Relationship between Backpressure and Light-Off Characteristic of the Three-Way Catalyst

Xiao Kun He; Jin Hu; Yong Bo Ji; Wen Yong Yang; Jia Lin Sun

doi:10.4028/www.scientific.net/AMR.177.682

Paper Titles

Holding Strength of Bond to Diamond Grain within Vitrified Abrasives
p.657

Effect of how PDC Macro Interface Structure on the Performance of the Resistance to Impact
p.660

Semi-Quantitative Characterization of Residual Stresses of Polycrystalline Diamond Compacts
p.665

Prestressed Ceramics Lateral Confined by Aluminum Alloy
p.669

Preparation and Magnetic Properties of Carbon Encapsulated Fe-Cu Alloy Nanoparticles
p.673

Structure and Properties of UV-Curable Waterborne Polyurethane/Acrylate Composite Resin
p.677

Relationship between Backpressure and Light-Off Characteristic of the Three-Way Catalyst
p.682

Atomic Oxygen Effects of Polyimide/Silica Hybrid Films in Low Earth Orbit Environment
p.686

Repairing Technology of Aluminum Alloy with Compound Metallic-Membrane Plating
p.690

HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 177Relationship between Backpressure and Light-Off...

Relationship between Backpressure and Light-Off Characteristic of the Three-Way Catalyst

Abstract:

The three-way catalyst with different cell shape substrates was prepared by the different washcoat loadings. Its catalyst’s light-off characteristics were investigated by the simulating calculation and the engine bench experiment. The experimental results showed that, heat transfer coefficient (Hs) couldn’t be improved by the increase of coating rate, in contrast heat transfer coefficient (Hs) and the catalytic conversion decreased when the coating rate was more than 45%. Therefore, it had some negative effects on the light-off characteristics and air-fuel ratio property. The calculation analyses and the engine bench experiment also proved that the best coating rate was 45% for the substrate of 400cpsi.