COMSYN project partners successfully validate Fischer-Tropsch biofuels production

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Type of post: NEWS.

Production of biofuel by gasification of biomass residues was successfully validated within the framework of the COMSYN project last month. The process performance was verified with bark in an 80 hour-long test run at VTT. The syngas conversion to Fischer-Tropsch (FT) products was conducted by INERATEC GmbH.
Press release: “Complete production chain from biomass residues to Fischer-Tropsch products successfully validated”, 26/9/2019.

Figure 1. COMSYN logo with slogan

The project

COMSYN is a four-year EU Horizon 2020 project that lasts from 2017 to 2021 with a budget of EUR 5.1 M€ (Grant Agreement No 727476). The project consortium consists of seven partners from four different countries combining research institutes, SME and top-level European industry.

COMSYN aims to develop a new BTL (Biomass-To-Liquid) production concept by means of a compact gasification and synthesis process. Biofuel production costs will be reduced by up to 35% compared to alternative routes, which translates to less than 0.80 €/L production cost for diesel. The production concept is based on the distributed primary conversion of various kinds of biomass residues to intermediate liquid products at small-to-medium scale (10-50 ktons/year FT products, 30–150 MW biomass) units located close to biomass resources. The FT products will be upgraded to fuels in existing central oil refineries, bringing the benefits of economy of scale to the overall process.

The test

The main focus of the test was to study and verify the performance of the gas cleaning train, and especially the entire synthesis process with real wood-derived gasification gas:
- Crushed bark was gasified in a fluidized-bed reactor with steam as the main gasification agent.
-  The raw gasification gas was filtered with advanced metal filters of GKN Sinter Metals Filters GmbH.
- Tars and light hydrocarbon gases were reformed using the staged reformer concept developed by VTT.
- Final cleaning of the reformed synthesis gas of sulphur and other remaining contaminants was realized through a robust sorbent-based process developed by VTT.
- The ultra-clean syngas was compressed and led to VTT's mobile synthesis unit called MOBSU, which utilizes the innovative compact FT technology of INERATEC.
- Two products, the FT- wax and FT-oil streams, were collected and will be further refined to high-quality transport fuels by UniCRE (Unipetrol Centre for Research and Education).

Based on the achieved results, industrial-scale plants in the range of 25,000–50,000 tons/year will be designed. Techno-economic and environmental assessments, as well as business case studies, will be carried out by the DLR German Aerospace Center and two engineering companies (Wood from Italy and ÅF-Consult from Finland).

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