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Cost-efficient CO2-reduction in the pulp and paper industry: a case study
Department of Heat and Power Technology, Chalmers University of Technology, Gothenburg.
Linköping University, Department of Management and Engineering, Energy Systems. Linköping University, The Institute of Technology.
Department of Heat and Power Technology, Chalmers University of Technology, Gothenburg.
Linköping University, Department of Management and Engineering, Energy Systems. Linköping University, The Institute of Technology.
2002 (English)In: International Conference on Sustainable Energy Technologies, 2002, Porto, Portugal: FEUP , 2002, EES58- p.Conference paper, Published paper (Refereed)
Abstract [en]

It is generally accepted that human activities have a large influence on global climate. In order to minimize human impact on global warming, regulations and agreements may be introduced for all CO2‑generating sectors. Therefore, measures to reduce CO2-emissions will be of importance to the industrial sector. Strategic decisions and long-term thinking are needed to comply with the regulations and to fulfil the agreements.

The pulp and paper industry is an energy intensive sector with relatively large potentials to accomplish energy efficiency measures that result in reduction of CO2-emissions. To settle the cost-effectiveness for each measure a number of system parameters have to be considered, such as investment costs, boundary conditions and reference systems.

This paper presents two methods, pinch technology and the MIND method. These methods are used for analysis of industrial energy systems considering different parameters and aspects. Pinch technology is used for thermodynamic and economic evaluation of process integration possibilities and the MIND method is used for strategic evaluation of different energy efficiency measures. Foundation for long-term decision-making can be obtained by co-ordinating the results from the two methods. In this paper, cost-effectiveness has been determined for different energy efficiency measures. The measures are non-conventional evaporation and heat pumping. The case studied is from a Swedish board mill. Economic potentials and consequences for these CO2-reducing measures are discussed from both an industrial and a societal perspective.

Place, publisher, year, edition, pages
Porto, Portugal: FEUP , 2002. EES58- p.
Keyword [en]
MIND, Pinch, Industrial energy systems, CO2, pulp and paper
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-39952Local ID: 51858OAI: oai:DiVA.org:liu-39952DiVA: diva2:260801
Conference
1st International Conference on Sustainable Energy Technologies, 12-14 June 2002, Porto, Portugal
Available from: 2009-10-10 Created: 2009-10-10 Last updated: 2013-02-11
In thesis
1. Analysing strategic energy-related investments in process industries: applied studies at a pulp and board mill
Open this publication in new window or tab >>Analysing strategic energy-related investments in process industries: applied studies at a pulp and board mill
2002 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

The potential to reduce energy demand in industrial applications is often substantiaL Since energy cost represents a considerable share of the value added in several categories of process industries, a great potential exists for cutting costs through investment, for instance in energy efficiency improvements. However, industrial energy systems form complex relations not only within the industrial unit, but also in the interaction with their surroundings. Consequently, issues such as energy prices and governmental regulations influence the systems to varying extents. At the moment environmental issues, as manifested in the Kyoto agreement, and the new common European electricity market are in focus and are likely to influence the different boundary conditions that face European industries. Therefore, when major investments are to take place, changes in such boundary conditions need to be considered.

Analysing potential investments in industrial energy systems require advanced methods that manage these complex relations and interactions and concurrently consider technical, economic and environmental issues. The purpose of the thesis is to develop and co-ordinate such methods and apply them to investments in an existing process industry. A method based on optimisation is used as the main tool for analysis. Other methods are applied as complements, for example to manage different aggregation levels and to facilitate sensitivity analyses.

A pulp and board mill in central Sweden is used as a case study, where investments and changes in the utility systems and the main processes are analysed. These investments are subject to changes in boundary conditions and other mill-specific changes, showing both potentially interesting investments, and also the extensive influence of different boundary conditions. It is also shown that the methods used are appropriate for the purpose at hand.

Place, publisher, year, edition, pages
Linköping: Linköpings universitet, 2002. 96 p.
Series
Linköping Studies in Science and Technology. Dissertations, ISSN 0345-7524 ; 791
Keyword
MIND, Industrial energy systems, Investment, pulp and paper
National Category
Engineering and Technology
Identifiers
urn:nbn:se:liu:diva-39957 (URN)51863 (Local ID)91-7373-476-4 (ISBN)51863 (Archive number)51863 (OAI)
Public defence
2002-12-11, Planck's hörsal, Fysikhuset, Linköpings Universitet, Linköping, 10:15 (Swedish)
Opponent
Available from: 2009-10-10 Created: 2009-10-10 Last updated: 2013-02-11

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Karlsson, MagnusSöderström, Mats

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