Catalyst and method for thermal decomposition of organic substance and method for producing such catalyst
AssigneeSakai Chemical Industry Co., Ltd.
InventorsMitsuru Masatsugu, Toshikatsu Umaba, Itsushi Kashimoto
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Abstract
The invention provides a catalyst for thermal decomposition of an organic substance having the form of spherical granule having a particle diameter of 0.1 to 1.2 mm, a pore volume of 0.1 to 0.3 mL/g, a tap density of 1.05 to 1.4 g/mL, and a wear rate of 2% by weight or less, the catalyst being obtained by mixing and granulating a pulverized product of an inorganic oxide exemplified by titanium oxide with at least one sol selected from a titania sol, a silica sol, an alumina sol, and a zirconia sol to make spherical granules, calcining the spherical granules at a temperature from 400 to 850° C., and sieving the calcined granules.
Claims6
A catalyst for thermal decomposition of an organic substance, consisting of
- a plurality of particles consisting of a composite oxide of tungsten with titanium and a product of a sol,
- wherein the sol is used as a binder when a mixture of the composite oxide and the sol is granulated,
- wherein the particles have the form of a spherical granule having a particle diameter of 0.1 to 1.2 mm, a pore volume of 0.1 to 0.3 mL/g, a tap density of 1.05 to 1.4 g/mL, and a wear rate of 2% by weight or less.
A catalyst for thermal decomposition of an organic substance, consisting of
- a plurality of particles consisting of a composite oxide of tungsten with titanium,
- wherein the particles have the form of a spherical granule having a particle diameter of 0.1 to 1.2 mm, a pore volume of 0.1 to 0.3 mL/g, a tap density of 1.05 to 1.4 g/mL, and a wear rate of 2% by weight or less,
- wherein the particles having the form of a spherical granule are obtained by
- mixing and granulating a pulverized product of the composite oxide of tungsten with titanium with at least one sol selected from a titania sol, a silica sol, an alumina sol, and a zirconia sol to make spherical granules,
- calcining the spherical granules at a temperature of 400-850° C. to make calcined granules, and
- sieving the calcined granules.
A catalyst for thermal decomposition and gasification of an organic substance by heating the organic substance with the catalyst with stirring, consisting of
- a plurality of particles consisting of a composite oxide of tungsten with titanium,
- wherein particles have the form of a spherical granule having a particle diameter of 0.1 to 1.2 mm, a pore volume of 0.1 to 0.3 mL/g, a tap density of 1.05 to 1.4 g/mL, and a wear rate of 2% by weight or less,
- wherein the particles having the form of a spherical granule are obtained by
- mixing and granulating a pulverized product of the composite oxide of tungsten with titanium with at least one sol selected from a titania sol, a silica sol, an alumina sol, and a zirconia sol to make spherical granules,
- calcining the spherical granules at a temperature of 400-850° C. to make calcined granules, and
- sieving the calcined granules.
Dependencies are inferred from the claim text.