A Mechanism of Inhibition of CaO-SO2 Reaction during Fluidized Bed Sludge Incineration

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

Jeong-Gook Jang¹  Seok-Jun Yoa²  Jea-Keun Lee²  Mi-Ran Kim²  Il-Kyu Kim² 

[1] Department of Environmental Engineering, Dongseo University;Department of Environmental Engineering, Pukyong National University

关键词: Fluidized Bed Incineration;    Desulfurization;    Phosphorous Compound;    Equilibrium Model;   

DOI  :  10.1252/jcej.38.883

来源: Maruzen Company Ltd

【 摘 要 】

References(10)Cited-By(3)In order to find the optimum limestone addition rate for the desulfurization during fluidized bed sludge incineration, a simulation is conducted using a thermodynamic equilibrium model. For the analyses of the desulfurization and the pollutant emissions by the limestone addition, the Ca/S molar ratio is changed up to 7.0 with the consideration of the CaO bound in the ash of the sludge.According to the simulation, it is found that the desulfurizing reaction with limestone is greatly influenced by phosphorous content in the ash. If the Ca/P molar ratio is less than two, the desulfurizing reaction between CaO and S may not occur. The reason is that the reactivity of CaO with a P component in the ash is superior to that with an S component.

【 授权许可】

Unknown