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Impact of Fouling on Operation on Heat Recovery System with Once-Through Reboiler.

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Title: Impact of Fouling on Operation on Heat Recovery System with Once-Through Reboiler.
Authors: Iijima, Masakazu1 (AUTHOR), Suzuki, Ryota2 (AUTHOR) ryota.suzuki@htri.net
Source: Heat Transfer Engineering. 2026, Vol. 47 Issue 11/12, p1000-1005. 6p.
Subject Terms: *Fouling, *Heat flux, *Scheduling, *Distillation apparatus, *Heat exchanger efficiency, *Heat recovery, *Pressure drop (Fluid dynamics)
Abstract: Stable operation of once-through and thermosiphon reboilers presents a challenge when compared to traditional shell-and-tube heat exchangers due to various factors that can destabilize flow. One such factor, the minimum heat flux, is critical for maintaining a consistent operation. In the context of a reboiler system, fouling can impact performance by reducing heat transfer efficiency and increasing the pressure drop across the system. This problem was exemplified in a case where a once-through reboiler attached to a distillation column exhibited a decline in performance following maintenance activities of a connected economizer unit. Subsequent analyses and plant tests suggested that operating the reboiler below the required minimum heat flux threshold for stable operation was a potential cause. This insufficient heat flux stemmed from an inadequate cleaning schedule for the heat exchange components, highlighting the importance of appropriate maintenance to prevent fouling. By addressing these issues, insights into the optimal minimum heat flux and the significance of cleaning cycles for maintaining reboiler efficiency were gained. These insights are critical for ensuring the proper function of reboiler systems, as fouling can lead to a host of operational challenges, including reduced heat transfer, increased energy consumption, and potential shutdowns for unscheduled cleaning and maintenance. [ABSTRACT FROM AUTHOR]
Database: Energy & Power Source
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  Availability: 1
Header DbId: enr
DbLabel: Energy & Power Source
An: 193623337
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
IllustrationInfo
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  Label: Title
  Group: Ti
  Data: Impact of Fouling on Operation on Heat Recovery System with Once-Through Reboiler.
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  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Iijima%2C+Masakazu%22">Iijima, Masakazu</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Suzuki%2C+Ryota%22">Suzuki, Ryota</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> ryota.suzuki@htri.net</i>
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  Label: Source
  Group: Src
  Data: <searchLink fieldCode="JN" term="%22Heat+Transfer+Engineering%22">Heat Transfer Engineering</searchLink>. 2026, Vol. 47 Issue 11/12, p1000-1005. 6p.
– Name: Subject
  Label: Subject Terms
  Group: Su
  Data: *<searchLink fieldCode="DE" term="%22Fouling%22">Fouling</searchLink><br />*<searchLink fieldCode="DE" term="%22Heat+flux%22">Heat flux</searchLink><br />*<searchLink fieldCode="DE" term="%22Scheduling%22">Scheduling</searchLink><br />*<searchLink fieldCode="DE" term="%22Distillation+apparatus%22">Distillation apparatus</searchLink><br />*<searchLink fieldCode="DE" term="%22Heat+exchanger+efficiency%22">Heat exchanger efficiency</searchLink><br />*<searchLink fieldCode="DE" term="%22Heat+recovery%22">Heat recovery</searchLink><br />*<searchLink fieldCode="DE" term="%22Pressure+drop+%28Fluid+dynamics%29%22">Pressure drop (Fluid dynamics)</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Stable operation of once-through and thermosiphon reboilers presents a challenge when compared to traditional shell-and-tube heat exchangers due to various factors that can destabilize flow. One such factor, the minimum heat flux, is critical for maintaining a consistent operation. In the context of a reboiler system, fouling can impact performance by reducing heat transfer efficiency and increasing the pressure drop across the system. This problem was exemplified in a case where a once-through reboiler attached to a distillation column exhibited a decline in performance following maintenance activities of a connected economizer unit. Subsequent analyses and plant tests suggested that operating the reboiler below the required minimum heat flux threshold for stable operation was a potential cause. This insufficient heat flux stemmed from an inadequate cleaning schedule for the heat exchange components, highlighting the importance of appropriate maintenance to prevent fouling. By addressing these issues, insights into the optimal minimum heat flux and the significance of cleaning cycles for maintaining reboiler efficiency were gained. These insights are critical for ensuring the proper function of reboiler systems, as fouling can lead to a host of operational challenges, including reduced heat transfer, increased energy consumption, and potential shutdowns for unscheduled cleaning and maintenance. [ABSTRACT FROM AUTHOR]
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=enr&AN=193623337
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1080/01457632.2025.2502228
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 6
        StartPage: 1000
    Subjects:
      – SubjectFull: Fouling
        Type: general
      – SubjectFull: Heat flux
        Type: general
      – SubjectFull: Scheduling
        Type: general
      – SubjectFull: Distillation apparatus
        Type: general
      – SubjectFull: Heat exchanger efficiency
        Type: general
      – SubjectFull: Heat recovery
        Type: general
      – SubjectFull: Pressure drop (Fluid dynamics)
        Type: general
    Titles:
      – TitleFull: Impact of Fouling on Operation on Heat Recovery System with Once-Through Reboiler.
        Type: main
  BibRelationships:
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      – PersonEntity:
          Name:
            NameFull: Iijima, Masakazu
      – PersonEntity:
          Name:
            NameFull: Suzuki, Ryota
    IsPartOfRelationships:
      – BibEntity:
          Dates:
            – D: 01
              M: 06
              Text: 2026
              Type: published
              Y: 2026
          Identifiers:
            – Type: issn-print
              Value: 01457632
          Numbering:
            – Type: volume
              Value: 47
            – Type: issue
              Value: 11/12
          Titles:
            – TitleFull: Heat Transfer Engineering
              Type: main
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