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Removal characteristics of SO3 in the low-low temperature electrostatic precipitator.

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Title: Removal characteristics of SO3 in the low-low temperature electrostatic precipitator.
Authors: Pan, Danping1,2 (AUTHOR) pandp@njit.edu.cn, Qiu, Qili1 (AUTHOR), Zhang, Dongping1 (AUTHOR), Yang, Linjun2 (AUTHOR)
Source: Energy Sources Part A: Recovery, Utilization & Environmental Effects. 2023, Vol. 45 Issue 3, p8092-8103. 12p.
Subject Terms: *Fly ash, *Coal-fired power plants, Dew point
Abstract: As SO3 endangered the industrial equipment and environment in the coal-fired power plants, it was necessary to give full play to the SO3 removal effect in a low-low-temperature electrostatic precipitator (LLT-ESP). The relationship between SO3 and fly ash particles was investigated during the cooling process. In addition, the SO3 removal performance in the LLT-ESP was further analyzed. The migration and deposition of SO3 into fly ash particles were promoted with the decrease in the gas temperature and the fly ash particle size, as well as the increase in the SO3 concentration. As the temperature of the gas decreased below the acid dew point (ADP), the H2SO4 vapor tended to migrate into fly ash particles with smaller sizes. The SO3 mass concentration increased significantly in fly ash particles whose sizes ranged from 0.03 to 0.26 μm. When the operating voltage turned up, the SO3 removal efficiency was increased from 43.2% to 60.1%. The increase in the inlet fly ash concentration promoted the SO3 removal, and the removal efficiency increased by nearly 20%. When the gas temperature was below the ADP, it had little influence on the SO3 removal efficiency. [ABSTRACT FROM AUTHOR]
Copyright of Energy Sources Part A: Recovery, Utilization & Environmental Effects is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: GreenFILE
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Header DbId: 8gh
DbLabel: GreenFILE
An: 169920561
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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IllustrationInfo
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  Label: Title
  Group: Ti
  Data: Removal characteristics of SO<subscript>3</subscript> in the low-low temperature electrostatic precipitator.
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  Label: Authors
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  Data: <searchLink fieldCode="AR" term="%22Pan%2C+Danping%22">Pan, Danping</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> pandp@njit.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Qiu%2C+Qili%22">Qiu, Qili</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhang%2C+Dongping%22">Zhang, Dongping</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Yang%2C+Linjun%22">Yang, Linjun</searchLink><relatesTo>2</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Energy+Sources+Part+A%3A+Recovery%2C+Utilization+%26+Environmental+Effects%22">Energy Sources Part A: Recovery, Utilization & Environmental Effects</searchLink>. 2023, Vol. 45 Issue 3, p8092-8103. 12p.
– Name: Subject
  Label: Subject Terms
  Group: Su
  Data: *<searchLink fieldCode="DE" term="%22Fly+ash%22">Fly ash</searchLink><br />*<searchLink fieldCode="DE" term="%22Coal-fired+power+plants%22">Coal-fired power plants</searchLink><br /><searchLink fieldCode="DE" term="%22Dew+point%22">Dew point</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: As SO3 endangered the industrial equipment and environment in the coal-fired power plants, it was necessary to give full play to the SO3 removal effect in a low-low-temperature electrostatic precipitator (LLT-ESP). The relationship between SO3 and fly ash particles was investigated during the cooling process. In addition, the SO3 removal performance in the LLT-ESP was further analyzed. The migration and deposition of SO3 into fly ash particles were promoted with the decrease in the gas temperature and the fly ash particle size, as well as the increase in the SO3 concentration. As the temperature of the gas decreased below the acid dew point (ADP), the H2SO4 vapor tended to migrate into fly ash particles with smaller sizes. The SO3 mass concentration increased significantly in fly ash particles whose sizes ranged from 0.03 to 0.26 μm. When the operating voltage turned up, the SO3 removal efficiency was increased from 43.2% to 60.1%. The increase in the inlet fly ash concentration promoted the SO3 removal, and the removal efficiency increased by nearly 20%. When the gas temperature was below the ADP, it had little influence on the SO3 removal efficiency. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Energy Sources Part A: Recovery, Utilization & Environmental Effects is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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    Identifiers:
      – Type: doi
        Value: 10.1080/15567036.2023.2224746
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 12
        StartPage: 8092
    Subjects:
      – SubjectFull: Fly ash
        Type: general
      – SubjectFull: Coal-fired power plants
        Type: general
      – SubjectFull: Dew point
        Type: general
    Titles:
      – TitleFull: Removal characteristics of SO3 in the low-low temperature electrostatic precipitator.
        Type: main
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      – PersonEntity:
          Name:
            NameFull: Pan, Danping
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            NameFull: Qiu, Qili
      – PersonEntity:
          Name:
            NameFull: Zhang, Dongping
      – PersonEntity:
          Name:
            NameFull: Yang, Linjun
    IsPartOfRelationships:
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          Dates:
            – D: 01
              M: 02
              Text: 2023
              Type: published
              Y: 2023
          Identifiers:
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              Value: 15567036
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              Value: 45
            – Type: issue
              Value: 3
          Titles:
            – TitleFull: Energy Sources Part A: Recovery, Utilization & Environmental Effects
              Type: main
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