Naphthalene oxidation in supercritical water

摘要: Characteristic features of naphthalene oxidation and the kinetics pyrolysis in supercritical water (SCW) were studied using a batch reactor under isobaric conditions at pressure 30 MPa, temperature range from 660 °C to 750 °C, for different levels oxygen supply, varying 0 2.5 moles O2 per mole naphthalene. The produces benzene, toluene, methane, hydrogen, soot, carbon oxides. rate constant SCW was found be k = 1012.3±0.2exp(–E/T) s–1 where E 35400±500 K. For T > participates chemical reactions conversion, particularly, formation conversion pure is accompanied by heat evolution. Molecular oxidizes part completely, i.e., CO2 H2O, this reaction being so prompt that some cases, self-heating mixture thermal explosion observed.