Efficient deoxygenation of waste cooking oil over CoO-LaO-doped activated carbon for the production of diesel-like fuel.

Untreated waste cooking oil (WCO) with significant levels of water and fatty acids (FFAs) was deoxygenated over CoO-LaO/AC catalysts under an inert flow of N in a micro-batch closed system for the production of green diesel. The primary reaction mechanism was found to be the decarbonylation/decarboxylation (deCOx) pathway in the CoO-LaO/AC-catalyzed reaction. The effect of cobalt doping, catalyst loading, different deoxygenation (DO) systems, temperature and time were investigated.