Hydration heats of zeolites for evaluation of heat exchangers

Citation
N. Petrova et al., Hydration heats of zeolites for evaluation of heat exchangers, J THERM ANA, 64(1), 2001, pp. 157-166
Citations number
13
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences
Journal title
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
ISSN journal
1388-6150 → ACNP
Volume
64
Issue
1
Year of publication
2001
Pages
157 - 166
Database
ISI
SICI code
1388-6150(2001)64:1<157:HHOZFE>2.0.ZU;2-G
Abstract
The enthalpy of hydration of purified clinoptilolite from Beli Plast, Bulga ria, and various cation-exchanged types such as Na-, K-, Ca- and Mg-clinopt ilolite was determined by the adiabatic water-vapor absorption calorimeter. The hydration enthalpy becomes more exothermic in the sequence K, Na, Ca, Mg depending on hydration energy values of exchanged cations. Na-clinoptilo lite would be an efficient heat exchanger in a wide temperature range of de hydration, 180-300 degreesC, while Mg-clinoptilolite in higher temperatures , 300-350 degreesC.