Currently, the market for corn ethanol is less than 15 billion gallons a year. A mid-level (20% – 30% ethanol) gasoline blend with the octane rating of today’s premium, if widely available, would allow automakers to increase the efficiency of future engines and reduce the cost of compliance with future fuel economy and greenhouse gas regulations. This, in turn, would expand the market for fuel ethanol and potentially lead to an increase in the amount of corn ethanol that can be used in gasoline.
Research Category: Fuels & Emissions
The University of Minnesota (UMN) has demonstrated a dual-fuel hydrous ethanol injection system for use on existing diesel engines that can replace up to 40% diesel fuel use by energy with ethanol. We have also demonstrated that 180 proof hydrous ethanol production can save 10% in plant natural gas usage and reduce net plant water use up to 6%.
The primary motivations for developing a viable hydrous ethanol dual-fuel system are to expand the market for ethanol to diesel-powered applications and to reduce pollutant emissions from diesel engines.
The purpose of this project is to develop a novel and effective system for operating a diesel engine in a dual fuel mode with hydrous ethanol as the primary fuel. The project seeks to prove the hypothesis that using timed injection of denatured 160 proof hydrous ethanol near the intake port as opposed to continuous fumigation in the intake plumbing will allow higher ethanol energy fraction (EEF) levels than are possible with currently marketed systems,