矿浆法同时脱硫脱硝的研究进展与展望

doi:10.11896/cldb.20080316

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Abstract Presently, it is greatly significant for air pollution control to seek a highly efficient and low-cost wet process used for simultaneous removing SO₂ and NO_x. In this review, the emphasis is laid on the research progress of varied slurry methods for simultaneous removal of SO₂ and NO_x, including pyrolusite slurry, phosphate rock slurry, steel slag slurry, copper slag slurry, red mud slurry, water quenching manganese slag slurry, and so on. The review has made a further discussion on removal mechanisms of simultaneous removal of SO₂ and NO_x by different slurry methods. Meanwhile, the merits and shortcomings of the above six slurry methods are compared and evaluated. It is concluded that the slurry methods combined with oxidant methods not only obtain higher desulfurization efficiency and lower cost, but also can achieve recovery from tail liquid for resource utilization, obtaining the high utilization ratio of solid waste. Also, we point out the existed weakness of slurry methods, such as still lack of mechanism research and limited industrial scale. Furthermore, combining the existing research results, the future research directions for developing new slurry methods for simultaneous removal of SO₂ and NO_x are provided. It is believed that the modification of minerals or slag itself to improve its denitrification performance and the research on the resource utilization of the whole process of the slurry method will become new research focus.

Key words： slurry simultaneous desulfurization and denitrification resource utilization

Published: 10 May 2022 Online: 2022-05-09

CLC number:

X756

Fund:National Key R & D Program of China (2018YFC1900305,2018YFC0213400), the National Natural Science Foundation of China (51708266,51968034,21667015,41807373), China Scholarship Council Foundation (201808535082) and Science and Technology Program of Yunan Province (2019FB069).

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	Articles by authors
	LUO Yansu
	LI Kai
	WANG Chi
	WANG Fei
	SONG Xin
	BAO Jiacheng
	NING Ping
	SUN Xin

Cite this article:

LUO Yansu,LI Kai,WANG Chi, et al. Research Progress and Prospect of Simultaneous Desulfurization and Denitrification by Slurry[J]. Materials Reports, 2022, 36(9): 20080316-7.

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http://www.mater-rep.com/EN/10.11896/cldb.20080316 OR http://www.mater-rep.com/EN/Y2022/V36/I9/20080316

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