Initial evaluation of the impact of post-combustion capture of carbon dioxide on supercritical pulverised coal power plant part load performance

Hannah Chalmers*, Jon Gibbins

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Pulverised coal-fired plants often play an important role in electricity grids as mid-merit plants that can operate flexibly in response to changes in supply and demand. As a consequence, these plants are required to operate over a wide output range. This paper presents an initial evaluation of some potential impacts of adding post-combustion CO2 capture on the part load performance of pulverised coal-fired plants. Preliminary results for ideal cases analysed using a simple high-level model indicate that post-combustion CO2 capture could increase the options available to power plant operators. In particular, solvent storage could allow higher effective plant load factors to be achieved to assist with capital recovery while still permitting flexible operation for grid support. A number of areas for more detailed analysis are identified.

Original languageEnglish
Pages (from-to)2109-2123
Number of pages15
JournalFuel
Volume86
Issue number14 SPEC. ISS.
DOIs
Publication statusPublished - Sep 2007

Keywords

  • Fossil-fired power plant flexibility
  • Part load performance
  • Post-combustion CO capture

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