Laboratory investigation of the effect of increasing of dimethyl carbonate on the efficiency of internal combustion engine gasoline
Subject Areas :ali akbar miranbeigi 1 , Nader Gholami 2 * , Mohammad Mahdi Eskandari 3
1 - Oil Refining Research Division, Research Institute of Petroleum Industry, Tehran, Iran
2 -
3 - Research Institute of Petroleum Industry
Keywords: Dimethyl carbonate, Air pollution, Fuel additives, Octane number improvers, Hydrocarbon pollutants.,
Abstract :
Dimethyl carbonate (DMC) has excellent properties for mixing with gasoline. In this research, for the first time, the effect of dimethyl carbonate on gasoline as an additive was studied and investigated. In this regard, the effect of combustion of base gasoline (100%) and mixing ratios of 3, 6 and 9 volume percent on the engine performance and pollution of a four-cylinder engine was investigated. Exhaust gases were measured using a special gas analyzer. The obtained results showed that mixing DMC with gasoline did not have a negative effect on the quality indicators of motor gasoline. The octane number of base gasoline, engine power, and torque increased, and fuel consumption reduced. In addition, CO, HC, NOX pollutants, and suspended particles reduced. Carbon monoxide decreased by about 29 wt.%. The amount of hydrocarbons and nitrogen compounds showed a significant decrease of about 50 and 73 wt.%, respectively, at different engine speeds.
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