copper based catalytic converter ppt

seminar report ppt for copper based catalytic converter

Abstract

Exhaust emissions of much concern are Hydrocarbon (HC), Carbon Monoxide (CO) and Nitrogen Oxide (NOx) from the automotive vehicles. Catalytic converter oxidizes harmful CO and HC emission to CO2 and H2O in the exhaust system and thus the emission is controlled. There are several types of problems associated with noble metal based catalytic converter. These factors encourage for the possible application of non-noble metal based material such as copper as a catalyst, which may by proper improvements be able to show the desired activity and can also offer better durability characteristics due to its poison resistant nature. The present work is aimed at using copper as a catalyst for catalytic converter. Wire mesh copper catalytic converter is developed for a volume of 1.54 m3. The experiment is carried out on four stroke single cylinder CI engine. The optimum values of exhaust emissions found at full load are HC (130 ppm), CO (0.07 %). By using copper based catalytic converter it is found that HC is reduced by 38 % and CO by 33 % at full load.The global warming and the air pollution is the big issue in the world1. The more amount of the air pollution is due to emission from an internal combustion engine. The major emissions from IC engines are CO (Carbon monoxide), HC (Hydrocarbon) and NOX (oxides of nitrogen), the reduction of harmful emissions from IC engines can be achieved by using catalytic converter. The catalytic converter oxidizes harmful CO and HC emissions to CO2 and H2O and reduces NOX to elemental nitrogen Nx and oxygen Ox in the exhaust system. Generally catalytic converters use noble metals like Platinum (Pt), Palladium (Pd) and Rhodium (Rh). There are several problems associated with noble metal based catalytic converter. This factor encourages for the possible application of non- noble metal based material such as copper as a catalyst due to its poison resistant nature. By proper improvements desired activity can be achieved by using non-noble metal catalyst. The project is aimed at using copper as a catalyst for catalytic converter. The experiment is carried out on four cylinder SI engine. By using copper based catalytic converter it is found that HC was reduced from 19.2 to15.8 ppm and CO was reduced from0.044 to 0.028 ppm on an average.