Other higher alcohols

Abstract

Recently, C5 and higher alcohols are considered as alternative fuels because they emit less greenhouse gases and harmful pollutants. Of C5 alcohols, n-pentanol and isopentanol are mainly studied as a blending component with diesel fuel. Therefore, the physico-chemical properties, fundamental combustion studies, and utilization of pentanol in conventional and advanced CI engine are discussed. Among C6 alcohols, n-hexanol and cyclohexanol were mainly investigated for cosurfactants and blending agents. Octanol and 2-ethyl-hexanol as C8 alcohols are recently considered as a promising biofuel to conventional and advanced diesel engine. The discussion of physico-chemical properties, basic combustion studies, and utliization of hexanol in conventional and advanced CI engine are also included in this chapter. As higher than C8 alcohols, n-decanol, n-dodecanol, and phytol are investigated as blends with diesel for promising alternative biofuel to diesel engine. Finally, comparison of higher alcohols in performance, combustion, and emission characteristics in CI engines is summarized.