Reactivation of deactivated hydrocarbon conversion catalyst by ultrasonic insonation
US4086184A · kind A · utility
8Cited by
11References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 2, 1973 |
| Grant date | Apr 25, 1978 |
| Priority date | — |
| Expiry date | May 2, 1993 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G47/16
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Catalysts used in hydrocarbon conversion operations are subject to "permanent" deactivation after successive use and regeneration. These permanently deactivated catalysts can be reactivated by immersing them in a liquid medium and subjecting the liquid medium to ultrasonic energy. This reactivation is especially suitable to catalyst mixtures, comprising (1) an amorphous base and/or (2) a crystalline aluminosilicate component and/or (3) a transition metal hydrogenation component, particularly those employed in hydrocracking operations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.