Heat pump systems with mechanical compression for batch distillation

G. Modla and P. Lang

Energy, 2013, vol. 62, issue C, 403-417

Abstract: The operational and economic feasibility of different heat-pump systems with mechanical compression integrated to real batch distillation columns of different sizes is investigated. The systems studied are vapour recompression, vapour compression and vapour recompression with the application of an external heat exchanger. The issues of applying a mechanical compressor for a batch distillation column integrated with heat pump system are discussed. The separation of a low relative volatility mixture is investigated by rigorous simulation performed with a professional flow-sheet simulator. The systems studied are compared by payback times. For the vapour recompression system in the minimal payback time point the batch operation time was significantly longer than that of the conventional batch distillation. The payback time was considerably reduced by applying an external heat exchanger.

Keywords: Batch distillation; Heat-pump; Mechanical compression; Energy saving; Cost calculation (search for similar items in EconPapers)
Date: 2013
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Citations: View citations in EconPapers (8)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:62:y:2013:i:c:p:403-417

DOI: 10.1016/j.energy.2013.09.036

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