in the metakaolin-containing calcined microsphere, where the dispersible crystalline boehmite has a crystallite size of less than 500 Å. Also provided are a method of reducing contaminant coke and hydrogen yields and a method of catalytic cracking of heavy hydrocarbon feed stocks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.