Reduction of HC and CO in the Exhaust Gas of Minibus Vehicles by Natural Zeolite

Air pollution due to burning fossil fuels is still an environmental problem today. This paper presents the research results; method of reducing HC and CO in exhaust gas minibus vehicles. uses a pollutant trap (PGT) device, which functions as adsorption medium, natural zeolite absorbent material. The PGT device designed such way that can adsorb gases flowing it. consists hollow body supporting equipment arranged cavity filled with granules be passed through vehicle gases. laminar turbulent flow types, while grains used are 2.54 mm 1.27 mm. PGT-zeolite installed at end vehicle, so polluting absorbed by zeolite. capability was measured Automotive-Emission-Analyzer, type NHA-406EN. Turbulence capable ≈ 40% 42% respectively for grain size Meanwhile, able reduce 36% gas, results this study indicate has very good ability Therefore, it necessary continue on feasibility using zeolite, absorber other types