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  4. Base case process development for energy efficiency improvement, application to a Kraft pulping mill. Part II: Benchmarking analysis
 
research article

Base case process development for energy efficiency improvement, application to a Kraft pulping mill. Part II: Benchmarking analysis

Mateos-Espejel, Enrique
•
Savulescu, Luciana
•
Marechal, Francois  
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2011
Chemical Engineering Research & Design

A new procedure for benchmarking analysis has been developed to evaluate the energy efficiency of a chemical process. Benchmarking is performed to identify process inefficiencies before developing energy enhancement measures. The new procedure combines typical techniques, such as the comparison with current practice, with utilization of new performance indicators based on exergy and energy content and the targeting by Pinch Analysis and Water Pinch. All process sections and the steam and water utility systems are evaluated. The procedure consists of five phases. In the first phase the data required is compiled. The second phase consists of comparing the energy and water efficiency of the base case to the current practice of the industry. In the third phase, the new energy and exergy content indicators are used to analyze the efficiency of utilities systems and to quantify the heat rejected by the process. In the fourth phase the minimum energy and water requirements are determined. The last phase is a synthesis by which the inefficiencies are identified and guidelines established for process improvement. Interactions between the utilities systems and the process are developed. The procedure has been applied to an operating Kraft pulping mill in Eastern Canada. (C) 2010 The Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved.

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Type
research article
DOI
10.1016/j.cherd.2010.09.013
Web of Science ID

WOS:000292065700020

Author(s)
Mateos-Espejel, Enrique
Savulescu, Luciana
Marechal, Francois  
Paris, Jean
Date Issued

2011

Published in
Chemical Engineering Research & Design
Volume

89

Start page

729

End page

741

Subjects

Benchmarking analysis

•

Energy efficiency

•

Pinch Analysis

•

Water Pinch

•

Exergy analysis

•

Kraft process

•

Pinch Analysis

•

Industrial-Processes

•

Exergy Analysis

•

Paper-Mill

•

Water

•

Integration

•

Minimization

•

Performance

•

Project

•

Systems

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LENI  
SCI-STI-FM  
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/73934
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