A hybrid technology combining heat pump and thermally coupled distillation sequence for retrofit and debottlenecking

Title
A hybrid technology combining heat pump and thermally coupled distillation sequence for retrofit and debottlenecking
Author(s)
이문용구웬롱
Keywords
DIVIDING-WALL COLUMNS; PROCESSING CAPACITY; DESIGN; OPTIMIZATION
Issue Date
201503
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Citation
ENERGY, v.81, pp.103 - 110
Abstract
Increasing the capacity of an existing distillation process has been a major focus of the chemical process industry. On the other hand, entrainment flooding can occur as a result, which can create a bottleneck in the distillation process. This paper reports the results of a techno-economic feasibility study to debottleneck the distillation column using a proposed hybrid process combining a heat pump and thermally coupled distillation sequence. Fractional utilization of the area was used to identify flooding problems in the column as well as how much area is available for vapor flow on an existing stage. A heat pump aided thermally coupled distillation sequence (HPTCDS) was designed and optimized using a response surface methodology. Two cases were examined to test the proposed sequence. The results showed that the proposed sequence can achieve significant energy savings and remove the bottleneck problem. (C) 2014 Elsevier Ltd. All rights reserved.
URI
http://hdl.handle.net/YU.REPOSITORY/33122http://dx.doi.org/10.1016/j.energy.2014.11.056
ISSN
0360-5442
Appears in Collections:
공과대학 > 화학공학부 > Articles
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