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BIOENERGY TECHNOLOGIES OFFICE
Blending of Biomass into Uniform Feedstocks
Blending a broad spectrum of feedstocks into a consistent format that meets rigorous specifications is expected to increase the avail-
able feedstock supply, reduce feedstock costs, and facilitate efficient thermochemical conversion. For more information on biomass
pretreatment and blending into commodity feedstocks for processing into biofuels, please see our brochure on “Feedstock Supply and
Logistics.”
Short-rotation
woody crops:
These biomass crops consist of
fast-growing tree species, which
are often harvested within 3 to 10
years of planting.
Herbaceous crops:
These crops typically include
perennial grasses (such as
switchgrass, which is native
to many regions across North
America).
Agricultural residues:
Municipal urban
residues:
Clean waste from residential,
commercial, and industrial
activities are included (e.g., grass
clippings, unusable pallets, and
municipal sorted waste).
Waste products from agricultural
activities (e.g., plant parts left
in the field after harvest) and
secondary residues, such as
manure and food processing
wastes, can be useful feedstocks.
Forestry residues:
Oils:
This category includes logging
residues from conventional
harvest operations, forest
management, and land clearing;
secondary residues include mill
wastes.
This category includes algae, bio-
oils (for conversion to biodiesel
or for hydrotreating into green
diesel), vegetable oil (e.g., from
soybeans), used fryer oil, and
tallow (animal fats).
Photos: (left column-top to bottom) USDA/d1253-1, INL, NREL/04190
(
right column-top to bottom) USDA/k11202-1, NREL/00081, Vorticom
Learn More
bioenergy.energy.gov
For more information, visit:
bioenergy.energy.gov
DOE/EE-0949 • July 2013
Printed with a renewable-source ink on paper containing at least 50% wastepaper, including 10% post consumer waste.
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