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US 11,701,643 B2Granted
Dehydrogenation catalysts and methods for using them
AssigneeClariant International Ltd.
InventorsRong Xing, Vladimir Fridman
Life of this patent
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Abstract
The present disclosure relates to gallium-based dehydrogenation catalysts that further include additional metal components, and to methods for dehydrogenating hydrocarbons using such catalysts. One aspect of the disclosure provides a calcined dehydrogenation catalyst that includes a gallium species, a cerium species, a platinum promoter, and a silica-alumina support. Optionally, the composition can include a promoter selected from the alkali metals and alkaline earth metals.
Claims20
A dehydrogenation catalyst composition comprising
- Ga, present in the composition in an amount within a range of 2 wt. % to 20 wt. %, calculated as elemental metal on a calcined basis;
- Ce, present in the composition in an amount within a range of 0.5 wt. % to 10 wt. %, calculated as elemental metal on a calcined basis;
- Pt, present in the composition in an amount within a range of 1 ppm to 500 ppm, calculated as elemental metal on a calcined basis;
- a promoter M2 selected from the alkali metals, the alkaline earth metals, and any mixture thereof, present in the composition in an amount of up to 7.5 wt. %, calculated as elemental metal on a calcined basis;
- and
- a silica-alumina support S1, present in the composition in an amount within a range of 50 wt. % to 97.5 wt. % of the composition, calculated as oxide on a calcined basis, silica being present in S1 in an amount within a range of 5 wt. % to 30 wt. % of the mass of S1, calculated as SiO2 on a calcined basis,
- wherein amounts of Ga, Ce, Pt, and promoter M2, are provided on the basis of the amount of the support S1 being 100 wt %.
4 more elements
Dependencies are inferred from the claim text.