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Revista de Chimie (Rev. Chim.), Year 2009, Volume 60, Issue 10,





LOREDANA DRAGHICIU, RALUCA ISOPESCU, ALEXANDRU WOINAROSCHY
Capital Cost Reduction by the Use
of Divided Wall Distillation Column

Abstract:

The dividing wall distillation column which is a fully thermal integrated system also brings significant capital cost reduction. The analysis of cost reduction is performed in the frame of the commercial simulator HYSYSTM and of a specialized cost evaluator software. A case study for a common hydrocarbon mixture separation in oil refiners demonstrates that the heat transfer units reduction and the use of a single column shell provide a decrease up to 23 % of the cost compared to a classical two column separation sequence. Alike the energy efficiency of the dividing wall distillation column, the capital cost reduction is more important for the case when the middle component is in a great amount in the feed. Keywords: divided wall distillation column, capital cost evaluation, hydrocarbon separation


Issue: 2009, Volume 60, Issue 10
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