Zusammenfassung
Within the last decades a continuous tightening of environmental regulations has been observed in several countries around the world. These include restriction of anthropogenic CO2 emissions, since they are considered responsible for intensifying global warming. Coal-fired power plants represent a good possibility for capturing CO2 before it is emitted in the atmosphere, thereby contributing to combat global warming. This work focuses on reducing the CO2 emissions of such a power plant by 90 %. For this purpose a hard coal power plant is retrofitted with a chemical absorption using different solutions of piperazine promoted potassium carbonate. The resulting power plant’s efficiency losses have been accounted for. A comparison of different scenarios such as the variation of operating parameters offer an insight in detecting suitable operating conditions that will allow to minimize Efficiency penalties. Simulation details are provided along with a technical and an economic Analysis.
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Schlagworte
CO2 capture chemical Absorption post-combustion CCS Simulation absorber / intercooling- 1–17 1 Introduction 1–17
- 70–142 4 Technical analysis 70–142
- 163–167 6 Summary 163–167
- 168–170 A Appendixes 168–170
- 171–184 List of references 171–184
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- „... would provide this energy, which implies that the power plant’s net electric work would be reduced as ...” „... . Produced heat is used to evaporate water at supercritical pressure (>250 bar). Steam drives a turbine ...” „... output of a power plant indicates available electric energy of a power plant, after the station’s supply ...”
- „... (commercially available) amine developed by Kansai Electric Power Company (KEPCO) and Mitsubishi Heavy ...” „... increasing the temperature. Once CO2 has been driven off, the precipitated salt redissolves. Brouwer, et al ...” „... electric efficiency. They determined the ammonia concentration to be a critical parameter causing the ...”