CATALYST FOR PREPARING LEVULINIC ACID OR ESTERS THEREOF FROM BIOMASS AND METHOD FOR PREPARING LEVULINIC ACID OR ESTERS THEREOF USING THE CATALYST

摘要

PURPOSE: A catalyst for preparing levulinic acid or esters thereof from biomass and a method for preparing levulinic acid or esters thereof using the catalyst are provided to facilitate preparing processes without a process of separating by-products such as formic acid. CONSTITUTION: A catalyst for preparing levulinic acid or esters thereof from biomass comprises a graphene oxide carrier and a functional group carried in the carrier. The functional group is selected from groups including carboxylic acid (-COOH), sulfonic acid (-SO3H), and phosphoric acid (-PO3H2). A method for preparing levulinic acid or esters thereof includes the steps of: preparing glucose from cellulose or hemicelluloses; and preparing levulinic acid from the glucose.