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Introduction

Hydrothermal Liquefaction (HTL) is an advanced thermochemical conversion process that transforms wet biomass into a liquid bio-crude oil under high temperature and pressure conditions, typically 280°C to 380°C at 100 to 300 bars. Unlike processes requiring dry feedstocks, HTL uses water as both the reaction medium and a reactant, breaking down complex organic molecules including lipids, proteins, and carbohydrates into a dense, energy-rich bio-crude. This bio-crude serves as a direct feedstock for renewable fuel refining, offering a viable pathway toward sustainable aviation fuel (SAF), marine fuel, and green diesel production. Kerone’s HTL systems are engineered for reliability under extreme process conditions, delivering bio-crude with high calorific values and manageable oxygen content.

Why Choose Kerone Hydrothermal Liquefaction Systems

Kerone’s approach to Hydrothermal Liquefaction Systems engineering is grounded in the practical realities of industrial continuous operation. Operating at near-critical and supercritical water conditions demands materials, sealing, and control systems that many general thermal equipment suppliers cannot match. Kerone brings specialized knowledge in high-pressure reactor design, corrosion-resistant alloy selection, and continuous feed-discharge systems that maintain process stability over long operating cycles. From the feed pump system to the bio-crude separation train, every component is designed for durability, safety, and repeatable product quality.

Types and Features of Hydrothermal Liquefaction Systems

Kerone’s Hydrothermal Liquefaction Systems are available in batch research configurations and continuous industrial-scale designs. Continuous systems include a high-pressure feed slurry pump, a preheater section, a tubular or CSTR reactor vessel, a product separation system for bio-crude, aqueous phase, and gas, and a heat recovery network. Batch systems are used for feedstock screening and product property evaluation. Key design parameters, including reactor residence time, heat exchange efficiency, and phase separation are customized based on biomass composition and target product specifications.

Key Features

  • Operates at 280–380°C and 100–300 bars suitable for sub-critical and near-critical water conditions
  • Continuous plug-flow and CSTR reactor configurations for industrial throughput
  • High-pressure slurry feed pumping system designed for abrasive and viscous feedstocks
  • Integrated bio-crude / aqueous / gas three-phase separation system
  • Heat integration between product streams and feed preheating for energy efficiency
  • Built with high-grade stainless steel and Hastelloy alloys for corrosion resistance
  • PLC and SCADA-based process automation with safety interlock systems
  • Scalable from bench-scale R&D units to multi-tonne per day industrial plants

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Applications of Hydrothermal Liquefaction Systems

Kerone’s Hydrothermal Liquefaction Systems are extensively used in renewable energy, waste-to-fuel, and bio-refinery industries. Typical applications include:
    • Converting algal biomass into bio-crude for refining into aviation and marine fuels
    • Processing municipal sewage sludge into liquid fuel and energy-dense bio-crude
    • Treating wet agricultural waste streams, including animal manure, for fuel recovery
    • Supporting bio-refinery operations where integrated fuel, chemical, and nutrient recovery is needed
    • Producing renewable crude as a substitute or blend component in petroleum refinery operations
    • Enabling continuous waste-to-energy operations in food processing and organic waste facilities
Hydrothermal Liquefaction stands at the intersection of waste management and renewable fuel production, offering a technically credible and commercially scalable path from wet organic waste to usable energy. Kerone’s HTL systems give industrial operators the engineering depth, process control, and material quality needed to make this transition at a meaningful scale. As demand for sustainable fuels intensifies across aviation, marine, and road transport sectors, Kerone’s HTL technology provides an infrastructure-ready solution that connects today’s waste streams to tomorrow’s fuel supply.

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Frequently Asked Questions (FAQ)

  • HTL is a thermochemical process that converts wet biomass into a liquid bio-crude oil using high-temperature, high-pressure water as the reaction medium, without the need for prior drying of the feedstock.

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