Thermal Reactions of Cyclic Ethers at High Temperatures. 4. Pyrolysis of 2,5-Dihydrifuran behind Reflected Shocks

Article abstract of DOI:10.1021/j100280a110

The pyrolysis of 2,5-dihydrofuran was studied behind reflected shocks in a single-pulse shock tube over the temperature range 880-1080 K.The main channel of the pyrolysis is the dehydrogenation reaction to form hydrogen and furan.The rate constants for this reaction obtained at high temperatures scatter along the Arrhenius line extrapolated from the low temperatures.Over the temperature range 615-1030 K (low- and high-temperature data), the rate constant k_uni = 5.3*10¹² exp (-48.5*10³/RT) s^-1 is valid over more than 6 orders of magnitude in its value.Several reaction products accompany the dehydrogenation although at a much lower rate.The product distribution shows that propylene is the main pyrolitic product, followed by acetylene and methane.