Study on Process of SO2 Removal by Grading Atomization in a Two Levels Spouting Desulphurization Tower

Author

Sun, Qiaoqun ; Zhu, Weibing ; Zhang, Xiaobin ; Gao, Jianmin

Author_Institution

Coll. of Aerosp. & Civil Eng., Harbin Eng. Univ., Harbin, China

fYear

2011

fDate

19-20 Feb. 2011

Firstpage

1769

Lastpage

1772

Abstract

The experimental research was carried out about process of SO₂ removal in flue gas using white lime slurry atomization, and with the method of non-contact on-line measuring for SO₂ concentration in riser. The temperature distribution of slurry atomization drying was measured by new sandwich structure thermocouple with air pump. The results showed: The maximum SO₂ removal and temperature decreasing amplitude were got at a distance 200mm from the nozzle. Atomization temperature region was bimodal symmetric distribution. Evaporation intensity from high to low along the axis. The SO₂ removal rate was first increased and then decreased, SO₂ removal and evaporation strength biggest regional overlap. Two-stage spray desulfurization efficiency increased 11.9%.

Keywords

chemical variables measurement; compressors; confined flow; drying; evaporation; flue gas desulphurisation; heat transfer; nozzles; sandwich structures; slurries; sprays; sulphur compounds; temperature distribution; temperature measurement; thermocouples; SO₂; air pump; bimodal symmetric distribution; evaporation strength; flue gas; grading atomization; noncontact online measurement; riser; sandwich structure thermocouple; sulfur dioxide concentration; sulfur dioxide removal rate; temperature distribution; two level spouting desulphurization tower; two-stage spray desulfurization efficiency; white lime slurry atomization drying; Computers; Distributed control; Monitoring; On-line measurement system; atomization; desulfurization tower; sulfur dioxide;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer Distributed Control and Intelligent Environmental Monitoring (CDCIEM), 2011 International Conference on

Conference_Location

Changsha

Print_ISBN

978-1-61284-278-3

Electronic_ISBN

978-0-7695-4350-5

Type

conf

DOI

10.1109/CDCIEM.2011.325

Filename

5748160