期刊
ENERGY
卷 238, 期 -, 页码 -出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.energy.2021.121864
关键词
Techno-economic assessment; Internal heat integration; Adsorption-based CO2 capture
资金
- National Research Foundation of Korea (NRF) - Ministry of Science and ICT [2015M3D3A1A01064929]
The study presents a techno-economic analysis of four different solid sorbent processes for post-combustion CO2 capture, showcasing the feasibility of achieving low CO2 capture costs through internal heat integration and enhanced CO2 cyclic capacity.
An amine-functionalized solid sorbent-based process with heat integration is considered an energy -efficient method for large-scale CO2 capture. Herein, we propose a techno-economic analysis (TEA) of four different solid sorbent processes for post-combustion CO2 capture with internal heat integration as an alternative to the conventional amine scrubbing process. Our proposed processes are fluidized bed adsorption, fixed bed adsorption, moving bed adsorption, and rapid thermal swing adsorption and involve continuous adsorption, heating, desorption, and cooling. In addition, the four processes use an amine-functionalized solid sorbent, SiO2/0.37 EB-PEI, which was transformed into powder, pellet, and hollow fiber to reflect the characteristics of each process. The proposed processes enable internal heat integration by recovering sensible heat from the cooling process and further enhance the CO2 cyclic capacity of amine-functionalized solid sorbents with high CO2 recovery by performing adsorption heat removal. Most importantly, our TEA based on rigorous mathematical modeling revealed that the CO2 capture cost of the four solid sorbent-based processes was approximately 48.1-75.2 $/t-CO2, with a 45%-58% sensible heat recovery. Such a low CO2 capture cost is comparable to that of the most mature amine-based absorption process (62.8 $/t-CO2), owing to a combination of internal heat integration and enhanced CO2 cyclic capacity. The results support the feasibility of four solid sorbent-based processes for post-combustion CO2 capture. (c) 2021 Published by Elsevier Ltd.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据