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- W4385485767 abstract "Bioenergy from biomass wastes with carbon capture and storage (CCS) is an important way to compensate for hard-to-abate emissions and collaborate with decarbonizing the energy industry. This work evaluates a corncob-fired power generation with CCS regarding overall energy efficiency in two process alternatives: (a) post-combustion CO 2 capture by an aqueous blend of methyl-diethanolamine and piperazine; and (b) oxy-combustion coupled to state-of-art air separation unit. The alternatives are simulated in Aspen HYSYS and compared with a conventional plant to evaluate the energy penalty of capturing CO 2 . The lean solvent composition is optimized for the lowest regeneration heat demand (2.92 GJ/tCO 2 ). Post-combustion capture designed for 90% CO 2 abatement presents an efficiency penalty of 7.96%LHV. In contrast, Oxy-combustion has zero CO 2 emissions and outperforms Post-combustion with a lower penalty of 6.77%LHV, given a chance to have oxygen supplied at an energy cost of 139 kWh/tO 2 . To render Post-combustion the most efficient route, it would be necessary to have its reboiler heat ratio reduced to 2.30 GJ/tCO 2 ." @default.
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- W4385485767 date "2023-01-01" @default.
- W4385485767 modified "2023-09-23" @default.
- W4385485767 title "Enhancing Efficiency of Corncob-Fired Power Generation with Carbon Capture and Storage" @default.
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- W4385485767 doi "https://doi.org/10.1051/e3sconf/202340703001" @default.
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