https://scholars.lib.ntu.edu.tw/handle/123456789/409612
標題: | Design and Economic Evaluation for the Production of Ethyl Lactate via Reactive Distillation Combined with Various Separation Configurations | 作者: | Dai S.-B. Lee H.-Y. Chen C.-L. |
公開日期: | 2019 | 卷: | 58 | 期: | 15 | 起(迄)頁: | 6121-6132 | 來源出版物: | Industrial and Engineering Chemistry Research | 摘要: | Two commercial scale ethyl lactate (L 1 E) production processes are studied in the work. The L 1 E processes can be divided into the reaction part and the separation section. For the reaction part, instead of the three-column design presented by Miller et al.,(1)the proposed configuration only contains two reactive distillation (RD) columns, where the L 1 E product is taken from the first RD column as a sidedraw. This novel improvement can reduce 22.26% of energy consumption in the reaction part. Additionally, disparate separation approaches such as extractive distillation (ED) and the pervaporation (PV) are then implemented to deal with the ethanol/water azeotrope. Economics for alternative configurations are analyzed to find the most competitive and cost-effective process. As a result, the RD with PV design can save at least 31.46% of total annual cost compared to the RD with ED configuration. Copyright ? 2018 American Chemical Society. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/409612 | ISSN: | 08885885 | DOI: | 10.1021/acs.iecr.8b03343 | SDG/關鍵字: | Cost effectiveness; Distillation; Energy utilization; Product design; Alternative configurations; Column design; Cost effective; Economic evaluations; Ethanol/water azeotrope; Extractive distillation; Production process; Reactive distillations; Distillation columns |
顯示於: | 化學工程學系 |
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