Supported core-shell structured ZnO catalyst, and preparation method and use thereof
US12194440B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 3, 2021 |
| Grant date | Jan 14, 2025 |
| Priority date | — |
| Expiry date | Aug 1, 2043 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/52
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention belongs to the technical field of supported catalysts, and discloses a supported core-shell structured ZnO catalyst, and a preparation method and use thereof. With Al2O3 as a support and ZnO as active sites, the catalyst is characteristic of a NiZn@ZnO core-shell structure, which consists of a NiZn alloy core and a ZnO shell The preparation method comprises firstly dissolving Ni(NO3)3·6H2O and Zn(NO3)2·6H2O in deionized water; then impregnating Al2O3 with the solution described above, followed by uniform ultrasonic dispersion and complete drying; and finally the obtained solid is calcinated and reduced to obtain the target catalyst, which exhibits high activity, selectivity and stability. The catalyst can be used for the dehydrogenation of light alkanes to alkenes, especially in dehydrogenation of propane to propylene.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.