Alkane dehydrogenation catalyst
AssigneeSabic Global Technologies B.V.
InventorsBiju Maippan Devassy, Vinod Sankaran Nair, Velayutham Saravanan, Nigit Jose Meleppuram, Ritesh Nandy, Mahabala PS, Vishal Patrick
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Abstract
Methods of preparing alkane dehydrogenation catalysts that include 10 wt. % to 40 wt. % chromium(III) oxide (Cr2O3), 0.1 wt. % to 5 wt. % alkali metal oxide, and 60 wt. % to 90 wt. % alumina Al2O3 are described. A method can include mixing a solid aluminum hydroxide source with a water insoluble chromium(III) oxide source, an alkali metal oxide source, and an aqueous non-metal acid to produce a catalyst precursor. The catalyst precursor can be dried and calcined at 700° C. to 1000° C. to produce the catalysts of the present invention.
Claims15
A method of preparing an alkane dehydrogenation catalyst, the method comprising:
- (a) extruding and/or tableting a formable mixture comprising a solid aluminum hydroxide, a water insoluble chromium(III) oxide source, an alkali metal oxide source, and a non-metal acid, to produce a catalyst precursor;
- (b) drying the catalyst precursor;
- and
- (c) calcining the dried catalyst precursor at a temperature of 700° C. to 1000° C. to produce an alkane dehydrogenation catalyst comprising 10 wt. % to 40 wt. % chromium(III) oxide (Cr2O3), 0.1 wt. % to 5 wt. % alkali metal oxide, and 60 wt. % to 90 wt. % alumina (Al2O3).
Dependencies are inferred from the claim text.