Studies on the CO 2 Capture by Coal Fly Ash Zeolites: Process Design and Simulation

Silviya Boycheva, Ivan Marinov and Denitza Zgureva-Filipova
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Silviya Boycheva: Department of Thermal and Nuclear Power Engineering, Technical University of Sofia, 8 Kl. Ohridsky Blvd., 1000 Sofia, Bulgaria
Ivan Marinov: Department of Thermal and Nuclear Power Engineering, Technical University of Sofia, 8 Kl. Ohridsky Blvd., 1000 Sofia, Bulgaria
Denitza Zgureva-Filipova: College of Energy and Electronics, Technical University of Sofia, 8 Kl. Ohridsky Blvd., 1000 Sofia, Bulgaria

Energies, 2021, vol. 14, issue 24, 1-15

Abstract: At present, mitigating carbon emissions from energy production and industrial processes is more relevant than ever to limit climate change. The widespread implementation of carbon capture technologies requires the development of cost-effective and selective adsorbents with high CO 2 capture capacity and low thermal recovery. Coal fly ash has been extensively studied as a raw material for the synthesis of low-cost zeolite-like adsorbents for CO 2 capture. Laboratory tests for CO 2 adsorption onto coal fly ash zeolites (CFAZ) reveal promising results, but detailed computational studies are required to clarify the applicability of these materials as CO 2 adsorbents on a pilot and industrial scale. The present study provides results for the validation of a simulation model for the design of adsorption columns for CO 2 capture on CFAZ based on the experimental equilibrium and dynamic adsorption on a laboratory scale. The simulations were performed using ProSim DAC dynamic adsorption software to study mass transfer and energy balance in the thermal swing adsorption mode and in the most widely operated adsorption unit configuration.

Keywords: carbon capture; coal fly ash zeolites; thermal-swing adsorption; dynamic process simulation; plant design (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
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