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AssigneeIfp Energies Nouvelles
InventorsAlexandra Chaumonnot, Aurelie Coupe, Clement Sanchez, Cedric Boissiere, Michel Martin
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A mesostructured material is described, which consists of at least two elementary spherical particles, each one of said particles comprising a mesostructured matrix based on aluminium oxide, said matrix having a pore diameter ranging between 1.5 and 30 nm, and an aluminium oxide content representing more than 46 wt. % of the mass of said matrix, which has amorphous walls of thickness ranging between 1 and 30 nm, said elementary spherical particles having a diameter D greater than 10 μm and less than or equal to 100 μm (10<D(μm)≦100). Said mesostructured matrix can also contain silicon oxide. Each spherical particle of the mesostructured material can also contain zeolite nanocrystals so as to form a mixed porosity material of both mesostructured and zeolitic nature. The preparation of said material is also described.
A mesostructured material consisting essentially of at least two elementary spherical particles, each of said spherical particles comprising a mesostructured matrix based on aluminum oxide, said matrix having a pore diameter ranging between 1.5 and 30 nm, and an aluminum oxide content representing more than 46 wt. % of the mass of said matrix such that said mesostructured matrix has a Si/Al molar ratio strictly below 1, said matrix having amorphous walls of thickness ranging between 1 and 30 nm, and said elementary spherical particles having a diameter D ranging between 11 and 70 μm.
Dependencies are inferred from the claim text.