| 초록 |
Fossil fuels such as oil, coal and natural gas still account for a large portion of worldwide electricity generation, emitting a significant amount of CO2. To make fossil-fuel-based electricity more sustainable, it is necessary to capture CO2 effectively and efficiently. Among various options for CO2 capture, post-combustion CO2 capture (PCC) process using aqueous amine, such as monoethanolamine (MEA), is considered to be one of the most promising one, whose major drawback is high energy consumption rate. To improve its energy efficiency, alternative configurations, such as cold solvent split (CSS), lean vapor recompression (LVR), and rich vapor recompression (RVR), have been proposed. However, such configurations have more complex energy integration structures, which may lead to degraded operational flexibility of PCC processes. To this end, in this work, we perform a comparative analysis of various PCC process configurations in terms of energy consumption and operational flexibility. |
