Viscosities of binary mixtures containing 2-butanol + hydrocarbons (2,2,4-trimethylpentane or 1,2,4-trimethylbenzene) at high pressures for the implementation of second generation biofuels

Viscosities and densities of different alcohols (1-propanol, 2-propanol, 1-pentanol and 2-pentanol) at high pressures

“…The relative expanded uncertainty of the viscosity measurements is estimated better than 1.5% for a cover factor k = 2 (0.95 level of confidence). The performance of this equipment was proven in previous papers [1,3,4].…”

“…The three experimental techniques used in this work were extensively described in previous papers [1][2][3][4][5], nevertheless, a brief explanation of the main features of them is presented in the next sections.…”

“…High pressure viscosities of 1-butanol and 2-butanol were already provided for this purpose in former works [3,4] using a vibrating wire viscometer technique. The aim of the present work is to extend this knowledge, reporting new measurements for other alcohols such as 1-propanol, 2-propanol, 1-pentanol and 2pentanol, from 0.1 MPa to 100 MPa and four isotherms from 293.15 K to 353.15 K for both propanols and six isotherms from 293.15 K to 373.15 K for both pentanols.…”

Correlation of Viscosities for Biofuels Mixtures

“…For renewable fuels generation, an alternative is the formulation of gasolines that include oxygenated compounds such as alcohols (methanol, ethanol, propanol and butanol) and ethers (methyl-tert-butyl ether, MTBE and ethyl-tert-butyl ether, ETBE) (Aguilar, 2010;Villamañan, 1979;Segovia, 1997;Chamorro, 1998;Alonso, 2002). The new blends of hydrocarbons and 1-butanol or 2-butanol are known as second generation biofuels (Zambrano et al, 2016;Zambrano et al, 2018;Galloni et al, 2016;Qi et al, 2016;Xu et al, 2018). The butanol can replace gasoline as pure fuel or when blend with gasoline in internal combustion engines since its properties resemble those of gasoline (Szwaja & Naber, 2010; for pentanol, see Devarajan et al, 2017).…”