Behavior of Dolomites under Fluidized Bed Sorption-Enhanced Gasification Conditions
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27240%2F25%3A10260091" target="_blank" >RIV/61989100:27240/25:10260091 - isvavai.cz</a>
Result on the web
<a href="https://pubs.acs.org/doi/10.1021/acs.iecr.4c04520" target="_blank" >https://pubs.acs.org/doi/10.1021/acs.iecr.4c04520</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/acs.iecr.4c04520" target="_blank" >10.1021/acs.iecr.4c04520</a>
Alternative languages
Result language
angličtina
Original language name
Behavior of Dolomites under Fluidized Bed Sorption-Enhanced Gasification Conditions
Original language description
This work investigates the behavior of dolomites during sorption-enhanced gasification in dual interconnected fluidized bed systems for the production of H2-rich syngas. Two sorbents, one of Italian origin, the other of Polish origin, with CaO content ranging from 60 to 63 wt %, and MgO content around 32-33 wt %, were subjected to calcination/carbonation cycles (10 cycles for each test) in a lab-scale apparatus. In particular, the temperature of the fluidized bed carbonation stage was varied between 600 and 700 degrees C, both in the absence and in the presence of water vapor. With an eye to the role of the operating conditions, for each material, the following aspects were investigated: CO2 capture capacity, fragmentation tendency, and elutriation phenomena upon surface wear. The discussion was then extended by recalling previous results obtained on a set of 6 limestones (rich in Ca) under the same operating conditions through a comparison analysis between the behavior of dolomites versus limestones. In particular, it was observed that steam is capable of positively influencing the dolomite behavior in terms of CO2 capture; the elutriation rate is markedly more relevant upon calcination than carbonation, negatively affected by the presence of steam, and less extensive for sorbents showing higher CO2 capture. Normalizing the CO2 capture on the CaO content, the performance of dolomites is comparable to that of limestones, although dolomites have a more fragile structure that increases their tendency to undergo fluidized bed fragmentation.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20704 - Energy and fuels
Result continuities
Project
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Continuities
O - Projekt operacniho programu
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Industrial and engineering chemistry research
ISSN
0888-5885
e-ISSN
1520-5045
Volume of the periodical
64
Issue of the periodical within the volume
10
Country of publishing house
US - UNITED STATES
Number of pages
11
Pages from-to
5269-5279
UT code for WoS article
001433834300001
EID of the result in the Scopus database
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