An efficient calcium-based sorbent for flue gas dry-desulfurization: promotion roles of nitrogen oxide and oxygen

Wang, Kaiqi; Gao, Xiaoqing; Lin, Bo; Hua, Dong-Xu; Yan, Yong; Zhao, Hang; Xiao, Wen‐De

doi:10.1039/d2ra05769g

Cited by 10 publications

(3 citation statements)

References 44 publications

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“…53,54 The two peaks at 1370 cm −1 and 1360 cm −1 belong to the vibration of gaseous SO 2 , which usually belong to interference peaks. 55,56…”

Section: Resultsmentioning

confidence: 99%

“…53,54 The two peaks at 1370 cm −1 and 1360 cm −1 belong to the vibration of gaseous SO 2 , which usually belong to interference peaks. 55,56 The adsorbed SO 2 appears on both V 1 /Ti and V 1 M 5 /Ti, while disappears on V 1 /Ti and gradually decreases on V 1 M 5 / Ti as the temperature increases, and the tridentate sulfate…”

Section: Formation Temperature Of Sulfur-containing Sedimentsmentioning

confidence: 99%

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Mechanism of ammonium bisulfate deposition on V₁M₅/Ti catalysts with synergistic effects of V and M (M = Ce, Co, Fe, and Mn) in low-temperature NH₃-SCR

Xu,

Xiong,

et al. 2024

Catal. Sci. Technol.

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“…53,54 The two peaks at 1370 cm −1 and 1360 cm −1 belong to the vibration of gaseous SO 2 , which usually belong to interference peaks. 55,56…”

Section: Resultsmentioning

confidence: 99%

Section: Formation Temperature Of Sulfur-containing Sedimentsmentioning

confidence: 99%

Mechanism of ammonium bisulfate deposition on V₁M₅/Ti catalysts with synergistic effects of V and M (M = Ce, Co, Fe, and Mn) in low-temperature NH₃-SCR

Xu,

Xiong,

et al. 2024

Catal. Sci. Technol.

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“…23 It is noteworthy that there is a band at 1456 cm −1 ; this could explain the existence of SO 3 . 33,34 The nitrate can be detected due to the band at 1384 cm −1 . 35 Obviously, a single peak near 3640 cm −1 could be found.…”

Section: Composition Analysismentioning

confidence: 99%

Effect of CO₂ in Simultaneous Removal Process of SO₂ and NO₂ by Hydrated Lime

Zou,

Zhou,

Hong

et al. 2023

Energy Fuels

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Pilot study on coke oven flue gas injection desulfurization using highly active modified calcium hydroxide desulfurizer

Liu,

Ding,

Chang

et al. 2024

Asia-Pacific J Chem Eng

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Calcium hydroxide injection desulfurization has attracted extensive attention because of its low cost and recyclable characteristics. The modified calcium hydroxide was prepared on the basis of the digestion of calcium lignosulfonate (wood calcium) aqueous solution with ethanol and used in the pilot test of flue gas injection desulfurization of the coke oven. The injection desulfurization experiment was carried out with calcium hydroxide modified by 50% ethanol and 20% ethanol+0.5% wood calcium. It was found that the injection desulfurization efficiency of the two modified calcium hydroxide was better than that of the unmodified calcium hydroxide under the same injection conditions. The desulfurization efficiency of 20% ethanol+0.5% calcium hydroxide modified by wood calcium can reach more than 93.7% under the condition of 2 and 5 times calcium to sulfur ratio. The XRF analysis of desulfurization product showed that the content of S element in unreturned desulfurization ash was only 1.28%, which increased to 4.46% after 5 times of return. BET results showed that the specific surface area of the returned desulfurization ash decreased from 35.115m2/g to 10.256m2/g and the pore volume decreased from 0.103cm3/g to 0.0433cm3/g.

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An efficient calcium-based sorbent for flue gas dry-desulfurization: promotion roles of nitrogen oxide and oxygen

Abstract: The development of sorbents for flue gas desulfurization in a dry mode is essential to control emission of sulfur dioxide.

Cited by 10 publications

References 44 publications

Mechanism of ammonium bisulfate deposition on V₁M₅/Ti catalysts with synergistic effects of V and M (M = Ce, Co, Fe, and Mn) in low-temperature NH₃-SCR

Mechanism of ammonium bisulfate deposition on V₁M₅/Ti catalysts with synergistic effects of V and M (M = Ce, Co, Fe, and Mn) in low-temperature NH₃-SCR

Effect of CO₂ in Simultaneous Removal Process of SO₂ and NO₂ by Hydrated Lime

Pilot study on coke oven flue gas injection desulfurization using highly active modified calcium hydroxide desulfurizer

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An efficient calcium-based sorbent for flue gas dry-desulfurization: promotion roles of nitrogen oxide and oxygen

Abstract: The development of sorbents for flue gas desulfurization in a dry mode is essential to control emission of sulfur dioxide.

Cited by 10 publications

References 44 publications

Mechanism of ammonium bisulfate deposition on V1M5/Ti catalysts with synergistic effects of V and M (M = Ce, Co, Fe, and Mn) in low-temperature NH3-SCR

Mechanism of ammonium bisulfate deposition on V1M5/Ti catalysts with synergistic effects of V and M (M = Ce, Co, Fe, and Mn) in low-temperature NH3-SCR

Effect of CO2 in Simultaneous Removal Process of SO2 and NO2 by Hydrated Lime

Pilot study on coke oven flue gas injection desulfurization using highly active modified calcium hydroxide desulfurizer

Contact Info

Product

Resources

About

Mechanism of ammonium bisulfate deposition on V₁M₅/Ti catalysts with synergistic effects of V and M (M = Ce, Co, Fe, and Mn) in low-temperature NH₃-SCR

Mechanism of ammonium bisulfate deposition on V₁M₅/Ti catalysts with synergistic effects of V and M (M = Ce, Co, Fe, and Mn) in low-temperature NH₃-SCR

Effect of CO₂ in Simultaneous Removal Process of SO₂ and NO₂ by Hydrated Lime