Abstract
In the presented study, the sulfur dioxide sorption properties of fly ash zeolite X were investigated. Sorption tests were performed on fly ash zeolite samples that were not prepared specially for sorption, in addition to dried samples and samples in the presence of water vapor. The samples saturated with water vapor showed the highest sorption capacity. The sorption capacity of the samples additionally dried prior to the sorption experiment was higher than that of the samples that were not specially prepared for the sorption test. Regeneration tests indicated relatively good regeneration properties. The obtained results were described with the use of Langmuir, Sips, and Dubinin–Astakhov models, with the Dubinin–Astakhov model providing the best fit.
Highlights
Fly ash comprises byproduct materials remaining from the process of fossil-fuel combustion
The volume of micropores V 0 is a measure of the SO 2 sorption limit for the sorption system. These values show that the maximum sorption limit with respect to SO 2 was highest for zeolite X saturated with water vapor
As a result of this research, it was found that zeolite X synthesized from fly ash is a good SO 2 sorbent
Summary
Fly ash comprises byproduct materials remaining from the process of fossil-fuel combustion. Fly ash formed in the process of powdered coal combustion leaves the furnace (boiler) with the exhaust gas stream and is captured using electrostatic precipitators (ESPs). It is characterized by its fine mineral dust form [1]. According to the source (fuel type, the type of furnace, use of biomass addition, and desulfurization process), fly ash has different chemical compositions [2]. Zeolites are crystalline aluminosilicates containing pores and channels of molecular dimensions and they have a wide spectrum of applications [5,6,7] Their properties allow the use of these materials in the purification. Tests were conducted using the hydrothermally synthesized zeolites from fly ash zeolite X
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
