Hydrogenolysis of dealkaline lignin catalyzed by noble metal cooperated with metal chloride. (February 2019)

• Record Type: Journal Article
• Authors: Shu, Riyang; Lin, Biqin; Wang, Chao; Chen, Ying
• Is Part Of: Energy procedia. Volume 158(2019)
• Page Start: 406
• Page End: 411
• Publication Date: 2019-02
• Subjects: lignin -- hydrogenolysis -- aromatic monomers -- condensation -- methylation; Power resources -- Congresses; Power resources -- Periodicals; Power resources; Conference proceedings; Periodicals; 333.7905
• DOI: 10.1016/j.egypro.2019.01.124
• Languages: English
• ISSNs: 1876-6102

Abstract

Abstract: High yield of value-added chemicals from lignin was always a big challenge on biomass utilization. A hydrogenolysis method of dealkaline lignin catalyzed by noble metal cooperated with metal chloride in methanol was proposed, producing high yields of aliphatic alcohols and aromatic monomers. The performances, especially the lignin liquefaction and product distribution were significantly affected by the catalysts, reaction temperature and time. 2.7% aliphatic alcohols and 17.4% monomers could be obtained at 280 °C for 5 h using Pd/C cooperated with CrCl3 under the optimized condition. Hydrogenolysis, condensation and methylation occurred simultaneously during the process. The condensation was preferred at excessive high temperature and prolonged time to form the residues.