Page 13 - Gas Adsorption Equilibria
P. 13
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In publishing this book the authors hope to contribute to
the development of effective and reliable methods to measure pure
gas and gas mixture adsorption equilibria;
preventing young (and old) experimenters from doing all the
*)
mistakes we have done during our laboratory work ;
making experimental gas adsorption data measured today in many
laboratories all over the world more easily comparable to each
other, as methods and procedures should be come more and more
similar and possibly also will be standardized (IUPAC) in the
years to come.
In view of the complexity of interaction of molecules from fluid, i. e.
gaseous or liquid phases with the atoms of the surface of a solid material the
authors have put their emphasis on experimental measurement methods
approaching especially mixture adsorption phenomena. Of course we are well
aware that simulation of adsorption systems based on molecular models is
making considerable progress. This especially is promoted by still growing
computer capacities and new and powerful software and simulation programs.
However, reality is in experiment, not in computer’s silica. There only our
present knowledge and model of physical-chemical reality can be reflected.
Nevertheless, we expect in future a combination of highly selective chosen
key experiments and computer simulations to be the most effective way to
make progress in the complex field of gas mixture adsorption equilibria and
probably also in some neighboring fields like adsorption kinetics. However,
all these interesting fields of adsorption science including applications of
adsorption phenomena to chemical engineering are not considered here but
left to other authors.
In view of space limitations neither all of the experimental details and
tricks of the various measurement methods nor all of the analytic arguments
of the underlying theories could be presented. If readers do have questions
they are cordially invited to approach the authors, namely for the former RS ** )
** )
for the later JUK .
*) A true experimenter pursues his goal till everything in the lab is ruined. Often only then he
becomes aware that nobody has taken notes of what was done and what has really happened
(W. Sibbertsen, 1990).
**) keller@ift.maschinenbau.uni-siegen.de
Staudt@inc.uni-leipzig.de