Na2CO3喷雾液滴吸收SO2气液两相反应的原位测量

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Abstract

In-situ and on-line measurement of flue gas desulfurization reaction is critical for understanding mass transfer process during SO₂ absorption in a spray tower and improving desulfurization efficiency. The absorption process of SO₂ by Na₂CO₃ spray droplets was characterized. A Global Rainbow Technique (GRT) system was set up to measure the refractive indices of spray droplets. SO₂ was absorbed by Na₂CO₃ spray droplets, generating Na₂SO₃. Refractive indices of spray droplets gradually increased with the desulfurization reaction process. The linear relationship between the refractive indices of spray droplets and Na₂CO₃ consumption made it possible to evaluate the desulfurization reaction process quantitatively. The Na₂CO₃ consumption was about 62.1% and the absorption reaction rate was thus 8.8×10^-6kmol/(m²·s).

Key words： desulfurization reaction rainbow refractometry spray absorption reaction rate

Received: 18 July 2019

PACS:

X512

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	Articles by authors
	LI Qing-yi
	WU Ying-chun
	FAN Hai-dong
	CAO Jian-zheng
	XU Dong-yan
	LV Qi-meng
	WU Xue-cheng

Cite this article:

LI Qing-yi,WU Ying-chun,FAN Hai-dong等. In-situ measurement of absorption of SO₂ by Na₂CO₃ spray droplets[J]. CHINA ENVIRONMENTAL SCIENCECE, 2020, 40(2): 609-614.

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http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2020/V40/I2/609

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