论文部分内容阅读
By using an automatic adiabatic calorimeter the heat capacity measurements in the tem-perature range of 220—320K for H_2O/NaY zeolite adsorption system with various amounts of adsorbedwater have been made.In c_p-T curves obtained,there is no peak for solid-liquid phase transitionof the adsorbed water.But for H_2O-NaY zeolite system which consists of a saturated H_2O/NaYadsorption system mixed mechanically with a certain amount of water,there are distinct peaks intheir c_p-Tcurves.The peak in the c_p-Tcurve disappeared as soon as the mixed water in the lattersystem was evacuated.The facts mentioned above have been discussed from the point of view ofthe structure of the adsorbed layer and the pore size of zeolite.
By using an automatic adiabatic calorimeter the heat capacity measurements in the tem-perature range of 220-320K for H20 / NaY zeolite adsorption system with various amounts of adsorbedwater have been made.In c_p-T curves obtained, there is no peak for solid- liquid phase transition of the adsorbed water.But for H 2 O-NaY zeolite system which consists of a saturated H 2 O / Na Yadsorption system mixed mechanically with a certain amount of water, there are distinct peaks intheir c_p-Tcurves.The peak in the c_p-Tcurve disappeared as soon as the mixed water in the lattersystem was evacuated. The facts mentioned above have been discussed from the point of view of the structure of the adsorbed layer and the pore size of zeolite.