• 专利标题:   Lignin depolymerization catalyst useful e.g. for producing lignin-derived aromatic monomer, comprises e.g. support comprising carbon nitride, and transition metal bonded to nitrogen functional group of support.
  • 专利号:   KR2022116620-A
  • 发明人:   KIM J H, PARK J Y, VERMA D
  • 专利权人:   UNIV SUNGKYUNKWAN RES BUSINESS FOUND
  • 国际专利分类:   B01J021/18, B01J023/42, B01J023/44, B01J023/46, B01J023/755, B01J037/02, B01J037/08, C07C041/58, C07C043/23
  • 专利详细信息:   KR2022116620-A 23 Aug 2022 B01J-023/755 202273 Pages: 27
  • 申请详细信息:   KR2022116620-A KR019681 15 Feb 2021
  • 优先权号:   KR019681

▎ 摘  要

NOVELTY - Lignin depolymerization catalyst comprises a support comprising carbon nitride; and a transition metal bonded to a nitrogen functional group of the support, where the transition metal is included in an amount of 0.1-1 wt.% based on the total weight of the lignin depolymerization catalyst. USE - The lignin depolymerization catalyst is useful for producing lignin-derived aromatic monomer (claimed) in paper industry. ADVANTAGE - The method produces a high yield of lignin aromatic monomer directly from lignocellulosic biomass using catalyst supported with a very low content of transition metal, so that it is possible to separate lignin and recover holocellulose more economically than conventional techniques. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: preparing lignin depolymerization catalyst, comprising preparing a mixture by dissolving transition metal in a solvent, and mixing with support, and calcining the solid formed by evaporating the solvent of the mixture; and producing lignin-derived aromatic monomer, comprising introducing lignin depolymerization catalyst, lignocellulosic biomass material, and methanol solution containing support and transition metal impregnated in the support into a reactor, and converting lignin of lignocellulosic biomass material into an aromatic monomer by increasing the temperature and pressure inside the reactor.