The supercritical water oxidation(SCWO) experimental facility was used to investigate the degradation characteristic of RDX in supercritical water.The degradation intermediate products were analyzed by using gas chromatograph coupled with a mass spectrophotometer(GC-MS).Based on the analysis on the intermediate products

the degradation mechanism of RDX in supercritical water was researched.The results showed that SCWO technology may degrade RDX effectively.Temperature and reaction time served as the main influence factors in RDX degradation efficiency.A degradation efficiency of RDX may reach 99% under the conditions of 550 ℃

24 MPa and 150 s.The main intermediate products of RDX degradation are linear paraffin and ring compounds by GC/MS measuring.