Affiliation:
1. Faculty of Energy and Fuels, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Krakow, Poland
2. Department of Applied Chemistry, Shibaura Institute of Technology, 3-7-5 Toyosu, Koto-ku, Tokyo 135-8548, Japan
Abstract
In this paper, the sorption of NH3, H2O, SO2 and CO2 was tested for several selected inorganic materials. The tests were performed on samples belonging to two topologies of materials, faujasite (FAU) and framework-type MFI, the structures of which differ in pore size and connectivity. All sorbates are important in terms of reducing their emissions to the environment. They have different chemical nature: basic, alkaline, and acidic. They are all polar in structure and composition and two of them (ammonia and water vapor) can form hydrogen bonds. These differences result in different interactions with the surface of the adsorbents. This paper presents experimental data and proposes a mathematical description of the sorption process. The best fit of the experimental data was obtained for the Toth and GAB models. The studies showed that among the selected samples, faujasite has the best sorption capacity for ammonia and water vapor, while the best sorbent for sulfur dioxide is the MFI framework type. These materials behave like molecular sieves and can be used for quite selective adsorption of relevant gases. In addition, modification of the faujasite with organic silane resulted in a drastic reduction in the surface area of the sorbent, resulting in significantly lower sorption capacities for gases.
Funder
university IDUB for the University of Science and Technology
Subject
General Materials Science
Reference57 articles.
1. Adsorption-Driven Heat Pumps: The Potential of Metal–Organic Frameworks;Verouden;Chem. Rev.,2015
2. High and Reversible Ammonia Uptake in Mesoporous Azolate Metal–Organic Frameworks with Open Mn, Co, and Ni Sites;Rieth;J. Am. Chem. Soc.,2016
3. Controlled Gas Uptake in Metal–Organic Frameworks with Record Ammonia Sorption;Rieth;J. Am. Chem. Soc.,2018
4. Breck, D.W. (1973). Zeolite Molecular Sieves: Structure, Chemistry, and Use, John Wiley & Sons.
5. Application of natural zeolites in the purification and separation of gases;Ackley;Microporous Mesoporous Mater.,2003
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