https://scholars.lib.ntu.edu.tw/handle/123456789/625967
標題: | Rigorous simulation and techno-economic evaluation on the hybrid membrane/cryogenic distillation processes for air separation | 作者: | Chen, S.-J. BOR-YIH YU |
關鍵字: | Air separation; Cryogenic distillation; Membrane; Oxygen; Process simulation; Techno-economic evaluation; ECONOMIC-EVALUATION; GAS PERMEATION; UPPER-BOUNDS; POWER-PLANT; MEMBRANE; DESIGN; POLYMERS; CAPTURE | 公開日期: | 2021 | 出版社: | ELSEVIER | 卷: | 127 | 起(迄)頁: | 56 | 來源出版物: | Journal of the Taiwan Institute of Chemical Engineers | 摘要: | Background: At present, air separation has been mostly realized through cryogenic distillation, which uses a coupled process configuration and is very energy intensive. For the purpose of improving, this work proposes hybrid membrane/cryogenic distillation processes for producing multiple high/ultra-high purity products (i.e. 99.999 mol% nitrogen, 99.9 mol% oxygen and a 99.9 mol% nitrogen). Method: Rigorous simulation and techno-economic evaluation on the different hybrid membrane/cryogenic distillation processes are performed. Nine membrane samples with different oxygen permeability and selectivity are used for integration in two different coupling structures. Aspen Plus V11 and Aspen Custom Modeler are used for development of process and membrane, respectively. Significant Findings: Firstly, the internal rate of return of the 18 hybrid membrane/cryogenic distillation processes lie in between 11.30% and 14.17% (standalone cryogenic distillation: 14.93%), which could be economically attractive. Secondly, further discovering of membranes with high oxygen permeability is suggested, as using it for integration leads to promising economic performance. Lastly, the internal rate of returns for the best hybrid membrane/cryogenic distillation processes are around 8∼9% without considering the benefit from the secondary high-purity nitrogen (interest rate: 3.52%). It indicates the economic feasibility if the production focuses only on high/ultra-high purity products. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/625967 | ISSN: | 18761070 | DOI: | 10.1016/j.jtice.2021.08.001 |
顯示於: | 化學工程學系 |
在 IR 系統中的文件,除了特別指名其著作權條款之外,均受到著作權保護,並且保留所有的權利。