Analysis of combustion characteristics using CPFD in 0.1 MW_th oxy-fuel CFB
by E.S. Go; H.W. Kim; S.Y. Kang; S.I. Keel; J.L.J. Ling; S.H. Lee
International Journal of Nanotechnology (IJNT), Vol. 19, No. 1, 2022

Abstract: This study used computational particle-fluid dynamic (CPFD) analysis techniques to analyse the fluidisation and reaction characteristics in a 0.1 MW_th oxy-fuel circulating fluidised bed (oxy-CFB) combustor. An oxy-CFB 3-dimensional model incorporated with various reaction kinetic models as stated in previous studies is used to predict the flue gas compositions. The gas and solid profiles in the oxy-CFB combustor shows a typical CFB structure consisted of dense and lean phase in the combustion chamber. Furthermore, the formation of CaSO₄ particles is evidence of a direct desulfurisation reaction between CaCO₃ and SO₂ in the oxy-CFB combustor. As a result, a continuous direct desulfurisation of CaCO₃ occurred in the reactor, which is expected to achieve maximum conversion in the long term.

Online publication date: Thu, 21-Apr-2022

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