Emission from the combustion processes can cause adverse effect to the environment. The formation of pollutants such as oxides
of nitrogen (NOx), carbon monoxide (CO), carbon dioxide (CO2) and oxides of sulphur (SOx) are hazardous and harmful to the
ecosystem. Due to these pollutants and also depletion of fossil fuel, several steps should be taken in order to mitigate this
problem. Biofuel is known as the potential replacement for fossil fuel. Envo Diesel is one form of biofuel that can be used on
diesel engines and burner systems without any modification. It is produced by direct blending of palm oil with diesel fuel. This
study was carried out to determine the performance of palm oil derived biofuel (Envo Diesel) on burner in terms of emission
when applying staged air combustion. Emissions released from combustion chamber have been measured when applying the
secondary staged air. The main purpose of this study was to determine the optimal blend for best performance compared to diesel
when applying secondary air. Reductions of 67% and 54% can be achieved for NOx and SO2 respectively. Smaller reduction of
around 21% was achieved for CO emission.