<abstract xmlns="http://www.w3.org/1999/xhtml">

The current work presents the results of seven sorbent samples investigated with respect to SO2 capture. The sorbents’ reactivity and capacity indexes were determined, and the tests were carried out in accordance with the ‘classical’ procedure for limestone sorbents. The reactivity indexes (RIs) of the tested samples were in the range of 2.57 and 3.55 (mol Ca)/(mol S), while the absolute sorption coefficients as determined by the capacity index (CI) varied between 87.9 and 120.6 (g S)/(kg of sorbent). Porosimetric analysis was also carried out and the specific surface area of the samples was found to be between 0.2 and 1.7 m2/g. The number of micro-, meso- and macro-pores in individual samples was determined from the corresponding pore size distribution histograms, and the values of sorbent RIs and CIs were correlated with the samples’ total porosity and specific surface.
</abstract>

The current work presents the results of seven sorbent samples investigated with respect to SO2 capture. The sorbents’ reactivity and capacity indexes were determined, and the tests were carried out in accordance with the ‘classical’ procedure for limestone sorbents. The reactivity indexes (RIs) of the tested samples were in the range of 2.57 and 3.55 (mol Ca)/(mol S), while the absolute sorption coefficients as determined by the capacity index (CI) varied between 87.9 and 120.6 (g S)/(kg of sorbent). Porosimetric analysis was also carried out and the specific surface area of the samples was found to be between 0.2 and 1.7 m2/g. The number of micro-, meso- and macro-pores in individual samples was determined from the corresponding pore size distribution histograms, and the values of sorbent RIs and CIs were correlated with the samples’ total porosity and specific surface.

The effect of porosity on the reactivity of calcium sorbents

Faculty of Infrastructure and Environment, Department of Advanced Energy Technologies

Mineralogia

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

{"article-title":"The effect of porosity on the reactivity of calcium sorbents"}

The current work presents the results of seven sorbent samples investigated with respect to SO2 capture. The sorbents’ reactivity and capacity indexes were...

The effect of porosity on the reactivity of calcium sorbents

Published Online: Oct 27, 2020

Page range: 37 - 45

Received: May 08, 2020

Accepted: Sep 28, 2020

DOI: https://doi.org/10.2478/mipo-2020-0004

Keywords
limestone, desulfurization, sorbent, reactivity, fluidization

© 2020 Michał Wichliński et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

The effect of porosity on the reactivity of calcium sorbents

Published Online: Oct 27, 2020

Page range: 37 - 45

Received: May 08, 2020

Accepted: Sep 28, 2020

DOI: https://doi.org/10.2478/mipo-2020-0004

Keywordslimestone, desulfurization, sorbent, reactivity, fluidization

© 2020 Michał Wichliński et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
limestone, desulfurization, sorbent, reactivity, fluidization