|
Title:
|
|
Design of a commercial-scale heat-integrated distillation column based on plate-fin heat exchangers
|
|
|
|
Author(s):
|
|
|
|
|
|
Published by:
|
Publication date:
|
|
ECN
Energy Efficiency in Industry
|
20-12-2007
|
|
|
|
ECN report number:
|
Document type:
|
|
ECN-M--07-118
|
Conference Paper
|
|
|
|
Number of pages:
|
Full text:
|
|
9
|
Download PDF
|
Presented at: 6th International Conference on Enhanced, Compact and Ultra-Compact Heat Exchangers: Science, Engineering & Technology, Potsdam, Germany, 17-21 september 2007.
Abstract:
The Heat-Integrated Distillation Column (HIDiC), in which heat is transferred directly from the rectification section to the stripping section of the column, has higher energy efficiency than either a conventional distillation column or a vapour-recompression column. Although the HIDiC concept has been researched for a number of years, it has not yet been commercialised. However, a HIDiC based on a plate-fin heat exchanger has advantages of compactness, a closer temperature approach, modular structure, flexibility in design, and low pressure drop.
A case study for a commercial-scale propane-propene splitter has shown that the plate-fin HIDiC can save 35% in primary energy and 10% in Total Annual Cost compared to a vapour-recompression column. Savings compared to a conventional distillation column are even higher.
Back to List