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

fYear

2010

fDate

28-31 March 2010

Firstpage

1

Lastpage

4

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 850Â°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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/APPEEC.2010.5448849

Filename

5448849