Kinetic Study on the Reaction of NH_3 Thermal Decomposition

摘要

The paper develops a kinetic study on the reaction of NH_3 thermal decomposition at 700 deg C,750 deg C and 800 deg C,developed under dynamic conditions,in an installation equipped with a quartz reactor.Dosing of the reactant NH_3 was made with a specific chemical method.Interpretation of the kinetic curves enables evaluation of the kinetic parameters:reaction order,rate constant,activation energy and preexponential factor.Variation of the reaction order,of the rate constant and of the activation energy with the contact time confirms the development of the reaction according to a complex mechanism,in a degenerated branched homogeneous-heterogeneous chain,as evidenced in previous papers.