SO2 sorption properties of fly ash zeolites

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.

Geopolymer Building Materials Based on Fly Ash in Terms of Removing SO2, CO2, and Water Vapor

“…Atmospheric emissions of sulfur dioxide (SO2) are a concern due to their adverse impact on climate and human health [29]. Inhaling SO2 increases the risk of diseases such as stroke, heart disease and lung cancer.…”

“…This proves that over 68% of sulfur dioxide emissions come from anthropogenic sources [32]. Figure 3 Atmospheric emissions of sulfur dioxide (SO 2 ) are a concern due to their adverse impact on climate and human health [29]. Inhaling SO 2 increases the risk of diseases such as stroke, heart disease and lung cancer.…”