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Research and Industrial Test on Wet Flue Gas Desulfurization with Red Mud
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Zeshuang KANG1, 2, Ye TIAN1, 2, Zhongkai LIU1, 2, Kun YAN1, 2, Tengfei ZHANG1, 2
Mining and Metallurgical Engineering | 2023, 43(3) : 110 - 114
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Mining and Metallurgical Engineering | 2023, 43(3): 110-114
• METALLURGY •
Research and Industrial Test on Wet Flue Gas Desulfurization with Red Mud
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Zeshuang KANG1, 2, Ye TIAN1, 2, Zhongkai LIU1, 2, Kun YAN1, 2, Tengfei ZHANG1, 2
Affiliations
  • 1.Zhengzhou Non-ferrous Metals Research Institute Co Ltd of CHALCO, Zhengzhou 450041, Henan, China
  • 2.National Engineering Research Center of Aluminum Metallurgy, Zhengzhou 450041, Henan, China
Published: 2023-06-01 doi: 10.3969/j.issn.0253-6099.2023.03.025
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In order to solve problems including serious atmospheric pollution by sulfur-containing flue gas and utilization of red mud, sulfur-containing flue gas was treated by using a wet process with red mud. Under the following optimal process conditions, including liquid-solid ratio of 9∶1, flue gas at a temperature of 60 ℃, liquid-gas ratio of 8.0 L/m3, liquid with pH of 5.6 for desulfurization, the SO2 concentration in flue gas can be reduced from 5 000 mg/m3 to less than 35 mg/m3, meeting a standard of ultra-low emissions. In an industrial experiment on desulfurization with red mud for the flue gas from a 75 t/h coal-fired boiler, the SO2 concentration in the low-sulfur flue gas was reduced from 4 100 mg/m3 to less than 30 mg/m3, with removal efficiency up to 99.68%；while the SO2 concentration in the high-sulfur flue gas was reduced from 10 600 mg/m3 to less than 35 mg/m3, with a removal efficiency up to 99.89%. Based on the comparison between this wet desulfurization with red mud and with limestone-gypsum flue gas desulfurization process, it is found that the wet flue gas desulfurization process with red mud as desulfurizer can have the operation cost reduced by 20.05% for the treatment of same volume of flue gas with the same SO2 concentration.

red mud  /  desulfurization  /  flue gas  /  limestone-gypsum desulfurization process
Zeshuang KANG, Ye TIAN, Zhongkai LIU, Kun YAN, Tengfei ZHANG. Research and Industrial Test on Wet Flue Gas Desulfurization with Red Mud[J]. Mining and Metallurgical Engineering, 2023 , 43 (3) : 110 -114 . DOI: 10.3969/j.issn.0253-6099.2023.03.025
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Year 2023 volume 43 Issue 3
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doi: 10.3969/j.issn.0253-6099.2023.03.025
  • Receive Date：2022-12-14
  • Online Date：2026-03-05
  • Published：2023-06-01
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  • Received：2022-12-14
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Affiliations
    1.Zhengzhou Non-ferrous Metals Research Institute Co Ltd of CHALCO, Zhengzhou 450041, Henan, China
    2.National Engineering Research Center of Aluminum Metallurgy, Zhengzhou 450041, Henan, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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