Title :
Study on characteristics of semi-dry desulfurization ash from dense flow absorber
Author :
Liang, Baorui ; Song, Cunyi ; Sun, Penghui
Author_Institution :
Civil & Environ. Eng. Sch., Univ. of Sci. & Technol. Beijing, Beijing, China
Abstract :
The characteristics such as chemical constitutes, appearance shape, substance constitutes of typical dry desulfurization ash from dense flow absorber were well studied, which combined with theory analysis, chemical analysis, SEM, TGA-DTG, XRD. The results showed that this desulfurization ash were mainly constituted of CaSO4, CaSO3 and CaCO3, and its granularity was slenderer than pulverized fly ash and it has big surface areas; at low temperature, it hard be decomposed and oxidized, but at high temperature and in oxygen circumstance, it can be oxidized easily. The characteristics were studied will provide references for utilizing of desulfurization ash and popularizing dense flow absorber dry desulfurization technology.
Keywords :
X-ray diffraction; calcium compounds; chemical analysis; differential thermal analysis; flue gas desulphurisation; fly ash; scanning electron microscopy; CaCO3; CaSO3; CaSO4; SEM; TGA-DTG; X-ray diffraction; XRD; appearance shape characteristic; chemical analysis; chemical constitutes characteristic; dense flow absorber; dry desulfurization technology; flue gas desulphurization; pulverized fly ash; scanning electron microscopy; semidry desulfurization ash; thermogravimetric analysis-differential thermogravimetric; Aluminum oxide; Chemicals; Fly ash; Temperature; Water; X-ray scattering; characteristics study; dense flow absorber; desulfurization ash; flue gas desulphurization;
Conference_Titel :
Remote Sensing, Environment and Transportation Engineering (RSETE), 2011 International Conference on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4244-9172-8
DOI :
10.1109/RSETE.2011.5965321