PETR 110 |
| At the present time, attention is being paid to research on the effective techniques to control diesel engine exhaust emissions which contribute significantly to the atmospheric deterioration. A promising method to reduce diesel engine gaseous and particulate emissions is to develop ultra-clean diesel fuels. By this approach, substantial reduction in diesel engine exhaust emissions can be achieved. The oxygenation of diesel fuels through the use of oxygenated compounds has been acknowledged as an efficient solution. In this paper, investigation was made about the combustion and emission characteristics of a compression ignition engine fueled with the blends of a diesel fuel and n-butoxy ethanol(NBE). The results demonstrated that combustion of NBE as an additive can significantly lower diesel engine emissions. When diesel fuel is added with 15% to 25% by volume of it, for the tested engine operating under partial load condition, smoke emissions can be lessened by about 45% to 75%, CO can be reduced by the maximum of 50% to 60% and HC can be lowered by 25% to 77%. NOx emissions generally do not change noticeably. With the addition of NBE, engine effective thermal efficiency is improved, engine in-cylinder peak pressure is enhanced and heat release rate increases. But fuel auto-ignition is delayed a little.
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Poster Session
9:00 AM-11:00 AM, Wednesday, August 22, 2007 BCEC -- Exhibit Hall - B2, Poster
Division of Petroleum Chemistry |