https://scholars.lib.ntu.edu.tw/handle/123456789/370561
標題: | Improved operating policy utilizing aerobic operation for fermentation process to produce bio-ethanol | 作者: | Chang, D.-M. Wang, T.-H. Chien, I.-L. Hwang, W.-S. I-LUNG CHIEN |
關鍵字: | Aerobic processes; Cybernetic model; Ethanol; Fermentation; Operating policy; Optimization | 公開日期: | 2012 | 卷: | 68 | 起(迄)頁: | 178-189 | 來源出版物: | Biochemical Engineering Journal | 摘要: | To enhance the productivity of the alcohol fermentation process, combined aerobic and anaerobic fed-batch operation could improve the growth of microbes and also achieve better alcohol production because of well-utilizing the characteristics of the microbial metabolism. Using a realistic model fitted from experimental data, result shows that the highest productivity can be achieved using a proposed fed-batch operation with high glucose concentration. The proposed operating policy combines an initial aerobic operation to increase the biomass formation in the early phase of the fed-batch operation and then followed by the anaerobic operation to accelerate the alcohol production in the later phase. The glucose feeding policy for this optimal fed-batch operation should try to maintain a lower optimal glucose concentration in the fermenter during initial aerobic phase and then to maintain another higher optimal glucose concentration during the next anaerobic phase. Toward the ending of the fed-batch, the glucose concentration in the fermenter should be increased further in order to speed up the productivity of ethanol after the feeding stopped. © 2012 Elsevier B.V. |
URI: | http://www.scopus.com/inward/record.url?eid=2-s2.0-84865302846&partnerID=MN8TOARS http://scholars.lib.ntu.edu.tw/handle/123456789/370561 |
DOI: | 10.1016/j.bej.2012.08.001 | SDG/關鍵字: | Aerobic phase; Aerobic process; Alcohol fermentation; Anaerobic operation; Bio-ethanols; Cybernetic models; Experimental data; Fed batches; Fed-batch operation; Fermentation process; Glucose concentration; Glucose feeding; Microbial metabolism; Operating policies; Realistic model; Ethanol; Fermentation; Fermenters; Glucose; Optimization; Process control; Productivity; Energy policy; aerobic fermentation; alcohol production; article; biomass production; controlled study; fed batch fermentation; fed batch reactor; glucose metabolism; nonhuman; priority journal |
顯示於: | 化學工程學系 |
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