Thermal decomposition of n-nitrosopiperazine

摘要

Thermal decomposition of n-nitrosopiperazine (MNPZ) was measured in 0.2-8 m aqueous piperazine (PZ) loaded with 0.1 to 0.3 mol CO2/equiv N from 100 to 165 °C. In 8 PZ with 0.3 mol CO2/equiv N, MNPZ thermal decomposition follows Arrhenius temperature dependence with an activation energy of 94 kJ/mol and a rate constant of 10.2 ~*10~(-6) s~(-1) at 135 °C. MNPZ decomposition is dependent on PZ concentration and CO2 loading, but independent of stainless steel ions and stainless steel surface.