Assessment of Ultra-Low SO2 Emission Technology for Ultra-High Sulfur Coal

doi:10.11930/j.issn.1004-9649.2017.03.034.04

Abstract

Abstract: In this paper, the technology of single tower integrated desulphurization and dust removal purification, which has been applied in the 300 MW ultra-high sulfur coal firing power plant, is tested and evaluated. The test results are obtained using coals with 5% sulfur contents. It is observed from the testing data that the desulphurization efficiency of the system can be stabilized between 99.70% and 99.82% while the SO₂ emission concentrations are maintained between 23.4 mg/m³ and 30.8 mg/m³, which meets the ultra-low SO₂ emission requirement of less than 35 mg/m³. In addition, the dust removal efficiency ranges between 78.6%~87.8% with the particulate emission concentrations also stabilized between 4.60 mg/m³~5.76 mg/m³, which meets the ultra-low particulate matter emission requirement of less than 10 mg/m³. Compared with the single-tower double-cycle technology and the double-tower double-cycle technology, this technology is more cost-effective in the aspects of both retrofit constructions and operations.

Key words: ultra-high sulfur coal, SO2, desulfurization and dust removal integration, ultra-low emission, economic efficiency

CLC Number:

X701
TM621

YI Yuping, ZHU Fahua, ZHANG Wenjie, LI Junzhuang, DUAN Jiuxiang, LI Xiaolong. Assessment of Ultra-Low SO₂ Emission Technology for Ultra-High Sulfur Coal[J]. Electric Power, 2017, 50(3): 34-40.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.2017.03.034.04

https://www.electricpower.com.cn/EN/Y2017/V50/I3/34

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Assessment of Ultra-Low SO₂ Emission Technology for Ultra-High Sulfur Coal

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