Effect of Ammonium Concentration on SO2 Absorption in a Wet Limestone Gypsum FGD Process

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

Koichiro Iwashita¹  Toru Takashina²  Shintaro Honjo²  Naohiko Ukawa² 

[1] Engineering and Construction Center, Mitsubishi Heavy Industries, Ltd.;Hiroshima Research and Development Center, Mitsubishi Heavy Industries, Ltd.

关键词: Mass Transfer;    Absorption;    Desulfurization;    Ammonium;    Limestone;   

DOI  :  10.1252/jcej.35.197

来源: Maruzen Company Ltd

【 摘 要 】

References(8)Cited-By(3)To investigate the effect of the ammonium concentration on SO2 absorption with a chemical reaction in the wet limestone-gypsum flue gas desulfurization (FGD) process, the SO2 absorption rate in limestone slurry was studied by using a stirred tank reactor at a constant pH, high temperature (50°C) and under the presence of ammonium. An absorption model with a reaction plane and the presence of ammonium in the liquid based on the film model was also proposed for an actual FGD plant.For the SO2 absorption rate depending on the concentration of ammonium, the experimental values agreed quite well with the results calculated with the absorption model, taking the presence of ammonium in the liquid into consideration.

【 授权许可】

Unknown