Dissociation of 2-Methyl Furan at High Temperatures

摘要

The thermal dissociation of 2-methyl furan (2-MF) has been studied behind incident shock waves in a diaphragmless shock tube using laser schlieren densitometry, LS, over the temperature range of 1571-2396 K at pressures of 120±10 Torr. The LS density gradient profiles were simulated, and were found to be quite sensitive to the reactions of 2-MF → MF22j + H (1a) and 2-MF → C_3H_3 + CH_3CO (1b) due to their large enthalpies of reactions. The first-order rate coefficients for these reactions at 120 Torr were determined to be k_(1a)=3.98×10~(109) T~(-26.8) exp(-74430/T) s~(-1) and k_(1b)= 2.00×10~(107) T~(-26.7) exp(-66391/T) s~(-1).