Cyclic distillation technology – a mini‐review |
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Authors: | Costin S Bîldea C?t?lin P?tru? Sten Bay Jørgensen Jens Abildskov Anton A Kiss |
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Affiliation: | 1. University “Politehnica” of Bucharest, 011061 Bucharest, Romania;2. CAPEC‐PROCESS, Department of Chemical and Biochemical Engineering, Building 229, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark;3. AkzoNobel – Supply Chain, Research & Development, Process Technology SRG, 7418 AJ Deventer, The Netherlands;4. Sustainable Process Technology Group, Faculty of Science and Technology, University of Twente, 7500 AE, Enschede, The Netherlands |
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Abstract: | Process intensification in distillation systems has received much attention during past decades, with the aim of increasing both energy and separation efficiency. Various techniques, such as internal heat‐integrated distillation, membrane distillation, rotating packed bed, dividing‐wall columns and reactive distillation were studied and reported in the literature. All these techniques employ the conventional continuous counter‐current contact of vapor and liquid phases. Cyclic distillation technology is based on an alternative operating mode using separate phase movement which leads to key practical advantages in both chemical and biochemical processes. This article provides a mini‐review of cyclic distillation technology. The topics covered include the working principle, design and control methods, main benefits and limitations as well as current industrial applications. Cyclic distillation can be rather easily implemented in existing columns by simply changing the internals and the operating mode, thus bringing new life to old distillation towers by significantly increasing the column throughput, reducing the energy requirements and offering better separation performance. © 2016 Society of Chemical Industry |
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Keywords: | cyclic distillation periodic operation process design control applications |
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