Algae are a promising source for making eco-friendly aviation fuel. Different types of algae have varying amounts of carbon in their lipids, affecting how much fuel can be produced. Four methods were studied to make jet fuel from algae: Fischer–Tropsch, hydrotreated renewable, pyrolysis-hydrotreated, and hydrothermal liquefaction-hydrotreated processes. Each method produces jet fuel with different carbon distributions. For example, the Fischer–Tropsch process can be adjusted to make fuel similar to kerosene. The hydrotreated renewable process creates a mix of carbon compounds due to specific reactions. Pyrolysis and hydrothermal liquefaction processes have similar carbon distributions. Adjusting factors like temperature and catalysts can help produce specific carbon compounds in the biofuels.