BTG's Pyrolysis Technology
BTG’s patented fast pyrolysis technology is based on intensive mixing of biomass
particles and hot sand particles in a modified rotating cone reactor. The
unique design is characterised by intense mixing without need of
an inert gas carrier, so at the end the pyrolysis products are undiluted. This results in a remarkable small reactor, reduced system
complexity and minimum down stream equipment size. The innovative
reactor is the result of research done at the University of Twente, the
Netherlands that BTG further improved and optimised.
Vapours produced in the reactor are rapidly cooled in a condenser
yielding the oil product and some permanent gases. In the process up to
75 wt% of pyrolysis oil and only 25 wt% of char and gas are produced as primary products. In only a few seconds the biomass is transformed into bio-oil.
Charcoal and sand are recycled to a combustor, where charcoal is burned
to reheat the sand. The permanent gases can be utilised in a gas engine
to generate electricity. In principal, no external utilities are
required.
BTG Technology Advantages
- High through put per reactor volume (compact design)
- Absence of inert gas carrier: minimum downstream equipment size (compact), maximum caloric value of pyrolysis gas
- Very simple process: no gas recycling is required
- Easy to scale-up
- Able to produce electricity or to produce a combination of electricity and steam for other applications
- High flexibility for feedstocks: waste material, large particle size etc
- No particles present in the pyrolysis oil
The comparison of different pyrolysis technologies can be found on the website of BTG-BTL.
For more information on BTG’s pyrolysis technology please visit the website of the BTG Biomass Technology Group or contact us.