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Impact of Lubricant Metallic Elements on Oxidation of Combustion Particulate Matter in Diesel Engines.

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Title: Impact of Lubricant Metallic Elements on Oxidation of Combustion Particulate Matter in Diesel Engines.
Authors: Liu, Shuai1 (AUTHOR) lstcls@ujs.edu.cn, Shen, Chenxu2 (AUTHOR) 277965138@qq.com, Li, Ruina1 (AUTHOR) liruina0706@126.com, Chen, Lin3 (AUTHOR) 1787888230@qq.com, Zhu, Xinchang4 (AUTHOR) zxc1842025@126.com
Source: Journal of Energy Engineering. Apr2026, Vol. 152 Issue 2, p1-13. 13p.
Subject Terms: *Lubricant additives, *Oxidation, *Particulate matter, *Diesel motor exhaust gas, *Metals, *Diesel motors, *Diesel particulate filters
Abstract: Focusing on the influence of lubricant additives on diesel particulate filter regeneration and the oxidation process of particulate matter, research on the oxidation characteristics and oxidation process of diesel engine combustion particulate matter by metal components of lubricant additives was carried out. A test rig of a four-cylinder diesel engine was built, lubricant additives containing different metal elements were used, diesel engine combustion particulate matter was collected, and the surface functional groups and oxidation characteristics of the particulate matter were investigated. Ash containing different metal elements was blended with Printex-U(PU) carbon black, and the elemental composition of the samples was analyzed. Samples of the particulate matter with different oxidation conversion rates were prepared, and the microscopic morphology of the samples was analyzed. The results showed that all the lubricant additives increased the oxidation activity of particulate matter, shortened the oxidation time, and reduced the onset temperature of oxidation; the antioxidant and corrosion inhibitor had the smallest decrease in the activation energy of the particulate matter, and the extreme pressure (EP) additive had the largest increase in the oxidation activity of the particulate matter; the blending of the ash enhanced the ratio of adsorbed oxygen (Oa)/lattice oxygen (O1) and the sp3/sp2 hybridization of the samples, which led to an increase in the oxygen active sites increased; the particulate matter agglomerated more tightly after the ash blending; and the area of the hollow structure of the sample increased with the increase of oxidative conversion rate, which was conducive to the enhancement of the oxidative activity of the particulate matter. [ABSTRACT FROM AUTHOR]
Database: Energy & Power Source
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Header DbId: enr
DbLabel: Energy & Power Source
An: 191607118
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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Items – Name: Title
  Label: Title
  Group: Ti
  Data: Impact of Lubricant Metallic Elements on Oxidation of Combustion Particulate Matter in Diesel Engines.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Liu%2C+Shuai%22">Liu, Shuai</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> lstcls@ujs.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Shen%2C+Chenxu%22">Shen, Chenxu</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> 277965138@qq.com</i><br /><searchLink fieldCode="AR" term="%22Li%2C+Ruina%22">Li, Ruina</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> liruina0706@126.com</i><br /><searchLink fieldCode="AR" term="%22Chen%2C+Lin%22">Chen, Lin</searchLink><relatesTo>3</relatesTo> (AUTHOR)<i> 1787888230@qq.com</i><br /><searchLink fieldCode="AR" term="%22Zhu%2C+Xinchang%22">Zhu, Xinchang</searchLink><relatesTo>4</relatesTo> (AUTHOR)<i> zxc1842025@126.com</i>
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  Label: Source
  Group: Src
  Data: <searchLink fieldCode="JN" term="%22Journal+of+Energy+Engineering%22">Journal of Energy Engineering</searchLink>. Apr2026, Vol. 152 Issue 2, p1-13. 13p.
– Name: Subject
  Label: Subject Terms
  Group: Su
  Data: *<searchLink fieldCode="DE" term="%22Lubricant+additives%22">Lubricant additives</searchLink><br />*<searchLink fieldCode="DE" term="%22Oxidation%22">Oxidation</searchLink><br />*<searchLink fieldCode="DE" term="%22Particulate+matter%22">Particulate matter</searchLink><br />*<searchLink fieldCode="DE" term="%22Diesel+motor+exhaust+gas%22">Diesel motor exhaust gas</searchLink><br />*<searchLink fieldCode="DE" term="%22Metals%22">Metals</searchLink><br />*<searchLink fieldCode="DE" term="%22Diesel+motors%22">Diesel motors</searchLink><br />*<searchLink fieldCode="DE" term="%22Diesel+particulate+filters%22">Diesel particulate filters</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Focusing on the influence of lubricant additives on diesel particulate filter regeneration and the oxidation process of particulate matter, research on the oxidation characteristics and oxidation process of diesel engine combustion particulate matter by metal components of lubricant additives was carried out. A test rig of a four-cylinder diesel engine was built, lubricant additives containing different metal elements were used, diesel engine combustion particulate matter was collected, and the surface functional groups and oxidation characteristics of the particulate matter were investigated. Ash containing different metal elements was blended with Printex-U(PU) carbon black, and the elemental composition of the samples was analyzed. Samples of the particulate matter with different oxidation conversion rates were prepared, and the microscopic morphology of the samples was analyzed. The results showed that all the lubricant additives increased the oxidation activity of particulate matter, shortened the oxidation time, and reduced the onset temperature of oxidation; the antioxidant and corrosion inhibitor had the smallest decrease in the activation energy of the particulate matter, and the extreme pressure (EP) additive had the largest increase in the oxidation activity of the particulate matter; the blending of the ash enhanced the ratio of adsorbed oxygen (Oa)/lattice oxygen (O1) and the sp3/sp2 hybridization of the samples, which led to an increase in the oxygen active sites increased; the particulate matter agglomerated more tightly after the ash blending; and the area of the hollow structure of the sample increased with the increase of oxidative conversion rate, which was conducive to the enhancement of the oxidative activity of the particulate matter. [ABSTRACT FROM AUTHOR]
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=enr&AN=191607118
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1061/JLEED9.EYENG-6341
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 13
        StartPage: 1
    Subjects:
      – SubjectFull: Lubricant additives
        Type: general
      – SubjectFull: Oxidation
        Type: general
      – SubjectFull: Particulate matter
        Type: general
      – SubjectFull: Diesel motor exhaust gas
        Type: general
      – SubjectFull: Metals
        Type: general
      – SubjectFull: Diesel motors
        Type: general
      – SubjectFull: Diesel particulate filters
        Type: general
    Titles:
      – TitleFull: Impact of Lubricant Metallic Elements on Oxidation of Combustion Particulate Matter in Diesel Engines.
        Type: main
  BibRelationships:
    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Liu, Shuai
      – PersonEntity:
          Name:
            NameFull: Shen, Chenxu
      – PersonEntity:
          Name:
            NameFull: Li, Ruina
      – PersonEntity:
          Name:
            NameFull: Chen, Lin
      – PersonEntity:
          Name:
            NameFull: Zhu, Xinchang
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          Dates:
            – D: 01
              M: 04
              Text: Apr2026
              Type: published
              Y: 2026
          Identifiers:
            – Type: issn-print
              Value: 07339402
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              Value: 152
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              Value: 2
          Titles:
            – TitleFull: Journal of Energy Engineering
              Type: main
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