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Abstract <p>This work presents an analysis of the thermal conversion of coal tar pitch (CTP), a toxic waste from the steel industry, into high-added-value products, such as syngas (H<sub>2</sub> and CO) and nanostructured carbon black. A Double-Vortex Chamber Plasma Torch (DVCPT) was used to perform the gasification and pyrolysis of CTP. The electrical characteristics of DVCPT were experimentally investigated, operating at a power of 6–10 kW. Simultaneously, nanostructured carbon black (CB) with particle sizes of 70–100 nm and surface areas up to 130 m<sup>2</sup>/g was obtained. In addition, the composition of the gas was estimated theoretically, reaching up to 98% in syngas of the total volume of gas produced. These results highlight the advancement of industrial innovation, promoting a sustainable solution for the circular economy and mitigating environmental impacts associated with the management of carbonaceous industrial waste.</p>

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Thermal Plasma-Assisted Gasification and Pyrolysis of Coal Tar Pitch for Syngas and Carbon Black Production

  • 期刊论文

  • 发表日期：

    2026年4月20日

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  • F. S. Prado,
  • F. S. Miranda,
  • G. Petraconi,
  • A. S. da Silva Sobrinho

摘要

Abstract

This work presents an analysis of the thermal conversion of coal tar pitch (CTP), a toxic waste from the steel industry, into high-added-value products, such as syngas (H2 and CO) and nanostructured carbon black. A Double-Vortex Chamber Plasma Torch (DVCPT) was used to perform the gasification and pyrolysis of CTP. The electrical characteristics of DVCPT were experimentally investigated, operating at a power of 6–10 kW. Simultaneously, nanostructured carbon black (CB) with particle sizes of 70–100 nm and surface areas up to 130 m2/g was obtained. In addition, the composition of the gas was estimated theoretically, reaching up to 98% in syngas of the total volume of gas produced. These results highlight the advancement of industrial innovation, promoting a sustainable solution for the circular economy and mitigating environmental impacts associated with the management of carbonaceous industrial waste.