Abstract:
A scaleable inter-digitized tine non-thermal plasma reactor element includes at least one pair of inter-digitized tine 12 end connectors 10 connected together defining gas passages 34 between the tines 12. The prepared inter-digitized tine reactor element has a scaleable height, width, and length. Connectors 10 are defined that enable efficient non-thermal reactor element fabrication for widely varying applications having various flow throughput and constituent reduction requirements. An inter-digitized tine 12 reactor element is provided having several zones that are selectively powered so that the effective length of the reactor can be adjusted during operation for optimal efficiency over a range of operating conditions Structural carrier connectors 10 and structural conductor connectors are provided 26. Structural carrier connectors 10 have tines 12 defined in a side to side basis comprising a high-k dielectric layer 24, electrode layer 22, structural dielectric 20, electrode layer 22, and high-k dielectric layer 24. Structural conductor connectors 26 have tines 12 defined in a side basis comprising a high-k dielectric layer 24, structural conductor 22, and high-k dielectric layer 24. The scaleable reactors include double 32, 48, single 54 or null 56 dielectric barrier inter-digitized tine non-thermal plasma reactors. The double 32, 48 dielectric barrier reactor has plasma cells 34 bounded by a dielectric barrier 24 in the plasma direction. The single dielectric barrier 54 reactor has plasma cells bounded by a dielectric barrier 24 on one side and by an electrode 22 on the opposite side, in the plasma direction. The null dielectric barrier reactor 56 has plasma cells 34 bounded by electrodes 22 on each side, in the plasma direction.
Abstract:
An improved nitrogen oxide catalyst for use with catalytic converters (10) comprises a substrate material comprising a catalyst, an adsorption material layer, and an organometallic precursor comprising an organometallic precursor material and a nitrogen oxide adsorber catalyst material. The organometallic precursor reacts with a base metal oxide present in the catalyst and decomposes upon application to the substrate material, leaving a nitrogen oxide adsorption catalyst material in the adsorption material layer.
Abstract:
A scaleable inter-digitized tine non-thermal plasma reactor element includes at least one pair of inter-digitized tine 12 end connectors 10 connected together defining gas passages 34 between the tines 12. The prepared inter-digitized tine reactor element has a scaleable height, width, and length. Connectors 10 are defined that enable efficient non-thermal reactor element fabrication for widely varying applications having various flow throughput and constituent reduction requirements. An inter-digitized tine 12 reactor element is provided having several zones that are selectively powered so that the effective length of the reactor can be adjusted during operation for optimal efficiency over a range of operating conditions Structural carrier connectors 10 and structural conductor connectors are provided 26. Structural carrier connectors 10 have tines 12 defined in a side to side basis comprising a high-k dielectric layer 24, electrode layer 22, structural dielectric 20, electrode layer 22, and high-k dielectric layer 24. Structural conductor connectors 26 have tines 12 defined in a side basis comprising a high-k dielectric layer 24, structural conductor 22, and high-k dielectric layer 24. The scaleable reactors include double 32, 48, single 54 or null 56 dielectric barrier inter-digitized tine non-thermal plasma reactors. The double 32, 48 dielectric barrier reactor has plasma cells 34 bounded by a dielectric barrier 24 in the plasma direction. The single dielectric barrier 54 reactor has plasma cells bounded by a dielectric barrier 24 on one side and by an electrode 22 on the opposite side, in the plasma direction. The null dielectric barrier reactor 56 has plasma cells 34 bounded by electrodes 22 on each side, in the plasma direction.
Abstract:
An exhaust management control method comprising the steps of: immediately following a cold start of an engine (14), adsorbing hydrocarbons from engine exhaust into a hydrocarbon adsorber (30); determining when a catalytic converter (32) catalyst light-off is obtained and thereafter purging the adsorber (30), wherein a first regeneration of the adsorber (30) is obtained; detecting an engine off condition of the vehicle; and injecting air through the adsorber (30) following the detected engine off condition while the adsorber (30) is hot enough that coke deposits thereon are oxidized and thereby removed from the adsorber (30), wherein a second regeneration of the adsorber (30) is achieved.
Abstract:
A poison resistant lean NO x catalyst comprising:
a protective coating of a first catalyst support material including a metal-zirconium phosphate component, coated on a second NO x occluding catalyst material.
Abstract:
A NO x catalyst combination for treating a lean exhaust gas stream comprising an alkaline earth-alumina catalyst and an alkaline earth-zeolite catalyst, arranged on a substrate such that the gas stream first contacts the alkaline earth-alumina catalyst prior to contacting the alkaline earth-zeolite catalyst.