Title :
The influence of Fe2O3 to sulfur fixation efficiency of CaO for coal powder combustion
Author :
Zhang Shengqin ; Zhu Guangjun ; Deng Nengyun ; Liang Zhongyu
Author_Institution :
Sch. of Metall. & Mater. Sci. & Eng., Chongqing Univ. of Sci. & Technol., Chongqing, China
Abstract :
For coal powder in southwest of China, sulfur fixing technology of coal powder combustion in this paper has been studied by thermodynamics calculation and experiment. Results show that, the sulfur fixation efficiency of CaO in experiment is highest; when n(CaO)/n(S) ratio equal to 2.0, additive Fe2O3 enhances the sulfur fixation efficiency of fixing agent CaO. Fe2O3 is easier to decompound gradually to Fe2O3 and FeO at the reducing action of C. One side the oxides of iron can catalyze the reaction of sulfur-fixing, on the other hand Fe2O3 can absorbs SO2 to turn to FeSO4.
Keywords :
additives; air pollution; calcium compounds; coal; combustion; iron compounds; thermodynamics; CaO; Fe2O3; FeO; additives; coal powder combustion; fixing agent; southwest China; sulfur fixing technology; thermodynamics calculation; Thermodynamics; CaO; Fe2O3 thermodynamics; coal powder; sulfur fixing;
Conference_Titel :
Materials for Renewable Energy & Environment (ICMREE), 2011 International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-61284-749-8
DOI :
10.1109/ICMREE.2011.5930660