) The total operation cost was calculated as $9.7 per ton. Total unit costs of torrefaction are $16.3 per ton of feedstock, which is equal to about $23 per ton of torrefied biomass.
) The total operation cost was calculated as$9.7 per ton. Total unit costs of torrefaction are $16.3 per ton offeedstock, which is equal to about $23 per ton of torrefied biomass.