https://scholars.lib.ntu.edu.tw/handle/123456789/598211
標題: | A novel energy-efficient process of converting CO2 to dimethyl ether with techno-economic and environmental evaluation | 作者: | Wu T.-W Chien I.-L. I-LUNG CHIEN |
關鍵字: | Alternative fuel;CO2 utilization;Dimethyl ether;Process intensification;PTL;Alternative fuels;Carbon dioxide;Economic analysis;Energy efficiency;Energy utilization;Methanol;Reaction kinetics;CO 2 reduction;Dehydration of methanol;Energy-efficient process;Production process;Renewable hydrogens;Techno-economic and environmental evaluations;Ethers | 公開日期: | 2022 | 卷: | 177 | 起(迄)頁: | 1-12 | 來源出版物: | Chemical Engineering Research and Design | 摘要: | This work aims at discovering the potential of CO2 reduction by implementing techniques of process intensification in the production processes of green alternative fuel, dimethyl ether (DME), from CO2 and renewable hydrogen (H2) with both one-step and two-step configurations. A novel intensified process using the two-step configuration (named as TSHI), which converts CO2 to methanol followed by the dehydration of methanol to DME, is proposed in this study. Developed based on the validated thermodynamic representation and the reaction kinetics expression, TSHI shows the greatest potential of CO2 reduction – 1.704 ton CO2/ton DME – among the five discussed process scenarios. TSHI's energy consumption per unit weight of DME is compared with reported case in the literature, which also uses CO2 and renewable H2 as feedstock in a two-step configuration, and the result has shown an energy saving amount of 23%. Though TSHI exhibits high capability of reducing CO2 amount in the atmosphere, the result of techno-economic analysis showed that there are still rooms for further improvements to produce green alternative fuel cost-effectively. ? 2021 Institution of Chemical Engineers |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85117750961&doi=10.1016%2fj.cherd.2021.10.013&partnerID=40&md5=89db438e5e36bfa40679aaa11ad7cb4d https://scholars.lib.ntu.edu.tw/handle/123456789/598211 |
ISSN: | 02638762 | DOI: | 10.1016/j.cherd.2021.10.013 |
顯示於: | 化學工程學系 |
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