塔体倾斜条件下船舶尾气SO<sub>2</sub>洗涤脱除强化

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Abstract The SO₂ removal efficiency of magnesia-based absorbent for different absorber inclined angles was investigated, aiming at desulfurization enhancement of the swing condition of ship absorber under severe sea conditions. The effects of liquid-gas ratio, inlet SO₂ concentration, flow gas flow rate, pH value on desulphurization efficiency in scrubber tower were studied. The results showed that the desulfurization efficiency decreased with the increasing of inclined angle and the decreasing of the liquid-gas ratio, and the influence of inclined angle on desulfurization efficiency was more obvious at lower liquid-gas ratio. The desulfurization efficiency increased with the increasing of flue gas flow rate and pH value. For different pH values & inlet SO₂ concentrations, the variation range of desulfurization efficiency caused by inclined angles was different. The sieve tray and distribution ring improved the desulfurization efficiency of the absorber under swing condition effectively. When the inclined angle was 15°, the desulfurization efficiency increased by about 3%, while the desulfurization efficiency increased by about 5% at the inclined angle of 10°. When the inclined angle was below 5°, the desulfurization efficiency could be improved by nearly 7%.

Key words： scrubber inclination magnesia-based absorbent desulfurization efficiency internals

Received: 15 October 2020

PACS:

X511

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	Articles by authors
	LIU Chang
	WANG Ding-zhen
	ZHANG Yong-xin
	ZHAO Zhong-yang
	WU Wei-hong
	SHEN Min-qiang
	DAI Hao-bo
	ZHENG Cheng-hang
	GAO Xiang

Cite this article:

LIU Chang,WANG Ding-zhen,ZHANG Yong-xin等. Investigation of SO₂ removal enhancement from marine flue gas under scrubber swing condition[J]. CHINA ENVIRONMENTAL SCIENCECE, 2021, 41(6): 2571-2576.

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http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2021/V41/I6/2571

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