Back to results
US 11,376,560 B2Granted
Highly active sorbents and oxygen carriers supported by calcined alumina aerogel for low-temperature carbon capture and chemical-looping combustion of methane
AssigneeUTI Limited Partnership
InventorsDavood Karami, S. Toufigh Bararpour, Nader Mahinpey
Life of this patent
Estimating the term…
Abstract
The invention provides highly reactive nano-sized alumina particle compositions, including alumina compositions with a BET surface areas on the order of 2000 m2/g. Also disclosed are impregnated alumina supports comprising materials that are metal oxides or carbonates. Methods for the synthesis and fabrication of these compositions are provided, along methods for the use of these compositions as sorbents.
Claims21
A method of synthesizing an alumina aerogel, comprising:
- dissolving an alumina alkoxide in a mixed aromatic and alcoholic solvent to form an alumina alkoxide solution;
- adding water to the alumina alkoxide solution, wherein 2-5 moles of H2O are added per mole of alumina alkoxide, to form a liquid aluminum hydroxide alcogel;
- mixing the aluminum hydroxide alcogel for an alcogel aging period to provide an aged alcogel;
- supercriticaly drying the aged alcogel, to provide an alumina aerogel having a BET surface area of at least 1500 m2/g.
1 more element
Dependencies are inferred from the claim text.