A review of aviation oil production from organic wastes through thermochemical technologies

Accounting for the wide application of aviation oils, preparation of aviation oils via clean and pollution-free conversion technologies is gradually emerging. In this paper, aviation oil production from organic wastes through different thermochemical technologies were reviewed, especially the three pyrolysis methods (conventional pyrolysis, microwave-assisted pyrolysis, and solar-assisted pyrolysis). Then properties and yields of aviation oils produced from these thermochemical technologies were discussed. The review results show that the main components of aviation oils are aliphatic hydrocarbons and aromatic hydrocarbons (i.e., alkanes, alkene, monocyclic aromatic hydrocarbons, and polycyclic aromatic hydrocarbons), and the yields of aviation oils obtained from conventional pyrolysis, microwave-assisted pyrolysis, and solar-assisted pyrolysis vary significantly in the ranges of 10.9–90.5 wt.%, 15.34–98.3 wt.%, and 6.1–87 wt.%, respectively. Although many thermochemical technologies have been studied to prepare aviation oils, there is still a long way to improve quantity and quality of aviation oils as these two aspects are significantly affected by raw material, reactor configuration, reaction temperature, catalyst, etc.