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Cermet Materials, Self-Cleaning Cermet Filters, Apparatus and Systems Employing Same

Idaho National Laboratory

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Technology Marketing Summary

INL has developed a method for fabricating a self-cleaning porous cermet material filter and system that may be used in filtering particulate and gaseous pollutants from internal combustion engines, which have intermetallic and ceramic phases. The porous cermet filter may be made from a transition metal aluminide phase and an alumina phase. Filler materials may be added to increase the porosity or tailor the catalytic properties of the cermet material. Also, the cermet material may be reinforced with fibers or screens, plus it may be constructed to electrically conduct current to heat the filter during use. The heating element may be incorporated into the porous cermet filter during manufacture and can be coated with a ceramic material to electrically insulate the heating element. Another option permits an external heating element to be used to heat the cermet filter during use. The cermet may be used in separating NOx and Sox from exhaust streams of internal combustion engines.

Description

INL has developed a method for fabricating a self-cleaning porous cermet material filter and system that may be used in filtering particulate and gaseous pollutants from internal combustion engines, which have intermetallic and ceramic phases. The porous cermet filter may be made from a transition metal aluminide phase and an alumina phase. Filler materials may be added to increase the porosity or tailor the catalytic properties of the cermet material. Also, the cermet material may be reinforced with fibers or screens, plus it may be constructed to electrically conduct current to heat the filter during use. The heating element may be incorporated into the porous cermet filter during manufacture and can be coated with a ceramic material to electrically insulate the heating element. Another option permits an external heating element to be used to heat the cermet filter during use. The cermet may be used in separating NOx and Sox from exhaust streams of internal combustion engines.

Benefits

Non-urea based exhaust after-treatment for NOx and Sox produced from diesel engines.

Applications and Industries

Engine Manufacturing, Environmental inspections.  

More Information

Patent number 6,918,941

Patents and Patent Applications
ID Number
Title and Abstract
Primary Lab
Date
Patent 6,918,941
Patent
6,918,941
Cermet materials, self-cleaning cermet filters, apparatus and systems employing same
A self-cleaning porous cermet material, filter and system utilizing the same may be used in filtering particulate and gaseous pollutants from internal combustion engines having intermetallic and ceramic phases. The porous cermet filter may be made from a transition metal aluminide phase and an alumina phase. Filler materials may be added to increase the porosity or tailor the catalytic properties of the cermet material. Additionally, the cermet material may be reinforced with fibers or screens. The porous filter may also be electrically conductive so that a current may be passed therethrough to heat the filter during use. Further, a heating element may be incorporated into the porous cermet filter during manufacture. This heating element can be coated with a ceramic material to electrically insulate the heating element. An external heating element may also be provided to heat the cermet filter during use.
Idaho National Laboratory 07/19/2005
Issued
Patent 7,468,089
Patent
7,468,089
Cermet materials
A self-cleaning porous cermet material, filter and system utilizing the same may be used in filtering particulate and gaseous pollutants from internal combustion engines having intermetallic and ceramic phases. The porous cermet filter may be made from a transition metal aluminide phase and an alumina phase. Filler materials may be added to increase the porosity or tailor the catalytic properties of the cermet material. Additionally, the cermet material may be reinforced with fibers or screens. The porous filter may also be electrically conductive so that a current may be passed therethrough to heat the filter during use. Further, a heating element may be incorporated into the porous cermet filter during manufacture. This heating element can be coated with a ceramic material to electrically insulate the heating element. An external heating element may also be provided to heat the cermet filter during use.
Idaho National Laboratory 12/23/2008
Issued
Patent 7,470,393
Patent
7,470,393
Methods of producing cermet materials and methods of utilizing same
Methods of fabricating cermet materials and methods of utilizing the same such as in filtering particulate and gaseous pollutants from internal combustion engines having intermetallic and ceramic phases. The cermet material may be made from a transition metal aluminide phase and an alumina phase. The mixture may be pressed to form a green compact body and then heated in a nitrogen-containing atmosphere so as to melt aluminum particles and form the cermet. Filler materials may be added to increase the porosity or tailor the catalytic properties of the cermet material. Additionally, the cermet material may be reinforced with fibers or screens. The cermet material may also be formed so as to pass an electrical current therethrough to heat the material during use.
Idaho National Laboratory 12/30/2008
Issued
Technology Status
Technology IDDevelopment StageAvailabilityPublishedLast Updated
B-060APrototypeAvailable04/27/201112/21/2015

Contact INL About This Technology

To: Ryan Bills<Ryan.Bills@inl.gov>