Solubility of hydrocarbon oils in alcohols (≤C₆) and synthesis of difusel carbonate for degreasing

Abstract

The empirical solubility of hydrocarbon fluids, polyalphaolefin (PAO) and mineral oil, in thirteen small molecular weight alcohols (C 1 -C 6 ) was determined. Butanols, pentanols, and 1-hexanol could dissolve up to PAO-10 and mineral oil. tert-Pentanol and 1-hexanol could also dissolve high-viscosity PAO-150.The dialkyl carbonate of fusel oil (DFC) was synthesized from dimethyl carbonate in 69% yield. DFC had excellent non-polar solubility and could dissolve PAO-150 and several common industrial lubricants. The flash point of DFC was 93 C, more than twice that of isoamyl alcohol. DFC had net heating value of 30.47 MJ kg À1 , nearly double that of dimethyl carbonate. However, its derived cetane number of 22.8 indicates DFC could not be used directly as diesel fuel.

Ethanol-blended petroleum fuels: implications of co-solvency for phytotechnologies

“…This is not unexpected since the solubility of petroleum hydrocarbons under room temperature decreases with increasing molecular weight and aromaticity (high stability). 35,36 This also explains why for polycyclic aromatic hydrocarbons (PAHs), the lighter aromatic hydrocarbons such as alkylnaphthalenes ( Fig. 5) eluted more efficiently from the column than the heavier ones such as alkylphenanthrenes (Fig.…”

Preparation and characterization of quaternary bacterial cellulose composites for antimicrobial oil‐absorbing materials

“…Figure 6 illustrates the process of removing oil from water using BC-DMC8. It can be seen that the BC-DMC complex adsorbs the oil from the water within 10 s. Following each experimental series, the oil absorbed by the sample was reclaimed by rinsing it with 30 mL n-butanol for 5 h. 48,49 Subsequently, another round of oil absorption testing was performed after thorough drying in an electric oven. The data from each group were measured three times to obtain an average value, and the statistics of the cyclic oil absorption results is presented in Figure 7.…”

Densities of Dilute Aqueous Solutions of 1-Butanol and 1-Pentanol at Atmospheric Pressure and Temperatures in the Range of 283.15 to 353.15 K

“…To prevent evaporation of the liquid in the dilatometer during measurements for the determination of density at the temperatures of interest, about 0.2 mL of Edwards Ultra Grade 19 vacuum-pump oil was added (with a dropper) on top of the surface of the liquid within the burette (which would otherwise be exposed to the ambient air). The Edwards Ultra Grade 19 oil is primarily mineral oil (w minereral oil = 0.98 kg• kg −1 ); which is insoluble in water, ethanol, 56 and 1-butanol. 56 Although it is soluble in 1-pentanol, 56 this solubility had no notable effects on the density measurements, given the low concentrations of 1-pentanol in the dilute aqueous solutions used in this work and the 5 mm diameter bore of the burette used to construct the measurement section of the dilatometer (total volume of the liquids in dilatometer is about 225 mL).…”

“…The Edwards Ultra Grade 19 oil is primarily mineral oil (w minereral oil = 0.98 kg• kg −1 ); which is insoluble in water, ethanol, 56 and 1-butanol. 56 Although it is soluble in 1-pentanol, 56 this solubility had no notable effects on the density measurements, given the low concentrations of 1-pentanol in the dilute aqueous solutions used in this work and the 5 mm diameter bore of the burette used to construct the measurement section of the dilatometer (total volume of the liquids in dilatometer is about 225 mL). As this oil was less dense than the liquids of interest (specific gravity: 0.86 at 15 °C; see the Supporting Information for additional specifications), it remained on the top of the surface of the liquid in the burette.…”