Thermodynamic database of zeolites and new method of their thermodynamic properties evaluation for a wide temperature rangeстатьяИсследовательская статья
Статья опубликована в высокорейтинговом журнале
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Дата последнего поиска статьи во внешних источниках: 11 ноября 2019 г.
Аннотация:A database on the thermodynamic properties of zeolites has been created. It contains the published raw experimental measurements of heat capacities, heat contents and enthalpies of formation for 46 zeolites at T=0−1000K. This is about 1/3 higher than in previous reviews and databases. The zeolites from the database consist from H2O and oxides of Li, Na, K, Tl, Ca, Mg, Sr, Ba, Fe, Al and Si. All experimental data were approximated by sums of Einstein-Planck functions in the entire temperature range. Heat capacity anomalies were described by addition of extra terms to the sum. A new additive composition dependent model for estimation of thermodynamic properties of zeolites was suggested. It’s based on the collected data and is valid for a wide temperature range.