Szczegóły publikacji
Opis bibliograficzny
The feasibility of $CO_{2}$ emission reduction by adsorptive storage on Polish hard coals in the Upper Silesia Coal Basin: an experimental and modeling study of equilibrium, kinetics and thermodynamics / Elżbieta Gabruś, Karolina Wojtacha-Rychter, Tomasz Aleksandrzak, Adam Smoliński, Magdalena KRÓL // Science of the Total Environment ; ISSN 0048-9697. — 2021 — vol. 796 art. no. 149064, s. 1–16. — Bibliogr. s. 14–16, Abstr. — Publikacja dostępna online od: 2021-07-14
Autorzy (5)
- Gabruś Elżbieta
- Wojtacha-Rychter Karolina
- Aleksandrzak Tomasz
- Smoliński Adam
- AGHKról Magdalena
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 135392 |
|---|---|
| Data dodania do BaDAP | 2021-07-27 |
| Tekst źródłowy | URL |
| DOI | 10.1016/j.scitotenv.2021.149064 |
| Rok publikacji | 2021 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Creative Commons | |
| Czasopismo/seria | Science of the Total Environment |
Abstract
Carbon dioxide storage in unmineable coal seams is advantageous in the highly industrialized areas, such as the Upper Silesia Coal Basin (USCB), Poland, where heavy industry constitutes the source of huge CO2 emissions and coal mines will be closed in the future, due to unprofitability. The paper presents the results of experimental and theoretical research of CO2 capture on medium rank C and B bituminous coals coming from three mines located in the USCB. The porous texture of the investigated adsorbents was analyzed using SEM images and the N2 and CO2 isotherms at −196 °C and 0 °C, respectively. Qualitative studies using DRIFT spectroscopy showed that band intensity attributed to the functional groups of coals changed after CO2 adsorption. The analyses encompassed the equilibrium, kinetics and thermodynamics of CO2 adsorption on coals at 25, 50 and 75 °C (up to 2000 kPa). The adsorption isotherms were obtained by the static gravimetric method and described by means of the Langmuir, Freundlich, Dubinin-Radushkevich and Dubinin-Astakhov models. The highest CO2 uptakes were obtained for medium rank C bituminous coals at 25 °C; the values were 1.600 mol/kg and 1.274 mol/kg. The adsorption kinetics was better characterized by the Avrami fractional-order model rather than by the pseudo-first and pseudo-second order models. The results reveal that the adsorption process is the fastest for medium rank C bituminous coals. The isosteric heats of adsorption were calculated in the following two ways: based on the multi-temperature Toth isotherm and the Clausius-Clapeyron equations. Depending on degree of coal metamorphism, the heat of adsorption ranged from 18 to 26 kJ/mol. The estimated maximum temperature increase due to heat accumulation in the insulated coalbed during CO2 adsorption was 6 °C and did not reach the self-ignition temperature in any of the tested adsorption systems.