Carbon to energy conversion technology

[Ubertino]

BTG-BTL’s fast pyrolysis technology

Technology

BTG-BTL’s fast pyrolysis technology is originally based on the rotating cone reactor (RCR). Biomass particles at room temperature and hot sand particles are introduced near the bottom of the cone, where the solids are mixed and transported upwards by the rotating action of the cone. Over the years, BTG-BTL has further improved and optimised the concept. The optimised is easy to scale-up and is characterised by an intense mixing without the need of an inert carrier gas. This results in a remarkable small reactor, reduced system complexity and minimum down stream equipment size.

In the process 70 wt.% bio-oil and only 30 wt.% char and gas are produced as primary products. Since no inert carrier gas is used, the pyrolysis products are undiluted and hence small vapour flow results in downstream equipment of minimum size.

Charcoal and sand are recycled to the combustor, where charcoal is burned to reheat the sand. The heat from the flue gases and the heat produced by the combustion of pyrolysis gases can be utilized in for example a steam turbine system.

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