Modelling of trona based spray dry scrubbing of SO2

N. Erdöl-Aydin; G. Nasün-Saygili

doi:10.1016/j.cej.2006.05.020

Modelling of trona based spray dry scrubbing of SO₂

N. Erdöl-Aydin, G. Nasün-Saygili^*

^*Corresponding author for this work

Department of Chemical Engineering

Research output: Contribution to journal › Article › peer-review

13 Citations (Scopus)

Abstract

The paper presents a model of the reaction between SO₂ and trona based slurries. Experimental findings relevant to the desulfurisation in a spray dryer were compared with the proposed mathematical model and were found in good agreement. It is observed that at high stoichiometric ratios, the diffusion of SO₂ from the gas bulk to the droplet interface is dominant for absorption and with decreasing stoichiometric ratio the absorption efficiency decreases. An increase in the temperature also causes a decrease in absorption efficiency. At the stoichiometric ratio (Na/S = 2), SO₂ removal efficiency was found to be around 90%.

Original language	English
Pages (from-to)	45-50
Number of pages	6
Journal	Chemical Engineering Journal
Volume	126
Issue number	1
DOIs	https://doi.org/10.1016/j.cej.2006.05.020
Publication status	Published - 1 Feb 2007

Keywords

Desulfurisation
Mathematical modelling
Spray dryer
Trona
Two-phase flow

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10.1016/j.cej.2006.05.020

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title = "Modelling of trona based spray dry scrubbing of SO2",

abstract = "The paper presents a model of the reaction between SO2 and trona based slurries. Experimental findings relevant to the desulfurisation in a spray dryer were compared with the proposed mathematical model and were found in good agreement. It is observed that at high stoichiometric ratios, the diffusion of SO2 from the gas bulk to the droplet interface is dominant for absorption and with decreasing stoichiometric ratio the absorption efficiency decreases. An increase in the temperature also causes a decrease in absorption efficiency. At the stoichiometric ratio (Na/S = 2), SO2 removal efficiency was found to be around 90%.",

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N2 - The paper presents a model of the reaction between SO2 and trona based slurries. Experimental findings relevant to the desulfurisation in a spray dryer were compared with the proposed mathematical model and were found in good agreement. It is observed that at high stoichiometric ratios, the diffusion of SO2 from the gas bulk to the droplet interface is dominant for absorption and with decreasing stoichiometric ratio the absorption efficiency decreases. An increase in the temperature also causes a decrease in absorption efficiency. At the stoichiometric ratio (Na/S = 2), SO2 removal efficiency was found to be around 90%.

AB - The paper presents a model of the reaction between SO2 and trona based slurries. Experimental findings relevant to the desulfurisation in a spray dryer were compared with the proposed mathematical model and were found in good agreement. It is observed that at high stoichiometric ratios, the diffusion of SO2 from the gas bulk to the droplet interface is dominant for absorption and with decreasing stoichiometric ratio the absorption efficiency decreases. An increase in the temperature also causes a decrease in absorption efficiency. At the stoichiometric ratio (Na/S = 2), SO2 removal efficiency was found to be around 90%.

KW - Desulfurisation

KW - Mathematical modelling

KW - Spray dryer

KW - Trona

KW - Two-phase flow

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SP - 45

EP - 50

JO - Chemical Engineering Journal

JF - Chemical Engineering Journal

IS - 1

ER -

Modelling of trona based spray dry scrubbing of SO₂

Abstract

Keywords

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