The process converts the feedstock into several product fractions: an energy-rich bio-crude oil, an aqueous phase, and smaller amounts of solids (biochar) and gas. A key advantage of HTL is that wet feedstocks can be processed directly, without energy-intensive drying beforehand. This makes HTL particularly well suited for feedstocks with high moisture content. At industrial scale, heat is recovered from the product streams and used to preheat the incoming feedstock. The absence of a drying step, combined with efficient heat integration, contributes to the high energy efficiency of the HTL process.
We work within the following areas
- Testing how different types of biomass and residue streams affect the HTL process and product quality
- Characterisation and further utilisation of HTL products, including bio-crude oil and biochar
- Hydrothermal carbonisation (HTC) for production of biochar from wet residue streams
- Development of process models for hydrothermal processes
- Optimisation of HTL processes
- Energy efficiency and heat integration
- Reduction of emissions from HTL processes
- Techno-economic analyses
Methods
Our projects range from feasibility studies and laboratory experiments to testing at larger scale. We combine experimental work, process modelling and techno-economic analyses.
Why choose SINTEF?
SINTEF offers a unique laboratory infrastructure for investigating the hydrothermal conversion of wet biomass and residues. We combine experimental expertise with process modelling and techno-economic analyses to develop knowledge and solutions relevant to industrial application. We collaborate with Norwegian and international industry partners, suppliers of feedstock and technology, and end users.