A study on catalytic converter for emission reduction of motorcycle engine

Abstract

This paper presents a study on a catalytic converter for emission reduction of motorcycle engine powered by a carburetor. The typical emissions reductions of motorcycle are analyzed using steady-state velocities, temperature measurements, and comparing exhaust emissions before and after using the catalytic converter. The catalytic converter is developed using waste fertilizers to synthesize nickel and then coating the surface of the catalyst for investigation. In experiments, the catalyst properties and catalyst activity are analyzed under different conditions. On the basis of the results presented in this research, characterization and catalytic activity measurements of monolithic Ni/cordierite catalysts by a wet-impregnated method, it can be seen that: the results of the catalytic activity are very promissory. The monoliths catalysts showed very good activity in propylene combustion as well as the CO oxidation reaction to combustion products (CO2 and H2O) from 5 to 12 %wt Ni loading in monoliths at 400oC. In addition, the test results on the motorcycle engine showed that the HC and CO components tend to decrease and show the effectiveness of the catalytic converter when applied to the engine. If the lambda is close to the narrow window, the catalyst will be able to promote higher activity and reduce the amount of toxic exhaust gas more.