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CFD modelling of black liquor gasification: identification of important model parameters
Energy Technology Centre, Piteå.
Chemrec AB, c/o ETC, Piteå.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Energy Science.ORCID iD: 0000-0002-6958-5508
2007 (English)In: Fuel, ISSN 0016-2361, E-ISSN 1873-7153, Vol. 86, no 12-13, p. 1918-1926Article in journal (Refereed) Published
Abstract [en]

Pressurized high temperature black liquor gasification has the potential to significantly improve the efficiency of energy and chemical recovery in the pulping industry and to enable new processes, e.g. production of renewable automotive fuels from the formed synthesis gas. However, the current process is still considered as novel and the interest in validated computer models for scale-up and process optimisation is large. In this paper a sensitivity analysis on the four most important model parameters in the pre-processing ‘droplet composition model' for a proposed CFD model has been performed. It was shown that careful measurements of the amount of sulphur released to the gas phase as H2S during devolatilization and the concentration ratio of Na2S and Na2SO4 in the black liquor char under real process conditions are of great importance for calibration of the model.

Place, publisher, year, edition, pages
2007. Vol. 86, no 12-13, p. 1918-1926
National Category
Energy Engineering
Research subject
Energy Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-4373DOI: 10.1016/j.fuel.2006.12.015Local ID: 25119b60-3a27-11de-a8ec-000ea68e967bOAI: oai:DiVA.org:ltu-4373DiVA: diva2:977238
Note
Validerad; 2007; 20090506 (ysko)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2017-11-24Bibliographically approved

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