Ignition characteristics of saturated and unsaturated furans

Oxidation of 2-methylfuran and 2-methylfuran/n-heptane blends: An experimental and modeling study

“…The performance of the model against the newly measured ig-nition delays of stoichiometric 2-MF/oxidizer/diluent mixtures at P = 20 bar, the ignition delays measured in an ST by Uygun et al [19] at P = 40 bar, and against those measured by Sudholt et al [22] at a pressure of 20 bar in an RCM, is presented in Fig. 11.…”

“…The results demonstrate the pressure and dilution ratio dependence of measured 2-MF ignition delay times, which decreases with increasing pressure and decreasing dilution ratio. Concerning intermediate-temperature ignition delay measurements, Sudholt et al [22] and Xu et al [23] reported 2-MF experimental data in rapid compression machines at a temperature range of 824 − 1030 K. Sudholt et al [22] compared the RCM ignition delays of 2-MF with furan, 2-ethylfuran, and 2-butylfuran. The reactivity of alkylated furans was found to increase with increasing side chain length.…”

Advanced Biofuels and Beyond: Chemistry Solutions for Propulsion and Production

“…[69] These trends are reflected well in Figure 1a nd have also been observed in recent measurements of ignition delay times for an umber of furans and tetrahydrofurans. [181] They demonstrate the value of understanding at the microscopic level for understanding the macroscopic combustion behavior.…”

Recent Trends in the Production, Combustion and Modeling of Furan-Based Fuels

“…However, 2-EF was observed to be consistently the most reactive among the three investigated furans. Relative auto-ignition behavior of tetrahydrofurans was also investigated and compared with alkyl furans in a number of studies [29,[202][203][204]. 2-MTHF auto-ignition behavior received attention for the first time in a study by Wang et al [202] where high temperature ignition delays of 2-MTHF/O 2 /Ar mixtures were measured at pressures of 1.2-10 atm, temperatures of 1050-1800 K, equivalence ratios of 0.5-2.0 and fuel concentrations of 0.25-1.0%.…”

“…It was also indicated that increasing equivalence ratio has a negative effect on ignition delay times. The most extensive comparative study to date of furan, alkyl furans and tetrahydrofurans was presented by Sudholt et al [204]. Ignition delay times of the furans 2-MF, 2-EF, 2-butylfuran (2-BF) and furan, as well as the tetrahydrofurans THF, 2-MTHF, 3-MTHF and 2-ethyltetrahydrofuran (2-ETHF) were measured in a RCM at stoichiometric conditions and a pressure of 20 bar.…”