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The production of coal tar pitchCoal tar pitch (CTP), used as an anodeAnode binder in the aluminiumAluminium industryIndustry, relies on unsustainable fossil fuels, leading to significant CO2 emissionsEmissions. Bio-based binder, derived from biomassBiomass pyrolysis product bio-oilBio-oil, could be a promising substitute for CTP due to its similar rheological properties. This study aims to evaluate different phases of industrial bio-oilBio-oil from the same source, subjected to different heat treatmentsHeat treatment, to determine their potential as coal tar pitchCoal tar pitch alternatives. Bio-binderBio-binder samples were obtained via heat treatmentHeat treatment under various temperatures and holding times. CharacterizationCharacterization of the two phases of bio-oilBio-oil and the obtained bio-binderBio-binder samples including water content, FTIR, TGA, and viscosity were conducted. The results showed that two phases of bio-oilBio-oil, used in this project, have similar chemical and thermal properties. The bio-bindersBio-binder produced by these two bio-oils also showed similar rheological properties. The rheological properties of bio-bindersBio-binder were improved using higher heat treatmentHeat treatment temperatures and/or longer holding times. To produce a solid binder material, the experiment temperature should be higher than 200 °C. In this study, the bio-binderBio-binder produced at a heat treatmentHeat treatment temperature of 270 °C and a holding time of 60 min exhibited rheological properties close to the commercial CTP.

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Screening Pyrolysis Bio-Oil for Bio-Binder Synthesis in Aluminium Production

  • 会议论文

  • 发表日期：

    2025年

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  • Yazhe Wang,
  • Sirui Liu,
  • Hanmin Yang,
  • Nora Meling Eriksen,
  • Viktorija Tomkute,
  • Sophia Peters,
  • Martin Walderhaug,
  • Aekjuthon Phounglamcheik,
  • Weihong Yang

摘要

The production of coal tar pitchCoal tar pitch (CTP), used as an anodeAnode binder in the aluminiumAluminium industryIndustry, relies on unsustainable fossil fuels, leading to significant CO2 emissionsEmissions. Bio-based binder, derived from biomassBiomass pyrolysis product bio-oilBio-oil, could be a promising substitute for CTP due to its similar rheological properties. This study aims to evaluate different phases of industrial bio-oilBio-oil from the same source, subjected to different heat treatmentsHeat treatment, to determine their potential as coal tar pitchCoal tar pitch alternatives. Bio-binderBio-binder samples were obtained via heat treatmentHeat treatment under various temperatures and holding times. CharacterizationCharacterization of the two phases of bio-oilBio-oil and the obtained bio-binderBio-binder samples including water content, FTIR, TGA, and viscosity were conducted. The results showed that two phases of bio-oilBio-oil, used in this project, have similar chemical and thermal properties. The bio-bindersBio-binder produced by these two bio-oils also showed similar rheological properties. The rheological properties of bio-bindersBio-binder were improved using higher heat treatmentHeat treatment temperatures and/or longer holding times. To produce a solid binder material, the experiment temperature should be higher than 200 °C. In this study, the bio-binderBio-binder produced at a heat treatmentHeat treatment temperature of 270 °C and a holding time of 60 min exhibited rheological properties close to the commercial CTP.