Review of Retrofitting Distillation Columns Using Thermally Coupled Distillation Sequences and Dividing Wall Columns to Improve Energy Effciency

Title
Review of Retrofitting Distillation Columns Using Thermally Coupled Distillation Sequences and Dividing Wall Columns to Improve Energy Effciency
Author(s)
이문용구웬롱
Keywords
PRESSURE-SWING-DISTILLATION; SELF-HEAT RECUPERATION; PUMP ASSISTED DISTILLATION; EXTRACTIVE-DISTILLATION; AZEOTROPIC DISTILLATION; INDUSTRIAL DISTILLATION; REACTIVE-DISTILLATION; TERNARY MIXTURES; PART 2; MULTICOMPONENT DISTILLATION
Issue Date
201402
Publisher
SOC CHEMICAL ENG JAPAN
Citation
JOURNAL OF CHEMICAL ENGINEERING OF JAPAN, v.47, no.2, pp.87 - 108
Abstract
Distillation is a common energy-intensive process. Accordingly, it is the first process to be addressed to improve the energy effciency over both the short-and long-term. Recent studies and industrial applications have proven that advanced process integration and process intensification techniques such as the use of a thermally coupled distillation sequence (TCDS) and a dividing wall column (DWC) require the lowest amount of energy for the separation of mixtures into pure product streams. This paper reviews some energy-effcient distillation technologies that can be used in a retrofit design. The research on and implementation of retrofits using a TCDS and DWC are reviewed. This report proposes coupled schemes as alternatives to using a Petlyuk column that do not have the classical problem of controlling the vapor transfer from one column to another and have not previously been proposed for retrofits. These schemes are expected to make significant contributions to improving the energy effciency and mitigating CO2 emission in the retrofitting of distillation systems. The authors evaluated a solution for retrofitting azeotropic and extractive distillation systems. Various issues such as the constraints, techno-economic analysis, controllability, and operability are discussed briefly to provide more insight into the application of TCDS and DWC technologies in the retrofit.
URI
http://hdl.handle.net/YU.REPOSITORY/33250http://dx.doi.org/10.1252/jcej.13we067
ISSN
0021-9592
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공과대학 > 화학공학부 > Articles
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