DYNSTART-Project - Subtopic CO2 Capture:
Overview and Short Description

Project title

DYNSTART: Start-up and transient behavior of power plants - Investigation of steam power processes with and without CO2 separation under a high share of fluctuating renewable energy - Subtopic CO2-separation

Funding code: 03ET7060B
Project leader: Prof. Dr.-Ing. Gerhard Schmitz Project coordinator: Thomas Marx-Schubach, M. Sc.
Funding agency: BMWi, EnBW, Uniper, LEAG
Duration: 01.08.2015 – 30.06.2019
Total costs: 243.280 €

Short Description

Within the framework of this research project, the possibilities of steam power plants with and without CO2 separation for the provision of residual load considering the state of the art in residual load operation as well as on startup and shutdown operation shall be examined and limitations of these operating modes shall be demonstrated. The aim is to investigate the potential of modern multi-variable control concepts for improving the control quality. This is to improve the ability of power plants to meet the needs of the grid. The result should allow a clear statement as to whether the considered power plants with and without CO2 separation are able to compensate for supply gaps of the fluctuating power generation and whether the CO2 separation increases the flexibility of the low load operation or the start-up and shutdown process compared to conventional power plants without carbon capture or at least keep the same amount of flexibility. Furthermore, statements are to be made about the profitability of these processes under these boundary conditions.


  • Marx-Schubach, T.; Schmitz, G.: Modeling and simulation of the start-up process of coal fired power plants with post-combustion CO2 capture, International Journal of Greenhouse Gas Control, Elsevier, Volume 87, 2019, Pages 44-57,DOI: 10.1016/j.ijggc.2019.05.003. (Download)
  • Marx-Schubach, T.; Schmitz, G.: Dynamic Simulation and Investigation of the Startup Process of a Postcombustion-Capture Plant, Industrial and Engineering Chemistry Research, Vol. 57 (49), pp. 16751–16762, 2018, American Chemical Society, Washington DC, USA, DOI: 10.1021/acs.iecr.8b03444. (Download)
  • Marx-Schubach, T.; Schmitz, G.: Optimizing the start-up process of post-combustion capture plants by varying the solvent flow rate, 12th Modelica Conference, 15.-17.05.2017, Prag, Tschechien, DOI:10.3384/ecp17132121. (Download)
  • Wellner, K.; Marx-Schubach, T.; Schmitz, G.: Dynamic Behaviour of Coal-Fired Power Plants with Postcombustion CO2 Capture, Industrial and Engineering Chemistry Research, 55 (2016), p. 12038–12045, American Chemical Society Publications, Washington DC, USA, DOI: 10.1021/acs.iecr.6b02752. (Download)

Contact: Thomas Marx-Schubach

Supported by the Federal Ministry for Economic Affairs and Energy