Pretreatment is not a cost. It is a compound multiplier.
of Total CAPEX is pretreatment
of Total OPEX is pretreatment
Smaller Digester typical volume reduction
Yield Improvement potential upside
Uniform particle structure = predictable feed profile. No more guessing.
Hydrophilic biomass sinks and stays submerged. No crust, no de-scumming.
Better rheology. Pumps work as designed. Reduced maintenance downtime.
Stable microbial environment = consistent daily gas production curve.
Shorter HRT means smaller volumes. Save 20-40%| on civil construction cost.
Automated, continuous operation. Less labour. Less human error.
Extruder ‡ netiBIO
It is NOT an extruder. It is NOT plastic or food extrusion. It is NOT just shredding or size reduction
CAPEX is High
<10% of total plant CAPEX is all netiBIO pretreatment costs
OPEX is High
OPEX is where STEER's engineering really shines. 7-12% of total plant OPEX with netiBIO (Power + Wear parts + Manpower) *depending on feedstock type
Napier needs no Pretreatment
If HRT doubles, your digester cost doubles. Pretreatment is the optimisation lever.
No single system for multiple feedstocks
Transforming Biomass into Bioenergy: netiBIO is a next-generation bio-processor that conditions diverse biomass feedstocks for higher yields, efficiency and sustainability in biofuel and renewable energy production.
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