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- Conflict of Interest
- In relation to this article, we declare that there is no conflict of interest.
- Publication history
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Received August 30, 2024
Accepted October 18, 2024
Available online February 25, 2025
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This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits
unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
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Comparative Study on Ammonia Adsorption Characteristics of Various Porous Materials and Ammonia Adsorption Eff ect According to MgCl 2 Impregnation
https://doi.org/10.1007/s11814-024-00316-w
Abstract
Ammonia plays a very important role as a fuel or as a potential source of hydrogen, and its separation and recovery are
important in various processes. In this study, an adsorbent that can be applied to PSA processes over a wide temperature range
was developed. To select the support, alumina silica, two types of zeolites, and carbon molecular sieves were considered
and characterized through BET, TGA, NH 3 -TPD, and high-pressure ammonia isotherm adsorption analyses. An adsorbent,
Z-13X, whose adsorption and regeneration characteristics and structure of the support were kept constant was selected, and
MgCl 2 was introduced into the support. The eff ect of introducing MgCl 2 was compared and analyzed according to the metal
loading, and the impregnation of a certain amount of MgCl 2 maintained the structural characteristics of Z-13X and improved
the adsorption performance. Additionally, it was confi rmed that the adsorption performance increased near the initial low
pressure and was excellent in terms of regeneration characteristics, heat of adsorption, and NH 3 selectivity.
