Recent Development in Chemical Depolymerization of Lignin: A Review

By Hai Wang, M. Tucker, Yun Ji. 2013

237 citations recorded by the source corpus.

This article reviewed recent development of chemical depolymerization of lignins. There were five types of treatment discussed, including base-catalyzed, acid-catalyzed, metallic catalyzed, ionic liquids-assisted, and supercritical fluids-assisted lignin depolymerizations. The methods employed in this research were described, and the important results were marked. Generally, base-catalyzed and acid-catalyzed methods were straightforward, but the selectivity was low. The severe reaction conditions (high pressure, high temperature, and extreme pH) resulted in requirement of specially designed reactors, which led to high costs of facility and handling. Ionic liquids, and supercritical fluids-assisted lignin depolymerizations had high selectivity, but the high costs of ionic liquids recycling and supercritical fluid facility limited their applications on commercial scale biomass treatment. Metallic catalyzed depolymerization had great advantages because of its high selectivity to certain monomeric compounds and much milder reaction condition than base-catalyzed or acid-catalyzed depolymerizations. It would be a great contribution to lignin conversion if appropriate catalysts were synthesized.

Subfields: Biomedical Engineering, Biotechnology, Plant Science

View Paper: https://www.semanticscholar.org/paper/8fba6a999fc56ffe40df9f5dbaa869c9f003785e

Citations in the corpus

• Lignin utilization: A review of lignin depolymerization from various aspects (2019, unknown): “, the chemical catalysts used for lignin depolymerization generally can be further divided into five different categories, including: (1) acid-catalyzed, (2) base-catalyzed, (3) metallic catalyzed, (4) ionic liquids-assisted catalyzed and (5) supercritical fluids-assisted catalyzed [90].”