Journal article

Formulating gasoline surrogate for emulating octane blending properties with ethanol

Hao Yuan, Zhongyuan Chen, Zhenbiao Zhou, Yi Yang, Michael J Brear, James E Anderson

Fuel | ELSEVIER SCI LTD | Published : 2020

Abstract

This work develops a surrogate fuel that reproduces the octane blending of a market gasoline with ethanol. It first extends our previous investigation that reported strong, non-linear blending for ethanol/paraffin and ethanol/aromatic mixtures (Foong et al., Fuel 2014 p. 727) to consider mixtures of ethanol/cycloparaffin, ethanol/olefin, and hydrocarbons from different groups. On the molar basis, ethanol blends synergistically with cyclohexane and 1-hexene, whereas toluene blends antagonistically with ethanol and all hydrocarbons studied. Various alternative surrogate formulations are then considered given the observed inadequacy of toluene reference fuels (TRFs, mixtures of iso-octane, n-h..

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