Mineral CO₂ Sequestration in Industrial Waste Materials: A Comparative Study Using FTIR, TGA and Calcimetry

Avtorji

Sara Tominc
Slovenian National Building and Civil Engineering Institute image/svg+xml
https://orcid.org/0000-0003-3956-9109
Majda Pavlin
Slovenian National Building and Civil Engineering Institute image/svg+xml
https://orcid.org/0000-0002-1701-8130
Maruša Mrak
Slovenian National Building and Civil Engineering Institute image/svg+xml
Vilma Ducman
Slovenian National Building and Civil Engineering Institute image/svg+xml
Ognjen Rudić
Graz University of Technology image/svg+xml
Cyrill Grengg
Graz University of Technology image/svg+xml
DOI: https://doi.org/10.18690/um.fkkt.1.2026.8

Kratka vsebina

Mineral CO2 sequestration is a promising approach for reducing greenhouse gas emissions by storing CO2 in stable forms permanently. This process involves capturing CO2 and converting it into solid carbonates through mineralisation. Waste ashes and slags, by-products of waste incineration and steel production, are promising materials for CO2 sequestration, due to their high alkalinity and reactive mineral phases. In this study, the CO2 sequestration potentials of different metallurgical slags and incineration ashes from Austria and Slovenia were analysed using Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), and calcimetry. Biomass ash (A1) showed the highest sequestration capacity of 153.7 g CO2 per kg of ash.

Biografije avtorja

Sara Tominc, Slovenian National Building and Civil Engineering Institute

Sara Tominc, dr. med., je raziskovalka na Oddelku za materiale v Laboratoriju za cemente, malte in keramiko na Slovenskem gradbenem inštitutu. Njene raziskave se osredotočajo na tradicionalno keramiko in koristno uporabo odpadnih materialov v gradbeništvu. Diplomirala je iz kemije in kemijskega inženirstva na Univerzi v Mariboru, doktorirala pa na Institutu Jožef Stefan, kjer je raziskovala vpliv petvalentnih dopantov na dvojčenje in razvoj mikrostrukture v SnO₂ keramiki za visokozmogljive varistorje in dielektrike. Specializirana je za elektronsko mikroskopijo, termično analizo in karakterizacijo odpadkov. V zadnjem času raziskuje pospešeno karbonizacijo mineralov, s ciljem razumeti mehanizme in kinetiko sekvestracije CO₂ ter optimizirati pogoje karbonizacije.

Ljubljana, Slovenija. E-pošta: sara.tominc@zag.si

Majda Pavlin, Slovenian National Building and Civil Engineering Institute

Ljubljana, Slovenija. E-pošta:  majda.pavlin@zag.si

Maruša Mrak, Slovenian National Building and Civil Engineering Institute

Ljubljana, Slovenija. E-pošta: marusa.mrak@zag.si

Vilma Ducman, Slovenian National Building and Civil Engineering Institute

Ljubljana, Slovenija. E-pošta: vilma.ducman@zag.si

Ognjen Rudić, Graz University of Technology

Gradec, Avstrija. E-pošta: ognjen.rudic@tugraz.at

Cyrill Grengg, Graz University of Technology

Gradec, Avstrija. E-mail: cyrill.grengg@tugraz.at

Prenosi

PDF

Izdaja

8th International Conference on Technologies & Business Models for Circular Economy: Conference Proceedings

Strani

91-104

Izdano

21 april 2026

Zbirka

Tehnologije in poslovni modeli za krožno gospodarstvo

Kategorije

Avtorske pravice (c) 2026 University of Maribor

Licenca

Creative Commons licenca

To delo je licencirano pod Creative Commons Priznanje avtorstva-Nekomercialno-Brez predelav 4.0 mednarodno licenco.