Title :
The Fractal Properties of Calcination of Limestone and Its Sulfidation with H2S
Author :
Song, Zhanlong ; Ma, Chunyuan ; Zhang, Mingyao
Author_Institution :
Nat. Eng. Lab. for Coal Combustion Pollutants Reduction, Shandong Univ., Jinan, China
Abstract :
Fractal geometry was used to describe the calcination of limestones and the sulfur-removal process performed in TGA instrument, and the fractal dimension was calculated through the nitrogen adsorption. The effect of calcination of limestones on the porous structure and fractal dimension of calcined limestones was investigated, and the highest value of fractal dimension 2.72 can be obtained at 850°C. The fractal dimension will reduce with the increase of limestones particle size. The fractal dimension of calcined limestones has a significant influence on the sulfur-removal reactivity. It can be stated that the highest reaction reactivity can be obtained when the calcined limestone has a moderate fractal dimension of 2.70.
Keywords :
calcination; fractals; hydrogen compounds; particle size; thermal analysis; H2S; TGA; adsorption; calcination; fractal properties; limestones; particle size; porous structure; sulfur-removal process; temperature 850 degC; Calcination; Calcium; Combustion; Fractals; Gases; Nitrogen; Power engineering and energy; Power generation; Temperature; Virtual manufacturing;
Conference_Titel :
Power and Energy Engineering Conference (APPEEC), 2010 Asia-Pacific
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-4812-8
Electronic_ISBN :
978-1-4244-4813-5
DOI :
10.1109/APPEEC.2010.5448849
