"This may... may be some kind of fossil energy."
"Fossil energy?"
Lille raised an eyebrow. Generally speaking, the highest grade fossil fuels were used in aerospace, where the data was relatively easier to query.
Dr. Otto nodded, showing that he was quite surprised as well.
"Strictly speaking... actually, I can't guarantee it, but the main components in the residue have an extremely high carbon-hydrogen ratio, and there are many hydrocarbon compounds."
"Just these characteristics?"
These characteristics seemed too few.
If it were a fossil energy, one should also be able to observe sulfur and nitrogen compounds, as well as some metals that exist as trace elements, such as nickel and vanadium.
Under the observation of infrared spectroscopy and Raman spectroscopy, one could observe its molecular structure. At specific wavelengths, the absorption peaks would also resemble those of known fossil energies.