¹Suheni, ²Rudy Sunoko, ³Amin Setyo Leksono, ⁴Slamet Wahyudi

¹Student of Environmental Science Doctoral Program, Postgraduate School, Universitas Brawijaya

²Lecture of Faculty of Engineering Universitas Brawijaya

³Lectur of Faculty of Mathematics and Natural Sciences Universitas Brawijaya

⁴Lecturer of Faculty of Engineering

Technological developments have an impact on increasing the number of motorized vehicles such as motorcycles, cars, and other modes of transportation. This causes air pollution impacts such as gas emissions from fossil fuels. Substances from hazardous exhaust gases consist of carbon monoxide (CO), carbon dioxide (CO2), nitrogen oxides (NO or NOx), and hydrocarbons (HC). Therefore, the purpose of this research is to design a catalytic converter through a mixture of several metals obtained from various wastes in Small and Medium Enterprises. A mixture of copper, brass, aluminium and zinc to be created as a muffler or exhaust on the test vehicle, namely the 2005 Car. The observed exhaust emissions are CO & HC using a Gas Analyzer. Measurements were observed at vehicle rotation of 1000 rpm, 2000 rpm, 3000 rpm, 4000 rpm and 5000 rpm. The results showed that the highest proportion of reduced CO levels was the use of a catalyst at 2000 rpm engine speed, which was 5.23 with Pertamax fuel, while petrolite fuel using a catalyst with 2000 rpm engine speed was 5.5. The highest percentage reduction in HC levels was when using a catalyst with engine speed of 1000 rpm of 645% with Pertamax fuel, while for pertalite fuel using a catalyst with engine speed of 1000 rpm was 705.5%

Copper, Aluminum, Zinc, Catalytic Converter, Gas Analyzer

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VOLUME 06 ISSUE 01 JANUARY 2023

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