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

A1 Journal article (refereed)


Internal Authors/Editors


Publication Details

List of Authors: Cataldo De Blasio, Jarl Ahlbeck, Frej Bjondahl
Publication year: 2008
Journal: Computer Aided Chemical Engineering
Journal acronym: COMPUT-AIDED CHEM EN
Volume number: 25
Start page: 1095
End page: 1100
Number of pages: 6
ISBN: 978-0-444-53227-5
ISSN: 1570-7946


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.


Keywords

desulfurization, limestone, mathematical modeling, reaction rate

Last updated on 2019-14-10 at 05:48