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Simulation of ash-forming compounds in the kraft recovery boiler

Tutkimustuotosvertaisarvioitu

Yksityiskohdat

AlkuperäiskieliEnglanti
Otsikko10th European Conference on Industrial Furnaces and Boilers
JulkaisupaikkaPorto, Portugal
Sivumäärä10
ISBN (elektroninen)978-972-99309-7-3
TilaJulkaistu - 2015
OKM-julkaisutyyppiA4 Artikkeli konferenssijulkaisussa
TapahtumaEUROPEAN CONFERENCE ON INDUSTRIAL FURNACES AND BOILERS -
Kesto: 1 tammikuuta 1900 → …

Conference

ConferenceEUROPEAN CONFERENCE ON INDUSTRIAL FURNACES AND BOILERS
Ajanjakso1/01/00 → …

Tiivistelmä

This paper presents a summary of the doctoral dissertation titled “Modeling Fume Particle Dynamics and Deposition with Alkali Metal Chemistry in Kraft Recovery Boilers”. In the thesis, a computational model was developed and used to simulate the behavior of alkali metal compounds in kraft recovery boilers. The model combines, for the first time, the methods of CFD (Computational Fluid Dynamics), equilibrium chemistry, and fine particle dynamics to model the formation and deposition of fume particles. Fume particles are below 1 μm in diameter and form through the condensation of the alkali metal compounds. The model has been partially validated in an operating recovery boiler in terms of fume particle composition, but the modeling results also shed light on processes that cannot be investigated through experimental methods alone. For example, the modeling results indicate that thermophoresis is the main factor leading to fume deposit formation.

Tutkimusalat

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