Valorization of hydrothermal liquefaction aqueous phase ...
In comparison, the HTL-AP derived from algae had a much higher ammonia content which varied from 0.2– 16.0 g/L, leading to an average value of 6.9 g/L. The total phosphorus (TP) content in HTL-AP derived from algae was found to be much higher than the other three types of feedstocks.