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US 11,547,988 B2Granted
Catalytic composition and structures made thereof
AssigneesVito NV (Vlaamse Instelling Voor Technologisch Onderzoek NV), Universiteit Antwerpen
InventorsSteven Mullens, Lidia Protasova, Jasper Lefevere
Life of this patent
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Abstract
Methods use a catalytic composition built up from a ceramic material including a catalytic material and a first inorganic binder and a second inorganic binder and a catalytic structure made thereof. Preferably, the structure is made by a colloidal ceramic shaping technique. The structure is used for catalytic or ion exchange applications. The catalytic structures have excellent mechanical, physicochemical and catalytic properties.
Claims17
A method for performing methanol-to-olefins reactions, comprising:
- building a bulk catalytic structure, comprising:
- shaping a composition comprising a ceramic material to obtain a green structure, wherein said ceramic material comprises a catalytic material and a first inorganic binder and a second inorganic binder, the shaping comprising preparing a suspension, slurry or paste of the composition and extruding the suspension, slurry or paste as fibers by three-dimensional fiber deposition to obtain the green structure, wherein the fibers are spaced apart to form a porous layered network;
- the total amount of the first and second inorganic binders in the ceramic material comprising between 10 wt % and 50 wt % by total solid weight of the formed catalytic structure;
- wherein the first inorganic binder is a clay material and the second inorganic binder is selected from:
- colloidal silica, colloidal alumina, colloidal zirconia, colloidal yttrium oxide, or colloidal tin oxide;
- or the first inorganic binder is selected from:
- colloidal silica, colloidal alumina, colloidal zirconia, colloidal yttrium oxide and the second inorganic binder is an inorganic thermohardening compound;
- drying and calcining the green structure to obtain the bulk catalytic structure, wherein the structure is monolithic and comprises first channels having a length extending in a flow direction and second channels having a length extending in a radial direction, wherein the first channels and the second channels are fluidly connected;
- and
- using the bulk catalytic structure as a catalyst in the methanol-to-olefins reactions.
7 more elements
A method for performing catalytic applications, comprising:
- building a bulk catalytic structure, comprising:
- shaping a composition comprising a ceramic material to obtain a green structure, wherein said ceramic material comprises a catalytic material and a first organic binder and a second inorganic binder, the shaping comprising preparing a suspension, slurry or paste of the composition and extruding the suspension, slurry or paste as fibers by three-dimensional fiber deposition to obtain the green structure, wherein the fibers are spaced apart to form a porous layered network;
- the total amount of the first and second inorganic binders in the ceramic material comprising between 10 wt % and 50 wt % by total solid weight of the formed catalytic structure;
- wherein the first inorganic binder is a clay material and the second inorganic binder is selected from:
- colloidal silica, colloidal alumina, colloidal zirconia, colloidal yttrium oxide, or colloidal tin oxide;
- or the first inorganic binder is selected from:
- colloidal silica, colloidal alumina, colloidal zirconia, colloidal yttrium oxide and the second inorganic binder is an inorganic thermohardening compound;
- drying and calcining the green structure to obtain the bulk catalytic structure, wherein the structure is monolithic and comprises first channels having a length extending in a flow direction and second channels having a length extending in a radial direction, wherein the first channels and the second channels are fluidly connected;
- and
- using the bulk catalytic structure for catalytic applications.
7 more elements
A method for performing ion-exchange applications, comprising:
- building a bulk catalytic structure, comprising:
- shaping a composition comprising a ceramic material to obtain a green structure, wherein said ceramic material comprises a catalytic material and a first organic binder and a second inorganic binder, the shaping comprising preparing a suspension, slurry or paste of the composition and extruding the suspension, slurry or paste as fibers by three-dimensional fiber deposition to obtain the green structure, wherein the fibers are spaced apart to form a porous layered network;
- the total amount of the first and second inorganic binders in the ceramic material comprising between 10 wt % and 50 wt % by total solid weight of the formed catalytic structure;
- wherein the first inorganic binder is a clay material and the second inorganic binder is selected from:
- colloidal silica, colloidal alumina, colloidal zirconia, colloidal yttrium oxide, or colloidal tin oxide;
- or the first inorganic binder is selected from:
- colloidal silica, colloidal alumina, colloidal zirconia, colloidal yttrium oxide and the second inorganic binder is an inorganic thermohardening compound;
- drying and calcining the green structure to obtain the bulk catalytic structure, wherein the structure is monolithic and comprises first channels having a length extending in a flow direction and second channels having a length extending in a radial direction, wherein the first channels and the second channels are fluidly connected;
- and
- using the bulk catalytic structure for ion exchange applications.
7 more elements
Dependencies are inferred from the claim text.