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

fYear

2011

fDate

24-26 June 2011

Firstpage

4460

Lastpage

4463

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Remote Sensing, Environment and Transportation Engineering (RSETE), 2011 International Conference on

Conference_Location

Nanjing

Print_ISBN

978-1-4244-9172-8

Type

conf

DOI

10.1109/RSETE.2011.5965321

Filename

5965321