Ceramem Corporation

Atomic Energy of Canada Limited

Peter J Hayward

Robert L Goldsmith

Bruce A Bishop

Frank B Walton

Richard J Higgins

Frederick P Adams

Garry G Haacke

A porous ceramic support for a gas separation membrane formed by sintering a green body containing grains of a refractory ceramic oxide with a high coefficient of thermal expansion and grains of a reactive binder precursor. Upon sintering, the reactive binder precursor reacts with at least one gaseous, liquid or solid reactant to create a reaction bond that binds the refractory ceramic oxide grains. The support configuration can be a tubular, flat plate, hollow fiber, or multiple-passageway monolith structure.

High CTE reaction-bonded ceramic membrane supports

A reaction-bonded &agr;-alumina filter element is provided. The filter element includes a monolith of porous material having multiple passageways extending from one end face to an opposing end face. The monolith is extruded from a mixture containing at least aluminum metal and alumina powders in a proportion such that on sintering the volume change of the monolith is minimized. The filter body can be used as a filter or as a membrane support for crossflow or dead end flow filter elements. A method for making the filter element is also provided.

Reaction bonded alumina filter and membrane support

A filter assembly for an internal combustion engine comprises, in combination, a housing defining an exhaust gas passage having an inlet end and an outlet end and a cavity intermediate the inlet and outlet ends thereof and in serial fluid communication therewith, the cavity defining an electromagnetically resonant coaxial line waveguide, a filter disposed within the cavity for removing particulate products of combustion from exhaust gases passing through the cavity, and a mechanism for producing axisymmetrically distributed, standing electromagnetic waves within the cavity whereby to couple electromagnetic energy in the waves into lossy material in the cavity to produce heat for incinerating the particulate products of combustion accumulated on the filter.

Microwave diesel scrubber assembly

Growing community of inventors

Pinawa, Canada

Peter J Hayward