As the demand for energy intensifies amid growing concerns for
drastic climate change, biofuels are needed more than ever as an
alternative to fossil fuels. Third generation renewable liquid biofuels
derived from microalgae could potentially supplement incremental
global energy demand. Microalgae grow rapidly, produce
energy dense lipids, are able to utilise marine, freshwater and
wastewater, grow on non-agricultural land and remediate waste
or atmospheric carbon dioxide. Microalgae biomass feedstock for
HTL bio-oil production benefits from reduced energy requirements
for complete dewatering [1–20].