Effects of Alcohol Composition on Gasohol Vehicle Emissions 962094

The effects of alcohol composition on gasohol vehicle regulated emissions and fuel consumption were investigated in PETROBRAS tests. Four formulations of gasohols were prepared with the same base gasoline and 22% by volume of alcohol. Two formulations with ethanol from carbon hydrates fermentation; one using corn and the other sugar cane feedstocks. The other two using synthetic alcohol one from coal and the other from natural gas as feedstocks to the synthetic plants. Four Brazilian gasohol vehicles were tested over a Brazilian emission cycle.
Changing alcohol composition will alter gasohol CO emissions compared with ethanol from sugar cane used as reference gasohol. The effects of ethanol composition on CO emissions have different responses for a particular vehicle model. HC, NOx, Aldehydes, CO2 and fuel consumption did not vary significantly. Additional investigations were designed to study corrosion effects and the results suggest that the alcohol from natural gas and from coal are potentialy more corrosive. Finally the paper discusses the role of alcohol addition to gasoline.


Subscribers can view annotate, and download all of SAE's content. Learn More »

Members save up to 16% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:

An Experimental Investigation on 1.4L MPFI Gasoline Engine to Study its Performance, Emission and Compatibility with E10 Fuel


View Details


Performance and Emission Characterization of 1.2L MPI Engine with Multiple Fuels (E10, LPG and CNG)


View Details


Ethanol-Blended Fuel as a CO Reduction Strategy at High Altitude


View Details