Public Workshop on Carbon Capture for the Cement and Lime Industry hosted by ANICA and AC²OCem Project on 7 - 8 March 2023

The abatement of CO₂ emissions from industry processes is recognised as a key challenge for achieving carbon neutrality by 2050. With regard to CO₂ reduction in the clinker production process, it is now widely acknowledged that the abatement of process-related CO₂ emissions will require the capturing and sequestration or utilisation of CO₂ from cement plants. Against this background the cement industry and research partners have investigated different options for capturing CO₂ from cement flue gases. During the past three years carbon capture options for the cement and lime industry have been further developed in the ACT- funded international research projects AC²OCem and ANICA. In the ANICA project (Advanced Indirectly Heated Calcium Looping Process), efficient concepts for CO₂ capture in cement and lime production plants by means of indirect heating have been developed. The AC²OCem project (Accelerating Carbon Capture using Oxyfuel technology in Cement production) focussed on the further development of oxyfuel technology and its retrofitability.

The consortia of AC²OCem and ANICA projects held a public workshop on carbon capture technologies which was organised by VDZ on 7th and 8th March 2023. Within this workshop results from both projects as well as lighthouse projects in the cement industry were presented and discussed.



7 March 2023

10:00 – 10:30RegisterVDZ
10:30 – 10:45IntroductionK. Fleiger (VDZ)
10:45 –
Pilot testing of the IHCaL processC. Hofmann (TUDA)
11:15 –
Reactor development for IHCaL technology: Heat pipes, two stage calcinerK.Böge (FAU) / 
Myrto Zeneli (CERTH)
11:45 –
LEILAC TechnologyJ. Driver (CALIX)
12:15 – 13:00Lunch Break 
13:00 – 13:30Design of an IHCaL-Demonstration plant at Lime Plant HönnetalM. Greco-Coppi (TUDA) /
A. Dinkova (TKIS)
13:30 – 14:00Oxyfuel burner technology and impact on oxyfuel calcinerC. Kroumian (USTUTT) /
I. Veckenstedt (TKIS)
14:00 – 14:30CI4C Oxyfuel PilotT. Kaschke (CI4C)
14:30 – 15:00Coffee break 
15:00 – 15:30Integration of 1st gen oxyfuel technology to existing cement plantsK. Peloriadi (CERTH)/
F. Carrasco (Heidelberg Materials)
15:30 – 16:00Oxyfuel technology for new built plantsK. Fleiger (VDZ) /
L. Andersson (SINTEF)
16:00 – 16:30Norcem Brevik ProjektA. Burns (Heidelberg Materials)
19:00 – 21:00

Evening event (dinner buffet in VDZ)


8 March 2023

09:00 – 09:30Techno-economic assessment of
IHCaL integration in lime and cement plants
Y. Huang (ULSTER)
09:30 – 10:00TCA and LCAO. Cavalett (NTNU) / 
A. Reyes-Lua (SINTEF)
10:00 – 10:30Ca-Looping, CalBy2030C. Abanades (CSIC)
10:30 – 11:00Coffee break 
11:00 – 11:30Holcim CCUS Projects Lägerdorf / HöverA. Stecher (Holcim)
11:30 – 12:00Summary and end of workshopK. Fleiger (VDZ)
12:00 – 13:00Lunch 

Further information on the ANICA project

The overall aim of the project is to develop concepts of the indirectly heated carbonate looping (IHCaL) process for CO2 capture from lime and cement plants. In the carbonator, the CO2 contained in a flue gas is absorbed by CaO, and the CaCO3 formed herby is regenerated in an indirectly heated calciner. The heat for calcination is produced by combustion of fuel with air in an external combustor and transferred to the calciner by means of heat pipes. The flue gas of the external combustor is directed to the carbonator.

Project website

The following link takes you to the ANICA project website of Technische Universitaet Darmstadt



The German partners of the ANICA project are supported by the Federal Ministry of Economic Affairs and Climate Action on the basis of a decision of the German Bundestag. The project ANICA is funded through the ACT programme (Accelerating CCS Technologies, Horizon2020 Project No 294766). Financial contributions made from the German Federal Ministry of Economic Affairs and Climate Action, the Department for Business, Energy and Industrial Strategy of the United Kingdom and the Greek General Secretariat for Research and Technology.

Person to contact

Do you have questions regarding this project?

Dr Kristina Fleiger

+49(0) 211 45 78 254

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