Method for catalyzing high-concentration cellulose to synthesize 5-hydroxymethylfurfural

• Main Authors: CHEN BINGLIN, HAO JINBO, ZHAO HAORAN, TAO HONGGE, HE CHAO, XU GUIZHUAN, LIANG XUANYU, JIA YU, JIAO YOUZHOU, LIU XINXIN
• Format: Patent
• Language: Chinese; English
• Published: 26.07.2024
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; HETEROCYCLIC COMPOUNDS; METALLURGY; ORGANIC CHEMISTRY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; THEIR RELEVANT APPARATUS; TRANSPORTING

The invention belongs to the technical field of biomass resource utilization, and particularly relates to a method for catalyzing high-concentration cellulose to synthesize 5-hydroxymethylfurfural. According to the method, a mixed acid of Bronsted and Lewis is used as a catalyst, a mixture of water and tetrahydrofuran or methyl isobutyl ketone is used as a solvent, and the concentration of cellulose in the solvent is 50-100g/L. The invention provides a method for synthesizing 5-hydroxymethylfurfural by directly catalyzing high-concentration cellulose with mixed acid. The method has the advantages of simple catalytic system, low catalyst cost, high product concentration and basically no humus in the product; the method is simple and easy to operate, separation and extraction are easy, the used solvent system can be repeatedly used, industrial production of HMF is facilitated, and the yield is basically not affected. 本发明属于生物质资源化利用技术领域，特别涉及一种催化高浓度纤维素合成5-羟甲基糠醛的方法。以Brønsted和Lewis混合酸作为催化剂，以水和四氢呋喃或甲基异丁基酮的混合物作为溶剂，纤维素