In order for hydrothermal liquefaction to work, which of the following are necessary?
High temperatures and high pressure High pressure and no oxygen High temperatures and high oxygen High temperatures and low oxygen
For hydrothermal liquefaction (HTL) to work effectively, the necessary conditions are high temperatures and high pressure. This process typically involves temperatures ranging from 250 to 350 degrees Celsius and pressures of around 10 to 25 MPa. Additionally, it is important to have an environment with little to no oxygen to prevent combustion and promote the conversion of biomass into liquid biofuels. Therefore, the most accurate answer from your options would be:
High pressure and no oxygen.
However, it is important to note that high temperatures are also