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index by sub-area 5.3.2. Strategies for the sustainable and multipurpose utilisation of forest resources; the forestry-wood chain
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Reduction of air emissions at kraft pulp mills

Contract nr: QLK5-CT-1999-01105
Project type: RS (Research and Technological Development Project)
Starting date: 01-01-2000
Duration: 36 months
Total cost: 1,358,310 EUR
EC Contribution: 740,465 EUR
Scientific Officer: Ignacio SEOANE
Research topic: 5.3.2. Strategies for the sustainable and multipurpose utilisation of forest resources; the forestry-wood chain

Abstract:
The ultimate objective is to develop technically feasible methods for the control of air emissions, particularly nitrogen oxide emissions, at kraft pulp mills. This will be achieved by detailed investigations on the formation, distribution, and behaviour of different nitrogen compounds during the main sub-processes of kraft pulping and recovery of pulping chemicals. It will then be investigated how the distribution and behaviour of the nitrogen compounds can be affected by modifying conditions during cooking, black liquor evaporation and combustion, smelt dissolving, and white liquor preparation. Only with all that type of information will it be possible:

1) to create overall millwide nitrogen balances;
2) to evaluate the role of each sub-process as a source of nitrogen chemicals;
3) to evaluate the potential of each sub-process modification as a means of controlling the emissions; and
4) to compare different emission control methods and strategies.


Coordinator
Klaus NIEMELA
Oy Keskuslaboratorio-Centrallaboratorium Ab
Espoo
FINLAND
Tel.: +358 94371519
Fax: +358 9464305
E-mail: klaus.niemela@kcl.fi


Partners
  Urban ANDERSSON
Stiftelsen STFI Skogsindustrins Tekniska Forskning
Stockholm
SWEDEN
Tel.: +46 86767211
Fax: +46 84115518
E-mail: urban.andersson@stfi.se
  Mikko HUPA
Aabo Akademi University
Abo
FINLAND
Tel.: +358 2 2154454
Fax: +358 2 215755
E-mail: mikko.hupa@abo.fi
  Kari SAVIHARJU
Andritz-Ahlstrom Corporation
Karhula
FINLAND
Tel.: +358 5 2245188
Fax: +358 5 2245223
E-mail: kari.saviharju@ahlstrom.com
  Pinho FERREIRA
Stora Celbi, Celulose Beira Industrial, SA
Figueira da Foz
PORTUGAL
Tel.: +351 233 955707
Fax: +351 233 955698
E-mail: pinho.ferreira@storaenso.com