Influence of fuel additives on performance of direct-injection Diesel engine and exhaust emissions when operating on shale oil

The total NOx emission from the fully loaded Diesel engine fuelled with the treated shale oil reduces by 29.1% (SO-2E) and 23.0% (Marisol FT). It is important that the lower NOx is obtained due to reducing both harmful pollutants, NO and NO2. The CO emission at rated power increases by 16.3% (SO-2E) and 48.0% (Marisol FT), whereas the smoke opacity of the exhausts increases by 35% and over 2 times, respectively. The effect of the fuel additives on the HC emission seems to be complicated and ambiguous.