Study of a Model of Wet Ammonia-Based Flue Gas Desulphurization

Removal of sulphur dioxide(SO₂) from the flue gases emitted from various industries in a technological-economical-environmental manner and its accurate prediction is of great importance. In present investigation, a mathematics model of wet ammonia-based flue gas desulphurization(FGD) was developed by studying the process of mass transfer and chemical reaction. This model was used to simulate the process of SO₂ absorption in the packed column, and it was found that calculated results agreed fairly well with experimental data for a wide range of operating conditions of pH of solution, liquid-to-gas ratio, inlet SO₂ concentration and gas flow rate. This model can provide predictions of the absorption performances of wet ammonia-based flue gas desulphurization and appears to be really helpful to design scrubbers for SO₂ abatement with ammonia.