Process control analysis for intensified bioethanol separation systems
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- 作者：Juan Gabriel Segovia-Hern ; ez ; Mar铆a V谩zquez-Ojeda ; Fern ; o I. G贸mez-Castro ; C茅sar Ram铆rez-M谩rquez ; Massimiliano Errico ; Stefania Tronci ; Ben-Guang Rong
- 关键词：Energy savings ; Control properties ; Bioethanol ; Intensified process
- 刊名：Chemical Engineering and Processing
- 出版年：January, 2014
- 年：2014
- 卷：75
- 期：Complete
- 页码：119-125
- 全文大小：984 K
文摘
The purification of bioethanol is traditionally performed by extractive distillation using three column sequences. In the present work new arrangements composed of two columns are considered for the analysis of control properties. The control properties study was based on the controllability properties under open loop operation, followed by the dynamic behavior for common industrial operating disturbances. Simulation results were analyzed by the singular value decomposition technique. The results from the theoretical control properties indicate that the presence of a side stream in the extractive distillation sequences does not necessarily provide operational disadvantages. The results also suggest that control properties are ruled by the kind of solvent used. The best performances were obtained when glycerol is used as entrainer.