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The Thermodynamics‐Based Benchmarking Analysis on Energy‐Efficiency Performance of CO 2 Capture Technology: Temperature Swing Adsorption as Case Study
Author(s) -
Chen Lijin,
Deng Shuai,
Zhao Ruaikai,
Zhao Li,
Li Shuangjun,
Guo Zhihao,
Lu Yani,
Zhao Jie,
Wu Kailong
Publication year - 2021
Publication title -
energy technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.91
H-Index - 44
eISSN - 2194-4296
pISSN - 2194-4288
DOI - 10.1002/ente.202000756
Subject(s) - benchmarking , exergy , energy consumption , process engineering , efficient energy use , computer science , adsorption , environmental science , thermodynamics , chemistry , engineering , physics , economics , electrical engineering , management , organic chemistry
Based on the principle of thermodynamics, this study proposes a benchmarking analysis framework for evaluating the energy efficiency of carbon capture technology. First, the boundary and elements for the benchmarking framework are defined. Then, the specific heat consumption, coefficient of CO 2 capture performance, and exergy efficiency are calculated as indicators for the benchmarking analysis using a general calculation method. Second, benchmarking analysis is conducted using performance data from the literature for a temperature swing adsorption (TSA) case study. Previous research is used to classify energy consumption into three TSA boundary levels: adsorbent, adsorption chamber, and adsorption system. Third, a more complete benchmarking analysis is presented based on cyclic data from a self‐coded TSA simulation program. The influence of regeneration temperature and regeneration partial pressure on the energy‐efficiency performance is analyzed to demonstrate the viability and fairness of the proposed benchmarking analysis method. Finally, the ways to obtain standard data for the proposed benchmarking analysis via experimental methods are discussed. The proposed method can be used to guide the current design of TSA‐based carbon capture technology toward optimal energy efficiency.