Shelf Life Prediction of a Novel Liquid Fuel 2-Dimethylaminoethyl Azide (DMAZ)

Abstract

2-Dimethylaminoethyl azide (DMAZ) is a good replacement for the hydrazine family in space industries. In this article, the accelerated ageing test method was applied for predicting the shelf life of DMAZ. The effective parameters on the storage of the fuel were temperature, the type of gas atmosphere with its pressure over the liquid fuel, and moisture. Appropriate conditions for DMAZ storage were N2 at a pressure of 3 bar and a moisture content of 0.05 wt.%. The sigmoid form of the decomposition curves obtained revealed that the decomposition reaction is autocatalytic. Modelling of the decomposition rate showed that the shelf life of DMAZ was 7.73 years at 25 °C.

Influencing Factors of Autoxidation Kinetics Parameters of Endothermic Hydrocarbon Fuels

“…In recent years, chemical kinetic models have been developed which simulate the major autoxidation pathways that occur in jet fuels. , Calculating kinetics is a common method to investigate reaction rates and activation energy. Moreover, the kinetic equations can be used to predict the storage period of liquid fuels and propellants, such as the Arrhenius and Berthelot equations. − Density functional theory is also used to calculate the energetics and kinetics of important reactions for jet fuel oxidation. , Autoxidation can cause fuel deterioration, − such as dissolved oxygen reacting with fuel to produce peroxy radicals, which in turn form peroxides. Peroxide has a serious corrosion effect on rubber, , which can cause aging and cracking of sealing materials in the aircraft oil system and result in fuel leakage.…”

Photocatalytic Degradation of Dimethyl Aminoethyl Azide in Water via TiO2/Light Expanded Clay Aggregate Catalyst

“…Dimethyl aminoethyl azide (DMAZ) is the most famous organic azide compound and there exist some reports on synthesis and purification of liquid fuel DMAZ. In all methods, usually low amounts of DMAZ were found in wastewater , . Thus, DMAZ recovery from wastewater is not economic.…”