Open AccessAdsorption Heat-Flow Microcalorimetry Applied to Coal Surface Properties
Author(s) -
Pier Francesco Rossi
Publication year - 1992
Publication title -
adsorption science and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.682
H-Index - 36
eISSN - 2048-4038
pISSN - 0263-6174
DOI - 10.1177/026361749200900303
Subject(s) - isothermal microcalorimetry , chemistry , adsorption , vapours , coal , thermodynamics , heat flow , chemical engineering , organic chemistry , enthalpy , thermal , physics , neuroscience , biology , engineering
An account is given of the various forces involved in the adsorption of gases and vapours at a solid surface. The heat evolved during such processes may be measured by means of a microcalorimeter such as that designed by Calvet, whose description and application is discussed in detail. The use of such a microcalorimeter in studying adsorption at coal surfaces is described where differences in the measured differential heats of adsorption may be attributed either to the residual mineral content of the coal and/or to oxidation by air during its pretreatment.