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Studies on properties of a ternary slurry prepared from semicoke modified with coal tar pitch.

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Title: Studies on properties of a ternary slurry prepared from semicoke modified with coal tar pitch.
Authors: Xu, Renfu1 (AUTHOR), Xie, Yuhang2 (AUTHOR), Lin, Kai3 (AUTHOR), Yuan, Min1 (AUTHOR) yuanmin781010@163.com, He, Qihui2 (AUTHOR), Zha, Yanqing1 (AUTHOR), Feng, Yahui1 (AUTHOR) eggshell618@126.com, Hu, Baixing2 (AUTHOR) hubx@nju.edu.cn
Source: International Journal of Coal Preparation & Utilization. 2026, Vol. 46 Issue 5, p1442-1466. 25p.
Subject Terms: *Slurry, *Surface properties, *Porosity, *Zeta potential, *Adsorption (Chemistry), *Coal tar, *Rheology, *Carbon-based materials
Abstract: A novel approach was proposed for the efficient and environmentally responsible utilization of semicoke (SC) and coal tar pitch (CTP) through the formulation of semicoke‒coal tar pitch‒water ternary slurry (SCPWS), wherein SC was subjected to modification with CTP. The surface properties and pore structure of SC were meticulously examined by Fourier transform infrared spectroscopy, scanning electron microscopy, contact angle with water, and N2 adsorption-desorption isotherms. The empirical results revealed a substantial reduction in the porosity and hydrophilicity of SC following its modification with CTP. Furthermore, investigations into the adsorption behavior of dispersant and zeta potential were undertaken to elucidate the principles governing the alterations in the slurryability of SC before and after modification. The saturation adsorption capacities of dispersant on the surfaces of SC, CTP and modified SC were respectively 8.303, 2.227, and 3.691 mg·g−1, respectively. Under the condition of saturated adsorption of dispersant, the absolute value of zeta potential of SC particles increased from 56.5 mV to 75.5 mV after modification, enhancing the electrostatic repulsion between particles. Accordingly, a high-performance SCPWS was achieved, featuring a solid concentration of 68.56 wt%, a water separation rate of 2.67 wt%, a good fluidity of A + , and a pseudo-plastic rheological behavior. [ABSTRACT FROM AUTHOR]
Database: Energy & Power Source
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Header DbId: enr
DbLabel: Energy & Power Source
An: 193489595
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Items – Name: Title
  Label: Title
  Group: Ti
  Data: Studies on properties of a ternary slurry prepared from semicoke modified with coal tar pitch.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Xu%2C+Renfu%22">Xu, Renfu</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Xie%2C+Yuhang%22">Xie, Yuhang</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Lin%2C+Kai%22">Lin, Kai</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Yuan%2C+Min%22">Yuan, Min</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> yuanmin781010@163.com</i><br /><searchLink fieldCode="AR" term="%22He%2C+Qihui%22">He, Qihui</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zha%2C+Yanqing%22">Zha, Yanqing</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Feng%2C+Yahui%22">Feng, Yahui</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> eggshell618@126.com</i><br /><searchLink fieldCode="AR" term="%22Hu%2C+Baixing%22">Hu, Baixing</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> hubx@nju.edu.cn</i>
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  Data: <searchLink fieldCode="JN" term="%22International+Journal+of+Coal+Preparation+%26+Utilization%22">International Journal of Coal Preparation & Utilization</searchLink>. 2026, Vol. 46 Issue 5, p1442-1466. 25p.
– Name: Subject
  Label: Subject Terms
  Group: Su
  Data: *<searchLink fieldCode="DE" term="%22Slurry%22">Slurry</searchLink><br />*<searchLink fieldCode="DE" term="%22Surface+properties%22">Surface properties</searchLink><br />*<searchLink fieldCode="DE" term="%22Porosity%22">Porosity</searchLink><br />*<searchLink fieldCode="DE" term="%22Zeta+potential%22">Zeta potential</searchLink><br />*<searchLink fieldCode="DE" term="%22Adsorption+%28Chemistry%29%22">Adsorption (Chemistry)</searchLink><br />*<searchLink fieldCode="DE" term="%22Coal+tar%22">Coal tar</searchLink><br />*<searchLink fieldCode="DE" term="%22Rheology%22">Rheology</searchLink><br />*<searchLink fieldCode="DE" term="%22Carbon-based+materials%22">Carbon-based materials</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: A novel approach was proposed for the efficient and environmentally responsible utilization of semicoke (SC) and coal tar pitch (CTP) through the formulation of semicoke‒coal tar pitch‒water ternary slurry (SCPWS), wherein SC was subjected to modification with CTP. The surface properties and pore structure of SC were meticulously examined by Fourier transform infrared spectroscopy, scanning electron microscopy, contact angle with water, and N2 adsorption-desorption isotherms. The empirical results revealed a substantial reduction in the porosity and hydrophilicity of SC following its modification with CTP. Furthermore, investigations into the adsorption behavior of dispersant and zeta potential were undertaken to elucidate the principles governing the alterations in the slurryability of SC before and after modification. The saturation adsorption capacities of dispersant on the surfaces of SC, CTP and modified SC were respectively 8.303, 2.227, and 3.691 mg·g−1, respectively. Under the condition of saturated adsorption of dispersant, the absolute value of zeta potential of SC particles increased from 56.5 mV to 75.5 mV after modification, enhancing the electrostatic repulsion between particles. Accordingly, a high-performance SCPWS was achieved, featuring a solid concentration of 68.56 wt%, a water separation rate of 2.67 wt%, a good fluidity of A + , and a pseudo-plastic rheological behavior. [ABSTRACT FROM AUTHOR]
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RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1080/19392699.2025.2499885
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 25
        StartPage: 1442
    Subjects:
      – SubjectFull: Slurry
        Type: general
      – SubjectFull: Surface properties
        Type: general
      – SubjectFull: Porosity
        Type: general
      – SubjectFull: Zeta potential
        Type: general
      – SubjectFull: Adsorption (Chemistry)
        Type: general
      – SubjectFull: Coal tar
        Type: general
      – SubjectFull: Rheology
        Type: general
      – SubjectFull: Carbon-based materials
        Type: general
    Titles:
      – TitleFull: Studies on properties of a ternary slurry prepared from semicoke modified with coal tar pitch.
        Type: main
  BibRelationships:
    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Xu, Renfu
      – PersonEntity:
          Name:
            NameFull: Xie, Yuhang
      – PersonEntity:
          Name:
            NameFull: Lin, Kai
      – PersonEntity:
          Name:
            NameFull: Yuan, Min
      – PersonEntity:
          Name:
            NameFull: He, Qihui
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            NameFull: Zha, Yanqing
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            NameFull: Feng, Yahui
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            NameFull: Hu, Baixing
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          Dates:
            – D: 01
              M: 05
              Text: 2026
              Type: published
              Y: 2026
          Identifiers:
            – Type: issn-print
              Value: 19392699
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            – Type: volume
              Value: 46
            – Type: issue
              Value: 5
          Titles:
            – TitleFull: International Journal of Coal Preparation & Utilization
              Type: main
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