Today's biomass conversion processes require specific feedstocks specifications that differ considerably among the various conversion pathways:
Biochemical conversion pathways generally perfer herbaceous or hardwood biomass milled to intermediate mean particle sizes typically ranging from 6-50 mm.
Pyrolysis requires a finely milled feedstock, typically less than 2 mm.
Gasification can have a wide range of particle size specifications depending on the specific gasification technology.
Combustion via co-firing with coal favors woody bio-mass that has been chipped and torrefied followed by fine-milling to produce a fine, coal-like feedstock.
In each case, tight tolerances on the particle-size distribution and precise preprocessing conditions are required.
The BFNUF feedstock PDU provides access to a range of biomass resources and preprocessing capabilties to produce virtually any feedstock, any specification, at any scale.
The Feedstock PDU capabilities are grouped into five categories, with a variety of equipment types and sizes available in each: size reduction, separation/fractionation, thermal treatment, chemical treatment, and densification.
A unique capabiltiy of the Feedstock PDU is to test and develop fully integrated and instrumented industrial-scale preprocessing systems. Continuous processing and data collection enables:
Identifcation of preprocessing bottlenecks.
Exploration of the interaction and synergies of preprocessing operations affecting feedstock specifications and conversion performance.
Optimization of integrated preprocessing systems.