The study product and estimate performance of three way catalyst on automobile engine

Abstract

    This paper study to product a Three Way Catalytic (TWC) using on Toyota Vios 1.5 engine,TWC is prodcucted by spin coating method, TWC of dimension was 100x250 respectively, theintensity of cell was 400 cell/inch2, amount of Al, Ce and Zr washcoat materials are 210, 20.4and 18.6 respectively, Pt and Rh noble metals of 2,1 gram (Pt:Rh=5:1) were used. Thestructure of TWC is chacacteristic by XRD, XPS và SEM, catalytic perfoamnce was carried onAPA100 bench using Toyota Vios 1.5 engine. The results showed that, the XRD peaks of Al2O3,CeO2, ZrO2 were determineded, the peak of Pt and Rh were also showed by the XPS method.The experiment results on Toyota Vios 1.5 engine showed that, the highest performance of CO,HC and NOx was 95,7%, 82,1% và 99,1%, when throttle and speed increased from 15% to100%, CO, HC and NOx conversion perfomance trendly decreased. At  <1, the CO and HCperformance decreased strongly.