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Technology Collaboration Programme by IEA

Deployment of CCS in the Cement Industry

Technical Report

1 December 2013

Capture

Kristina Koring, Volker Hoenig, Helmut Hoppe, Johannes Horsch, Christian Suchak, Verena Klevenz, Bernhard Emberger

Citation: IEAGHG, "Deployment of CCS in the Cement Industry", 2013-19, December 2013.

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Publication Overview

The study focuses on the following tasks: 1. Review current practice in energy efficiency improvement and fuel and clinker substitution practices in relation to reduction of CO2 emissions in the cement sector. 2. Engage with key stakeholders with the aim of identifying the key barriers to the demonstration of CCS in the cement sector. 3. Review the current state of development of potential CCS technologies evaluated for the cement industry, particularly oxyfuel and post-combustion capture and review current CCS activities initiated and led by the cement industry. 4. Review policy and government initiatives to support the application of CCS to the cement sector

Publication Summary

  • Established techniques can be used to reduce CO2 emissions from cement production, including increased energy efficiency, use of alternative raw materials and fuels and reducing the clinker:cement ratio. However, CCS will be needed to achieve deep emission reductions.
  • The preferred techniques for capturing CO2 in cement plants are oxyfuel and post combustion capture. Pre-combustion capture is at a disadvantage because it is unable to capture the large amount of CO2 produced by carbonate decomposition.
  • Oxyfuel technology is in general expected to have a lower energy consumption and costs than post combustion capture using liquid solvent scrubbing.
  • Some pilot plant projects for post combustion capture at cement plants are underway but oxyfuel technology for cement plants is still at the laboratory stage of development.
  • A survey of the cement industry showed that most of the respondents think that CCS is relevant to them and they are aware of research projects, and half are involved in CCS activities. More than half of the respondents would contribute financially to CCS research but only a third would be willing to contribute to pilot or demonstration plants due to high costs.
  • With the current legal and economic conditions CCS would impair the competiveness of cement production, which will inhibit development and application of CCS in the cement sector

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