Enhancing CO 2 Capture Efficiency: Advanced Modifications of Solvent-Based Absorption Process—Pilot Plant Insights

Adam Tatarczuk (), Tomasz Spietz, Lucyna Więcław-Solny, Aleksander Krótki, Tadeusz Chwoła, Szymon Dobras, Janusz Zdeb and Marek Tańczyk
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Adam Tatarczuk: Institute of Energy and Fuel Processing Technology, 41-803 Zabrze, Poland
Tomasz Spietz: Institute of Energy and Fuel Processing Technology, 41-803 Zabrze, Poland
Lucyna Więcław-Solny: Institute of Energy and Fuel Processing Technology, 41-803 Zabrze, Poland
Aleksander Krótki: Institute of Energy and Fuel Processing Technology, 41-803 Zabrze, Poland
Tadeusz Chwoła: Institute of Energy and Fuel Processing Technology, 41-803 Zabrze, Poland
Szymon Dobras: Institute of Energy and Fuel Processing Technology, 41-803 Zabrze, Poland
Janusz Zdeb: Tauron Inwestycje sp. z o.o., 42-504 Będzin, Poland
Marek Tańczyk: Institute of Chemical Engineering, Polish Academy of Sciences, 44-100 Gliwice, Poland

Energies, 2025, vol. 18, issue 9, 1-28

Abstract: Since fossil fuels still dominate industry and electricity production, post-combustion carbon capture remains essential for decarbonizing these sectors. The most advanced technique for widespread application, particularly in hard-to-abate industries, is amine-based absorption. However, increasing energy efficiency is crucial for broader implementation. This study presents pilot-scale results from the Tauron Power Plant in Poland using a mobile CO 2 capture unit (1 TPD). Two innovative process modifications—Split Flow (SF) and Heat Integrated Stripper (HIS)—were experimentally investigated; they achieved a 10% reduction in reboiler heat duty, reaching 2.82 MJ/kg CO2 , along with a 36% decrease in overall heat losses and up to a 28% reduction in cross-flow heat exchanger duty. The analysis highlights both the advantages and challenges of these modifications. SF is easier to retrofit into existing plants, whereas the HIS requires more extensive modifications in the stripper section, thus making HIS more cost-effective for new installations. Moreover, as heat consumption constitutes the primary operational cost, even a moderate reduction in heat duty can lead to significant economic benefits. The HIS also offers substantial potential for thermal integration in industries with available waste heat streams. The pilot data underwent validation procedures to ensure reliability, which provides a robust foundation for process modeling, optimization, and scaling for industrial applications.

Keywords: energy efficiency; split flow; heat integrated stripper; pilot-scale CO 2 capture; amine-based absorption (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2025
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