A self-consisted CFD-model for pressurized high temperature black liquor gasification
2008 (English)In: Industrial Combustion, ISSN 2075-3071, E-ISSN 2075-3071, 1-34 p.Article in journal (Refereed) Published
High temperature pressurised black liquor gasification has the potential to significantly improve the efficiency of energy and chemical recovery in the pulping industry. However, a lack of demonstration of the reliability of the process has delayed its large scale industrial implementation. As an important step towards a greater trust in the process reliability, a self-consistent CFD model has been developed. This paper contains a detailed description of the model and a performance prediction of an entrained flow pilot gasifier for a typical operational condition. Emphasis is put on the modelling of input data for the CFD simulation where eight key assumptions form the basis for a consistent model of the black liquor composition. The results for the pilot gasifier performance with typical values for the design variables indicate that the droplet size should be <200 μm and/or have a residence time of 2-3 s for a high level of carbon conversion.
Place, publisher, year, edition, pages
2008. 1-34 p.
Research subject Energy Engineering
IdentifiersURN: urn:nbn:se:ltu:diva-4173Local ID: 211fd580-3a2c-11de-a8ec-000ea68e967bOAI: oai:DiVA.org:ltu-4173DiVA: diva2:977037
Godkänd; 2008; Bibliografisk uppgift: Paper id:: 200801; 20090506 (ysko)2016-09-292016-09-29Bibliographically approved