Research output: Contribution to journal › Article › peer-review
Detailed modeling of sorptive and textural properties of CaO-based sorbents with various porous structures. / Bazaikin, Ya V.; Malkovich, E. G.; Prokhorov, D. I. et al.
In: Separation and Purification Technology, Vol. 255, 117746, 15.01.2021.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Detailed modeling of sorptive and textural properties of CaO-based sorbents with various porous structures
AU - Bazaikin, Ya V.
AU - Malkovich, E. G.
AU - Prokhorov, D. I.
AU - Derevschikov, V. S.
N1 - Publisher Copyright: © 2020 Elsevier B.V. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2021/1/15
Y1 - 2021/1/15
N2 - In the current study, the volume-sintering model was implemented for the simulation of sorption/desorption and textural evolution of the set of CaO-based sorbents with broad differences in porous structure. The porous structure of the materials was modeled with the dense random packing of spheres using the Lubachevsky–Stillinger compression algorithm. The simulated packages were fitted to the parameters of the porous structure of real templated and non-templated CaO-based sorbents. The sintering of the packages during sorption/regeneration cycles was carried out based on the assumptions of the lattice diffusion mechanism and the sintering rate of CaCO3 being higher than that of CaO in the proposed model. The obtained model predicts well the dependence of textural changes and the recarbonation extent on the number of the sorption/regeneration cycles for the sorbents with different porosity and grain size.
AB - In the current study, the volume-sintering model was implemented for the simulation of sorption/desorption and textural evolution of the set of CaO-based sorbents with broad differences in porous structure. The porous structure of the materials was modeled with the dense random packing of spheres using the Lubachevsky–Stillinger compression algorithm. The simulated packages were fitted to the parameters of the porous structure of real templated and non-templated CaO-based sorbents. The sintering of the packages during sorption/regeneration cycles was carried out based on the assumptions of the lattice diffusion mechanism and the sintering rate of CaCO3 being higher than that of CaO in the proposed model. The obtained model predicts well the dependence of textural changes and the recarbonation extent on the number of the sorption/regeneration cycles for the sorbents with different porosity and grain size.
KW - Calcium oxide
KW - Modeling
KW - Porous structure
KW - Sintering
KW - Sorbent
KW - Template
UR - http://www.scopus.com/inward/record.url?scp=85091796633&partnerID=8YFLogxK
U2 - 10.1016/j.seppur.2020.117746
DO - 10.1016/j.seppur.2020.117746
M3 - Article
AN - SCOPUS:85091796633
VL - 255
JO - Separation and Purification Technology
JF - Separation and Purification Technology
SN - 1383-5866
M1 - 117746
ER -
ID: 25628472