Fluid catalytic cracking system
US5360598A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 19, 1993 |
| Grant date | Nov 1, 1994 |
| Priority date | — |
| Expiry date | May 19, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G11/182
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Disclosed is a fluid catalytic cracking system in which the catalytic cracking reaction takes place in a dilute phase, and the reaction product contains a reduced volume of off gas having a low concentration of SO.sub.x and NO.sub.x. The use of off gas, which is produced during a regeneration step, to strip entrained vapor from spent catalytic cracking catalyst acts to reduce SO.sub.x and NO.sub.x byproducts, and eliminates the need to separately recover and treat the off gas stream from the regenerator portion of the system. The entire process, including the reaction step, the stripping step and the regeneration step, can be performed in a single non-partitioned vessel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.