publication . Article . 2017

Dynamics and control of a heat pump assisted extractive dividing-wall column for bioethanol dehydration

Iulian Patraşcu; Costin Sorin Bildea; Anton A. Kiss;
Open Access English
  • Published: 01 Mar 2017 Journal: Chemical engineering research and design (Transactions of the Institution of Chemical Engineers, part A), volume 119, pages 66-74 (issn: 0263-8762, Copyright policy)
Abstract
Abstract Recently, a novel heat-pump-assisted extractive distillation process taking place in a dividing-wall column was proposed for bioethanol dehydration. This integrated design combines three distillation columns into a single unit that allows over 40% energy savings and low specific energy requirements of 1.24 kWh/kg ethanol. However, these economic benefits are possible only if this highly integrated system is also controllable to ensure operational availability. This paper is the first to address the challenges related to process dynamics and control of this highly integrated system. After showing the control difficulties associated with the original desi...
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Subjects
free text keywords: Bioethanol dehydration, Heat pumps, Integrated design, Process control, Process dynamics, Chemistry(all), Chemical Engineering(all), /dk/atira/pure/subjectarea/asjc/1600, /dk/atira/pure/subjectarea/asjc/1500, Distillation, law.invention, law, Process engineering, business.industry, business, Mechanical engineering, Reboiler, Operational availability, Engineering, Extractive distillation, Heat pump, Specific energy
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