Mineral Trapping of CO2 for Cement Industry De-Carbonization

8 Pages Posted: 15 Apr 2019 Last revised: 23 Apr 2019

See all articles by Mai Uibu

Mai Uibu

Tallinn University of Technology (TUT) - Department of Materials and Environmental Technology

Mustafa Cem Usta

Tallinn University of Technology (TUT) - Department of Materials and Environmental Technology

Kadriann Tamm

affiliation not provided to SSRN

Anastassia Žuravljova

affiliation not provided to SSRN

Juha Kallas

Tallinn University of Technology (TUT) - Department of Materials and Environmental Technology

Rein Kuusik

Tallinn University of Technology (TUT) - Department of Materials and Environmental Technology

Andres Trikkel

Tallinn University of Technology (TUT) - Department of Materials and Environmental Technology

Date Written: October 21, 2018

Abstract

Mineralization of gaseous carbon dioxide by alkaline industrial waste, as sorbents, is a promising carbon capture and storage method. The Estonian energy sector is based on local oil shale. In addition to substantial CO2 emissions, the latter is connected with the formation of huge amounts of ash. Retention capacity of this ash is about 0.1 t of CO2 per t of ash.

In addition, concrete demolition wastes, specifically the fine fractions rich in calcium hydroxide and calcium silica hydrate, is considered to be good sorbents for CO2 sequestration, forming also thermodynamically stable calcium carbonate (CaCO3). The objective of the research is to study burnt oil shale and concrete demolition wastes as sorbents in CO2 mineralization process in order to identify the most promising materials for CO2 capture as well as to specify reaction kinetics and operating parameters for a scale up. Results indicated that selected types of burnt oil shale could be used as effective binders in the proposed CO2-mineralization system. The CO2 uptake was mainly attributed by the free lime content, which is relatively high (10-15%) in burnt oil shale, but nonexistent in concrete demolition wastes. A kinetic model was built to predict the composition of solid and gas phase at given operating conditions. The re-carbonated materials could in turn be used in concrete application, so the CO2 captured from the Ca-looping installation in Vernasca Cement Plant could be trapped and utilized in the same plant.

Keywords: Mineralisation, cement, de-carbonization, GHGT-14

JEL Classification: Q53, Q54

Suggested Citation

Uibu, Mai and Usta, Mustafa Cem and Tamm, Kadriann and Žuravljova, Anastassia and Kallas, Juha and Kuusik, Rein and Trikkel, Andres, Mineral Trapping of CO2 for Cement Industry De-Carbonization (October 21, 2018). 14th Greenhouse Gas Control Technologies Conference Melbourne 21-26 October 2018 (GHGT-14) . Available at SSRN: https://ssrn.com/abstract=3365766

Mai Uibu (Contact Author)

Tallinn University of Technology (TUT) - Department of Materials and Environmental Technology ( email )

Ehitajate tee 5
Tallinn, 19086
Estonia

Mustafa Cem Usta

Tallinn University of Technology (TUT) - Department of Materials and Environmental Technology

Ehitajate tee 5
Tallinn, 19086
Estonia

Kadriann Tamm

affiliation not provided to SSRN

No Address Available

Anastassia Žuravljova

affiliation not provided to SSRN

No Address Available

Juha Kallas

Tallinn University of Technology (TUT) - Department of Materials and Environmental Technology

Ehitajate tee 5
Tallinn, 19086
Estonia

Rein Kuusik

Tallinn University of Technology (TUT) - Department of Materials and Environmental Technology

Ehitajate tee 5
Tallinn, 19086
Estonia

Andres Trikkel

Tallinn University of Technology (TUT) - Department of Materials and Environmental Technology

Ehitajate tee 5
Tallinn, 19086
Estonia

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