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Investigation of the Cooling System of a Membrane-based Post-combustion Process.
- Source :
- Energy Procedia; May2017, Vol. 114, p666-685, 20p
- Publication Year :
- 2017
-
Abstract
- This paper investigates post-combustion capture in coal-fired power plants equipped with gas separation membranes. Simulations are conducted with the process engineering software, Aspen Plus®, with its Exchanger Design and Rating (EDR) tool utilized for heat exchanger design. The reference power plant chosen for the investigation is the Reference Power Plant North Rhine-Westphalia (RPP-NRW) in Germany. The Polyactive ® membrane developed by the project partner, Helmholtz Zentrum Geesthacht, was used in the simulation. Because the membrane has different properties at different working temperatures in order to reach a higher degree of selectivity and less energy consumption, the flue gas should be cooled to 25 °C. This results in an efficient cooling system for the capture process, which merits further development. A rigorous heat exchanger design leads to a significant increase in the pressure drops at each heat exchanger and hence the pressure ratio required by the compression machines. The energy penalty of the membrane CCS system for 57% and 76% degrees of CO 2 separation was increased from 4.7%-pts to 5.3%-pts and 7%-pts to 8.3%-pts, respectively, after implementing the rigorous heat exchanger design. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 18766102
- Volume :
- 114
- Database :
- Supplemental Index
- Journal :
- Energy Procedia
- Publication Type :
- Academic Journal
- Accession number :
- 124609596
- Full Text :
- https://doi.org/10.1016/j.egypro.2017.03.1210