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Thermal Conversion

RESOURCES › WASTE VALORIZATION & CONVERSION TECHNOLOGIES

Transforming Biomass and Waste into High-Density Bio-Fuels and Bioproducts

Thermal conversion (or thermochemical processing) utilizes elevated temperatures to rapidly decompose biomass, agricultural residues, forestry waste, and municipal solids into energy-dense liquid fuels, synthesis gas (syngas), biocoal, and biochar. Unlike biological conversion routes that require days or weeks, thermochemical processes, such as pyrolysis, gasification, torrefaction, and hydrothermal liquefaction, operate in minutes or seconds, unlocking rapid valorization pathways for Louisiana's abundant organic feedstocks.

Key Pathways & Thermochemical Processes

Thermochemical conversion strategies vary by operating temperature, heating rate, and oxygen availability across three primary processing frontiers:

Pyrolysis & Bio-Oil Production

Thermal decomposition of organic materials in the absence of oxygen, yielding liquid bio-oil for drop-in renewable fuels, solid biochar for soil remediation, and non-condensable pyrolytic gas for process heat.

Gasification & Syngas Synthesis

High-temperature conversion (>700°C) under controlled oxygen or steam environments to produce synthesis gas (H₂ and CO), a primary chemical building block for clean hydrogen, methanol, and synthetic fuels.

Torrefaction & Hydrothermal Liquefaction (HTL)

Mild thermal pre-treatment (torrefaction) to produce hydrophobic, high-energy biocoal pellets, or wet thermochemical processing (HTL) to convert high-moisture agricultural slurries and sludge directly into bio-crude.

Explore the Thermal Conversion Resource Repository

Access all peer-reviewed literature, state technical reports, and workshop presentation slide decks.

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Funding & Acknowledgments

The Louisiana Energy Extension Service (LEES) is primarily funded via the State of Louisiana through legislative support approved by Gov. Jeff Landry, EIL-based funding, and donations from various industry stakeholders.