
DROP-IN BLENDING. Obtaining a new generation of blend-type products from urban waste for co-processing in refineries and production of green fuels.
2025-2027
PROJECT SCOPE
Demonstrate the feasibility of transforming urban waste (biomethanization digestate and pruning waste) by means of HTL hydrothermal processes into blend-type products to co-process them with current refinery streams and produce green fuels promoting the ecological transition. With this, a solution is sought to:
- The high impact of the investment required to transform refineries.
- Reducing the pressure on feedstocks currently processed in refineries to obtain biofuels.
- Increase the biofuel production capacity.
- Addresses the management problem that exists with the generation of the waste known as red mud or red mud in the aluminum generation industry.
CENER ROLE
Project leader.
- Develop, scale-up and validate a digestate denitrification pretreatment to TRL4-5.
- Develop and validate the thermal autohydrolysis technology as a pretreatment to the hydrothermal liquefaction process (HTL) by testing urban waste mixtures.
- Perform co-processing of raw materials in the HTL process (called co-HTL).
- Evaluate the potential utilization of a problematic industrial waste from primary aluminum production (sludge/red mud: red mud) as an iron-based catalyst to generate H2 in-situ during the HTL process to obtain a better quality biocrude.
- Develop a fractional distillation to obtain distillates or blend type products for blending over current refinery streams, whether of fossil or renewable origin.