4.8 Review

Hydrothermal amination of biomass to nitrogenous chemicals

期刊

GREEN CHEMISTRY
卷 23, 期 18, 页码 6675-6697

出版社

ROYAL SOC CHEMISTRY
DOI: 10.1039/d1gc02505h

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资金

  1. National Natural Science Foundation of China [21908033, 21878161, 21666008]
  2. Fok Ying-Tong Education Foundation [161030]
  3. Program of Introducing Talents of Discipline to Universities of China (111 Program) [D20023]
  4. Guizhou Frontiers Science Center for Asymmetric Synthesis and Medicinal Molecules [[2020]004]

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Utilizing wet biomass for hydrothermal amination is an effective technical strategy that reduces energy consumption and is environmentally friendly. This technology can convert natural biomass, bio-polymeric derivatives, and bio-based platform molecules into organonitrogen chemicals, with significant potential for large-scale production.
Biomass is the most abundant and low-cost renewable source for the production of value-added nitrogen-containing compounds. However, a large amount of water exists in natural biomass and relevant bio-derivatives, which often need to be removed prior to conducting valorization processes. Direct use of wet biomass and bio-derivatives as feedstocks definitely avoids energy consumption of drying processes, in which water acts as a reactive medium and is friendly to the environment and reaction devices. Hydrothermal amination of wet biomass feedstocks is thus an attractive technical strategy for producing nitrogen-containing compounds. This review summarizes state-of-the-art technologies in hydrothermal amination of natural biomass, bio-polymeric derivatives, and bio-based platform molecules with or without nitrogenous species into organonitrogen chemicals. Efforts are made to shed light on conversion routes and economic/environmental impacts of biomass hydrothermal amination. Challenges and perspectives on the large-scale production of biomass-derived nitrogenous compounds are also put forward.

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