Liquid density of biofuel mixtures: (Dibutyl ether+1-butanol) system at pressures up to 140MPa and temperatures from (293.15 to 393.15)K

Liquid density of oxygenated additive 2-propanol at pressures up to 140MPa and from 293.15K to 403.15K

“…The estimated uncertainty of the measured pressure was ±0.015 MPa (Presens Precise Gold Plus pressure transmitter) and the estimated uncertainty of the determined density was ±0.5 kg m À3 (i.e., around 0.05% for density close to water density). This uncertainty is similar to that reported in several studies [3][4][5]14,15,[18][19][20][21]. No measurements have been done at p = 0.1 MPa and T higher than 353.15 K because the boiling temperature of 2-propanol at atmospheric pressure is around 355.5 K.…”

“…Details of the equipment and its operation have been described previously [3][4][5]14,15]. The densimeter was calibrated with water and vacuum following the same procedure that in our previous works [3][4][5]14,15] using the new procedure described by Comuñas et al [16] which is a modification of the procedure previously proposed by Lagourette et al [17].…”

“…In order to better correlate our values over our entire temperature and pressure ranges, i.e., to improve the previous representation (and consequently the evaluation of the derived properties); we use the following Tait-like equation, which has been used in our previous works [3][4][5][14][15][16][17][18][19][20][21][23][24][25]:…”

(ρ, VE, T) Measurements of the Ternary Mixture (Dibutyl Ether + 1-Heptanol + Heptane) at Temperatures up to 393.15 K and Pressures up to 140 MPa and Modeling Using the Peng–Robinson and PC-SAFT Equations of State

“…Nowadays, the world climate change and the exhaustion of hydrocarbon stocks are becoming a big problem. Therefore, the researchers are very interested in alternative biofuels, − which include biodiesel, bioalcohol, vegetable oil, propane, and other sources of biomass. Biofuels are used as oxygen compounds in motor fuel such as ethers, alkanols, and esters. − The oxygen present in these oxygenated compounds leads to a complete combustion of the fuel because they possess a high octane rating. , …”

High pressure and high temperature volumetric properties of (2-propanol + di-isopropyl ether) system

“…This contribution continues the research on volumetric properties of binary mixtures of alcohols and ethers at high pressure carried out by our group [4][5][6]. In this work we report volumetric properties of (2-propanol + DIPE) over the complete composition range at the temperatures from 298.15 K to 393.29 K and at pressure up to 140MPa.…”