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Journal of Materials Science and Nanotechnology | Volume 3
October 07-08, 2019 | Frankfurt, Germany
Materials Science and Engineering
3
rd
International Conference on
Mater Sci Nanotechnol, Volume 3
Impacts of entropic separation effects
Alexander von Wedelstedt
HTW University of Applied Sciences, Germany
O
ne of the fundamental challenges of our time is to
mitigate the effects of climate change and to strive for
a responsible handling of resources and raw materials. In
order to reach those goals, industrial processes need to be
altered as well. This development must, among other things,
aim to replace unsustainable by eco-friendly methods. One
such example would be the replacement of unsustainable
processes like distillation to separate hydrocarbons by
adsorption methods. Due to their high surface-to-volume
ratio and the wide range of possibilities to design and
modify the pore environment, metal-organic frameworks
are appropriate candidates to conduct highly efficient
adsorption processes to separate hydrocarbons. However,
for a broad industrial application, comprehensive knowledge
of separation effects and the behaviour of guest molecules
within the channels of metal-organic frameworks is needed.
Besides the well-known separation mechanisms, based on
enthalpic, kinetic or steric (i.e., sieving) differences, there is
a further mechanism based on entropic effects, which seems
to be virtually unknown and is, hence, often ignored. Those
entropic effects describe the efficiency with which guest
molecules can arrange themselves inside the channels of
nanoporous materials. Due to the remarkable selectivities
that can be reached through entropic separations, they are
of particular interest. The aim of this presentation is to give
a short outline of entropic separation effects and to present
individual results of the entropic separation of hydrocarbons
obtained by Monte Carlo simulations.
e
:
alexandar.vonwedelstedt@htw-dresden.de