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Title: Sorption of carbon dioxide by porous crystals and carbons
Author: Coughlan, Brendan
Awarding Body: University of London
Current Institution: Imperial College London
Date of Award: 1964
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An apparatus was built to study, volumetrically, the sorption of gases at temperatures between -90°C and 1900 C. This apparatus was used to study the adsorption of carbon dioxide on NaX, NaY, CaY, NaA, CeA, erionite, phillipsite, Na-Zeolon, H-Zeolon, Ca-chabazite, clinoptilolite, acid treated forms of clinoptilolite and steam activated cellulose carbons. All the sorbents gave reversible and reproducible isotherms from which the isosteric heats and partial molar entropies were obtained. Except for a slight initial energetic heterogeneity, carbon dioxide sorption on NaY, erionite, 2N clinoptilolite and the cellulose carbons was energetically homogeneous; all the other systems were energetically heterogeneous. The energetic heterogeneity was markedly influenced by the cation density of the sorbent; the completely decationized zeolite, 2N clinoptilolite was energetically homogeneous. The change in the thermodynamic properties of some sorbents on sorption was obtained and in all cases these changes were small.
Supervisor: Barrer, R. M. Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available