FCC process employing low unit cell size y-zeolites
US5549813A · kind A · utility
18Cited by
10References
3Claims
0Family size
Inventors
Key dates
| Filing date | Mar 7, 1994 |
| Grant date | Aug 27, 1996 |
| Priority date | — |
| Expiry date | Mar 7, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J29/084
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Disclosed is a fluid catalytic cracking process for cracking gas oils and naphtha which provides improved selectivity for C.sub.3 -C.sub.5 olefins employing a catalyst comprising a novel zeolite characterized by a large number of secondary pores, a substantially decreased Lattice Constant of below about 24.19 .ANG., and a substantially decreased Acid Site Density, attained by hydrothermal and acid-treating of an ultrastable Y-zeolite.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.