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DYNAMIC ADSORPTION OF S02 ON ZEOLITE MOLECULAR SIEVES†
Abstract
Sulfur dioxide is one of the major pollutants resulting from fuel combustion. Numerous dry, semi-dry and wet processes have been developed for pollution control of sulfur dioxide. Solid carbonates, natural and synthetic zeolites, ion exchange resins and carbon based sorbents are the most commonly used dry sorbents for sulfur dioxide removal In this study, measurements of the adsorption properties of sulfur dioxide on zeolites were investigated. The adsorbents used in this work are 5A, 4A and AW300 type molecular sieve zeolites. Adsorption equilibrium parameters were determined from the pulse chromatographic response to injections of low concentrations of sulfur dioxide. The method of moments were used to evaluate the adsorption equilibrium parameters from pulse chromatographic experiments. Data, such as adsorption equilibrium constants or reaction rate parameters are essential in the design of adsorption systems or reactors in which sulfur dioxide is removed The experiments were conducted in a temperature range of 523-718 K. The relatively strong adsorption properties of sulfur dioxide on zeolites necessitated the use of high carrier gas flow rates and subsequently non-isobaric operation. Non-isobaric pulse chromatography theory was found to describe accurately the adsorption trends." printpubdate="Adsorption equilibrium constants of S02 were found to decrease considerably with increasing temperature. It was also found out that adsorption of SO2 on the adsorbents investigated were found to decrease in the order of AW300 4A 5A. The adsorption equilibrium parameter of S02 on 5A was found as 11.78 at 673 K, whereas it has a value of 157.11 at 523 K. The adsorption equilibrium parameter of S02 on 4A zeolite was determined to be 8.63 at 718 K and 213.78 at 523 K.
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“found that the affinity toward sulfur dioxide decreased in the order 4A > 13X > 5A.613,614”
From Zeolites in Adsorption Processes: State of the Art and Future Prospects (2022) · cites this paper as [613]
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Research works printed but not linked: 18
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Zeolites in Adsorption Processes: State of the Art and Future Prospects
Pérez-Botella, E., Valencia, S., & Rey, F. (2022) · Chemical Reviews · doi:10.1021/acs.chemrev.2c00140 · Cited by 1,126
Metadata
- Authors
- KOPAQ∗, T., KAYMAKgi, E., & KOPAC, M.
- Affiliations
- a Department of Chemistry , Zonguldak Karaelmas University , Zonguldak, 67100, Turkey
- Zonguldak Bülent Ecevit University (TR)
- Venue
- Chemical Engineering Communications
- Publisher
- Informa UK Limited
- Published
- 1998-01
- Volume
- 164
- Issue
- 1
- Pages
- 99-109
- ISSN
- 0098-6445 (ISSN-L)
- 1563-5201
- OpenAlex
- W2040824120
- Cited by
- 20
- References
- 0
- Citations by year
- 2026: 1 · 2025: 1 · 2022: 2 · 2020: 1 · 2019: 1 · 2015: 1 · 2014: 1 · 2013: 1
- FWCI
- 3.84
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Chemical Engineering Communications (publishedVersion)
- Zonguldak Bülent Ecevit University Institutional Repository (submittedVersion)
- Topics
- Physical Sciences › Environmental Science › Environmental Engineering › Industrial Gas Emission Control
- Physical Sciences › Chemical Engineering › Filtration and Separation › Carbon Dioxide Capture Technologies
- Physical Sciences › Chemistry › Inorganic Chemistry › Zeolite Catalysis and Synthesis
- Keywords
- SO2 adsorption, zeolite molecular sieves, SO2 removal, adsorption equilibrium constant, method of moments, temperature effect on adsorption, zeolite 5A, zeolite A, flue gas desulfurization
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