HETEROGENEOUS BRONSTED ACID CATALYSTS AND ESTERIFICATION OF FATTY ACID WITH POLYHYDRIC ALCOHOL USING THE SAME

摘要

The present invention relates to a carbon-based heterogeneous Bronsted acid catalyst and a method for esterifying a fatty acid by using a polyhydric alcohol using the same, wherein the method comprises: a powder preparation step of pulverizing a woody biomass to produce a powder; A carbon body manufacturing step for producing a carbon body by incompletely carbonizing the powder by heat treatment; A step of introducing a sulfonic acid group by introducing a sulfonic acid group by treating sulfuric acid substituted with an electron withdrawing group to the carbon body to produce a heterogeneous Bronsted acid catalyst having a sulfonic acid group introduced therein; And performing an esterification reaction of the polyhydric alcohol and the fatty acid under the solventless condition using the acid catalyst. According to the present invention, a high esterification yield can be obtained by applying a carbon-based heterogeneous Bronsted acid catalyst having excellent mechanical properties and excellent catalytic activity to the esterification reaction between a polyhydric alcohol and a fatty acid.