|About this Abstract
||2020 TMS Annual Meeting & Exhibition
||Energy Technologies and CO2 Management Symposium
||Photocatalytic Hydrogenolysis to Convert Lignin-derivatives to Phenol Under Ambient Conditions
||Yun-Chung Shen, Jeffrey C.S. Wu
|On-Site Speaker (Planned)
In recent years, excessive CO2 produced from the fossil fuels leads to climate change. Therefore, the technology development of renewable energy is important. Lignin is the second abundant biomass form on earth behind cellulose. Lignin is the most promising nature resource for producing aromatic compounds attributed to the large group aromatic structure.
This research attempted to simulate the bond dissociation status in lignin by using model compound, benzyl phenyl ether (BPE) under ambient pressure. The BPE represented one of the major type of ether linkages, α-O-4 linkage. The BPE can be dissociated by photocatalytic hydrogenolysis reactions. The hydrogenolysis of BPE was carried out using 1 wt%Pd/TiO2 photocatalyst under UV-light irradiation at ambient temperature. The BPE conversion can reach above 95% in 3 hours and the maximum phenol yield is near 60%. Our study showed that photo hydrogenolysis by photocatalyst is a promising method to convert biomass into valuable products.