Evolution of sorptive and textural properties of CaO-based sorbents during repetitive sorption/regeneration cycles: Part II. Modeling of sorbent sintering during initial cycles

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62690094%3A18470%2F19%3A50015552" target="_blank" >RIV/62690094:18470/19:50015552 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0009250919300971?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0009250919300971?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.ces.2018.12.065" target="_blank" >10.1016/j.ces.2018.12.065</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Evolution of sorptive and textural properties of CaO-based sorbents during repetitive sorption/regeneration cycles: Part II. Modeling of sorbent sintering during initial cycles

Popis výsledku v původním jazyce

A new model describing the evolution of sorptive and textural properties of a CaO-based sorbent during repetitive sorption/regeneration cycles has been developed. The proposed model considers the morphology of nascent monodisperse CaO and the sintering of sorbent grains upon the assumption of the surface mass-transfer mechanism. In addition, the obtained model allows predicting the change in the textural properties of the sorbent (e.g. the values of specific surface area and mean pore size) during the sorption/regeneration cycles. The obtained results show that the model of surface sintering is well applicable to the description of the decay of the sorbent sorption capacity in initial several cycles, while the previously developed model of the volume sintering provides good prediction of this decay only after several cycles. It can be assumed that during the cycling, the sintering of the sorbent switches from the surface to the volume regime. (C) 2019 Elsevier Ltd. All rights reserved.

Název v anglickém jazyce

Evolution of sorptive and textural properties of CaO-based sorbents during repetitive sorption/regeneration cycles: Part II. Modeling of sorbent sintering during initial cycles

Popis výsledku anglicky

A new model describing the evolution of sorptive and textural properties of a CaO-based sorbent during repetitive sorption/regeneration cycles has been developed. The proposed model considers the morphology of nascent monodisperse CaO and the sintering of sorbent grains upon the assumption of the surface mass-transfer mechanism. In addition, the obtained model allows predicting the change in the textural properties of the sorbent (e.g. the values of specific surface area and mean pore size) during the sorption/regeneration cycles. The obtained results show that the model of surface sintering is well applicable to the description of the decay of the sorbent sorption capacity in initial several cycles, while the previously developed model of the volume sintering provides good prediction of this decay only after several cycles. It can be assumed that during the cycling, the sintering of the sorbent switches from the surface to the volume regime. (C) 2019 Elsevier Ltd. All rights reserved.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10403 - Physical chemistry

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

CHEMICAL ENGINEERING SCIENCE

ISSN

0009-2509

e-ISSN

—

Svazek periodika

199

Číslo periodika v rámci svazku

May

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

8

Strana od-do

156-163

Kód UT WoS článku

000460156700013

EID výsledku v databázi Scopus

2-s2.0-85060752819