Biomass large scale supply
One of the biggest problems related to biomass large scale supply is the energy density. Briefly, if biomass moisture of conventional wood is 30%, this means that every 1 ton of wood transported, 300 kg are water. Additionally, biomass feedstock shape (chipped, pelletized, rounded, baled), strongly influences the bulk density and affect the transportation economics. For this reason, compactation and densification are considered crucial for an efficient biomass supply. The figure below shows the energy density and bulk density of different biobased feedstock.
In addition to the bulk and energy density, large scale biomass supply is affected by a wide range of bottlenecks including raw material initial cost, biomass producers involvement, environmental regulation and sustainability. Finding solutions for all these problems means finding the solution for the creation of the future biomass commodity in Europe and worldwide.
|High quality biomass (wood) is considerable but limited expensive and not always sustainable||Utilization of agro forestry residues. High availability and fully environmentally sustainable|
|Agro-forestry residues have lower quality and higher micro-elements (K, Ca, Mg, ashes) content||Blending of different biomass feedstocks to arrange suitable average composition|
|Availability is mainly reduced to forests areas||Residues have much lower costs and dispersed and available almost everywhere|
|Low energy density and bulk volume (KJ/m3) of fresh biomass affect storage costs and transportation efficiency||First step chipping activities, enhance biomass energy density increasing transportation efficiency|
|Biomass degradability affect large distances transport activities, long time storage||Agropellets production, with low moisture and high energy density. Avoiding degradation and transportation issues.|