Study on Equilibrium and Kinetics of 4?Molecular Sieves Adsorption of Small Amount of Water from UDMH
The adsorption characteristics of small amount of water in unsymmetrical dimethyl hydrazin (UDMH) on 4(A) molecular sieves were studied in the paper. The isothermal adsorption data was measured, and fitted well by the models of Langmiur and Freundlich. Thermodynamics functions of adsorption were calculated by Clausius-Clapeyron, and the mechanism of adsorption was discussed. All adsorption heat was measured by micro DSC. The results indicate that the adsorptive capacity of water on 4(A) molecular sieves was 0.2g/g and isometric adsorption heat was between 28.5 kJ/mol-38.1 kJ/mol. This process was a type of physical adsorption. Besides, in adsorptive capacity corresponding measured adsorption heat by micro DSC was slightly big than was calculated date by comparatively.
application chemistry 4(A)molecular sieves UDMH water thermodynamic of adsorption
GOU Xiaoli CHEN Yaping LI Xia WANG Xuanjun
Xian Research Institute of Technology 503 staff, Xian 710025, Shaanxi, China College of Science, Beijing University of Aeronautics & Astronautics, Beijing 100083, China
国际会议
2009 International Autumn Seminar on Propellants,Ezplosives and Pyrotechnics(2009国际推进剂、炸药、烟火技术秋季研讨会)
昆明
英文
1-3
2009-09-22（万方平台首次上网日期，不代表论文的发表时间）