Multi-SO3H functionalized mesoporous polymeric acid catalyst for biodiesel production and fructose-to-biodiesel additive conversion

Novel and efficient multi-SO3H functionalized mesoporous polymeric solid acid was synthesized from sulfonation of ethylenediamine (En)-functionalization of mesoporous polydivinylbenzene. The solid acid was demonstrated to be efficient for biodiesel production by esterification of various free fatty acids (FFAs) and synthesis of levulinate esters as biodiesel additive from fructose.300