Energetic evaluation of a power plant integrated with a piperazine-based CO2 capture process
article
Extensive research efforts have been applied to obtain more efficient and less cost-intensive absorption-based processes and solvent systems for CO2 capture during the last 15–20 years. High concentrated aqueous solutions of piperazine (PZ) have been suggested as a good replacement for the current bench-mark solvent mono-ethanolamine (MEA). So far, the research on concentrated PZ solutions has mainly focused on the development and evaluation of various configurations for the post-combustion CO2 capture process. The present paper studies the integration of a configuration based on high-pressure flash regeneration with the upstream power plant. The main focus is on the overall energy performance, but aqualitative analysis of the effect of flexible operation is added as this is important for the optimization of the total plant. A power plant integrated with the optimal PZ-based capture plant is found to have a net electric efficiency of 37.4%, which is 7.2% less than the reference power plant without CO2 capture. The efficiency penalty when using an MEA-based capture plant including lean-vapour compression is 9.1%.
TNO Identifier
954578
ISSN
17505836
Source
International Journal of Greenhouse Gas Control, 28(1), pp. 343-355.
Publisher
Elsevier
Place of publication
Amsterdam
Pages
343-355
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