Substrate and a method of manufacturing a substrate
AssigneeIP2Ipo Innovations Limited
InventorsBenjamin Francis Knatchbull Kingsbury, Kang Li, Zhentao Wu
Life of this patent
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Abstract
A catalytic convertor comprising a substrate body (100) arranged within the catalytic convertor such that a principal flow of fluid through the catalytic convertor flows along a surface (101) of the substrate body, wherein said surface (101) has a plurality of openings (210) to micro-channels that extend away from said surface (101); and at least a portion of the surface (101) of the substrate body (100) comprises a catalytically active material, wherein the substrate body (100) is in the form of: a pellet; a sheet; solid elongate bodies; solid rods; a solid body having a plurality of bores; a non-tubular elongate body; a non-hollow body; a sheet curved in the form or a spiral; or a combination thereof.
Claims27
A method of manufacturing a substrate having a plurality of micro-channels formed therein, the method comprising:
- providing a suspension containing a substrate material in particulate form and a polymer in a first solvent;
- introducing the suspension into a mould or extruding the suspension;
- contacting the suspension with a second solvent to remove at least some of the first solvent from the suspension and thereby form a green body having micro-channels from said substrate material and said polymer;
- and
- removing at least a portion of a surface layer of said green body to uncover a plurality of micro-channel openings in the outer surface of the green body, the openings having diameters falling in the range 5 μm to 200 μm;
- and
- sintering the green body at a temperature from 1200 to 1600° C.
A method of manufacturing a substrate having a plurality of micro-channels formed therein, the method comprising:
- providing a suspension containing a substrate material in particulate form and a polymer in a first solvent;
- introducing the suspension into a mould or extruding the suspension;
- contacting the suspension with a second solvent to remove at least some of the first solvent from the suspension and thereby form a green body having micro-channels from said substrate material and said polymer;
- sintering the green body at a temperature from 1200 to 1600° C. to form a sintered body;
- and
- removing at least a portion of a surface layer of said sintered body to uncover a plurality of micro-channel openings in the outer surface of the sintered body, the openings having diameters falling in the range 5 μm to 200 μm.
A method of manufacturing a catalytic convertor substrate having a plurality of micro-channels formed therein, the method comprising:
- providing a suspension containing a substrate material in particulate form and a polymer in a first solvent;
- introducing the suspension into a mould or extruding the suspension;
- contacting the suspension with a second solvent to remove at least some of the first solvent from the suspension and thereby form a green body having micro-channels from said substrate material and said polymer;
- removing at least a portion of a surface layer of said green body to uncover a plurality of micro-channel openings in the outer surface of the green body, the openings having diameters falling in the range 5 μm to 200 μm;
- and
- sintering the green body at a temperature from 1200 to 1600° C.
A method of manufacturing a catalytic convertor substrate having a plurality of micro-channels formed therein, the method comprising:
- providing a suspension containing a substrate material in particulate form and a polymer in a first solvent;
- introducing the suspension into a mould or extruding the suspension;
- contacting the suspension with a second solvent to remove at least some of the first solvent from the suspension and thereby form a green body having micro-channels from said substrate material and said polymer;
- sintering the green body at a temperature from 1200 to 1600° C. to form a sintered body;
- and
- removing at least a portion of a surface layer of said sintered body to uncover a plurality of micro-channel openings in the outer surface of the sintered body, the openings having diameters falling in the range 5 μm to 200 μm.
Dependencies are inferred from the claim text.