A new research initiative by Curtin University in Australia is set to advance the role of pyrolysis in circular economy solutions, focusing on upgrading plastic-derived pyrolysis oil into sustainable aviation fuel (SAF)—a critical step in decarbonizing both the waste and aviation fuel sectors.

The PhD project, funded through an ARC Discovery grant, addresses a key limitation in current pyrolysis systems: while mixed plastic waste can be converted into oil, the resulting product lacks the chemical quality required for direct use in aviation fuels. This research aims to bridge that gap through advanced upgrading processes.

At the center of the project is the development of a cost-efficient and energy-optimized upgrading pathway capable of converting low-grade pyrolysis oil into jet fuel-range hydrocarbons. This involves improving both yield and molecular composition, ensuring the final product meets stringent aviation fuel standards.

From a technical standpoint, the research will explore:

  • Selective condensation mechanisms within pyrolysis oil fractions
  • Thermochemical behavior of heavy oil fractions during secondary processing
  • Process optimization to enhance fuel-grade hydrocarbon output

These insights are expected to contribute to the broader evolution of advanced thermochemical recycling technologies, including applications relevant to tire pyrolysis, where similar upgrading challenges exist for producing high-value outputs like recovered carbon black (rCB) and refined oils.

Beyond technical innovation, the project carries strong environmental and economic implications. By enabling higher-value fuel production from waste streams, it supports:

Decarbonization of aviation, one of the hardest-to-abate sectors Reduction of landfill and plastic waste leakage Growth of regional circular economy infrastructure, particularly in rural Australia

The opportunity is open to domestic candidates pursuing a PhD in Chemical Engineering through the WA School of Mines (WASM), with a competitive stipend of AUD $38,440 per year for up to 3.5 years.

Applications close May 15, 2026, with the project offering a unique entry point into cutting-edge research at the intersection of pyrolysis, sustainable fuels, and advanced recycling technologies—a space increasingly critical to global climate and resource strategies.

Article source: Curtin University.