Advances in air pollution control for key industries in China during the 13th five-year plan

Wu, Xuecheng; Yang, Yanping; Gong, Yu; Deng, Zhiwen; Wang, Ying; Wu, Wei; Zheng, Chenghang; Zhang, Yongxin

doi:10.1016/j.jes.2022.09.008

Cited by 17 publications

(2 citation statements)

References 72 publications

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“…These pollutants interact with each other, causing serious environmental problems, such as haze, photochemical smog, acid rain, etc., threatening human health and environmental ecology . Under stricter regulations of pollutant emission by the Chinese government in recent years, breakthroughs in NO x and SO 2 control technologies have been made in major industrial sectors . Following the effective control of NO x , SO 2 , and other conventional pollutants, VOCs have attracted a lot of attention in recent years .…”

Section: Introductionmentioning

confidence: 99%

“…3 Under stricter regulations of pollutant emission by the Chinese government in recent years, breakthroughs in NO x and SO 2 control technologies have been made in major industrial sectors. 4 Following the effective control of NO x , SO 2 , and other conventional pollutants, VOCs have attracted a lot of attention in recent years. 1 The emission control of VOCs in China started late.…”

Section: Introductionmentioning

confidence: 99%

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Simultaneous Removal of Multipollutants (VOCs/NO/SO₂) by Catalytic Ozonation Coupled with Wet Scrubbing Technology: From the Laboratory to Industrial Testing

Liu,

Zhang,

et al. 2024

Ind. Eng. Chem. Res.

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The simultaneous removal of multi-VOCs (C 3 H 6 O/C 6 H 6 /C 7 H 8 /C 8 H 10 ) and NO/SO 2 by catalytic ozonation on the CoO x -CrO x /γ-Al 2 O 3 (SCC) catalyst was studied on a laboratory scale and in industrial field testing, respectively. It was discovered that the removal efficiencies of aromatic VOCs gradually increased as the excess ozone ratio (λ), the ratio of the actual number of moles of ozone to the theoretical number, increased. With the help of a wet scrubbing system, multi-VOCs and SO 2 can be completely removed. The removal efficiency of NO remained above 95%, and the NO 2 selectivity was only 2%. The applicability of the SCC catalyst at lower temperatures was verified by achieving conversion efficiencies of multiple pollutants of more than 80% at 50 °C, with the scrubbing system. In an industrial field-scale test performed in a textile mill in Anhui Province, China, it was proven that in the absence of catalyst assistance, VOCs with high molecular weight were gradually degraded and small molecules such as methanol, formaldehyde, and formic acid were generated more. Coupled with the SCC catalyst, at λ = 3, the concentrations of almost all major VOC pollutants could be degraded to <3 ppm. Analyzed by XRD, O 2 -TPD, H 2 -TPR, XPS, and ICP-OES characterizations, the excellent activity and stability of the SCC catalysts are attributed to the good dispersion of metal oxides, strong intermetallic interactions, excellent reducibility, rapid redox cycles of Cr 3+ /Cr 6+ and Co 2+ /Co 3+ , and abundant chemisorbed oxygen. The slight deactivation of the SCC catalysts utilized continuously in the textile mill may be related to the loss of active Cr 6+ and Co 2+ . The results show that the combination of catalytic ozonation technology and the wet scrubbing system can realize the efficient and simultaneous removal of multiple pollutants, providing an experimental and practical basis for further industrial application.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Simultaneous Removal of Multipollutants (VOCs/NO/SO₂) by Catalytic Ozonation Coupled with Wet Scrubbing Technology: From the Laboratory to Industrial Testing

Liu,

Zhang,

et al. 2024

Ind. Eng. Chem. Res.

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Environmental pollution

Meo

2024

Environmental Pollution and Type 2 Diabetes Mellitus

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Dynamic coordinated air supply for moving individuals in industrial settings: Effectiveness evaluation and demonstration

Xu,

Luo,

Xia

et al. 2024

Building and Environment

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Advances in air pollution control for key industries in China during the 13th five-year plan

Cited by 17 publications

References 72 publications

Simultaneous Removal of Multipollutants (VOCs/NO/SO₂) by Catalytic Ozonation Coupled with Wet Scrubbing Technology: From the Laboratory to Industrial Testing

Simultaneous Removal of Multipollutants (VOCs/NO/SO₂) by Catalytic Ozonation Coupled with Wet Scrubbing Technology: From the Laboratory to Industrial Testing

Environmental pollution

Dynamic coordinated air supply for moving individuals in industrial settings: Effectiveness evaluation and demonstration

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Advances in air pollution control for key industries in China during the 13th five-year plan

Cited by 17 publications

References 72 publications

Simultaneous Removal of Multipollutants (VOCs/NO/SO2) by Catalytic Ozonation Coupled with Wet Scrubbing Technology: From the Laboratory to Industrial Testing

Simultaneous Removal of Multipollutants (VOCs/NO/SO2) by Catalytic Ozonation Coupled with Wet Scrubbing Technology: From the Laboratory to Industrial Testing

Environmental pollution

Dynamic coordinated air supply for moving individuals in industrial settings: Effectiveness evaluation and demonstration

Contact Info

Product

Resources

About

Simultaneous Removal of Multipollutants (VOCs/NO/SO₂) by Catalytic Ozonation Coupled with Wet Scrubbing Technology: From the Laboratory to Industrial Testing

Simultaneous Removal of Multipollutants (VOCs/NO/SO₂) by Catalytic Ozonation Coupled with Wet Scrubbing Technology: From the Laboratory to Industrial Testing