The Zr-Doped CaO CO 2 Sorbent Fabricated by Wet High-Energy Milling

Vyacheslav V. Rodaev and Svetlana S. Razlivalova
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Vyacheslav V. Rodaev: Institute for Nanotechnology and Nanomaterials, Derzhavin Tambov State University, Internatsionalnaya Street 33, 392000 Tambov, Russia
Svetlana S. Razlivalova: Institute for Nanotechnology and Nanomaterials, Derzhavin Tambov State University, Internatsionalnaya Street 33, 392000 Tambov, Russia

Energies, 2020, vol. 13, issue 16, 1-7

Abstract: We fabricated the Zr-doped CaO sorbent for high-temperature CO 2 capture by the wet high-energy co-milling of calcium carbonate and natural zirconium dioxide (baddeleyite) for the first time. The morphology of the material was examined by scanning electron microscopy, energy-dispersive X-ray analysis and X-ray diffraction. Its CO 2 uptake capacity was determined using thermogravimetric analysis. After 50 carbonation–calcination cycles, the Zr-doped CaO sorbent characterized by a high enough CO 2 uptake capacity of 8.6 mmol/g and unchanged microstructure due to CaZrO 3 nanoparticles uniformly distributed in the CaO matrix to prevent CaCO 3 sintering under carbonation. The proposed easy-to-implement CaO-based sorbents fabrication technique is promising for industrial application.

Keywords: CaO; ZrO 2; high-energy milling; CO 2 capture; sorbent (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: 2020
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