• 专利标题:   Depolymerization of lignin based on sub-molten salt oxidation system comprises e.g. subjecting sub-molten salt solution, catalyst, lignin and oxidant to oxidative depolymerization reaction to get gas-phase product and liquid-phase product, and separating to obtain hydrogen from gas-phase product.
  • 专利号:   CN114671918-A
  • 发明人:   ZHANG Y, XIE Y, CUI H, ZHUANG S, SUN J, WANG J, SONG F
  • 专利权人:   UNIV SHANDONG TECHNOLOGY
  • 国际专利分类:   C01B003/02, C01B003/34, C07G001/00
  • 专利详细信息:   CN114671918-A 28 Jun 2022 C07G-001/00 202297 Chinese
  • 申请详细信息:   CN114671918-A CN10349205 01 Apr 2022
  • 优先权号:   CN10349205

▎ 摘  要

NOVELTY - Method for depolymerization of lignin based on sub-molten salt oxidation system comprises subjecting sub-molten salt solution, catalyst, lignin and oxidant to oxidative depolymerization reaction to obtain gas-phase product and liquid-phase product, separating to obtain hydrogen from gas-phase product, cooling the liquid phase product under reduced pressure, adjusting the pH value, filtering, extracting, concentrating and separating to obtain small molecular compound; where the sub-molten salt solution is composed of alkali, inorganic salt and water. USE - Method for depolymerization of lignin based on sub-molten salt oxidation system, which is used in technical field of biomass resource utilization. ADVANTAGE - The method: constructs lignin depolymerization system with inorganic salt and strong alkali; can effectively depolymerize lignin under mild conditions to produce hydrogen and small molecular organics; and creates a new transformation route for the utilization of lignin resources.