Biocrude can be upgraded and distilled into fuel fractions such
as green diesel, petrol and jet fuels in the existing petroleum
refineries. Unlike first and second generation biofuels, biocrude
processing does not require any new downstream processing
Other biofuel production technologies focus on producing
biodiesel from the lipid fraction of biomass feedstocks. Algae and
microbes with higher lipid content are preferred for the production
of biodiesel. But Aban's algae biocrude production technology does
not require high lipid containing strains. This technology can use
biomass with 80-90% moisture as it eliminates the need for drying
which consumes more energy. Using this technology, even the algal
strains containing less than 5% lipids can yield 30-60% biocrude.
Biodiesel is produced using a trans-esterification process and it is
defined under the standard of ASTM D6751 as "a fuel comprised of mono-alkyl
esters of long-chain fatty acids derived from vegetable oils or animal
fats." Biodiesel is also referred to as FAME (fatty acid methyl ester).
Biodiesel is chemically different from petrodiesel because it contains
oxygen atoms. This leads to different physical properties for biodiesel.
Green Diesel or Renewable Diesel derived from Biocrude refers to petrodiesel-like
fuels derived from biological sources that are chemically not esters and
thus distinct from biodiesel. Green diesel or renewable diesel is chemically
the same as petrodiesel, but it is derived from biomass that meets the
standards of ASTM D975 and are not mono-alkyl esters.