Modeling and Analysis of SO₂ Emissions under Fast Fluidized Bed Conditions Using One Dimensional Model

Khurram Shahzad, Mahmood Saleem, Moinuddin Ghauri, Waqar Ali Khan, Niaz Ahmed Akhtar

Centre for Coal Technology, University of the Punjab, Lahore, Pakistan.
Department of Chemical Engineering, Comsats Institute of IT, Lahore, Pakistan.
Institute of Chemical Engineering & Technology, University of the Punjab, Lahore, Pakistan.
NFC-IEFR, Faisalabad, Pakistan.

DOI: 10.4236/aces.2014.43036                

Abstract

Fluidized bed combustion behavior of coal and biomass is of practical interest due to its significant involvement in heating systems and power plant operations. This combustion behavior has been studied by many experimental techniques along with different kinetic models. In this study, SO₂ emissions have been studied out in a pilot scale test facility of Circulating Fluidized Bed combustor (70 KW) under fast fluidized bed conditions burning coal with Pakistani wheat straw. One dimensional Mathematical model is being developed to predict the SO₂ emissions under different operating conditions like bed temperature, Ca/S molar ratio, solids circulation rate, excess air ratio and secondary to primary air ratio. These parameters are varied to validate the model and encouraging correlation is found between the experimental values and model predictions.

Keywords

Fast Fluidization, Emissions, Modelling

Conflicts of Interest

The authors declare no conflicts of interest.

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