Mathematical modeling of limestone dissolution in batch stirred tank reactors in presence of a diluted strong acid

Cataldo De Blasio, Jarl Ahlbeck, Frej Bjondahl

Research output: Contribution to journalArticleScientificpeer-review

Abstract

The rate of limestone dissolution determines the need for limestone excess in flue gas desulfurization processes and therefore affects the cost of makeup and waste disposal. For this reason a better understanding of the limestone performance toward desulfurization can have reasonable economical effects. Utilizing a good mathematical model it is possible to optimize the parameters involved in flue gas desulfurization. In the present work a mathematical model describing the transport phenomena occurring in limestone-strong acid reaction in small BSTRs (Batch Stirred Tank Reactors) was developed and evaluated. The particle size distribution and the chemical reactivity were considered as primary factors determining the volume variation of the natural limestone. The model together with the experimental procedure provides a new tool for measuring the properties of chemicals used in flue gas desulfurization FGD.

Original languageEnglish
Pages (from-to)1095-1100
Number of pages6
JournalComputer Aided Chemical Engineering
Volume25
DOIs
Publication statusPublished - 2008
MoE publication typeA1 Journal article-refereed

Keywords

  • desulfurization
  • limestone
  • mathematical modeling
  • reaction rate

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