Pretreatment BioTrac, Heat and Chemical Recovery

Pretreatment is one of the most critical and challenging process step. The BioTrac is a continuously operated system, designed for “steam explosion” of the biomass which basically means:

Steam heating of ligno-cellulosic material followed by rapid de-pressurization
Hemicelluloses decompose to monomers and lignin is softened
The biomass fibre structure is partly destroyed at dicharge
Fibres, soft lignin and sugars create an excellent raw-material for pelleting
The steaming based process is very safe

Continuously operated pretreatment BioTrac reactor

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