Method for preparing unrefined saf intermediate using polyols and the saf intermediate prepared thereby

Abstract

A method for preparing unrefined sustainable aviation fuel (SAF) includes: adding a catalyst to a reaction kettle, then adding a polyol solution to fill the reaction kettle; sealing the reaction kettle, introducing gas into the reaction kettle to discharge excess polyol solution and replace the atmosphere in the reaction kettle; stirring thoroughly to mix the catalyst uniformly with the polyol solution; then continuing to introduce gas into the reaction kettle to increase the internal pressure; subsequently conducting the reaction, and after the reaction is completed, collecting the upper liquid product to obtain unrefined SAF. The invention employs a one-pot method to prepare unrefined SAF, utilizing the interaction between polyols and solvents to provide Hfor the system, thereby achieving carbon chain growth and hydrodeoxygenation without the need for high-pressure H. The synthesis protocol demonstrates operational simplicity, employs mild reaction conditions, and utilizes commercially accessible feedstock with favorable cost-efficiency profiles.