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Enthalpy of isopropanol adsorption on zeolite

Jabłoński Maciej, Dzienisz Alicja, Sawicka Marta, Wróblewska Elwira, Lubkowski Krzysztof, Dąbrowska Grażyna, Piz Mateusz, Sreńscek-Nazzal Joanna

Polish Journal of Chemical Technology

2019

Vol. 21, nr 4

58--65

The enthalpy of isopropanol adsorption on ZSM-5 (Zeolite Socony Mobil Framework Type MFI) was determined by the static adsorption method at the temperature range from 20°C to 100°C. Langmuir and Huttig models of equilibrium adsorption have been used to calculate the enthalpy of isopropanol adsorption at these conditions. Adsorption isotherms determined by the flow method at 20°C and 30°C have been also used in the calculations. The obtained values of isopropanol adsorption enthalpy were compared with the values of isopropanol evaporation enthalpy and with the results obtained from isopropanol and water desorption measurements with thermogravimetry and differential scanning calorimetry methods.